1 2 OpenSSL CHANGES 3 _______________ 4 5 This is a high-level summary of the most important changes. 6 For a full list of changes, see the git commit log; for example, 7 https://github.com/openssl/openssl/commits/ and pick the appropriate 8 release branch. 9 10 Changes between 1.1.1v and 1.1.1w [11 Sep 2023] 11 12 *) Fix POLY1305 MAC implementation corrupting XMM registers on Windows. 13 14 The POLY1305 MAC (message authentication code) implementation in OpenSSL 15 does not save the contents of non-volatile XMM registers on Windows 64 16 platform when calculating the MAC of data larger than 64 bytes. Before 17 returning to the caller all the XMM registers are set to zero rather than 18 restoring their previous content. The vulnerable code is used only on newer 19 x86_64 processors supporting the AVX512-IFMA instructions. 20 21 The consequences of this kind of internal application state corruption can 22 be various - from no consequences, if the calling application does not 23 depend on the contents of non-volatile XMM registers at all, to the worst 24 consequences, where the attacker could get complete control of the 25 application process. However given the contents of the registers are just 26 zeroized so the attacker cannot put arbitrary values inside, the most likely 27 consequence, if any, would be an incorrect result of some application 28 dependent calculations or a crash leading to a denial of service. 29 30 (CVE-2023-4807) 31 [Bernd Edlinger] 32 33 34 Changes between 1.1.1u and 1.1.1v [1 Aug 2023] 35 36 *) Fix excessive time spent checking DH q parameter value. 37 38 The function DH_check() performs various checks on DH parameters. After 39 fixing CVE-2023-3446 it was discovered that a large q parameter value can 40 also trigger an overly long computation during some of these checks. 41 A correct q value, if present, cannot be larger than the modulus p 42 parameter, thus it is unnecessary to perform these checks if q is larger 43 than p. 44 45 If DH_check() is called with such q parameter value, 46 DH_CHECK_INVALID_Q_VALUE return flag is set and the computationally 47 intensive checks are skipped. 48 49 (CVE-2023-3817) 50 [Tomáš Mráz] 51 52 *) Fix DH_check() excessive time with over sized modulus 53 54 The function DH_check() performs various checks on DH parameters. One of 55 those checks confirms that the modulus ("p" parameter) is not too large. 56 Trying to use a very large modulus is slow and OpenSSL will not normally use 57 a modulus which is over 10,000 bits in length. 58 59 However the DH_check() function checks numerous aspects of the key or 60 parameters that have been supplied. Some of those checks use the supplied 61 modulus value even if it has already been found to be too large. 62 63 A new limit has been added to DH_check of 32,768 bits. Supplying a 64 key/parameters with a modulus over this size will simply cause DH_check() 65 to fail. 66 (CVE-2023-3446) 67 [Matt Caswell] 68 69 Changes between 1.1.1t and 1.1.1u [30 May 2023] 70 71 *) Mitigate for the time it takes for `OBJ_obj2txt` to translate gigantic 72 OBJECT IDENTIFIER sub-identifiers to canonical numeric text form. 73 74 OBJ_obj2txt() would translate any size OBJECT IDENTIFIER to canonical 75 numeric text form. For gigantic sub-identifiers, this would take a very 76 long time, the time complexity being O(n^2) where n is the size of that 77 sub-identifier. (CVE-2023-2650) 78 79 To mitigitate this, `OBJ_obj2txt()` will only translate an OBJECT 80 IDENTIFIER to canonical numeric text form if the size of that OBJECT 81 IDENTIFIER is 586 bytes or less, and fail otherwise. 82 83 The basis for this restriction is RFC 2578 (STD 58), section 3.5. OBJECT 84 IDENTIFIER values, which stipulates that OBJECT IDENTIFIERS may have at 85 most 128 sub-identifiers, and that the maximum value that each sub- 86 identifier may have is 2^32-1 (4294967295 decimal). 87 88 For each byte of every sub-identifier, only the 7 lower bits are part of 89 the value, so the maximum amount of bytes that an OBJECT IDENTIFIER with 90 these restrictions may occupy is 32 * 128 / 7, which is approximately 586 91 bytes. 92 93 Ref: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5 94 95 [Richard Levitte] 96 97 *) Reworked the Fix for the Timing Oracle in RSA Decryption (CVE-2022-4304). 98 The previous fix for this timing side channel turned out to cause 99 a severe 2-3x performance regression in the typical use case 100 compared to 1.1.1s. The new fix uses existing constant time 101 code paths, and restores the previous performance level while 102 fully eliminating all existing timing side channels. 103 The fix was developed by Bernd Edlinger with testing support 104 by Hubert Kario. 105 [Bernd Edlinger] 106 107 *) Corrected documentation of X509_VERIFY_PARAM_add0_policy() to mention 108 that it does not enable policy checking. Thanks to 109 David Benjamin for discovering this issue. (CVE-2023-0466) 110 [Tomas Mraz] 111 112 *) Fixed an issue where invalid certificate policies in leaf certificates are 113 silently ignored by OpenSSL and other certificate policy checks are skipped 114 for that certificate. A malicious CA could use this to deliberately assert 115 invalid certificate policies in order to circumvent policy checking on the 116 certificate altogether. (CVE-2023-0465) 117 [Matt Caswell] 118 119 *) Limited the number of nodes created in a policy tree to mitigate 120 against CVE-2023-0464. The default limit is set to 1000 nodes, which 121 should be sufficient for most installations. If required, the limit 122 can be adjusted by setting the OPENSSL_POLICY_TREE_NODES_MAX build 123 time define to a desired maximum number of nodes or zero to allow 124 unlimited growth. (CVE-2023-0464) 125 [Paul Dale] 126 127 Changes between 1.1.1s and 1.1.1t [7 Feb 2023] 128 129 *) Fixed X.400 address type confusion in X.509 GeneralName. 130 131 There is a type confusion vulnerability relating to X.400 address processing 132 inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING 133 but subsequently interpreted by GENERAL_NAME_cmp as an ASN1_TYPE. This 134 vulnerability may allow an attacker who can provide a certificate chain and 135 CRL (neither of which need have a valid signature) to pass arbitrary 136 pointers to a memcmp call, creating a possible read primitive, subject to 137 some constraints. Refer to the advisory for more information. Thanks to 138 David Benjamin for discovering this issue. (CVE-2023-0286) 139 140 This issue has been fixed by changing the public header file definition of 141 GENERAL_NAME so that x400Address reflects the implementation. It was not 142 possible for any existing application to successfully use the existing 143 definition; however, if any application references the x400Address field 144 (e.g. in dead code), note that the type of this field has changed. There is 145 no ABI change. 146 [Hugo Landau] 147 148 *) Fixed Use-after-free following BIO_new_NDEF. 149 150 The public API function BIO_new_NDEF is a helper function used for 151 streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL 152 to support the SMIME, CMS and PKCS7 streaming capabilities, but may also 153 be called directly by end user applications. 154 155 The function receives a BIO from the caller, prepends a new BIO_f_asn1 156 filter BIO onto the front of it to form a BIO chain, and then returns 157 the new head of the BIO chain to the caller. Under certain conditions, 158 for example if a CMS recipient public key is invalid, the new filter BIO 159 is freed and the function returns a NULL result indicating a failure. 160 However, in this case, the BIO chain is not properly cleaned up and the 161 BIO passed by the caller still retains internal pointers to the previously 162 freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO 163 then a use-after-free will occur. This will most likely result in a crash. 164 (CVE-2023-0215) 165 [Viktor Dukhovni, Matt Caswell] 166 167 *) Fixed Double free after calling PEM_read_bio_ex. 168 169 The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and 170 decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload 171 data. If the function succeeds then the "name_out", "header" and "data" 172 arguments are populated with pointers to buffers containing the relevant 173 decoded data. The caller is responsible for freeing those buffers. It is 174 possible to construct a PEM file that results in 0 bytes of payload data. 175 In this case PEM_read_bio_ex() will return a failure code but will populate 176 the header argument with a pointer to a buffer that has already been freed. 177 If the caller also frees this buffer then a double free will occur. This 178 will most likely lead to a crash. 179 180 The functions PEM_read_bio() and PEM_read() are simple wrappers around 181 PEM_read_bio_ex() and therefore these functions are also directly affected. 182 183 These functions are also called indirectly by a number of other OpenSSL 184 functions including PEM_X509_INFO_read_bio_ex() and 185 SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL 186 internal uses of these functions are not vulnerable because the caller does 187 not free the header argument if PEM_read_bio_ex() returns a failure code. 188 (CVE-2022-4450) 189 [Kurt Roeckx, Matt Caswell] 190 191 *) Fixed Timing Oracle in RSA Decryption. 192 193 A timing based side channel exists in the OpenSSL RSA Decryption 194 implementation which could be sufficient to recover a plaintext across 195 a network in a Bleichenbacher style attack. To achieve a successful 196 decryption an attacker would have to be able to send a very large number 197 of trial messages for decryption. The vulnerability affects all RSA padding 198 modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. 199 (CVE-2022-4304) 200 [Dmitry Belyavsky, Hubert Kario] 201 202 Changes between 1.1.1r and 1.1.1s [1 Nov 2022] 203 204 *) Fixed a regression introduced in 1.1.1r version not refreshing the 205 certificate data to be signed before signing the certificate. 206 [Gibeom Gwon] 207 208 Changes between 1.1.1q and 1.1.1r [11 Oct 2022] 209 210 *) Fixed the linux-mips64 Configure target which was missing the 211 SIXTY_FOUR_BIT bn_ops flag. This was causing heap corruption on that 212 platform. 213 [Adam Joseph] 214 215 *) Fixed a strict aliasing problem in bn_nist. Clang-14 optimisation was 216 causing incorrect results in some cases as a result. 217 [Paul Dale] 218 219 *) Fixed SSL_pending() and SSL_has_pending() with DTLS which were failing to 220 report correct results in some cases 221 [Matt Caswell] 222 223 *) Fixed a regression introduced in 1.1.1o for re-signing certificates with 224 different key sizes 225 [Todd Short] 226 227 *) Added the loongarch64 target 228 [Shi Pujin] 229 230 *) Fixed a DRBG seed propagation thread safety issue 231 [Bernd Edlinger] 232 233 *) Fixed a memory leak in tls13_generate_secret 234 [Bernd Edlinger] 235 236 *) Fixed reported performance degradation on aarch64. Restored the 237 implementation prior to commit 2621751 ("aes/asm/aesv8-armx.pl: avoid 238 32-bit lane assignment in CTR mode") for 64bit targets only, since it is 239 reportedly 2-17% slower and the silicon errata only affects 32bit targets. 240 The new algorithm is still used for 32 bit targets. 241 [Bernd Edlinger] 242 243 *) Added a missing header for memcmp that caused compilation failure on some 244 platforms 245 [Gregor Jasny] 246 247 Changes between 1.1.1p and 1.1.1q [5 Jul 2022] 248 249 *) AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised 250 implementation would not encrypt the entirety of the data under some 251 circumstances. This could reveal sixteen bytes of data that was 252 preexisting in the memory that wasn't written. In the special case of 253 "in place" encryption, sixteen bytes of the plaintext would be revealed. 254 255 Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, 256 they are both unaffected. 257 (CVE-2022-2097) 258 [Alex Chernyakhovsky, David Benjamin, Alejandro Sedeño] 259 260 Changes between 1.1.1o and 1.1.1p [21 Jun 2022] 261 262 *) In addition to the c_rehash shell command injection identified in 263 CVE-2022-1292, further bugs where the c_rehash script does not 264 properly sanitise shell metacharacters to prevent command injection have been 265 fixed. 266 267 When the CVE-2022-1292 was fixed it was not discovered that there 268 are other places in the script where the file names of certificates 269 being hashed were possibly passed to a command executed through the shell. 270 271 This script is distributed by some operating systems in a manner where 272 it is automatically executed. On such operating systems, an attacker 273 could execute arbitrary commands with the privileges of the script. 274 275 Use of the c_rehash script is considered obsolete and should be replaced 276 by the OpenSSL rehash command line tool. 277 (CVE-2022-2068) 278 [Daniel Fiala, Tomáš Mráz] 279 280 *) When OpenSSL TLS client is connecting without any supported elliptic 281 curves and TLS-1.3 protocol is disabled the connection will no longer fail 282 if a ciphersuite that does not use a key exchange based on elliptic 283 curves can be negotiated. 284 [Tomáš Mráz] 285 286 Changes between 1.1.1n and 1.1.1o [3 May 2022] 287 288 *) Fixed a bug in the c_rehash script which was not properly sanitising shell 289 metacharacters to prevent command injection. This script is distributed 290 by some operating systems in a manner where it is automatically executed. 291 On such operating systems, an attacker could execute arbitrary commands 292 with the privileges of the script. 293 294 Use of the c_rehash script is considered obsolete and should be replaced 295 by the OpenSSL rehash command line tool. 296 (CVE-2022-1292) 297 [Tomáš Mráz] 298 299 Changes between 1.1.1m and 1.1.1n [15 Mar 2022] 300 301 *) Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever 302 for non-prime moduli. 303 304 Internally this function is used when parsing certificates that contain 305 elliptic curve public keys in compressed form or explicit elliptic curve 306 parameters with a base point encoded in compressed form. 307 308 It is possible to trigger the infinite loop by crafting a certificate that 309 has invalid explicit curve parameters. 310 311 Since certificate parsing happens prior to verification of the certificate 312 signature, any process that parses an externally supplied certificate may 313 thus be subject to a denial of service attack. The infinite loop can also 314 be reached when parsing crafted private keys as they can contain explicit 315 elliptic curve parameters. 316 317 Thus vulnerable situations include: 318 319 - TLS clients consuming server certificates 320 - TLS servers consuming client certificates 321 - Hosting providers taking certificates or private keys from customers 322 - Certificate authorities parsing certification requests from subscribers 323 - Anything else which parses ASN.1 elliptic curve parameters 324 325 Also any other applications that use the BN_mod_sqrt() where the attacker 326 can control the parameter values are vulnerable to this DoS issue. 327 (CVE-2022-0778) 328 [Tomáš Mráz] 329 330 *) Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489) 331 to the list of ciphersuites providing Perfect Forward Secrecy as 332 required by SECLEVEL >= 3. 333 334 [Dmitry Belyavskiy, Nicola Tuveri] 335 336 Changes between 1.1.1l and 1.1.1m [14 Dec 2021] 337 338 *) Avoid loading of a dynamic engine twice. 339 340 [Bernd Edlinger] 341 342 *) Fixed building on Debian with kfreebsd kernels 343 344 [Mattias Ellert] 345 346 *) Prioritise DANE TLSA issuer certs over peer certs 347 348 [Viktor Dukhovni] 349 350 *) Fixed random API for MacOS prior to 10.12 351 352 These MacOS versions don't support the CommonCrypto APIs 353 354 [Lenny Primak] 355 356 Changes between 1.1.1k and 1.1.1l [24 Aug 2021] 357 358 *) Fixed an SM2 Decryption Buffer Overflow. 359 360 In order to decrypt SM2 encrypted data an application is expected to call the 361 API function EVP_PKEY_decrypt(). Typically an application will call this 362 function twice. The first time, on entry, the "out" parameter can be NULL and, 363 on exit, the "outlen" parameter is populated with the buffer size required to 364 hold the decrypted plaintext. The application can then allocate a sufficiently 365 sized buffer and call EVP_PKEY_decrypt() again, but this time passing a non-NULL 366 value for the "out" parameter. 367 368 A bug in the implementation of the SM2 decryption code means that the 369 calculation of the buffer size required to hold the plaintext returned by the 370 first call to EVP_PKEY_decrypt() can be smaller than the actual size required by 371 the second call. This can lead to a buffer overflow when EVP_PKEY_decrypt() is 372 called by the application a second time with a buffer that is too small. 373 374 A malicious attacker who is able present SM2 content for decryption to an 375 application could cause attacker chosen data to overflow the buffer by up to a 376 maximum of 62 bytes altering the contents of other data held after the 377 buffer, possibly changing application behaviour or causing the application to 378 crash. The location of the buffer is application dependent but is typically 379 heap allocated. 380 (CVE-2021-3711) 381 [Matt Caswell] 382 383 *) Fixed various read buffer overruns processing ASN.1 strings 384 385 ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING 386 structure which contains a buffer holding the string data and a field holding 387 the buffer length. This contrasts with normal C strings which are repesented as 388 a buffer for the string data which is terminated with a NUL (0) byte. 389 390 Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL's 391 own "d2i" functions (and other similar parsing functions) as well as any string 392 whose value has been set with the ASN1_STRING_set() function will additionally 393 NUL terminate the byte array in the ASN1_STRING structure. 394 395 However, it is possible for applications to directly construct valid ASN1_STRING 396 structures which do not NUL terminate the byte array by directly setting the 397 "data" and "length" fields in the ASN1_STRING array. This can also happen by 398 using the ASN1_STRING_set0() function. 399 400 Numerous OpenSSL functions that print ASN.1 data have been found to assume that 401 the ASN1_STRING byte array will be NUL terminated, even though this is not 402 guaranteed for strings that have been directly constructed. Where an application 403 requests an ASN.1 structure to be printed, and where that ASN.1 structure 404 contains ASN1_STRINGs that have been directly constructed by the application 405 without NUL terminating the "data" field, then a read buffer overrun can occur. 406 407 The same thing can also occur during name constraints processing of certificates 408 (for example if a certificate has been directly constructed by the application 409 instead of loading it via the OpenSSL parsing functions, and the certificate 410 contains non NUL terminated ASN1_STRING structures). It can also occur in the 411 X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. 412 413 If a malicious actor can cause an application to directly construct an 414 ASN1_STRING and then process it through one of the affected OpenSSL functions 415 then this issue could be hit. This might result in a crash (causing a Denial of 416 Service attack). It could also result in the disclosure of private memory 417 contents (such as private keys, or sensitive plaintext). 418 (CVE-2021-3712) 419 [Matt Caswell] 420 421 Changes between 1.1.1j and 1.1.1k [25 Mar 2021] 422 423 *) Fixed a problem with verifying a certificate chain when using the 424 X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks 425 of the certificates present in a certificate chain. It is not set by 426 default. 427 428 Starting from OpenSSL version 1.1.1h a check to disallow certificates in 429 the chain that have explicitly encoded elliptic curve parameters was added 430 as an additional strict check. 431 432 An error in the implementation of this check meant that the result of a 433 previous check to confirm that certificates in the chain are valid CA 434 certificates was overwritten. This effectively bypasses the check 435 that non-CA certificates must not be able to issue other certificates. 436 437 If a "purpose" has been configured then there is a subsequent opportunity 438 for checks that the certificate is a valid CA. All of the named "purpose" 439 values implemented in libcrypto perform this check. Therefore, where 440 a purpose is set the certificate chain will still be rejected even when the 441 strict flag has been used. A purpose is set by default in libssl client and 442 server certificate verification routines, but it can be overridden or 443 removed by an application. 444 445 In order to be affected, an application must explicitly set the 446 X509_V_FLAG_X509_STRICT verification flag and either not set a purpose 447 for the certificate verification or, in the case of TLS client or server 448 applications, override the default purpose. 449 (CVE-2021-3450) 450 [Tomáš Mráz] 451 452 *) Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously 453 crafted renegotiation ClientHello message from a client. If a TLSv1.2 454 renegotiation ClientHello omits the signature_algorithms extension (where 455 it was present in the initial ClientHello), but includes a 456 signature_algorithms_cert extension then a NULL pointer dereference will 457 result, leading to a crash and a denial of service attack. 458 459 A server is only vulnerable if it has TLSv1.2 and renegotiation enabled 460 (which is the default configuration). OpenSSL TLS clients are not impacted 461 by this issue. 462 (CVE-2021-3449) 463 [Peter Kästle and Samuel Sapalski] 464 465 Changes between 1.1.1i and 1.1.1j [16 Feb 2021] 466 467 *) Fixed the X509_issuer_and_serial_hash() function. It attempts to 468 create a unique hash value based on the issuer and serial number data 469 contained within an X509 certificate. However it was failing to correctly 470 handle any errors that may occur while parsing the issuer field (which might 471 occur if the issuer field is maliciously constructed). This may subsequently 472 result in a NULL pointer deref and a crash leading to a potential denial of 473 service attack. 474 (CVE-2021-23841) 475 [Matt Caswell] 476 477 *) Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING 478 padding mode to correctly check for rollback attacks. This is considered a 479 bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is 480 CVE-2021-23839. 481 [Matt Caswell] 482 483 *) Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate 484 functions. Previously they could overflow the output length argument in some 485 cases where the input length is close to the maximum permissable length for 486 an integer on the platform. In such cases the return value from the function 487 call would be 1 (indicating success), but the output length value would be 488 negative. This could cause applications to behave incorrectly or crash. 489 (CVE-2021-23840) 490 [Matt Caswell] 491 492 *) Fixed SRP_Calc_client_key so that it runs in constant time. The previous 493 implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This 494 could be exploited in a side channel attack to recover the password. Since 495 the attack is local host only this is outside of the current OpenSSL 496 threat model and therefore no CVE is assigned. 497 498 Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this 499 issue. 500 [Matt Caswell] 501 502 Changes between 1.1.1h and 1.1.1i [8 Dec 2020] 503 504 *) Fixed NULL pointer deref in the GENERAL_NAME_cmp function 505 This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME. 506 If an attacker can control both items being compared then this could lead 507 to a possible denial of service attack. OpenSSL itself uses the 508 GENERAL_NAME_cmp function for two purposes: 509 1) Comparing CRL distribution point names between an available CRL and a 510 CRL distribution point embedded in an X509 certificate 511 2) When verifying that a timestamp response token signer matches the 512 timestamp authority name (exposed via the API functions 513 TS_RESP_verify_response and TS_RESP_verify_token) 514 (CVE-2020-1971) 515 [Matt Caswell] 516 517 *) Add support for Apple Silicon M1 Macs with the darwin64-arm64-cc target. 518 [Stuart Carnie] 519 520 *) The security callback, which can be customised by application code, supports 521 the security operation SSL_SECOP_TMP_DH. This is defined to take an EVP_PKEY 522 in the "other" parameter. In most places this is what is passed. All these 523 places occur server side. However there was one client side call of this 524 security operation and it passed a DH object instead. This is incorrect 525 according to the definition of SSL_SECOP_TMP_DH, and is inconsistent with all 526 of the other locations. Therefore this client side call has been changed to 527 pass an EVP_PKEY instead. 528 [Matt Caswell] 529 530 *) In 1.1.1h, an expired trusted (root) certificate was not anymore rejected 531 when validating a certificate path. This check is restored in 1.1.1i. 532 [David von Oheimb] 533 534 Changes between 1.1.1g and 1.1.1h [22 Sep 2020] 535 536 *) Certificates with explicit curve parameters are now disallowed in 537 verification chains if the X509_V_FLAG_X509_STRICT flag is used. 538 [Tomas Mraz] 539 540 *) The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 541 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 542 conversely, silently ignore DTLS protocol version bounds when configuring 543 TLS-based contexts. The commands can be repeated to set bounds of both 544 types. The same applies with the corresponding "min_protocol" and 545 "max_protocol" command-line switches, in case some application uses both TLS 546 and DTLS. 547 548 SSL_CTX instances that are created for a fixed protocol version (e.g. 549 TLSv1_server_method()) also silently ignore version bounds. Previously 550 attempts to apply bounds to these protocol versions would result in an 551 error. Now only the "version-flexible" SSL_CTX instances are subject to 552 limits in configuration files in command-line options. 553 [Viktor Dukhovni] 554 555 *) Handshake now fails if Extended Master Secret extension is dropped 556 on renegotiation. 557 [Tomas Mraz] 558 559 *) Accidentally, an expired trusted (root) certificate is not anymore rejected 560 when validating a certificate path. 561 [David von Oheimb] 562 563 *) The Oracle Developer Studio compiler will start reporting deprecated APIs 564 565 Changes between 1.1.1f and 1.1.1g [21 Apr 2020] 566 567 *) Fixed segmentation fault in SSL_check_chain() 568 Server or client applications that call the SSL_check_chain() function 569 during or after a TLS 1.3 handshake may crash due to a NULL pointer 570 dereference as a result of incorrect handling of the 571 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid 572 or unrecognised signature algorithm is received from the peer. This could 573 be exploited by a malicious peer in a Denial of Service attack. 574 (CVE-2020-1967) 575 [Benjamin Kaduk] 576 577 *) Added AES consttime code for no-asm configurations 578 an optional constant time support for AES was added 579 when building openssl for no-asm. 580 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME 581 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME 582 At this time this feature is by default disabled. 583 It will be enabled by default in 3.0. 584 [Bernd Edlinger] 585 586 Changes between 1.1.1e and 1.1.1f [31 Mar 2020] 587 588 *) Revert the change of EOF detection while reading in libssl to avoid 589 regressions in applications depending on the current way of reporting 590 the EOF. As the existing method is not fully accurate the change to 591 reporting the EOF via SSL_ERROR_SSL is kept on the current development 592 branch and will be present in the 3.0 release. 593 [Tomas Mraz] 594 595 *) Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1 596 when primes for RSA keys are computed. 597 Since we previously always generated primes == 2 (mod 3) for RSA keys, 598 the 2-prime and 3-prime RSA modules were easy to distinguish, since 599 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting 600 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 601 This avoids possible fingerprinting of newly generated RSA modules. 602 [Bernd Edlinger] 603 604 Changes between 1.1.1d and 1.1.1e [17 Mar 2020] 605 *) Properly detect EOF while reading in libssl. Previously if we hit an EOF 606 while reading in libssl then we would report an error back to the 607 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add 608 an error to the stack (which means we instead return SSL_ERROR_SSL) and 609 therefore give a hint as to what went wrong. 610 [Matt Caswell] 611 612 *) Check that ed25519 and ed448 are allowed by the security level. Previously 613 signature algorithms not using an MD were not being checked that they were 614 allowed by the security level. 615 [Kurt Roeckx] 616 617 *) Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername() 618 was not quite right. The behaviour was not consistent between resumption 619 and normal handshakes, and also not quite consistent with historical 620 behaviour. The behaviour in various scenarios has been clarified and 621 it has been updated to make it match historical behaviour as closely as 622 possible. 623 [Matt Caswell] 624 625 *) [VMS only] The header files that the VMS compilers include automatically, 626 __DECC_INCLUDE_PROLOGUE.H and __DECC_INCLUDE_EPILOGUE.H, use pragmas that 627 the C++ compiler doesn't understand. This is a shortcoming in the 628 compiler, but can be worked around with __cplusplus guards. 629 630 C++ applications that use OpenSSL libraries must be compiled using the 631 qualifier '/NAMES=(AS_IS,SHORTENED)' to be able to use all the OpenSSL 632 functions. Otherwise, only functions with symbols of less than 31 633 characters can be used, as the linker will not be able to successfully 634 resolve symbols with longer names. 635 [Richard Levitte] 636 637 *) Corrected the documentation of the return values from the EVP_DigestSign* 638 set of functions. The documentation mentioned negative values for some 639 errors, but this was never the case, so the mention of negative values 640 was removed. 641 642 Code that followed the documentation and thereby check with something 643 like 'EVP_DigestSignInit(...) <= 0' will continue to work undisturbed. 644 [Richard Levitte] 645 646 *) Fixed an an overflow bug in the x64_64 Montgomery squaring procedure 647 used in exponentiation with 512-bit moduli. No EC algorithms are 648 affected. Analysis suggests that attacks against 2-prime RSA1024, 649 3-prime RSA1536, and DSA1024 as a result of this defect would be very 650 difficult to perform and are not believed likely. Attacks against DH512 651 are considered just feasible. However, for an attack the target would 652 have to re-use the DH512 private key, which is not recommended anyway. 653 Also applications directly using the low level API BN_mod_exp may be 654 affected if they use BN_FLG_CONSTTIME. 655 (CVE-2019-1551) 656 [Andy Polyakov] 657 658 *) Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 659 The presence of this system service is determined at run-time. 660 [Richard Levitte] 661 662 *) Added newline escaping functionality to a filename when using openssl dgst. 663 This output format is to replicate the output format found in the '*sum' 664 checksum programs. This aims to preserve backward compatibility. 665 [Matt Eaton, Richard Levitte, and Paul Dale] 666 667 *) Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 668 the first value. 669 [Jon Spillett] 670 671 Changes between 1.1.1c and 1.1.1d [10 Sep 2019] 672 673 *) Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random 674 number generator (RNG). This was intended to include protection in the 675 event of a fork() system call in order to ensure that the parent and child 676 processes did not share the same RNG state. However this protection was not 677 being used in the default case. 678 679 A partial mitigation for this issue is that the output from a high 680 precision timer is mixed into the RNG state so the likelihood of a parent 681 and child process sharing state is significantly reduced. 682 683 If an application already calls OPENSSL_init_crypto() explicitly using 684 OPENSSL_INIT_ATFORK then this problem does not occur at all. 685 (CVE-2019-1549) 686 [Matthias St. Pierre] 687 688 *) For built-in EC curves, ensure an EC_GROUP built from the curve name is 689 used even when parsing explicit parameters, when loading a serialized key 690 or calling `EC_GROUP_new_from_ecpkparameters()`/ 691 `EC_GROUP_new_from_ecparameters()`. 692 This prevents bypass of security hardening and performance gains, 693 especially for curves with specialized EC_METHODs. 694 By default, if a key encoded with explicit parameters is loaded and later 695 serialized, the output is still encoded with explicit parameters, even if 696 internally a "named" EC_GROUP is used for computation. 697 [Nicola Tuveri] 698 699 *) Compute ECC cofactors if not provided during EC_GROUP construction. Before 700 this change, EC_GROUP_set_generator would accept order and/or cofactor as 701 NULL. After this change, only the cofactor parameter can be NULL. It also 702 does some minimal sanity checks on the passed order. 703 (CVE-2019-1547) 704 [Billy Bob Brumley] 705 706 *) Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 707 An attack is simple, if the first CMS_recipientInfo is valid but the 708 second CMS_recipientInfo is chosen ciphertext. If the second 709 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 710 encryption key will be replaced by garbage, and the message cannot be 711 decoded, but if the RSA decryption fails, the correct encryption key is 712 used and the recipient will not notice the attack. 713 As a work around for this potential attack the length of the decrypted 714 key must be equal to the cipher default key length, in case the 715 certifiate is not given and all recipientInfo are tried out. 716 The old behaviour can be re-enabled in the CMS code by setting the 717 CMS_DEBUG_DECRYPT flag. 718 (CVE-2019-1563) 719 [Bernd Edlinger] 720 721 *) Early start up entropy quality from the DEVRANDOM seed source has been 722 improved for older Linux systems. The RAND subsystem will wait for 723 /dev/random to be producing output before seeding from /dev/urandom. 724 The seeded state is stored for future library initialisations using 725 a system global shared memory segment. The shared memory identifier 726 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 727 the desired value. The default identifier is 114. 728 [Paul Dale] 729 730 *) Correct the extended master secret constant on EBCDIC systems. Without this 731 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 732 negotiate EMS will fail. Unfortunately this also means that TLS connections 733 between EBCDIC systems with this fix, and EBCDIC systems without this 734 fix will fail if they negotiate EMS. 735 [Matt Caswell] 736 737 *) Use Windows installation paths in the mingw builds 738 739 Mingw isn't a POSIX environment per se, which means that Windows 740 paths should be used for installation. 741 (CVE-2019-1552) 742 [Richard Levitte] 743 744 *) Changed DH_check to accept parameters with order q and 2q subgroups. 745 With order 2q subgroups the bit 0 of the private key is not secret 746 but DH_generate_key works around that by clearing bit 0 of the 747 private key for those. This avoids leaking bit 0 of the private key. 748 [Bernd Edlinger] 749 750 *) Significantly reduce secure memory usage by the randomness pools. 751 [Paul Dale] 752 753 *) Revert the DEVRANDOM_WAIT feature for Linux systems 754 755 The DEVRANDOM_WAIT feature added a select() call to wait for the 756 /dev/random device to become readable before reading from the 757 /dev/urandom device. 758 759 It turned out that this change had negative side effects on 760 performance which were not acceptable. After some discussion it 761 was decided to revert this feature and leave it up to the OS 762 resp. the platform maintainer to ensure a proper initialization 763 during early boot time. 764 [Matthias St. Pierre] 765 766 Changes between 1.1.1b and 1.1.1c [28 May 2019] 767 768 *) Add build tests for C++. These are generated files that only do one 769 thing, to include one public OpenSSL head file each. This tests that 770 the public header files can be usefully included in a C++ application. 771 772 This test isn't enabled by default. It can be enabled with the option 773 'enable-buildtest-c++'. 774 [Richard Levitte] 775 776 *) Enable SHA3 pre-hashing for ECDSA and DSA. 777 [Patrick Steuer] 778 779 *) Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 780 This changes the size when using the genpkey app when no size is given. It 781 fixes an omission in earlier changes that changed all RSA, DSA and DH 782 generation apps to use 2048 bits by default. 783 [Kurt Roeckx] 784 785 *) Reorganize the manual pages to consistently have RETURN VALUES, 786 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust 787 util/fix-doc-nits accordingly. 788 [Paul Yang, Joshua Lock] 789 790 *) Add the missing accessor EVP_PKEY_get0_engine() 791 [Matt Caswell] 792 793 *) Have apps like 's_client' and 's_server' output the signature scheme 794 along with other cipher suite parameters when debugging. 795 [Lorinczy Zsigmond] 796 797 *) Make OPENSSL_config() error agnostic again. 798 [Richard Levitte] 799 800 *) Do the error handling in RSA decryption constant time. 801 [Bernd Edlinger] 802 803 *) Prevent over long nonces in ChaCha20-Poly1305. 804 805 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 806 for every encryption operation. RFC 7539 specifies that the nonce value 807 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 808 and front pads the nonce with 0 bytes if it is less than 12 809 bytes. However it also incorrectly allows a nonce to be set of up to 16 810 bytes. In this case only the last 12 bytes are significant and any 811 additional leading bytes are ignored. 812 813 It is a requirement of using this cipher that nonce values are 814 unique. Messages encrypted using a reused nonce value are susceptible to 815 serious confidentiality and integrity attacks. If an application changes 816 the default nonce length to be longer than 12 bytes and then makes a 817 change to the leading bytes of the nonce expecting the new value to be a 818 new unique nonce then such an application could inadvertently encrypt 819 messages with a reused nonce. 820 821 Additionally the ignored bytes in a long nonce are not covered by the 822 integrity guarantee of this cipher. Any application that relies on the 823 integrity of these ignored leading bytes of a long nonce may be further 824 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 825 is safe because no such use sets such a long nonce value. However user 826 applications that use this cipher directly and set a non-default nonce 827 length to be longer than 12 bytes may be vulnerable. 828 829 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 830 Greef of Ronomon. 831 (CVE-2019-1543) 832 [Matt Caswell] 833 834 *) Add DEVRANDOM_WAIT feature for Linux systems 835 836 On older Linux systems where the getrandom() system call is not available, 837 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG. 838 Contrary to getrandom(), the /dev/urandom device will not block during 839 early boot when the kernel CSPRNG has not been seeded yet. 840 841 To mitigate this known weakness, use select() to wait for /dev/random to 842 become readable before reading from /dev/urandom. 843 844 *) Ensure that SM2 only uses SM3 as digest algorithm 845 [Paul Yang] 846 847 Changes between 1.1.1a and 1.1.1b [26 Feb 2019] 848 849 *) Added SCA hardening for modular field inversion in EC_GROUP through 850 a new dedicated field_inv() pointer in EC_METHOD. 851 This also addresses a leakage affecting conversions from projective 852 to affine coordinates. 853 [Billy Bob Brumley, Nicola Tuveri] 854 855 *) Change the info callback signals for the start and end of a post-handshake 856 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START 857 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get 858 confused by this and assume that a TLSv1.2 renegotiation has started. This 859 can break KeyUpdate handling. Instead we no longer signal the start and end 860 of a post handshake message exchange (although the messages themselves are 861 still signalled). This could break some applications that were expecting 862 the old signals. However without this KeyUpdate is not usable for many 863 applications. 864 [Matt Caswell] 865 866 *) Fix a bug in the computation of the endpoint-pair shared secret used 867 by DTLS over SCTP. This breaks interoperability with older versions 868 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime 869 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling 870 interoperability with such broken implementations. However, enabling 871 this switch breaks interoperability with correct implementations. 872 873 *) Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 874 re-used X509_PUBKEY object if the second PUBKEY is malformed. 875 [Bernd Edlinger] 876 877 *) Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 878 [Richard Levitte] 879 880 *) Remove the 'dist' target and add a tarball building script. The 881 'dist' target has fallen out of use, and it shouldn't be 882 necessary to configure just to create a source distribution. 883 [Richard Levitte] 884 885 *) Added support for Linux Kernel TLS data-path. The Linux Kernel data-path 886 improves application performance by removing data copies and providing 887 applications with zero-copy system calls such as sendfile and splice. 888 [Boris Pismenny] 889 890 Changes between 1.1.1 and 1.1.1a [20 Nov 2018] 891 892 *) Timing vulnerability in DSA signature generation 893 894 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 895 timing side channel attack. An attacker could use variations in the signing 896 algorithm to recover the private key. 897 898 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 899 (CVE-2018-0734) 900 [Paul Dale] 901 902 *) Timing vulnerability in ECDSA signature generation 903 904 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 905 timing side channel attack. An attacker could use variations in the signing 906 algorithm to recover the private key. 907 908 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 909 (CVE-2018-0735) 910 [Paul Dale] 911 912 *) Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for 913 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names 914 are retained for backwards compatibility. 915 [Antoine Salon] 916 917 *) Fixed the issue that RAND_add()/RAND_seed() silently discards random input 918 if its length exceeds 4096 bytes. The limit has been raised to a buffer size 919 of two gigabytes and the error handling improved. 920 921 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been 922 categorized as a normal bug, not a security issue, because the DRBG reseeds 923 automatically and is fully functional even without additional randomness 924 provided by the application. 925 926 Changes between 1.1.0i and 1.1.1 [11 Sep 2018] 927 928 *) Add a new ClientHello callback. Provides a callback interface that gives 929 the application the ability to adjust the nascent SSL object at the 930 earliest stage of ClientHello processing, immediately after extensions have 931 been collected but before they have been processed. In particular, this 932 callback can adjust the supported TLS versions in response to the contents 933 of the ClientHello 934 [Benjamin Kaduk] 935 936 *) Add SM2 base algorithm support. 937 [Jack Lloyd] 938 939 *) s390x assembly pack: add (improved) hardware-support for the following 940 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb, 941 aes-cfb/cfb8, aes-ecb. 942 [Patrick Steuer] 943 944 *) Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 945 parameter is no longer accepted, as it leads to a corrupt table. NULL 946 pem_str is reserved for alias entries only. 947 [Richard Levitte] 948 949 *) Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 950 step for prime curves. The new implementation is based on formulae from 951 differential addition-and-doubling in homogeneous projective coordinates 952 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant 953 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves 954 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified 955 to work in projective coordinates. 956 [Billy Bob Brumley, Nicola Tuveri] 957 958 *) Change generating and checking of primes so that the error rate of not 959 being prime depends on the intended use based on the size of the input. 960 For larger primes this will result in more rounds of Miller-Rabin. 961 The maximal error rate for primes with more than 1080 bits is lowered 962 to 2^-128. 963 [Kurt Roeckx, Annie Yousar] 964 965 *) Increase the number of Miller-Rabin rounds for DSA key generating to 64. 966 [Kurt Roeckx] 967 968 *) The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when 969 moving between systems, and to avoid confusion when a Windows build is 970 done with mingw vs with MSVC. For POSIX installs, there's still a 971 symlink or copy named 'tsget' to avoid that confusion as well. 972 [Richard Levitte] 973 974 *) Revert blinding in ECDSA sign and instead make problematic addition 975 length-invariant. Switch even to fixed-length Montgomery multiplication. 976 [Andy Polyakov] 977 978 *) Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 979 step for binary curves. The new implementation is based on formulae from 980 differential addition-and-doubling in mixed Lopez-Dahab projective 981 coordinates, modified to independently blind the operands. 982 [Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri] 983 984 *) Add a scaffold to optionally enhance the Montgomery ladder implementation 985 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing 986 EC_METHODs to implement their own specialized "ladder step", to take 987 advantage of more favorable coordinate systems or more efficient 988 differential addition-and-doubling algorithms. 989 [Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri] 990 991 *) Modified the random device based seed sources to keep the relevant 992 file descriptors open rather than reopening them on each access. 993 This allows such sources to operate in a chroot() jail without 994 the associated device nodes being available. This behaviour can be 995 controlled using RAND_keep_random_devices_open(). 996 [Paul Dale] 997 998 *) Numerous side-channel attack mitigations have been applied. This may have 999 performance impacts for some algorithms for the benefit of improved 1000 security. Specific changes are noted in this change log by their respective 1001 authors. 1002 [Matt Caswell] 1003 1004 *) AIX shared library support overhaul. Switch to AIX "natural" way of 1005 handling shared libraries, which means collecting shared objects of 1006 different versions and bitnesses in one common archive. This allows to 1007 mitigate conflict between 1.0 and 1.1 side-by-side installations. It 1008 doesn't affect the way 3rd party applications are linked, only how 1009 multi-version installation is managed. 1010 [Andy Polyakov] 1011 1012 *) Make ec_group_do_inverse_ord() more robust and available to other 1013 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA 1014 mitigations are applied to the fallback BN_mod_inverse(). 1015 When using this function rather than BN_mod_inverse() directly, new 1016 EC cryptosystem implementations are then safer-by-default. 1017 [Billy Bob Brumley] 1018 1019 *) Add coordinate blinding for EC_POINT and implement projective 1020 coordinate blinding for generic prime curves as a countermeasure to 1021 chosen point SCA attacks. 1022 [Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley] 1023 1024 *) Add blinding to ECDSA and DSA signatures to protect against side channel 1025 attacks discovered by Keegan Ryan (NCC Group). 1026 [Matt Caswell] 1027 1028 *) Enforce checking in the pkeyutl command line app to ensure that the input 1029 length does not exceed the maximum supported digest length when performing 1030 a sign, verify or verifyrecover operation. 1031 [Matt Caswell] 1032 1033 *) SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking 1034 I/O in combination with something like select() or poll() will hang. This 1035 can be turned off again using SSL_CTX_clear_mode(). 1036 Many applications do not properly handle non-application data records, and 1037 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works 1038 around the problems in those applications, but can also break some. 1039 It's recommended to read the manpages about SSL_read(), SSL_write(), 1040 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and 1041 SSL_CTX_set_read_ahead() again. 1042 [Kurt Roeckx] 1043 1044 *) When unlocking a pass phrase protected PEM file or PKCS#8 container, we 1045 now allow empty (zero character) pass phrases. 1046 [Richard Levitte] 1047 1048 *) Apply blinding to binary field modular inversion and remove patent 1049 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation. 1050 [Billy Bob Brumley] 1051 1052 *) Deprecate ec2_mult.c and unify scalar multiplication code paths for 1053 binary and prime elliptic curves. 1054 [Billy Bob Brumley] 1055 1056 *) Remove ECDSA nonce padding: EC_POINT_mul is now responsible for 1057 constant time fixed point multiplication. 1058 [Billy Bob Brumley] 1059 1060 *) Revise elliptic curve scalar multiplication with timing attack 1061 defenses: ec_wNAF_mul redirects to a constant time implementation 1062 when computing fixed point and variable point multiplication (which 1063 in OpenSSL are mostly used with secret scalars in keygen, sign, 1064 ECDH derive operations). 1065 [Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García, 1066 Sohaib ul Hassan] 1067 1068 *) Updated CONTRIBUTING 1069 [Rich Salz] 1070 1071 *) Updated DRBG / RAND to request nonce and additional low entropy 1072 randomness from the system. 1073 [Matthias St. Pierre] 1074 1075 *) Updated 'openssl rehash' to use OpenSSL consistent default. 1076 [Richard Levitte] 1077 1078 *) Moved the load of the ssl_conf module to libcrypto, which helps 1079 loading engines that libssl uses before libssl is initialised. 1080 [Matt Caswell] 1081 1082 *) Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA 1083 [Matt Caswell] 1084 1085 *) Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases. 1086 [Ingo Schwarze, Rich Salz] 1087 1088 *) Added output of accepting IP address and port for 'openssl s_server' 1089 [Richard Levitte] 1090 1091 *) Added a new API for TLSv1.3 ciphersuites: 1092 SSL_CTX_set_ciphersuites() 1093 SSL_set_ciphersuites() 1094 [Matt Caswell] 1095 1096 *) Memory allocation failures consistently add an error to the error 1097 stack. 1098 [Rich Salz] 1099 1100 *) Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values 1101 in libcrypto when run as setuid/setgid. 1102 [Bernd Edlinger] 1103 1104 *) Load any config file by default when libssl is used. 1105 [Matt Caswell] 1106 1107 *) Added new public header file <openssl/rand_drbg.h> and documentation 1108 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview. 1109 [Matthias St. Pierre] 1110 1111 *) QNX support removed (cannot find contributors to get their approval 1112 for the license change). 1113 [Rich Salz] 1114 1115 *) TLSv1.3 replay protection for early data has been implemented. See the 1116 SSL_read_early_data() man page for further details. 1117 [Matt Caswell] 1118 1119 *) Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite 1120 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and 1121 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3. 1122 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration 1123 would otherwise inadvertently disable all TLSv1.3 ciphersuites the 1124 configuration has been separated out. See the ciphers man page or the 1125 SSL_CTX_set_ciphersuites() man page for more information. 1126 [Matt Caswell] 1127 1128 *) On POSIX (BSD, Linux, ...) systems the ocsp(1) command running 1129 in responder mode now supports the new "-multi" option, which 1130 spawns the specified number of child processes to handle OCSP 1131 requests. The "-timeout" option now also limits the OCSP 1132 responder's patience to wait to receive the full client request 1133 on a newly accepted connection. Child processes are respawned 1134 as needed, and the CA index file is automatically reloaded 1135 when changed. This makes it possible to run the "ocsp" responder 1136 as a long-running service, making the OpenSSL CA somewhat more 1137 feature-complete. In this mode, most diagnostic messages logged 1138 after entering the event loop are logged via syslog(3) rather than 1139 written to stderr. 1140 [Viktor Dukhovni] 1141 1142 *) Added support for X448 and Ed448. Heavily based on original work by 1143 Mike Hamburg. 1144 [Matt Caswell] 1145 1146 *) Extend OSSL_STORE with capabilities to search and to narrow the set of 1147 objects loaded. This adds the functions OSSL_STORE_expect() and 1148 OSSL_STORE_find() as well as needed tools to construct searches and 1149 get the search data out of them. 1150 [Richard Levitte] 1151 1152 *) Support for TLSv1.3 added. Note that users upgrading from an earlier 1153 version of OpenSSL should review their configuration settings to ensure 1154 that they are still appropriate for TLSv1.3. For further information see: 1155 https://wiki.openssl.org/index.php/TLS1.3 1156 [Matt Caswell] 1157 1158 *) Grand redesign of the OpenSSL random generator 1159 1160 The default RAND method now utilizes an AES-CTR DRBG according to 1161 NIST standard SP 800-90Ar1. The new random generator is essentially 1162 a port of the default random generator from the OpenSSL FIPS 2.0 1163 object module. It is a hybrid deterministic random bit generator 1164 using an AES-CTR bit stream and which seeds and reseeds itself 1165 automatically using trusted system entropy sources. 1166 1167 Some of its new features are: 1168 o Support for multiple DRBG instances with seed chaining. 1169 o The default RAND method makes use of a DRBG. 1170 o There is a public and private DRBG instance. 1171 o The DRBG instances are fork-safe. 1172 o Keep all global DRBG instances on the secure heap if it is enabled. 1173 o The public and private DRBG instance are per thread for lock free 1174 operation 1175 [Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre] 1176 1177 *) Changed Configure so it only says what it does and doesn't dump 1178 so much data. Instead, ./configdata.pm should be used as a script 1179 to display all sorts of configuration data. 1180 [Richard Levitte] 1181 1182 *) Added processing of "make variables" to Configure. 1183 [Richard Levitte] 1184 1185 *) Added SHA512/224 and SHA512/256 algorithm support. 1186 [Paul Dale] 1187 1188 *) The last traces of Netware support, first removed in 1.1.0, have 1189 now been removed. 1190 [Rich Salz] 1191 1192 *) Get rid of Makefile.shared, and in the process, make the processing 1193 of certain files (rc.obj, or the .def/.map/.opt files produced from 1194 the ordinal files) more visible and hopefully easier to trace and 1195 debug (or make silent). 1196 [Richard Levitte] 1197 1198 *) Make it possible to have environment variable assignments as 1199 arguments to config / Configure. 1200 [Richard Levitte] 1201 1202 *) Add multi-prime RSA (RFC 8017) support. 1203 [Paul Yang] 1204 1205 *) Add SM3 implemented according to GB/T 32905-2016 1206 [ Jack Lloyd <jack.lloyd@ribose.com>, 1207 Ronald Tse <ronald.tse@ribose.com>, 1208 Erick Borsboom <erick.borsboom@ribose.com> ] 1209 1210 *) Add 'Maximum Fragment Length' TLS extension negotiation and support 1211 as documented in RFC6066. 1212 Based on a patch from Tomasz Moń 1213 [Filipe Raimundo da Silva] 1214 1215 *) Add SM4 implemented according to GB/T 32907-2016. 1216 [ Jack Lloyd <jack.lloyd@ribose.com>, 1217 Ronald Tse <ronald.tse@ribose.com>, 1218 Erick Borsboom <erick.borsboom@ribose.com> ] 1219 1220 *) Reimplement -newreq-nodes and ERR_error_string_n; the 1221 original author does not agree with the license change. 1222 [Rich Salz] 1223 1224 *) Add ARIA AEAD TLS support. 1225 [Jon Spillett] 1226 1227 *) Some macro definitions to support VS6 have been removed. Visual 1228 Studio 6 has not worked since 1.1.0 1229 [Rich Salz] 1230 1231 *) Add ERR_clear_last_mark(), to allow callers to clear the last mark 1232 without clearing the errors. 1233 [Richard Levitte] 1234 1235 *) Add "atfork" functions. If building on a system that without 1236 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application 1237 requirements. The RAND facility now uses/requires this. 1238 [Rich Salz] 1239 1240 *) Add SHA3. 1241 [Andy Polyakov] 1242 1243 *) The UI API becomes a permanent and integral part of libcrypto, i.e. 1244 not possible to disable entirely. However, it's still possible to 1245 disable the console reading UI method, UI_OpenSSL() (use UI_null() 1246 as a fallback). 1247 1248 To disable, configure with 'no-ui-console'. 'no-ui' is still 1249 possible to use as an alias. Check at compile time with the 1250 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still 1251 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE. 1252 [Richard Levitte] 1253 1254 *) Add a STORE module, which implements a uniform and URI based reader of 1255 stores that can contain keys, certificates, CRLs and numerous other 1256 objects. The main API is loosely based on a few stdio functions, 1257 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof, 1258 OSSL_STORE_error and OSSL_STORE_close. 1259 The implementation uses backends called "loaders" to implement arbitrary 1260 URI schemes. There is one built in "loader" for the 'file' scheme. 1261 [Richard Levitte] 1262 1263 *) Add devcrypto engine. This has been implemented against cryptodev-linux, 1264 then adjusted to work on FreeBSD 8.4 as well. 1265 Enable by configuring with 'enable-devcryptoeng'. This is done by default 1266 on BSD implementations, as cryptodev.h is assumed to exist on all of them. 1267 [Richard Levitte] 1268 1269 *) Module names can prefixed with OSSL_ or OPENSSL_. This affects 1270 util/mkerr.pl, which is adapted to allow those prefixes, leading to 1271 error code calls like this: 1272 1273 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER); 1274 1275 With this change, we claim the namespaces OSSL and OPENSSL in a manner 1276 that can be encoded in C. For the foreseeable future, this will only 1277 affect new modules. 1278 [Richard Levitte and Tim Hudson] 1279 1280 *) Removed BSD cryptodev engine. 1281 [Rich Salz] 1282 1283 *) Add a build target 'build_all_generated', to build all generated files 1284 and only that. This can be used to prepare everything that requires 1285 things like perl for a system that lacks perl and then move everything 1286 to that system and do the rest of the build there. 1287 [Richard Levitte] 1288 1289 *) In the UI interface, make it possible to duplicate the user data. This 1290 can be used by engines that need to retain the data for a longer time 1291 than just the call where this user data is passed. 1292 [Richard Levitte] 1293 1294 *) Ignore the '-named_curve auto' value for compatibility of applications 1295 with OpenSSL 1.0.2. 1296 [Tomas Mraz <tmraz@fedoraproject.org>] 1297 1298 *) Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2 1299 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such 1300 alerts across multiple records (some of which could be empty). In practice 1301 it make no sense to send an empty alert record, or to fragment one. TLSv1.3 1302 prohibits this altogether and other libraries (BoringSSL, NSS) do not 1303 support this at all. Supporting it adds significant complexity to the 1304 record layer, and its removal is unlikely to cause interoperability 1305 issues. 1306 [Matt Caswell] 1307 1308 *) Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed 1309 with Z. These are meant to replace LONG and ZLONG and to be size safe. 1310 The use of LONG and ZLONG is discouraged and scheduled for deprecation 1311 in OpenSSL 1.2.0. 1312 [Richard Levitte] 1313 1314 *) Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string, 1315 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t. 1316 [Richard Levitte, Andy Polyakov] 1317 1318 *) Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine() 1319 does for RSA, etc. 1320 [Richard Levitte] 1321 1322 *) Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 1323 platform rather than 'mingw'. 1324 [Richard Levitte] 1325 1326 *) The functions X509_STORE_add_cert and X509_STORE_add_crl return 1327 success if they are asked to add an object which already exists 1328 in the store. This change cascades to other functions which load 1329 certificates and CRLs. 1330 [Paul Dale] 1331 1332 *) x86_64 assembly pack: annotate code with DWARF CFI directives to 1333 facilitate stack unwinding even from assembly subroutines. 1334 [Andy Polyakov] 1335 1336 *) Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN. 1337 Also remove OPENSSL_GLOBAL entirely, as it became a no-op. 1338 [Richard Levitte] 1339 1340 *) Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 1341 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 1342 which is the minimum version we support. 1343 [Richard Levitte] 1344 1345 *) Certificate time validation (X509_cmp_time) enforces stricter 1346 compliance with RFC 5280. Fractional seconds and timezone offsets 1347 are no longer allowed. 1348 [Emilia Käsper] 1349 1350 *) Add support for ARIA 1351 [Paul Dale] 1352 1353 *) s_client will now send the Server Name Indication (SNI) extension by 1354 default unless the new "-noservername" option is used. The server name is 1355 based on the host provided to the "-connect" option unless overridden by 1356 using "-servername". 1357 [Matt Caswell] 1358 1359 *) Add support for SipHash 1360 [Todd Short] 1361 1362 *) OpenSSL now fails if it receives an unrecognised record type in TLS1.0 1363 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 1364 prevent issues where no progress is being made and the peer continually 1365 sends unrecognised record types, using up resources processing them. 1366 [Matt Caswell] 1367 1368 *) 'openssl passwd' can now produce SHA256 and SHA512 based output, 1369 using the algorithm defined in 1370 https://www.akkadia.org/drepper/SHA-crypt.txt 1371 [Richard Levitte] 1372 1373 *) Heartbeat support has been removed; the ABI is changed for now. 1374 [Richard Levitte, Rich Salz] 1375 1376 *) Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd. 1377 [Emilia Käsper] 1378 1379 *) The RSA "null" method, which was partially supported to avoid patent 1380 issues, has been replaced to always returns NULL. 1381 [Rich Salz] 1382 1383 1384 Changes between 1.1.0h and 1.1.0i [xx XXX xxxx] 1385 1386 *) Client DoS due to large DH parameter 1387 1388 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 1389 malicious server can send a very large prime value to the client. This will 1390 cause the client to spend an unreasonably long period of time generating a 1391 key for this prime resulting in a hang until the client has finished. This 1392 could be exploited in a Denial Of Service attack. 1393 1394 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 1395 (CVE-2018-0732) 1396 [Guido Vranken] 1397 1398 *) Cache timing vulnerability in RSA Key Generation 1399 1400 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 1401 a cache timing side channel attack. An attacker with sufficient access to 1402 mount cache timing attacks during the RSA key generation process could 1403 recover the private key. 1404 1405 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 1406 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 1407 (CVE-2018-0737) 1408 [Billy Brumley] 1409 1410 *) Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 1411 parameter is no longer accepted, as it leads to a corrupt table. NULL 1412 pem_str is reserved for alias entries only. 1413 [Richard Levitte] 1414 1415 *) Revert blinding in ECDSA sign and instead make problematic addition 1416 length-invariant. Switch even to fixed-length Montgomery multiplication. 1417 [Andy Polyakov] 1418 1419 *) Change generating and checking of primes so that the error rate of not 1420 being prime depends on the intended use based on the size of the input. 1421 For larger primes this will result in more rounds of Miller-Rabin. 1422 The maximal error rate for primes with more than 1080 bits is lowered 1423 to 2^-128. 1424 [Kurt Roeckx, Annie Yousar] 1425 1426 *) Increase the number of Miller-Rabin rounds for DSA key generating to 64. 1427 [Kurt Roeckx] 1428 1429 *) Add blinding to ECDSA and DSA signatures to protect against side channel 1430 attacks discovered by Keegan Ryan (NCC Group). 1431 [Matt Caswell] 1432 1433 *) When unlocking a pass phrase protected PEM file or PKCS#8 container, we 1434 now allow empty (zero character) pass phrases. 1435 [Richard Levitte] 1436 1437 *) Certificate time validation (X509_cmp_time) enforces stricter 1438 compliance with RFC 5280. Fractional seconds and timezone offsets 1439 are no longer allowed. 1440 [Emilia Käsper] 1441 1442 *) Fixed a text canonicalisation bug in CMS 1443 1444 Where a CMS detached signature is used with text content the text goes 1445 through a canonicalisation process first prior to signing or verifying a 1446 signature. This process strips trailing space at the end of lines, converts 1447 line terminators to CRLF and removes additional trailing line terminators 1448 at the end of a file. A bug in the canonicalisation process meant that 1449 some characters, such as form-feed, were incorrectly treated as whitespace 1450 and removed. This is contrary to the specification (RFC5485). This fix 1451 could mean that detached text data signed with an earlier version of 1452 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data 1453 signed with a fixed OpenSSL may fail to verify with an earlier version of 1454 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data 1455 and use the "-binary" flag (for the "cms" command line application) or set 1456 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()). 1457 [Matt Caswell] 1458 1459 Changes between 1.1.0g and 1.1.0h [27 Mar 2018] 1460 1461 *) Constructed ASN.1 types with a recursive definition could exceed the stack 1462 1463 Constructed ASN.1 types with a recursive definition (such as can be found 1464 in PKCS7) could eventually exceed the stack given malicious input with 1465 excessive recursion. This could result in a Denial Of Service attack. There 1466 are no such structures used within SSL/TLS that come from untrusted sources 1467 so this is considered safe. 1468 1469 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 1470 project. 1471 (CVE-2018-0739) 1472 [Matt Caswell] 1473 1474 *) Incorrect CRYPTO_memcmp on HP-UX PA-RISC 1475 1476 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is 1477 effectively reduced to only comparing the least significant bit of each 1478 byte. This allows an attacker to forge messages that would be considered as 1479 authenticated in an amount of tries lower than that guaranteed by the 1480 security claims of the scheme. The module can only be compiled by the 1481 HP-UX assembler, so that only HP-UX PA-RISC targets are affected. 1482 1483 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg 1484 (IBM). 1485 (CVE-2018-0733) 1486 [Andy Polyakov] 1487 1488 *) Add a build target 'build_all_generated', to build all generated files 1489 and only that. This can be used to prepare everything that requires 1490 things like perl for a system that lacks perl and then move everything 1491 to that system and do the rest of the build there. 1492 [Richard Levitte] 1493 1494 *) Backport SSL_OP_NO_RENGOTIATION 1495 1496 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the 1497 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity 1498 changes this is no longer possible in 1.1.0. Therefore the new 1499 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to 1500 1.1.0 to provide equivalent functionality. 1501 1502 Note that if an application built against 1.1.0h headers (or above) is run 1503 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be 1504 accepted but nothing will happen, i.e. renegotiation will not be prevented. 1505 [Matt Caswell] 1506 1507 *) Removed the OS390-Unix config target. It relied on a script that doesn't 1508 exist. 1509 [Rich Salz] 1510 1511 *) rsaz_1024_mul_avx2 overflow bug on x86_64 1512 1513 There is an overflow bug in the AVX2 Montgomery multiplication procedure 1514 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 1515 Analysis suggests that attacks against RSA and DSA as a result of this 1516 defect would be very difficult to perform and are not believed likely. 1517 Attacks against DH1024 are considered just feasible, because most of the 1518 work necessary to deduce information about a private key may be performed 1519 offline. The amount of resources required for such an attack would be 1520 significant. However, for an attack on TLS to be meaningful, the server 1521 would have to share the DH1024 private key among multiple clients, which is 1522 no longer an option since CVE-2016-0701. 1523 1524 This only affects processors that support the AVX2 but not ADX extensions 1525 like Intel Haswell (4th generation). 1526 1527 This issue was reported to OpenSSL by David Benjamin (Google). The issue 1528 was originally found via the OSS-Fuzz project. 1529 (CVE-2017-3738) 1530 [Andy Polyakov] 1531 1532 Changes between 1.1.0f and 1.1.0g [2 Nov 2017] 1533 1534 *) bn_sqrx8x_internal carry bug on x86_64 1535 1536 There is a carry propagating bug in the x86_64 Montgomery squaring 1537 procedure. No EC algorithms are affected. Analysis suggests that attacks 1538 against RSA and DSA as a result of this defect would be very difficult to 1539 perform and are not believed likely. Attacks against DH are considered just 1540 feasible (although very difficult) because most of the work necessary to 1541 deduce information about a private key may be performed offline. The amount 1542 of resources required for such an attack would be very significant and 1543 likely only accessible to a limited number of attackers. An attacker would 1544 additionally need online access to an unpatched system using the target 1545 private key in a scenario with persistent DH parameters and a private 1546 key that is shared between multiple clients. 1547 1548 This only affects processors that support the BMI1, BMI2 and ADX extensions 1549 like Intel Broadwell (5th generation) and later or AMD Ryzen. 1550 1551 This issue was reported to OpenSSL by the OSS-Fuzz project. 1552 (CVE-2017-3736) 1553 [Andy Polyakov] 1554 1555 *) Malformed X.509 IPAddressFamily could cause OOB read 1556 1557 If an X.509 certificate has a malformed IPAddressFamily extension, 1558 OpenSSL could do a one-byte buffer overread. The most likely result 1559 would be an erroneous display of the certificate in text format. 1560 1561 This issue was reported to OpenSSL by the OSS-Fuzz project. 1562 (CVE-2017-3735) 1563 [Rich Salz] 1564 1565 Changes between 1.1.0e and 1.1.0f [25 May 2017] 1566 1567 *) Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 1568 platform rather than 'mingw'. 1569 [Richard Levitte] 1570 1571 *) Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 1572 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 1573 which is the minimum version we support. 1574 [Richard Levitte] 1575 1576 Changes between 1.1.0d and 1.1.0e [16 Feb 2017] 1577 1578 *) Encrypt-Then-Mac renegotiation crash 1579 1580 During a renegotiation handshake if the Encrypt-Then-Mac extension is 1581 negotiated where it was not in the original handshake (or vice-versa) then 1582 this can cause OpenSSL to crash (dependant on ciphersuite). Both clients 1583 and servers are affected. 1584 1585 This issue was reported to OpenSSL by Joe Orton (Red Hat). 1586 (CVE-2017-3733) 1587 [Matt Caswell] 1588 1589 Changes between 1.1.0c and 1.1.0d [26 Jan 2017] 1590 1591 *) Truncated packet could crash via OOB read 1592 1593 If one side of an SSL/TLS path is running on a 32-bit host and a specific 1594 cipher is being used, then a truncated packet can cause that host to 1595 perform an out-of-bounds read, usually resulting in a crash. 1596 1597 This issue was reported to OpenSSL by Robert Święcki of Google. 1598 (CVE-2017-3731) 1599 [Andy Polyakov] 1600 1601 *) Bad (EC)DHE parameters cause a client crash 1602 1603 If a malicious server supplies bad parameters for a DHE or ECDHE key 1604 exchange then this can result in the client attempting to dereference a 1605 NULL pointer leading to a client crash. This could be exploited in a Denial 1606 of Service attack. 1607 1608 This issue was reported to OpenSSL by Guido Vranken. 1609 (CVE-2017-3730) 1610 [Matt Caswell] 1611 1612 *) BN_mod_exp may produce incorrect results on x86_64 1613 1614 There is a carry propagating bug in the x86_64 Montgomery squaring 1615 procedure. No EC algorithms are affected. Analysis suggests that attacks 1616 against RSA and DSA as a result of this defect would be very difficult to 1617 perform and are not believed likely. Attacks against DH are considered just 1618 feasible (although very difficult) because most of the work necessary to 1619 deduce information about a private key may be performed offline. The amount 1620 of resources required for such an attack would be very significant and 1621 likely only accessible to a limited number of attackers. An attacker would 1622 additionally need online access to an unpatched system using the target 1623 private key in a scenario with persistent DH parameters and a private 1624 key that is shared between multiple clients. For example this can occur by 1625 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 1626 similar to CVE-2015-3193 but must be treated as a separate problem. 1627 1628 This issue was reported to OpenSSL by the OSS-Fuzz project. 1629 (CVE-2017-3732) 1630 [Andy Polyakov] 1631 1632 Changes between 1.1.0b and 1.1.0c [10 Nov 2016] 1633 1634 *) ChaCha20/Poly1305 heap-buffer-overflow 1635 1636 TLS connections using *-CHACHA20-POLY1305 ciphersuites are susceptible to 1637 a DoS attack by corrupting larger payloads. This can result in an OpenSSL 1638 crash. This issue is not considered to be exploitable beyond a DoS. 1639 1640 This issue was reported to OpenSSL by Robert Święcki (Google Security Team) 1641 (CVE-2016-7054) 1642 [Richard Levitte] 1643 1644 *) CMS Null dereference 1645 1646 Applications parsing invalid CMS structures can crash with a NULL pointer 1647 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE 1648 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the 1649 structure callback if an attempt is made to free certain invalid encodings. 1650 Only CHOICE structures using a callback which do not handle NULL value are 1651 affected. 1652 1653 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure. 1654 (CVE-2016-7053) 1655 [Stephen Henson] 1656 1657 *) Montgomery multiplication may produce incorrect results 1658 1659 There is a carry propagating bug in the Broadwell-specific Montgomery 1660 multiplication procedure that handles input lengths divisible by, but 1661 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 1662 and DH private keys are impossible. This is because the subroutine in 1663 question is not used in operations with the private key itself and an input 1664 of the attacker's direct choice. Otherwise the bug can manifest itself as 1665 transient authentication and key negotiation failures or reproducible 1666 erroneous outcome of public-key operations with specially crafted input. 1667 Among EC algorithms only Brainpool P-512 curves are affected and one 1668 presumably can attack ECDH key negotiation. Impact was not analyzed in 1669 detail, because pre-requisites for attack are considered unlikely. Namely 1670 multiple clients have to choose the curve in question and the server has to 1671 share the private key among them, neither of which is default behaviour. 1672 Even then only clients that chose the curve will be affected. 1673 1674 This issue was publicly reported as transient failures and was not 1675 initially recognized as a security issue. Thanks to Richard Morgan for 1676 providing reproducible case. 1677 (CVE-2016-7055) 1678 [Andy Polyakov] 1679 1680 *) Removed automatic addition of RPATH in shared libraries and executables, 1681 as this was a remainder from OpenSSL 1.0.x and isn't needed any more. 1682 [Richard Levitte] 1683 1684 Changes between 1.1.0a and 1.1.0b [26 Sep 2016] 1685 1686 *) Fix Use After Free for large message sizes 1687 1688 The patch applied to address CVE-2016-6307 resulted in an issue where if a 1689 message larger than approx 16k is received then the underlying buffer to 1690 store the incoming message is reallocated and moved. Unfortunately a 1691 dangling pointer to the old location is left which results in an attempt to 1692 write to the previously freed location. This is likely to result in a 1693 crash, however it could potentially lead to execution of arbitrary code. 1694 1695 This issue only affects OpenSSL 1.1.0a. 1696 1697 This issue was reported to OpenSSL by Robert Święcki. 1698 (CVE-2016-6309) 1699 [Matt Caswell] 1700 1701 Changes between 1.1.0 and 1.1.0a [22 Sep 2016] 1702 1703 *) OCSP Status Request extension unbounded memory growth 1704 1705 A malicious client can send an excessively large OCSP Status Request 1706 extension. If that client continually requests renegotiation, sending a 1707 large OCSP Status Request extension each time, then there will be unbounded 1708 memory growth on the server. This will eventually lead to a Denial Of 1709 Service attack through memory exhaustion. Servers with a default 1710 configuration are vulnerable even if they do not support OCSP. Builds using 1711 the "no-ocsp" build time option are not affected. 1712 1713 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 1714 (CVE-2016-6304) 1715 [Matt Caswell] 1716 1717 *) SSL_peek() hang on empty record 1718 1719 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer 1720 sends an empty record. This could be exploited by a malicious peer in a 1721 Denial Of Service attack. 1722 1723 This issue was reported to OpenSSL by Alex Gaynor. 1724 (CVE-2016-6305) 1725 [Matt Caswell] 1726 1727 *) Excessive allocation of memory in tls_get_message_header() and 1728 dtls1_preprocess_fragment() 1729 1730 A (D)TLS message includes 3 bytes for its length in the header for the 1731 message. This would allow for messages up to 16Mb in length. Messages of 1732 this length are excessive and OpenSSL includes a check to ensure that a 1733 peer is sending reasonably sized messages in order to avoid too much memory 1734 being consumed to service a connection. A flaw in the logic of version 1735 1.1.0 means that memory for the message is allocated too early, prior to 1736 the excessive message length check. Due to way memory is allocated in 1737 OpenSSL this could mean an attacker could force up to 21Mb to be allocated 1738 to service a connection. This could lead to a Denial of Service through 1739 memory exhaustion. However, the excessive message length check still takes 1740 place, and this would cause the connection to immediately fail. Assuming 1741 that the application calls SSL_free() on the failed connection in a timely 1742 manner then the 21Mb of allocated memory will then be immediately freed 1743 again. Therefore the excessive memory allocation will be transitory in 1744 nature. This then means that there is only a security impact if: 1745 1746 1) The application does not call SSL_free() in a timely manner in the event 1747 that the connection fails 1748 or 1749 2) The application is working in a constrained environment where there is 1750 very little free memory 1751 or 1752 3) The attacker initiates multiple connection attempts such that there are 1753 multiple connections in a state where memory has been allocated for the 1754 connection; SSL_free() has not yet been called; and there is insufficient 1755 memory to service the multiple requests. 1756 1757 Except in the instance of (1) above any Denial Of Service is likely to be 1758 transitory because as soon as the connection fails the memory is 1759 subsequently freed again in the SSL_free() call. However there is an 1760 increased risk during this period of application crashes due to the lack of 1761 memory - which would then mean a more serious Denial of Service. 1762 1763 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 1764 (CVE-2016-6307 and CVE-2016-6308) 1765 [Matt Caswell] 1766 1767 *) solaris-x86-cc, i.e. 32-bit configuration with vendor compiler, 1768 had to be removed. Primary reason is that vendor assembler can't 1769 assemble our modules with -KPIC flag. As result it, assembly 1770 support, was not even available as option. But its lack means 1771 lack of side-channel resistant code, which is incompatible with 1772 security by todays standards. Fortunately gcc is readily available 1773 prepackaged option, which we firmly point at... 1774 [Andy Polyakov] 1775 1776 Changes between 1.0.2h and 1.1.0 [25 Aug 2016] 1777 1778 *) Windows command-line tool supports UTF-8 opt-in option for arguments 1779 and console input. Setting OPENSSL_WIN32_UTF8 environment variable 1780 (to any value) allows Windows user to access PKCS#12 file generated 1781 with Windows CryptoAPI and protected with non-ASCII password, as well 1782 as files generated under UTF-8 locale on Linux also protected with 1783 non-ASCII password. 1784 [Andy Polyakov] 1785 1786 *) To mitigate the SWEET32 attack (CVE-2016-2183), 3DES cipher suites 1787 have been disabled by default and removed from DEFAULT, just like RC4. 1788 See the RC4 item below to re-enable both. 1789 [Rich Salz] 1790 1791 *) The method for finding the storage location for the Windows RAND seed file 1792 has changed. First we check %RANDFILE%. If that is not set then we check 1793 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If 1794 all else fails we fall back to C:\. 1795 [Matt Caswell] 1796 1797 *) The EVP_EncryptUpdate() function has had its return type changed from void 1798 to int. A return of 0 indicates and error while a return of 1 indicates 1799 success. 1800 [Matt Caswell] 1801 1802 *) The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and 1803 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch 1804 off the constant time implementation for RSA, DSA and DH have been made 1805 no-ops and deprecated. 1806 [Matt Caswell] 1807 1808 *) Windows RAND implementation was simplified to only get entropy by 1809 calling CryptGenRandom(). Various other RAND-related tickets 1810 were also closed. 1811 [Joseph Wylie Yandle, Rich Salz] 1812 1813 *) The stack and lhash API's were renamed to start with OPENSSL_SK_ 1814 and OPENSSL_LH_, respectively. The old names are available 1815 with API compatibility. They new names are now completely documented. 1816 [Rich Salz] 1817 1818 *) Unify TYPE_up_ref(obj) methods signature. 1819 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(), 1820 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an 1821 int (instead of void) like all others TYPE_up_ref() methods. 1822 So now these methods also check the return value of CRYPTO_atomic_add(), 1823 and the validity of object reference counter. 1824 [fdasilvayy@gmail.com] 1825 1826 *) With Windows Visual Studio builds, the .pdb files are installed 1827 alongside the installed libraries and executables. For a static 1828 library installation, ossl_static.pdb is the associate compiler 1829 generated .pdb file to be used when linking programs. 1830 [Richard Levitte] 1831 1832 *) Remove openssl.spec. Packaging files belong with the packagers. 1833 [Richard Levitte] 1834 1835 *) Automatic Darwin/OSX configuration has had a refresh, it will now 1836 recognise x86_64 architectures automatically. You can still decide 1837 to build for a different bitness with the environment variable 1838 KERNEL_BITS (can be 32 or 64), for example: 1839 1840 KERNEL_BITS=32 ./config 1841 1842 [Richard Levitte] 1843 1844 *) Change default algorithms in pkcs8 utility to use PKCS#5 v2.0, 1845 256 bit AES and HMAC with SHA256. 1846 [Steve Henson] 1847 1848 *) Remove support for MIPS o32 ABI on IRIX (and IRIX only). 1849 [Andy Polyakov] 1850 1851 *) Triple-DES ciphers have been moved from HIGH to MEDIUM. 1852 [Rich Salz] 1853 1854 *) To enable users to have their own config files and build file templates, 1855 Configure looks in the directory indicated by the environment variable 1856 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/ 1857 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical 1858 name and is used as is. 1859 [Richard Levitte] 1860 1861 *) The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX, 1862 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type 1863 X509_CERT_FILE_CTX was removed. 1864 [Rich Salz] 1865 1866 *) "shared" builds are now the default. To create only static libraries use 1867 the "no-shared" Configure option. 1868 [Matt Caswell] 1869 1870 *) Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options. 1871 All of these option have not worked for some while and are fundamental 1872 algorithms. 1873 [Matt Caswell] 1874 1875 *) Make various cleanup routines no-ops and mark them as deprecated. Most 1876 global cleanup functions are no longer required because they are handled 1877 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages). 1878 Explicitly de-initing can cause problems (e.g. where a library that uses 1879 OpenSSL de-inits, but an application is still using it). The affected 1880 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(), 1881 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(), 1882 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and 1883 COMP_zlib_cleanup(). 1884 [Matt Caswell] 1885 1886 *) --strict-warnings no longer enables runtime debugging options 1887 such as REF_DEBUG. Instead, debug options are automatically 1888 enabled with '--debug' builds. 1889 [Andy Polyakov, Emilia Käsper] 1890 1891 *) Made DH and DH_METHOD opaque. The structures for managing DH objects 1892 have been moved out of the public header files. New functions for managing 1893 these have been added. 1894 [Matt Caswell] 1895 1896 *) Made RSA and RSA_METHOD opaque. The structures for managing RSA 1897 objects have been moved out of the public header files. New 1898 functions for managing these have been added. 1899 [Richard Levitte] 1900 1901 *) Made DSA and DSA_METHOD opaque. The structures for managing DSA objects 1902 have been moved out of the public header files. New functions for managing 1903 these have been added. 1904 [Matt Caswell] 1905 1906 *) Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been 1907 moved out of the public header files. New functions for managing these 1908 have been added. 1909 [Matt Caswell] 1910 1911 *) Removed no-rijndael as a config option. Rijndael is an old name for AES. 1912 [Matt Caswell] 1913 1914 *) Removed the mk1mf build scripts. 1915 [Richard Levitte] 1916 1917 *) Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so 1918 it is always safe to #include a header now. 1919 [Rich Salz] 1920 1921 *) Removed the aged BC-32 config and all its supporting scripts 1922 [Richard Levitte] 1923 1924 *) Removed support for Ultrix, Netware, and OS/2. 1925 [Rich Salz] 1926 1927 *) Add support for HKDF. 1928 [Alessandro Ghedini] 1929 1930 *) Add support for blake2b and blake2s 1931 [Bill Cox] 1932 1933 *) Added support for "pipelining". Ciphers that have the 1934 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple 1935 encryptions/decryptions simultaneously. There are currently no built-in 1936 ciphers with this property but the expectation is that engines will be able 1937 to offer it to significantly improve throughput. Support has been extended 1938 into libssl so that multiple records for a single connection can be 1939 processed in one go (for >=TLS 1.1). 1940 [Matt Caswell] 1941 1942 *) Added the AFALG engine. This is an async capable engine which is able to 1943 offload work to the Linux kernel. In this initial version it only supports 1944 AES128-CBC. The kernel must be version 4.1.0 or greater. 1945 [Catriona Lucey] 1946 1947 *) OpenSSL now uses a new threading API. It is no longer necessary to 1948 set locking callbacks to use OpenSSL in a multi-threaded environment. There 1949 are two supported threading models: pthreads and windows threads. It is 1950 also possible to configure OpenSSL at compile time for "no-threads". The 1951 old threading API should no longer be used. The functions have been 1952 replaced with "no-op" compatibility macros. 1953 [Alessandro Ghedini, Matt Caswell] 1954 1955 *) Modify behavior of ALPN to invoke callback after SNI/servername 1956 callback, such that updates to the SSL_CTX affect ALPN. 1957 [Todd Short] 1958 1959 *) Add SSL_CIPHER queries for authentication and key-exchange. 1960 [Todd Short] 1961 1962 *) Changes to the DEFAULT cipherlist: 1963 - Prefer (EC)DHE handshakes over plain RSA. 1964 - Prefer AEAD ciphers over legacy ciphers. 1965 - Prefer ECDSA over RSA when both certificates are available. 1966 - Prefer TLSv1.2 ciphers/PRF. 1967 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the 1968 default cipherlist. 1969 [Emilia Käsper] 1970 1971 *) Change the ECC default curve list to be this, in order: x25519, 1972 secp256r1, secp521r1, secp384r1. 1973 [Rich Salz] 1974 1975 *) RC4 based libssl ciphersuites are now classed as "weak" ciphers and are 1976 disabled by default. They can be re-enabled using the 1977 enable-weak-ssl-ciphers option to Configure. 1978 [Matt Caswell] 1979 1980 *) If the server has ALPN configured, but supports no protocols that the 1981 client advertises, send a fatal "no_application_protocol" alert. 1982 This behaviour is SHALL in RFC 7301, though it isn't universally 1983 implemented by other servers. 1984 [Emilia Käsper] 1985 1986 *) Add X25519 support. 1987 Add ASN.1 and EVP_PKEY methods for X25519. This includes support 1988 for public and private key encoding using the format documented in 1989 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports 1990 key generation and key derivation. 1991 1992 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses 1993 X25519(29). 1994 [Steve Henson] 1995 1996 *) Deprecate SRP_VBASE_get_by_user. 1997 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 1998 In order to fix an unavoidable memory leak (CVE-2016-0798), 1999 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP 2000 seed, even if the seed is configured. 2001 2002 Users should use SRP_VBASE_get1_by_user instead. Note that in 2003 SRP_VBASE_get1_by_user, caller must free the returned value. Note 2004 also that even though configuring the SRP seed attempts to hide 2005 invalid usernames by continuing the handshake with fake 2006 credentials, this behaviour is not constant time and no strong 2007 guarantees are made that the handshake is indistinguishable from 2008 that of a valid user. 2009 [Emilia Käsper] 2010 2011 *) Configuration change; it's now possible to build dynamic engines 2012 without having to build shared libraries and vice versa. This 2013 only applies to the engines in engines/, those in crypto/engine/ 2014 will always be built into libcrypto (i.e. "static"). 2015 2016 Building dynamic engines is enabled by default; to disable, use 2017 the configuration option "disable-dynamic-engine". 2018 2019 The only requirements for building dynamic engines are the 2020 presence of the DSO module and building with position independent 2021 code, so they will also automatically be disabled if configuring 2022 with "disable-dso" or "disable-pic". 2023 2024 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE 2025 are also taken away from openssl/opensslconf.h, as they are 2026 irrelevant. 2027 [Richard Levitte] 2028 2029 *) Configuration change; if there is a known flag to compile 2030 position independent code, it will always be applied on the 2031 libcrypto and libssl object files, and never on the application 2032 object files. This means other libraries that use routines from 2033 libcrypto / libssl can be made into shared libraries regardless 2034 of how OpenSSL was configured. 2035 2036 If this isn't desirable, the configuration options "disable-pic" 2037 or "no-pic" can be used to disable the use of PIC. This will 2038 also disable building shared libraries and dynamic engines. 2039 [Richard Levitte] 2040 2041 *) Removed JPAKE code. It was experimental and has no wide use. 2042 [Rich Salz] 2043 2044 *) The INSTALL_PREFIX Makefile variable has been renamed to 2045 DESTDIR. That makes for less confusion on what this variable 2046 is for. Also, the configuration option --install_prefix is 2047 removed. 2048 [Richard Levitte] 2049 2050 *) Heartbeat for TLS has been removed and is disabled by default 2051 for DTLS; configure with enable-heartbeats. Code that uses the 2052 old #define's might need to be updated. 2053 [Emilia Käsper, Rich Salz] 2054 2055 *) Rename REF_CHECK to REF_DEBUG. 2056 [Rich Salz] 2057 2058 *) New "unified" build system 2059 2060 The "unified" build system is aimed to be a common system for all 2061 platforms we support. With it comes new support for VMS. 2062 2063 This system builds supports building in a different directory tree 2064 than the source tree. It produces one Makefile (for unix family 2065 or lookalikes), or one descrip.mms (for VMS). 2066 2067 The source of information to make the Makefile / descrip.mms is 2068 small files called 'build.info', holding the necessary 2069 information for each directory with source to compile, and a 2070 template in Configurations, like unix-Makefile.tmpl or 2071 descrip.mms.tmpl. 2072 2073 With this change, the library names were also renamed on Windows 2074 and on VMS. They now have names that are closer to the standard 2075 on Unix, and include the major version number, and in certain 2076 cases, the architecture they are built for. See "Notes on shared 2077 libraries" in INSTALL. 2078 2079 We rely heavily on the perl module Text::Template. 2080 [Richard Levitte] 2081 2082 *) Added support for auto-initialisation and de-initialisation of the library. 2083 OpenSSL no longer requires explicit init or deinit routines to be called, 2084 except in certain circumstances. See the OPENSSL_init_crypto() and 2085 OPENSSL_init_ssl() man pages for further information. 2086 [Matt Caswell] 2087 2088 *) The arguments to the DTLSv1_listen function have changed. Specifically the 2089 "peer" argument is now expected to be a BIO_ADDR object. 2090 2091 *) Rewrite of BIO networking library. The BIO library lacked consistent 2092 support of IPv6, and adding it required some more extensive 2093 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types, 2094 which hold all types of addresses and chains of address information. 2095 It also introduces a new API, with functions like BIO_socket, 2096 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept. 2097 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram 2098 have been adapted accordingly. 2099 [Richard Levitte] 2100 2101 *) RSA_padding_check_PKCS1_type_1 now accepts inputs with and without 2102 the leading 0-byte. 2103 [Emilia Käsper] 2104 2105 *) CRIME protection: disable compression by default, even if OpenSSL is 2106 compiled with zlib enabled. Applications can still enable compression 2107 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by 2108 using the SSL_CONF library to configure compression. 2109 [Emilia Käsper] 2110 2111 *) The signature of the session callback configured with 2112 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer 2113 was explicitly marked as 'const unsigned char*' instead of 2114 'unsigned char*'. 2115 [Emilia Käsper] 2116 2117 *) Always DPURIFY. Remove the use of uninitialized memory in the 2118 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op. 2119 [Emilia Käsper] 2120 2121 *) Removed many obsolete configuration items, including 2122 DES_PTR, DES_RISC1, DES_RISC2, DES_INT 2123 MD2_CHAR, MD2_INT, MD2_LONG 2124 BF_PTR, BF_PTR2 2125 IDEA_SHORT, IDEA_LONG 2126 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX 2127 [Rich Salz, with advice from Andy Polyakov] 2128 2129 *) Many BN internals have been moved to an internal header file. 2130 [Rich Salz with help from Andy Polyakov] 2131 2132 *) Configuration and writing out the results from it has changed. 2133 Files such as Makefile include/openssl/opensslconf.h and are now 2134 produced through general templates, such as Makefile.in and 2135 crypto/opensslconf.h.in and some help from the perl module 2136 Text::Template. 2137 2138 Also, the center of configuration information is no longer 2139 Makefile. Instead, Configure produces a perl module in 2140 configdata.pm which holds most of the config data (in the hash 2141 table %config), the target data that comes from the target 2142 configuration in one of the Configurations/*.conf files (in 2143 %target). 2144 [Richard Levitte] 2145 2146 *) To clarify their intended purposes, the Configure options 2147 --prefix and --openssldir change their semantics, and become more 2148 straightforward and less interdependent. 2149 2150 --prefix shall be used exclusively to give the location INSTALLTOP 2151 where programs, scripts, libraries, include files and manuals are 2152 going to be installed. The default is now /usr/local. 2153 2154 --openssldir shall be used exclusively to give the default 2155 location OPENSSLDIR where certificates, private keys, CRLs are 2156 managed. This is also where the default openssl.cnf gets 2157 installed. 2158 If the directory given with this option is a relative path, the 2159 values of both the --prefix value and the --openssldir value will 2160 be combined to become OPENSSLDIR. 2161 The default for --openssldir is INSTALLTOP/ssl. 2162 2163 Anyone who uses --openssldir to specify where OpenSSL is to be 2164 installed MUST change to use --prefix instead. 2165 [Richard Levitte] 2166 2167 *) The GOST engine was out of date and therefore it has been removed. An up 2168 to date GOST engine is now being maintained in an external repository. 2169 See: https://wiki.openssl.org/index.php/Binaries. Libssl still retains 2170 support for GOST ciphersuites (these are only activated if a GOST engine 2171 is present). 2172 [Matt Caswell] 2173 2174 *) EGD is no longer supported by default; use enable-egd when 2175 configuring. 2176 [Ben Kaduk and Rich Salz] 2177 2178 *) The distribution now has Makefile.in files, which are used to 2179 create Makefile's when Configure is run. *Configure must be run 2180 before trying to build now.* 2181 [Rich Salz] 2182 2183 *) The return value for SSL_CIPHER_description() for error conditions 2184 has changed. 2185 [Rich Salz] 2186 2187 *) Support for RFC6698/RFC7671 DANE TLSA peer authentication. 2188 2189 Obtaining and performing DNSSEC validation of TLSA records is 2190 the application's responsibility. The application provides 2191 the TLSA records of its choice to OpenSSL, and these are then 2192 used to authenticate the peer. 2193 2194 The TLSA records need not even come from DNS. They can, for 2195 example, be used to implement local end-entity certificate or 2196 trust-anchor "pinning", where the "pin" data takes the form 2197 of TLSA records, which can augment or replace verification 2198 based on the usual WebPKI public certification authorities. 2199 [Viktor Dukhovni] 2200 2201 *) Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL 2202 continues to support deprecated interfaces in default builds. 2203 However, applications are strongly advised to compile their 2204 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides 2205 the declarations of all interfaces deprecated in 0.9.8, 1.0.0 2206 or the 1.1.0 releases. 2207 2208 In environments in which all applications have been ported to 2209 not use any deprecated interfaces OpenSSL's Configure script 2210 should be used with the --api=1.1.0 option to entirely remove 2211 support for the deprecated features from the library and 2212 unconditionally disable them in the installed headers. 2213 Essentially the same effect can be achieved with the "no-deprecated" 2214 argument to Configure, except that this will always restrict 2215 the build to just the latest API, rather than a fixed API 2216 version. 2217 2218 As applications are ported to future revisions of the API, 2219 they should update their compile-time OPENSSL_API_COMPAT define 2220 accordingly, but in most cases should be able to continue to 2221 compile with later releases. 2222 2223 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are 2224 0x10000000L and 0x00908000L, respectively. However those 2225 versions did not support the OPENSSL_API_COMPAT feature, and 2226 so applications are not typically tested for explicit support 2227 of just the undeprecated features of either release. 2228 [Viktor Dukhovni] 2229 2230 *) Add support for setting the minimum and maximum supported protocol. 2231 It can bet set via the SSL_set_min_proto_version() and 2232 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and 2233 MaxProtocol. It's recommended to use the new APIs to disable 2234 protocols instead of disabling individual protocols using 2235 SSL_set_options() or SSL_CONF's Protocol. This change also 2236 removes support for disabling TLS 1.2 in the OpenSSL TLS 2237 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT. 2238 [Kurt Roeckx] 2239 2240 *) Support for ChaCha20 and Poly1305 added to libcrypto and libssl. 2241 [Andy Polyakov] 2242 2243 *) New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD 2244 and integrates ECDSA and ECDH functionality into EC. Implementations can 2245 now redirect key generation and no longer need to convert to or from 2246 ECDSA_SIG format. 2247 2248 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just 2249 include the ec.h header file instead. 2250 [Steve Henson] 2251 2252 *) Remove support for all 40 and 56 bit ciphers. This includes all the export 2253 ciphers who are no longer supported and drops support the ephemeral RSA key 2254 exchange. The LOW ciphers currently doesn't have any ciphers in it. 2255 [Kurt Roeckx] 2256 2257 *) Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX 2258 opaque. For HMAC_CTX, the following constructors and destructors 2259 were added: 2260 2261 HMAC_CTX *HMAC_CTX_new(void); 2262 void HMAC_CTX_free(HMAC_CTX *ctx); 2263 2264 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and 2265 destroy such methods has been added. See EVP_MD_meth_new(3) and 2266 EVP_CIPHER_meth_new(3) for documentation. 2267 2268 Additional changes: 2269 1) EVP_MD_CTX_cleanup(), EVP_CIPHER_CTX_cleanup() and 2270 HMAC_CTX_cleanup() were removed. HMAC_CTX_reset() and 2271 EVP_MD_CTX_reset() should be called instead to reinitialise 2272 an already created structure. 2273 2) For consistency with the majority of our object creators and 2274 destructors, EVP_MD_CTX_(create|destroy) were renamed to 2275 EVP_MD_CTX_(new|free). The old names are retained as macros 2276 for deprecated builds. 2277 [Richard Levitte] 2278 2279 *) Added ASYNC support. Libcrypto now includes the async sub-library to enable 2280 cryptographic operations to be performed asynchronously as long as an 2281 asynchronous capable engine is used. See the ASYNC_start_job() man page for 2282 further details. Libssl has also had this capability integrated with the 2283 introduction of the new mode SSL_MODE_ASYNC and associated error 2284 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man 2285 pages. This work was developed in partnership with Intel Corp. 2286 [Matt Caswell] 2287 2288 *) SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is 2289 always enabled now. If you want to disable the support you should 2290 exclude it using the list of supported ciphers. This also means that the 2291 "-no_ecdhe" option has been removed from s_server. 2292 [Kurt Roeckx] 2293 2294 *) SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls 2295 SSL_{CTX_}set1_curves() which can set a list. 2296 [Kurt Roeckx] 2297 2298 *) Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the 2299 curve you want to support using SSL_{CTX_}set1_curves(). 2300 [Kurt Roeckx] 2301 2302 *) State machine rewrite. The state machine code has been significantly 2303 refactored in order to remove much duplication of code and solve issues 2304 with the old code (see ssl/statem/README for further details). This change 2305 does have some associated API changes. Notably the SSL_state() function 2306 has been removed and replaced by SSL_get_state which now returns an 2307 "OSSL_HANDSHAKE_STATE" instead of an int. SSL_set_state() has been removed 2308 altogether. The previous handshake states defined in ssl.h and ssl3.h have 2309 also been removed. 2310 [Matt Caswell] 2311 2312 *) All instances of the string "ssleay" in the public API were replaced 2313 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's) 2314 Some error codes related to internal RSA_eay API's were renamed. 2315 [Rich Salz] 2316 2317 *) The demo files in crypto/threads were moved to demo/threads. 2318 [Rich Salz] 2319 2320 *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp, 2321 sureware and ubsec. 2322 [Matt Caswell, Rich Salz] 2323 2324 *) New ASN.1 embed macro. 2325 2326 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the 2327 structure is not allocated: it is part of the parent. That is instead of 2328 2329 FOO *x; 2330 2331 it must be: 2332 2333 FOO x; 2334 2335 This reduces memory fragmentation and make it impossible to accidentally 2336 set a mandatory field to NULL. 2337 2338 This currently only works for some fields specifically a SEQUENCE, CHOICE, 2339 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is 2340 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or 2341 SEQUENCE OF. 2342 [Steve Henson] 2343 2344 *) Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled. 2345 [Emilia Käsper] 2346 2347 *) Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although 2348 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also 2349 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add 2350 DES and RC4 ciphersuites. 2351 [Matt Caswell] 2352 2353 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 2354 This changes the decoding behaviour for some invalid messages, 2355 though the change is mostly in the more lenient direction, and 2356 legacy behaviour is preserved as much as possible. 2357 [Emilia Käsper] 2358 2359 *) Fix no-stdio build. 2360 [ David Woodhouse <David.Woodhouse@intel.com> and also 2361 Ivan Nestlerode <ivan.nestlerode@sonos.com> ] 2362 2363 *) New testing framework 2364 The testing framework has been largely rewritten and is now using 2365 perl and the perl modules Test::Harness and an extended variant of 2366 Test::More called OpenSSL::Test to do its work. All test scripts in 2367 test/ have been rewritten into test recipes, and all direct calls to 2368 executables in test/Makefile have become individual recipes using the 2369 simplified testing OpenSSL::Test::Simple. 2370 2371 For documentation on our testing modules, do: 2372 2373 perldoc test/testlib/OpenSSL/Test/Simple.pm 2374 perldoc test/testlib/OpenSSL/Test.pm 2375 2376 [Richard Levitte] 2377 2378 *) Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT 2379 are used; the latter aborts on memory leaks (usually checked on exit). 2380 Some undocumented "set malloc, etc., hooks" functions were removed 2381 and others were changed. All are now documented. 2382 [Rich Salz] 2383 2384 *) In DSA_generate_parameters_ex, if the provided seed is too short, 2385 return an error 2386 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>] 2387 2388 *) Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites 2389 from RFC4279, RFC4785, RFC5487, RFC5489. 2390 2391 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the 2392 original RSA_PSK patch. 2393 [Steve Henson] 2394 2395 *) Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay 2396 era flag was never set throughout the codebase (only read). Also removed 2397 SSL3_FLAGS_POP_BUFFER which was only used if 2398 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set. 2399 [Matt Caswell] 2400 2401 *) Changed the default name options in the "ca", "crl", "req" and "x509" 2402 to be "oneline" instead of "compat". 2403 [Richard Levitte] 2404 2405 *) Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're 2406 not aware of clients that still exhibit this bug, and the workaround 2407 hasn't been working properly for a while. 2408 [Emilia Käsper] 2409 2410 *) The return type of BIO_number_read() and BIO_number_written() as well as 2411 the corresponding num_read and num_write members in the BIO structure has 2412 changed from unsigned long to uint64_t. On platforms where an unsigned 2413 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is 2414 transferred. 2415 [Matt Caswell] 2416 2417 *) Given the pervasive nature of TLS extensions it is inadvisable to run 2418 OpenSSL without support for them. It also means that maintaining 2419 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably 2420 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed. 2421 [Matt Caswell] 2422 2423 *) Removed support for the two export grade static DH ciphersuites 2424 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 2425 were newly added (along with a number of other static DH ciphersuites) to 2426 1.0.2. However the two export ones have *never* worked since they were 2427 introduced. It seems strange in any case to be adding new export 2428 ciphersuites, and given "logjam" it also does not seem correct to fix them. 2429 [Matt Caswell] 2430 2431 *) Version negotiation has been rewritten. In particular SSLv23_method(), 2432 SSLv23_client_method() and SSLv23_server_method() have been deprecated, 2433 and turned into macros which simply call the new preferred function names 2434 TLS_method(), TLS_client_method() and TLS_server_method(). All new code 2435 should use the new names instead. Also as part of this change the ssl23.h 2436 header file has been removed. 2437 [Matt Caswell] 2438 2439 *) Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This 2440 code and the associated standard is no longer considered fit-for-purpose. 2441 [Matt Caswell] 2442 2443 *) RT2547 was closed. When generating a private key, try to make the 2444 output file readable only by the owner. This behavior change might 2445 be noticeable when interacting with other software. 2446 2447 *) Documented all exdata functions. Added CRYPTO_free_ex_index. 2448 Added a test. 2449 [Rich Salz] 2450 2451 *) Added HTTP GET support to the ocsp command. 2452 [Rich Salz] 2453 2454 *) Changed default digest for the dgst and enc commands from MD5 to 2455 sha256 2456 [Rich Salz] 2457 2458 *) RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead. 2459 [Matt Caswell] 2460 2461 *) Added support for TLS extended master secret from 2462 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an 2463 initial patch which was a great help during development. 2464 [Steve Henson] 2465 2466 *) All libssl internal structures have been removed from the public header 2467 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is 2468 now redundant). Users should not attempt to access internal structures 2469 directly. Instead they should use the provided API functions. 2470 [Matt Caswell] 2471 2472 *) config has been changed so that by default OPENSSL_NO_DEPRECATED is used. 2473 Access to deprecated functions can be re-enabled by running config with 2474 "enable-deprecated". In addition applications wishing to use deprecated 2475 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour 2476 will, by default, disable some transitive includes that previously existed 2477 in the header files (e.g. ec.h will no longer, by default, include bn.h) 2478 [Matt Caswell] 2479 2480 *) Added support for OCB mode. OpenSSL has been granted a patent license 2481 compatible with the OpenSSL license for use of OCB. Details are available 2482 at https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf. Support 2483 for OCB can be removed by calling config with no-ocb. 2484 [Matt Caswell] 2485 2486 *) SSLv2 support has been removed. It still supports receiving a SSLv2 2487 compatible client hello. 2488 [Kurt Roeckx] 2489 2490 *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz], 2491 done while fixing the error code for the key-too-small case. 2492 [Annie Yousar <a.yousar@informatik.hu-berlin.de>] 2493 2494 *) CA.sh has been removed; use CA.pl instead. 2495 [Rich Salz] 2496 2497 *) Removed old DES API. 2498 [Rich Salz] 2499 2500 *) Remove various unsupported platforms: 2501 Sony NEWS4 2502 BEOS and BEOS_R5 2503 NeXT 2504 SUNOS 2505 MPE/iX 2506 Sinix/ReliantUNIX RM400 2507 DGUX 2508 NCR 2509 Tandem 2510 Cray 2511 16-bit platforms such as WIN16 2512 [Rich Salz] 2513 2514 *) Clean up OPENSSL_NO_xxx #define's 2515 Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF 2516 Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx 2517 OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC 2518 OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160 2519 OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO 2520 Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY 2521 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP 2522 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK 2523 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY 2524 Remove MS_STATIC; it's a relic from platforms <32 bits. 2525 [Rich Salz] 2526 2527 *) Cleaned up dead code 2528 Remove all but one '#ifdef undef' which is to be looked at. 2529 [Rich Salz] 2530 2531 *) Clean up calling of xxx_free routines. 2532 Just like free(), fix most of the xxx_free routines to accept 2533 NULL. Remove the non-null checks from callers. Save much code. 2534 [Rich Salz] 2535 2536 *) Add secure heap for storage of private keys (when possible). 2537 Add BIO_s_secmem(), CBIGNUM, etc. 2538 Contributed by Akamai Technologies under our Corporate CLA. 2539 [Rich Salz] 2540 2541 *) Experimental support for a new, fast, unbiased prime candidate generator, 2542 bn_probable_prime_dh_coprime(). Not currently used by any prime generator. 2543 [Felix Laurie von Massenbach <felix@erbridge.co.uk>] 2544 2545 *) New output format NSS in the sess_id command line tool. This allows 2546 exporting the session id and the master key in NSS keylog format. 2547 [Martin Kaiser <martin@kaiser.cx>] 2548 2549 *) Harmonize version and its documentation. -f flag is used to display 2550 compilation flags. 2551 [mancha <mancha1@zoho.com>] 2552 2553 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 2554 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 2555 [mancha <mancha1@zoho.com>] 2556 2557 *) Fix some double frees. These are not thought to be exploitable. 2558 [mancha <mancha1@zoho.com>] 2559 2560 *) A missing bounds check in the handling of the TLS heartbeat extension 2561 can be used to reveal up to 64k of memory to a connected client or 2562 server. 2563 2564 Thanks for Neel Mehta of Google Security for discovering this bug and to 2565 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 2566 preparing the fix (CVE-2014-0160) 2567 [Adam Langley, Bodo Moeller] 2568 2569 *) Fix for the attack described in the paper "Recovering OpenSSL 2570 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 2571 by Yuval Yarom and Naomi Benger. Details can be obtained from: 2572 http://eprint.iacr.org/2014/140 2573 2574 Thanks to Yuval Yarom and Naomi Benger for discovering this 2575 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 2576 [Yuval Yarom and Naomi Benger] 2577 2578 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 2579 this fixes a limitation in previous versions of OpenSSL. 2580 [Steve Henson] 2581 2582 *) Experimental encrypt-then-mac support. 2583 2584 Experimental support for encrypt then mac from 2585 draft-gutmann-tls-encrypt-then-mac-02.txt 2586 2587 To enable it set the appropriate extension number (0x42 for the test 2588 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 2589 2590 For non-compliant peers (i.e. just about everything) this should have no 2591 effect. 2592 2593 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. 2594 2595 [Steve Henson] 2596 2597 *) Add EVP support for key wrapping algorithms, to avoid problems with 2598 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 2599 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 2600 algorithms and include tests cases. 2601 [Steve Henson] 2602 2603 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for 2604 enveloped data. 2605 [Steve Henson] 2606 2607 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 2608 MGF1 digest and OAEP label. 2609 [Steve Henson] 2610 2611 *) Make openssl verify return errors. 2612 [Chris Palmer <palmer@google.com> and Ben Laurie] 2613 2614 *) New function ASN1_TIME_diff to calculate the difference between two 2615 ASN1_TIME structures or one structure and the current time. 2616 [Steve Henson] 2617 2618 *) Update fips_test_suite to support multiple command line options. New 2619 test to induce all self test errors in sequence and check expected 2620 failures. 2621 [Steve Henson] 2622 2623 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and 2624 sign or verify all in one operation. 2625 [Steve Henson] 2626 2627 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm 2628 test programs and fips_test_suite. Includes functionality to parse 2629 the minimal script output of fipsalgest.pl directly. 2630 [Steve Henson] 2631 2632 *) Add authorisation parameter to FIPS_module_mode_set(). 2633 [Steve Henson] 2634 2635 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. 2636 [Steve Henson] 2637 2638 *) Use separate DRBG fields for internal and external flags. New function 2639 FIPS_drbg_health_check() to perform on demand health checking. Add 2640 generation tests to fips_test_suite with reduced health check interval to 2641 demonstrate periodic health checking. Add "nodh" option to 2642 fips_test_suite to skip very slow DH test. 2643 [Steve Henson] 2644 2645 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers 2646 based on NID. 2647 [Steve Henson] 2648 2649 *) More extensive health check for DRBG checking many more failure modes. 2650 New function FIPS_selftest_drbg_all() to handle every possible DRBG 2651 combination: call this in fips_test_suite. 2652 [Steve Henson] 2653 2654 *) Add support for canonical generation of DSA parameter 'g'. See 2655 FIPS 186-3 A.2.3. 2656 2657 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and 2658 POST to handle HMAC cases. 2659 [Steve Henson] 2660 2661 *) Add functions FIPS_module_version() and FIPS_module_version_text() 2662 to return numerical and string versions of the FIPS module number. 2663 [Steve Henson] 2664 2665 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and 2666 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented 2667 outside the validated module in the FIPS capable OpenSSL. 2668 [Steve Henson] 2669 2670 *) Minor change to DRBG entropy callback semantics. In some cases 2671 there is no multiple of the block length between min_len and 2672 max_len. Allow the callback to return more than max_len bytes 2673 of entropy but discard any extra: it is the callback's responsibility 2674 to ensure that the extra data discarded does not impact the 2675 requested amount of entropy. 2676 [Steve Henson] 2677 2678 *) Add PRNG security strength checks to RSA, DSA and ECDSA using 2679 information in FIPS186-3, SP800-57 and SP800-131A. 2680 [Steve Henson] 2681 2682 *) CCM support via EVP. Interface is very similar to GCM case except we 2683 must supply all data in one chunk (i.e. no update, final) and the 2684 message length must be supplied if AAD is used. Add algorithm test 2685 support. 2686 [Steve Henson] 2687 2688 *) Initial version of POST overhaul. Add POST callback to allow the status 2689 of POST to be monitored and/or failures induced. Modify fips_test_suite 2690 to use callback. Always run all selftests even if one fails. 2691 [Steve Henson] 2692 2693 *) XTS support including algorithm test driver in the fips_gcmtest program. 2694 Note: this does increase the maximum key length from 32 to 64 bytes but 2695 there should be no binary compatibility issues as existing applications 2696 will never use XTS mode. 2697 [Steve Henson] 2698 2699 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies 2700 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also 2701 performs algorithm blocking for unapproved PRNG types. Also do not 2702 set PRNG type in FIPS_mode_set(): leave this to the application. 2703 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with 2704 the standard OpenSSL PRNG: set additional data to a date time vector. 2705 [Steve Henson] 2706 2707 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*. 2708 This shouldn't present any incompatibility problems because applications 2709 shouldn't be using these directly and any that are will need to rethink 2710 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 2711 [Steve Henson] 2712 2713 *) Extensive self tests and health checking required by SP800-90 DRBG. 2714 Remove strength parameter from FIPS_drbg_instantiate and always 2715 instantiate at maximum supported strength. 2716 [Steve Henson] 2717 2718 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing. 2719 [Steve Henson] 2720 2721 *) New algorithm test program fips_dhvs to handle DH primitives only testing. 2722 [Steve Henson] 2723 2724 *) New function DH_compute_key_padded() to compute a DH key and pad with 2725 leading zeroes if needed: this complies with SP800-56A et al. 2726 [Steve Henson] 2727 2728 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by 2729 anything, incomplete, subject to change and largely untested at present. 2730 [Steve Henson] 2731 2732 *) Modify fipscanisteronly build option to only build the necessary object 2733 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. 2734 [Steve Henson] 2735 2736 *) Add experimental option FIPSSYMS to give all symbols in 2737 fipscanister.o and FIPS or fips prefix. This will avoid 2738 conflicts with future versions of OpenSSL. Add perl script 2739 util/fipsas.pl to preprocess assembly language source files 2740 and rename any affected symbols. 2741 [Steve Henson] 2742 2743 *) Add selftest checks and algorithm block of non-fips algorithms in 2744 FIPS mode. Remove DES2 from selftests. 2745 [Steve Henson] 2746 2747 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just 2748 return internal method without any ENGINE dependencies. Add new 2749 tiny fips sign and verify functions. 2750 [Steve Henson] 2751 2752 *) New build option no-ec2m to disable characteristic 2 code. 2753 [Steve Henson] 2754 2755 *) New build option "fipscanisteronly". This only builds fipscanister.o 2756 and (currently) associated fips utilities. Uses the file Makefile.fips 2757 instead of Makefile.org as the prototype. 2758 [Steve Henson] 2759 2760 *) Add some FIPS mode restrictions to GCM. Add internal IV generator. 2761 Update fips_gcmtest to use IV generator. 2762 [Steve Henson] 2763 2764 *) Initial, experimental EVP support for AES-GCM. AAD can be input by 2765 setting output buffer to NULL. The *Final function must be 2766 called although it will not retrieve any additional data. The tag 2767 can be set or retrieved with a ctrl. The IV length is by default 12 2768 bytes (96 bits) but can be set to an alternative value. If the IV 2769 length exceeds the maximum IV length (currently 16 bytes) it cannot be 2770 set before the key. 2771 [Steve Henson] 2772 2773 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the 2774 underlying do_cipher function handles all cipher semantics itself 2775 including padding and finalisation. This is useful if (for example) 2776 an ENGINE cipher handles block padding itself. The behaviour of 2777 do_cipher is subtly changed if this flag is set: the return value 2778 is the number of characters written to the output buffer (zero is 2779 no longer an error code) or a negative error code. Also if the 2780 input buffer is NULL and length 0 finalisation should be performed. 2781 [Steve Henson] 2782 2783 *) If a candidate issuer certificate is already part of the constructed 2784 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case. 2785 [Steve Henson] 2786 2787 *) Improve forward-security support: add functions 2788 2789 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure)) 2790 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure)) 2791 2792 for use by SSL/TLS servers; the callback function will be called whenever a 2793 new session is created, and gets to decide whether the session may be 2794 cached to make it resumable (return 0) or not (return 1). (As by the 2795 SSL/TLS protocol specifications, the session_id sent by the server will be 2796 empty to indicate that the session is not resumable; also, the server will 2797 not generate RFC 4507 (RFC 5077) session tickets.) 2798 2799 A simple reasonable callback implementation is to return is_forward_secure. 2800 This parameter will be set to 1 or 0 depending on the ciphersuite selected 2801 by the SSL/TLS server library, indicating whether it can provide forward 2802 security. 2803 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)] 2804 2805 *) New -verify_name option in command line utilities to set verification 2806 parameters by name. 2807 [Steve Henson] 2808 2809 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. 2810 Add CMAC pkey methods. 2811 [Steve Henson] 2812 2813 *) Experimental renegotiation in s_server -www mode. If the client 2814 browses /reneg connection is renegotiated. If /renegcert it is 2815 renegotiated requesting a certificate. 2816 [Steve Henson] 2817 2818 *) Add an "external" session cache for debugging purposes to s_server. This 2819 should help trace issues which normally are only apparent in deployed 2820 multi-process servers. 2821 [Steve Henson] 2822 2823 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where 2824 return value is ignored. NB. The functions RAND_add(), RAND_seed(), 2825 BIO_set_cipher() and some obscure PEM functions were changed so they 2826 can now return an error. The RAND changes required a change to the 2827 RAND_METHOD structure. 2828 [Steve Henson] 2829 2830 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of 2831 a gcc attribute to warn if the result of a function is ignored. This 2832 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h 2833 whose return value is often ignored. 2834 [Steve Henson] 2835 2836 *) New -noct, -requestct, -requirect and -ctlogfile options for s_client. 2837 These allow SCTs (signed certificate timestamps) to be requested and 2838 validated when establishing a connection. 2839 [Rob Percival <robpercival@google.com>] 2840 2841 Changes between 1.0.2g and 1.0.2h [3 May 2016] 2842 2843 *) Prevent padding oracle in AES-NI CBC MAC check 2844 2845 A MITM attacker can use a padding oracle attack to decrypt traffic 2846 when the connection uses an AES CBC cipher and the server support 2847 AES-NI. 2848 2849 This issue was introduced as part of the fix for Lucky 13 padding 2850 attack (CVE-2013-0169). The padding check was rewritten to be in 2851 constant time by making sure that always the same bytes are read and 2852 compared against either the MAC or padding bytes. But it no longer 2853 checked that there was enough data to have both the MAC and padding 2854 bytes. 2855 2856 This issue was reported by Juraj Somorovsky using TLS-Attacker. 2857 (CVE-2016-2107) 2858 [Kurt Roeckx] 2859 2860 *) Fix EVP_EncodeUpdate overflow 2861 2862 An overflow can occur in the EVP_EncodeUpdate() function which is used for 2863 Base64 encoding of binary data. If an attacker is able to supply very large 2864 amounts of input data then a length check can overflow resulting in a heap 2865 corruption. 2866 2867 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 2868 the PEM_write_bio* family of functions. These are mainly used within the 2869 OpenSSL command line applications, so any application which processes data 2870 from an untrusted source and outputs it as a PEM file should be considered 2871 vulnerable to this issue. User applications that call these APIs directly 2872 with large amounts of untrusted data may also be vulnerable. 2873 2874 This issue was reported by Guido Vranken. 2875 (CVE-2016-2105) 2876 [Matt Caswell] 2877 2878 *) Fix EVP_EncryptUpdate overflow 2879 2880 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 2881 is able to supply very large amounts of input data after a previous call to 2882 EVP_EncryptUpdate() with a partial block then a length check can overflow 2883 resulting in a heap corruption. Following an analysis of all OpenSSL 2884 internal usage of the EVP_EncryptUpdate() function all usage is one of two 2885 forms. The first form is where the EVP_EncryptUpdate() call is known to be 2886 the first called function after an EVP_EncryptInit(), and therefore that 2887 specific call must be safe. The second form is where the length passed to 2888 EVP_EncryptUpdate() can be seen from the code to be some small value and 2889 therefore there is no possibility of an overflow. Since all instances are 2890 one of these two forms, it is believed that there can be no overflows in 2891 internal code due to this problem. It should be noted that 2892 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 2893 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 2894 of these calls have also been analysed too and it is believed there are no 2895 instances in internal usage where an overflow could occur. 2896 2897 This issue was reported by Guido Vranken. 2898 (CVE-2016-2106) 2899 [Matt Caswell] 2900 2901 *) Prevent ASN.1 BIO excessive memory allocation 2902 2903 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 2904 a short invalid encoding can cause allocation of large amounts of memory 2905 potentially consuming excessive resources or exhausting memory. 2906 2907 Any application parsing untrusted data through d2i BIO functions is 2908 affected. The memory based functions such as d2i_X509() are *not* affected. 2909 Since the memory based functions are used by the TLS library, TLS 2910 applications are not affected. 2911 2912 This issue was reported by Brian Carpenter. 2913 (CVE-2016-2109) 2914 [Stephen Henson] 2915 2916 *) EBCDIC overread 2917 2918 ASN1 Strings that are over 1024 bytes can cause an overread in applications 2919 using the X509_NAME_oneline() function on EBCDIC systems. This could result 2920 in arbitrary stack data being returned in the buffer. 2921 2922 This issue was reported by Guido Vranken. 2923 (CVE-2016-2176) 2924 [Matt Caswell] 2925 2926 *) Modify behavior of ALPN to invoke callback after SNI/servername 2927 callback, such that updates to the SSL_CTX affect ALPN. 2928 [Todd Short] 2929 2930 *) Remove LOW from the DEFAULT cipher list. This removes singles DES from the 2931 default. 2932 [Kurt Roeckx] 2933 2934 *) Only remove the SSLv2 methods with the no-ssl2-method option. When the 2935 methods are enabled and ssl2 is disabled the methods return NULL. 2936 [Kurt Roeckx] 2937 2938 Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 2939 2940 * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 2941 Builds that are not configured with "enable-weak-ssl-ciphers" will not 2942 provide any "EXPORT" or "LOW" strength ciphers. 2943 [Viktor Dukhovni] 2944 2945 * Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 2946 is by default disabled at build-time. Builds that are not configured with 2947 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 2948 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 2949 will need to explicitly call either of: 2950 2951 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 2952 or 2953 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 2954 2955 as appropriate. Even if either of those is used, or the application 2956 explicitly uses the version-specific SSLv2_method() or its client and 2957 server variants, SSLv2 ciphers vulnerable to exhaustive search key 2958 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 2959 ciphers, and SSLv2 56-bit DES are no longer available. 2960 (CVE-2016-0800) 2961 [Viktor Dukhovni] 2962 2963 *) Fix a double-free in DSA code 2964 2965 A double free bug was discovered when OpenSSL parses malformed DSA private 2966 keys and could lead to a DoS attack or memory corruption for applications 2967 that receive DSA private keys from untrusted sources. This scenario is 2968 considered rare. 2969 2970 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 2971 libFuzzer. 2972 (CVE-2016-0705) 2973 [Stephen Henson] 2974 2975 *) Disable SRP fake user seed to address a server memory leak. 2976 2977 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 2978 2979 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 2980 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 2981 was changed to ignore the "fake user" SRP seed, even if the seed 2982 is configured. 2983 2984 Users should use SRP_VBASE_get1_by_user instead. Note that in 2985 SRP_VBASE_get1_by_user, caller must free the returned value. Note 2986 also that even though configuring the SRP seed attempts to hide 2987 invalid usernames by continuing the handshake with fake 2988 credentials, this behaviour is not constant time and no strong 2989 guarantees are made that the handshake is indistinguishable from 2990 that of a valid user. 2991 (CVE-2016-0798) 2992 [Emilia Käsper] 2993 2994 *) Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 2995 2996 In the BN_hex2bn function the number of hex digits is calculated using an 2997 int value |i|. Later |bn_expand| is called with a value of |i * 4|. For 2998 large values of |i| this can result in |bn_expand| not allocating any 2999 memory because |i * 4| is negative. This can leave the internal BIGNUM data 3000 field as NULL leading to a subsequent NULL ptr deref. For very large values 3001 of |i|, the calculation |i * 4| could be a positive value smaller than |i|. 3002 In this case memory is allocated to the internal BIGNUM data field, but it 3003 is insufficiently sized leading to heap corruption. A similar issue exists 3004 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 3005 is ever called by user applications with very large untrusted hex/dec data. 3006 This is anticipated to be a rare occurrence. 3007 3008 All OpenSSL internal usage of these functions use data that is not expected 3009 to be untrusted, e.g. config file data or application command line 3010 arguments. If user developed applications generate config file data based 3011 on untrusted data then it is possible that this could also lead to security 3012 consequences. This is also anticipated to be rare. 3013 3014 This issue was reported to OpenSSL by Guido Vranken. 3015 (CVE-2016-0797) 3016 [Matt Caswell] 3017 3018 *) Fix memory issues in BIO_*printf functions 3019 3020 The internal |fmtstr| function used in processing a "%s" format string in 3021 the BIO_*printf functions could overflow while calculating the length of a 3022 string and cause an OOB read when printing very long strings. 3023 3024 Additionally the internal |doapr_outch| function can attempt to write to an 3025 OOB memory location (at an offset from the NULL pointer) in the event of a 3026 memory allocation failure. In 1.0.2 and below this could be caused where 3027 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 3028 could be in processing a very long "%s" format string. Memory leaks can 3029 also occur. 3030 3031 The first issue may mask the second issue dependent on compiler behaviour. 3032 These problems could enable attacks where large amounts of untrusted data 3033 is passed to the BIO_*printf functions. If applications use these functions 3034 in this way then they could be vulnerable. OpenSSL itself uses these 3035 functions when printing out human-readable dumps of ASN.1 data. Therefore 3036 applications that print this data could be vulnerable if the data is from 3037 untrusted sources. OpenSSL command line applications could also be 3038 vulnerable where they print out ASN.1 data, or if untrusted data is passed 3039 as command line arguments. 3040 3041 Libssl is not considered directly vulnerable. Additionally certificates etc 3042 received via remote connections via libssl are also unlikely to be able to 3043 trigger these issues because of message size limits enforced within libssl. 3044 3045 This issue was reported to OpenSSL Guido Vranken. 3046 (CVE-2016-0799) 3047 [Matt Caswell] 3048 3049 *) Side channel attack on modular exponentiation 3050 3051 A side-channel attack was found which makes use of cache-bank conflicts on 3052 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 3053 of RSA keys. The ability to exploit this issue is limited as it relies on 3054 an attacker who has control of code in a thread running on the same 3055 hyper-threaded core as the victim thread which is performing decryptions. 3056 3057 This issue was reported to OpenSSL by Yuval Yarom, The University of 3058 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 3059 Nadia Heninger, University of Pennsylvania with more information at 3060 http://cachebleed.info. 3061 (CVE-2016-0702) 3062 [Andy Polyakov] 3063 3064 *) Change the req app to generate a 2048-bit RSA/DSA key by default, 3065 if no keysize is specified with default_bits. This fixes an 3066 omission in an earlier change that changed all RSA/DSA key generation 3067 apps to use 2048 bits by default. 3068 [Emilia Käsper] 3069 3070 Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 3071 *) DH small subgroups 3072 3073 Historically OpenSSL only ever generated DH parameters based on "safe" 3074 primes. More recently (in version 1.0.2) support was provided for 3075 generating X9.42 style parameter files such as those required for RFC 5114 3076 support. The primes used in such files may not be "safe". Where an 3077 application is using DH configured with parameters based on primes that are 3078 not "safe" then an attacker could use this fact to find a peer's private 3079 DH exponent. This attack requires that the attacker complete multiple 3080 handshakes in which the peer uses the same private DH exponent. For example 3081 this could be used to discover a TLS server's private DH exponent if it's 3082 reusing the private DH exponent or it's using a static DH ciphersuite. 3083 3084 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 3085 TLS. It is not on by default. If the option is not set then the server 3086 reuses the same private DH exponent for the life of the server process and 3087 would be vulnerable to this attack. It is believed that many popular 3088 applications do set this option and would therefore not be at risk. 3089 3090 The fix for this issue adds an additional check where a "q" parameter is 3091 available (as is the case in X9.42 based parameters). This detects the 3092 only known attack, and is the only possible defense for static DH 3093 ciphersuites. This could have some performance impact. 3094 3095 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 3096 default and cannot be disabled. This could have some performance impact. 3097 3098 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 3099 (CVE-2016-0701) 3100 [Matt Caswell] 3101 3102 *) SSLv2 doesn't block disabled ciphers 3103 3104 A malicious client can negotiate SSLv2 ciphers that have been disabled on 3105 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 3106 been disabled, provided that the SSLv2 protocol was not also disabled via 3107 SSL_OP_NO_SSLv2. 3108 3109 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 3110 and Sebastian Schinzel. 3111 (CVE-2015-3197) 3112 [Viktor Dukhovni] 3113 3114 Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 3115 3116 *) BN_mod_exp may produce incorrect results on x86_64 3117 3118 There is a carry propagating bug in the x86_64 Montgomery squaring 3119 procedure. No EC algorithms are affected. Analysis suggests that attacks 3120 against RSA and DSA as a result of this defect would be very difficult to 3121 perform and are not believed likely. Attacks against DH are considered just 3122 feasible (although very difficult) because most of the work necessary to 3123 deduce information about a private key may be performed offline. The amount 3124 of resources required for such an attack would be very significant and 3125 likely only accessible to a limited number of attackers. An attacker would 3126 additionally need online access to an unpatched system using the target 3127 private key in a scenario with persistent DH parameters and a private 3128 key that is shared between multiple clients. For example this can occur by 3129 default in OpenSSL DHE based SSL/TLS ciphersuites. 3130 3131 This issue was reported to OpenSSL by Hanno Böck. 3132 (CVE-2015-3193) 3133 [Andy Polyakov] 3134 3135 *) Certificate verify crash with missing PSS parameter 3136 3137 The signature verification routines will crash with a NULL pointer 3138 dereference if presented with an ASN.1 signature using the RSA PSS 3139 algorithm and absent mask generation function parameter. Since these 3140 routines are used to verify certificate signature algorithms this can be 3141 used to crash any certificate verification operation and exploited in a 3142 DoS attack. Any application which performs certificate verification is 3143 vulnerable including OpenSSL clients and servers which enable client 3144 authentication. 3145 3146 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 3147 (CVE-2015-3194) 3148 [Stephen Henson] 3149 3150 *) X509_ATTRIBUTE memory leak 3151 3152 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 3153 memory. This structure is used by the PKCS#7 and CMS routines so any 3154 application which reads PKCS#7 or CMS data from untrusted sources is 3155 affected. SSL/TLS is not affected. 3156 3157 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 3158 libFuzzer. 3159 (CVE-2015-3195) 3160 [Stephen Henson] 3161 3162 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 3163 This changes the decoding behaviour for some invalid messages, 3164 though the change is mostly in the more lenient direction, and 3165 legacy behaviour is preserved as much as possible. 3166 [Emilia Käsper] 3167 3168 *) In DSA_generate_parameters_ex, if the provided seed is too short, 3169 return an error 3170 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>] 3171 3172 Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 3173 3174 *) Alternate chains certificate forgery 3175 3176 During certificate verification, OpenSSL will attempt to find an 3177 alternative certificate chain if the first attempt to build such a chain 3178 fails. An error in the implementation of this logic can mean that an 3179 attacker could cause certain checks on untrusted certificates to be 3180 bypassed, such as the CA flag, enabling them to use a valid leaf 3181 certificate to act as a CA and "issue" an invalid certificate. 3182 3183 This issue was reported to OpenSSL by Adam Langley/David Benjamin 3184 (Google/BoringSSL). 3185 [Matt Caswell] 3186 3187 Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 3188 3189 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI 3190 incompatibility in the handling of HMAC. The previous ABI has now been 3191 restored. 3192 [Matt Caswell] 3193 3194 Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 3195 3196 *) Malformed ECParameters causes infinite loop 3197 3198 When processing an ECParameters structure OpenSSL enters an infinite loop 3199 if the curve specified is over a specially malformed binary polynomial 3200 field. 3201 3202 This can be used to perform denial of service against any 3203 system which processes public keys, certificate requests or 3204 certificates. This includes TLS clients and TLS servers with 3205 client authentication enabled. 3206 3207 This issue was reported to OpenSSL by Joseph Barr-Pixton. 3208 (CVE-2015-1788) 3209 [Andy Polyakov] 3210 3211 *) Exploitable out-of-bounds read in X509_cmp_time 3212 3213 X509_cmp_time does not properly check the length of the ASN1_TIME 3214 string and can read a few bytes out of bounds. In addition, 3215 X509_cmp_time accepts an arbitrary number of fractional seconds in the 3216 time string. 3217 3218 An attacker can use this to craft malformed certificates and CRLs of 3219 various sizes and potentially cause a segmentation fault, resulting in 3220 a DoS on applications that verify certificates or CRLs. TLS clients 3221 that verify CRLs are affected. TLS clients and servers with client 3222 authentication enabled may be affected if they use custom verification 3223 callbacks. 3224 3225 This issue was reported to OpenSSL by Robert Swiecki (Google), and 3226 independently by Hanno Böck. 3227 (CVE-2015-1789) 3228 [Emilia Käsper] 3229 3230 *) PKCS7 crash with missing EnvelopedContent 3231 3232 The PKCS#7 parsing code does not handle missing inner EncryptedContent 3233 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 3234 with missing content and trigger a NULL pointer dereference on parsing. 3235 3236 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 3237 structures from untrusted sources are affected. OpenSSL clients and 3238 servers are not affected. 3239 3240 This issue was reported to OpenSSL by Michal Zalewski (Google). 3241 (CVE-2015-1790) 3242 [Emilia Käsper] 3243 3244 *) CMS verify infinite loop with unknown hash function 3245 3246 When verifying a signedData message the CMS code can enter an infinite loop 3247 if presented with an unknown hash function OID. This can be used to perform 3248 denial of service against any system which verifies signedData messages using 3249 the CMS code. 3250 This issue was reported to OpenSSL by Johannes Bauer. 3251 (CVE-2015-1792) 3252 [Stephen Henson] 3253 3254 *) Race condition handling NewSessionTicket 3255 3256 If a NewSessionTicket is received by a multi-threaded client when attempting to 3257 reuse a previous ticket then a race condition can occur potentially leading to 3258 a double free of the ticket data. 3259 (CVE-2015-1791) 3260 [Matt Caswell] 3261 3262 *) Only support 256-bit or stronger elliptic curves with the 3263 'ecdh_auto' setting (server) or by default (client). Of supported 3264 curves, prefer P-256 (both). 3265 [Emilia Kasper] 3266 3267 Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 3268 3269 *) ClientHello sigalgs DoS fix 3270 3271 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 3272 invalid signature algorithms extension a NULL pointer dereference will 3273 occur. This can be exploited in a DoS attack against the server. 3274 3275 This issue was was reported to OpenSSL by David Ramos of Stanford 3276 University. 3277 (CVE-2015-0291) 3278 [Stephen Henson and Matt Caswell] 3279 3280 *) Multiblock corrupted pointer fix 3281 3282 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 3283 feature only applies on 64 bit x86 architecture platforms that support AES 3284 NI instructions. A defect in the implementation of "multiblock" can cause 3285 OpenSSL's internal write buffer to become incorrectly set to NULL when 3286 using non-blocking IO. Typically, when the user application is using a 3287 socket BIO for writing, this will only result in a failed connection. 3288 However if some other BIO is used then it is likely that a segmentation 3289 fault will be triggered, thus enabling a potential DoS attack. 3290 3291 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 3292 (CVE-2015-0290) 3293 [Matt Caswell] 3294 3295 *) Segmentation fault in DTLSv1_listen fix 3296 3297 The DTLSv1_listen function is intended to be stateless and processes the 3298 initial ClientHello from many peers. It is common for user code to loop 3299 over the call to DTLSv1_listen until a valid ClientHello is received with 3300 an associated cookie. A defect in the implementation of DTLSv1_listen means 3301 that state is preserved in the SSL object from one invocation to the next 3302 that can lead to a segmentation fault. Errors processing the initial 3303 ClientHello can trigger this scenario. An example of such an error could be 3304 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 3305 server. 3306 3307 This issue was reported to OpenSSL by Per Allansson. 3308 (CVE-2015-0207) 3309 [Matt Caswell] 3310 3311 *) Segmentation fault in ASN1_TYPE_cmp fix 3312 3313 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 3314 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 3315 certificate signature algorithm consistency this can be used to crash any 3316 certificate verification operation and exploited in a DoS attack. Any 3317 application which performs certificate verification is vulnerable including 3318 OpenSSL clients and servers which enable client authentication. 3319 (CVE-2015-0286) 3320 [Stephen Henson] 3321 3322 *) Segmentation fault for invalid PSS parameters fix 3323 3324 The signature verification routines will crash with a NULL pointer 3325 dereference if presented with an ASN.1 signature using the RSA PSS 3326 algorithm and invalid parameters. Since these routines are used to verify 3327 certificate signature algorithms this can be used to crash any 3328 certificate verification operation and exploited in a DoS attack. Any 3329 application which performs certificate verification is vulnerable including 3330 OpenSSL clients and servers which enable client authentication. 3331 3332 This issue was was reported to OpenSSL by Brian Carpenter. 3333 (CVE-2015-0208) 3334 [Stephen Henson] 3335 3336 *) ASN.1 structure reuse memory corruption fix 3337 3338 Reusing a structure in ASN.1 parsing may allow an attacker to cause 3339 memory corruption via an invalid write. Such reuse is and has been 3340 strongly discouraged and is believed to be rare. 3341 3342 Applications that parse structures containing CHOICE or ANY DEFINED BY 3343 components may be affected. Certificate parsing (d2i_X509 and related 3344 functions) are however not affected. OpenSSL clients and servers are 3345 not affected. 3346 (CVE-2015-0287) 3347 [Stephen Henson] 3348 3349 *) PKCS7 NULL pointer dereferences fix 3350 3351 The PKCS#7 parsing code does not handle missing outer ContentInfo 3352 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 3353 missing content and trigger a NULL pointer dereference on parsing. 3354 3355 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 3356 otherwise parse PKCS#7 structures from untrusted sources are 3357 affected. OpenSSL clients and servers are not affected. 3358 3359 This issue was reported to OpenSSL by Michal Zalewski (Google). 3360 (CVE-2015-0289) 3361 [Emilia Käsper] 3362 3363 *) DoS via reachable assert in SSLv2 servers fix 3364 3365 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 3366 servers that both support SSLv2 and enable export cipher suites by sending 3367 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 3368 3369 This issue was discovered by Sean Burford (Google) and Emilia Käsper 3370 (OpenSSL development team). 3371 (CVE-2015-0293) 3372 [Emilia Käsper] 3373 3374 *) Empty CKE with client auth and DHE fix 3375 3376 If client auth is used then a server can seg fault in the event of a DHE 3377 ciphersuite being selected and a zero length ClientKeyExchange message 3378 being sent by the client. This could be exploited in a DoS attack. 3379 (CVE-2015-1787) 3380 [Matt Caswell] 3381 3382 *) Handshake with unseeded PRNG fix 3383 3384 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 3385 with an unseeded PRNG. The conditions are: 3386 - The client is on a platform where the PRNG has not been seeded 3387 automatically, and the user has not seeded manually 3388 - A protocol specific client method version has been used (i.e. not 3389 SSL_client_methodv23) 3390 - A ciphersuite is used that does not require additional random data from 3391 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 3392 3393 If the handshake succeeds then the client random that has been used will 3394 have been generated from a PRNG with insufficient entropy and therefore the 3395 output may be predictable. 3396 3397 For example using the following command with an unseeded openssl will 3398 succeed on an unpatched platform: 3399 3400 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 3401 (CVE-2015-0285) 3402 [Matt Caswell] 3403 3404 *) Use After Free following d2i_ECPrivatekey error fix 3405 3406 A malformed EC private key file consumed via the d2i_ECPrivateKey function 3407 could cause a use after free condition. This, in turn, could cause a double 3408 free in several private key parsing functions (such as d2i_PrivateKey 3409 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 3410 for applications that receive EC private keys from untrusted 3411 sources. This scenario is considered rare. 3412 3413 This issue was discovered by the BoringSSL project and fixed in their 3414 commit 517073cd4b. 3415 (CVE-2015-0209) 3416 [Matt Caswell] 3417 3418 *) X509_to_X509_REQ NULL pointer deref fix 3419 3420 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 3421 the certificate key is invalid. This function is rarely used in practice. 3422 3423 This issue was discovered by Brian Carpenter. 3424 (CVE-2015-0288) 3425 [Stephen Henson] 3426 3427 *) Removed the export ciphers from the DEFAULT ciphers 3428 [Kurt Roeckx] 3429 3430 Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 3431 3432 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 3433 ARMv5 through ARMv8, as opposite to "locking" it to single one. 3434 So far those who have to target multiple platforms would compromise 3435 and argue that binary targeting say ARMv5 would still execute on 3436 ARMv8. "Universal" build resolves this compromise by providing 3437 near-optimal performance even on newer platforms. 3438 [Andy Polyakov] 3439 3440 *) Accelerated NIST P-256 elliptic curve implementation for x86_64 3441 (other platforms pending). 3442 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov] 3443 3444 *) Add support for the SignedCertificateTimestampList certificate and 3445 OCSP response extensions from RFC6962. 3446 [Rob Stradling] 3447 3448 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 3449 for corner cases. (Certain input points at infinity could lead to 3450 bogus results, with non-infinity inputs mapped to infinity too.) 3451 [Bodo Moeller] 3452 3453 *) Initial support for PowerISA 2.0.7, first implemented in POWER8. 3454 This covers AES, SHA256/512 and GHASH. "Initial" means that most 3455 common cases are optimized and there still is room for further 3456 improvements. Vector Permutation AES for Altivec is also added. 3457 [Andy Polyakov] 3458 3459 *) Add support for little-endian ppc64 Linux target. 3460 [Marcelo Cerri (IBM)] 3461 3462 *) Initial support for AMRv8 ISA crypto extensions. This covers AES, 3463 SHA1, SHA256 and GHASH. "Initial" means that most common cases 3464 are optimized and there still is room for further improvements. 3465 Both 32- and 64-bit modes are supported. 3466 [Andy Polyakov, Ard Biesheuvel (Linaro)] 3467 3468 *) Improved ARMv7 NEON support. 3469 [Andy Polyakov] 3470 3471 *) Support for SPARC Architecture 2011 crypto extensions, first 3472 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 3473 SHA256/512, MD5, GHASH and modular exponentiation. 3474 [Andy Polyakov, David Miller] 3475 3476 *) Accelerated modular exponentiation for Intel processors, a.k.a. 3477 RSAZ. 3478 [Shay Gueron & Vlad Krasnov (Intel Corp)] 3479 3480 *) Support for new and upcoming Intel processors, including AVX2, 3481 BMI and SHA ISA extensions. This includes additional "stitched" 3482 implementations, AESNI-SHA256 and GCM, and multi-buffer support 3483 for TLS encrypt. 3484 3485 This work was sponsored by Intel Corp. 3486 [Andy Polyakov] 3487 3488 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 3489 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 3490 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 3491 [Steve Henson] 3492 3493 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 3494 this fixes a limitation in previous versions of OpenSSL. 3495 [Steve Henson] 3496 3497 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 3498 MGF1 digest and OAEP label. 3499 [Steve Henson] 3500 3501 *) Add EVP support for key wrapping algorithms, to avoid problems with 3502 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 3503 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 3504 algorithms and include tests cases. 3505 [Steve Henson] 3506 3507 *) Add functions to allocate and set the fields of an ECDSA_METHOD 3508 structure. 3509 [Douglas E. Engert, Steve Henson] 3510 3511 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 3512 difference in days and seconds between two tm or ASN1_TIME structures. 3513 [Steve Henson] 3514 3515 *) Add -rev test option to s_server to just reverse order of characters 3516 received by client and send back to server. Also prints an abbreviated 3517 summary of the connection parameters. 3518 [Steve Henson] 3519 3520 *) New option -brief for s_client and s_server to print out a brief summary 3521 of connection parameters. 3522 [Steve Henson] 3523 3524 *) Add callbacks for arbitrary TLS extensions. 3525 [Trevor Perrin <trevp@trevp.net> and Ben Laurie] 3526 3527 *) New option -crl_download in several openssl utilities to download CRLs 3528 from CRLDP extension in certificates. 3529 [Steve Henson] 3530 3531 *) New options -CRL and -CRLform for s_client and s_server for CRLs. 3532 [Steve Henson] 3533 3534 *) New function X509_CRL_diff to generate a delta CRL from the difference 3535 of two full CRLs. Add support to "crl" utility. 3536 [Steve Henson] 3537 3538 *) New functions to set lookup_crls function and to retrieve 3539 X509_STORE from X509_STORE_CTX. 3540 [Steve Henson] 3541 3542 *) Print out deprecated issuer and subject unique ID fields in 3543 certificates. 3544 [Steve Henson] 3545 3546 *) Extend OCSP I/O functions so they can be used for simple general purpose 3547 HTTP as well as OCSP. New wrapper function which can be used to download 3548 CRLs using the OCSP API. 3549 [Steve Henson] 3550 3551 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs. 3552 [Steve Henson] 3553 3554 *) SSL_CONF* functions. These provide a common framework for application 3555 configuration using configuration files or command lines. 3556 [Steve Henson] 3557 3558 *) SSL/TLS tracing code. This parses out SSL/TLS records using the 3559 message callback and prints the results. Needs compile time option 3560 "enable-ssl-trace". New options to s_client and s_server to enable 3561 tracing. 3562 [Steve Henson] 3563 3564 *) New ctrl and macro to retrieve supported points extensions. 3565 Print out extension in s_server and s_client. 3566 [Steve Henson] 3567 3568 *) New functions to retrieve certificate signature and signature 3569 OID NID. 3570 [Steve Henson] 3571 3572 *) Add functions to retrieve and manipulate the raw cipherlist sent by a 3573 client to OpenSSL. 3574 [Steve Henson] 3575 3576 *) New Suite B modes for TLS code. These use and enforce the requirements 3577 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 3578 only use Suite B curves. The Suite B modes can be set by using the 3579 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 3580 [Steve Henson] 3581 3582 *) New chain verification flags for Suite B levels of security. Check 3583 algorithms are acceptable when flags are set in X509_verify_cert. 3584 [Steve Henson] 3585 3586 *) Make tls1_check_chain return a set of flags indicating checks passed 3587 by a certificate chain. Add additional tests to handle client 3588 certificates: checks for matching certificate type and issuer name 3589 comparison. 3590 [Steve Henson] 3591 3592 *) If an attempt is made to use a signature algorithm not in the peer 3593 preference list abort the handshake. If client has no suitable 3594 signature algorithms in response to a certificate request do not 3595 use the certificate. 3596 [Steve Henson] 3597 3598 *) If server EC tmp key is not in client preference list abort handshake. 3599 [Steve Henson] 3600 3601 *) Add support for certificate stores in CERT structure. This makes it 3602 possible to have different stores per SSL structure or one store in 3603 the parent SSL_CTX. Include distinct stores for certificate chain 3604 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 3605 to build and store a certificate chain in CERT structure: returning 3606 an error if the chain cannot be built: this will allow applications 3607 to test if a chain is correctly configured. 3608 3609 Note: if the CERT based stores are not set then the parent SSL_CTX 3610 store is used to retain compatibility with existing behaviour. 3611 3612 [Steve Henson] 3613 3614 *) New function ssl_set_client_disabled to set a ciphersuite disabled 3615 mask based on the current session, check mask when sending client 3616 hello and checking the requested ciphersuite. 3617 [Steve Henson] 3618 3619 *) New ctrls to retrieve and set certificate types in a certificate 3620 request message. Print out received values in s_client. If certificate 3621 types is not set with custom values set sensible values based on 3622 supported signature algorithms. 3623 [Steve Henson] 3624 3625 *) Support for distinct client and server supported signature algorithms. 3626 [Steve Henson] 3627 3628 *) Add certificate callback. If set this is called whenever a certificate 3629 is required by client or server. An application can decide which 3630 certificate chain to present based on arbitrary criteria: for example 3631 supported signature algorithms. Add very simple example to s_server. 3632 This fixes many of the problems and restrictions of the existing client 3633 certificate callback: for example you can now clear an existing 3634 certificate and specify the whole chain. 3635 [Steve Henson] 3636 3637 *) Add new "valid_flags" field to CERT_PKEY structure which determines what 3638 the certificate can be used for (if anything). Set valid_flags field 3639 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 3640 to have similar checks in it. 3641 3642 Add new "cert_flags" field to CERT structure and include a "strict mode". 3643 This enforces some TLS certificate requirements (such as only permitting 3644 certificate signature algorithms contained in the supported algorithms 3645 extension) which some implementations ignore: this option should be used 3646 with caution as it could cause interoperability issues. 3647 [Steve Henson] 3648 3649 *) Update and tidy signature algorithm extension processing. Work out 3650 shared signature algorithms based on preferences and peer algorithms 3651 and print them out in s_client and s_server. Abort handshake if no 3652 shared signature algorithms. 3653 [Steve Henson] 3654 3655 *) Add new functions to allow customised supported signature algorithms 3656 for SSL and SSL_CTX structures. Add options to s_client and s_server 3657 to support them. 3658 [Steve Henson] 3659 3660 *) New function SSL_certs_clear() to delete all references to certificates 3661 from an SSL structure. Before this once a certificate had been added 3662 it couldn't be removed. 3663 [Steve Henson] 3664 3665 *) Integrate hostname, email address and IP address checking with certificate 3666 verification. New verify options supporting checking in openssl utility. 3667 [Steve Henson] 3668 3669 *) Fixes and wildcard matching support to hostname and email checking 3670 functions. Add manual page. 3671 [Florian Weimer (Red Hat Product Security Team)] 3672 3673 *) New functions to check a hostname email or IP address against a 3674 certificate. Add options x509 utility to print results of checks against 3675 a certificate. 3676 [Steve Henson] 3677 3678 *) Fix OCSP checking. 3679 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie] 3680 3681 *) Initial experimental support for explicitly trusted non-root CAs. 3682 OpenSSL still tries to build a complete chain to a root but if an 3683 intermediate CA has a trust setting included that is used. The first 3684 setting is used: whether to trust (e.g., -addtrust option to the x509 3685 utility) or reject. 3686 [Steve Henson] 3687 3688 *) Add -trusted_first option which attempts to find certificates in the 3689 trusted store even if an untrusted chain is also supplied. 3690 [Steve Henson] 3691 3692 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 3693 platform support for Linux and Android. 3694 [Andy Polyakov] 3695 3696 *) Support for linux-x32, ILP32 environment in x86_64 framework. 3697 [Andy Polyakov] 3698 3699 *) Experimental multi-implementation support for FIPS capable OpenSSL. 3700 When in FIPS mode the approved implementations are used as normal, 3701 when not in FIPS mode the internal unapproved versions are used instead. 3702 This means that the FIPS capable OpenSSL isn't forced to use the 3703 (often lower performance) FIPS implementations outside FIPS mode. 3704 [Steve Henson] 3705 3706 *) Transparently support X9.42 DH parameters when calling 3707 PEM_read_bio_DHparameters. This means existing applications can handle 3708 the new parameter format automatically. 3709 [Steve Henson] 3710 3711 *) Initial experimental support for X9.42 DH parameter format: mainly 3712 to support use of 'q' parameter for RFC5114 parameters. 3713 [Steve Henson] 3714 3715 *) Add DH parameters from RFC5114 including test data to dhtest. 3716 [Steve Henson] 3717 3718 *) Support for automatic EC temporary key parameter selection. If enabled 3719 the most preferred EC parameters are automatically used instead of 3720 hardcoded fixed parameters. Now a server just has to call: 3721 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 3722 support ECDH and use the most appropriate parameters. 3723 [Steve Henson] 3724 3725 *) Enhance and tidy EC curve and point format TLS extension code. Use 3726 static structures instead of allocation if default values are used. 3727 New ctrls to set curves we wish to support and to retrieve shared curves. 3728 Print out shared curves in s_server. New options to s_server and s_client 3729 to set list of supported curves. 3730 [Steve Henson] 3731 3732 *) New ctrls to retrieve supported signature algorithms and 3733 supported curve values as an array of NIDs. Extend openssl utility 3734 to print out received values. 3735 [Steve Henson] 3736 3737 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 3738 between NIDs and the more common NIST names such as "P-256". Enhance 3739 ecparam utility and ECC method to recognise the NIST names for curves. 3740 [Steve Henson] 3741 3742 *) Enhance SSL/TLS certificate chain handling to support different 3743 chains for each certificate instead of one chain in the parent SSL_CTX. 3744 [Steve Henson] 3745 3746 *) Support for fixed DH ciphersuite client authentication: where both 3747 server and client use DH certificates with common parameters. 3748 [Steve Henson] 3749 3750 *) Support for fixed DH ciphersuites: those requiring DH server 3751 certificates. 3752 [Steve Henson] 3753 3754 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of 3755 the certificate. 3756 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 3757 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 3758 X509_CINF_get_signature were reverted post internal team review. 3759 3760 Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 3761 3762 *) Build fixes for the Windows and OpenVMS platforms 3763 [Matt Caswell and Richard Levitte] 3764 3765 Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 3766 3767 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 3768 message can cause a segmentation fault in OpenSSL due to a NULL pointer 3769 dereference. This could lead to a Denial Of Service attack. Thanks to 3770 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 3771 (CVE-2014-3571) 3772 [Steve Henson] 3773 3774 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 3775 dtls1_buffer_record function under certain conditions. In particular this 3776 could occur if an attacker sent repeated DTLS records with the same 3777 sequence number but for the next epoch. The memory leak could be exploited 3778 by an attacker in a Denial of Service attack through memory exhaustion. 3779 Thanks to Chris Mueller for reporting this issue. 3780 (CVE-2015-0206) 3781 [Matt Caswell] 3782 3783 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 3784 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 3785 method would be set to NULL which could later result in a NULL pointer 3786 dereference. Thanks to Frank Schmirler for reporting this issue. 3787 (CVE-2014-3569) 3788 [Kurt Roeckx] 3789 3790 *) Abort handshake if server key exchange message is omitted for ephemeral 3791 ECDH ciphersuites. 3792 3793 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 3794 reporting this issue. 3795 (CVE-2014-3572) 3796 [Steve Henson] 3797 3798 *) Remove non-export ephemeral RSA code on client and server. This code 3799 violated the TLS standard by allowing the use of temporary RSA keys in 3800 non-export ciphersuites and could be used by a server to effectively 3801 downgrade the RSA key length used to a value smaller than the server 3802 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 3803 INRIA or reporting this issue. 3804 (CVE-2015-0204) 3805 [Steve Henson] 3806 3807 *) Fixed issue where DH client certificates are accepted without verification. 3808 An OpenSSL server will accept a DH certificate for client authentication 3809 without the certificate verify message. This effectively allows a client to 3810 authenticate without the use of a private key. This only affects servers 3811 which trust a client certificate authority which issues certificates 3812 containing DH keys: these are extremely rare and hardly ever encountered. 3813 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 3814 this issue. 3815 (CVE-2015-0205) 3816 [Steve Henson] 3817 3818 *) Ensure that the session ID context of an SSL is updated when its 3819 SSL_CTX is updated via SSL_set_SSL_CTX. 3820 3821 The session ID context is typically set from the parent SSL_CTX, 3822 and can vary with the CTX. 3823 [Adam Langley] 3824 3825 *) Fix various certificate fingerprint issues. 3826 3827 By using non-DER or invalid encodings outside the signed portion of a 3828 certificate the fingerprint can be changed without breaking the signature. 3829 Although no details of the signed portion of the certificate can be changed 3830 this can cause problems with some applications: e.g. those using the 3831 certificate fingerprint for blacklists. 3832 3833 1. Reject signatures with non zero unused bits. 3834 3835 If the BIT STRING containing the signature has non zero unused bits reject 3836 the signature. All current signature algorithms require zero unused bits. 3837 3838 2. Check certificate algorithm consistency. 3839 3840 Check the AlgorithmIdentifier inside TBS matches the one in the 3841 certificate signature. NB: this will result in signature failure 3842 errors for some broken certificates. 3843 3844 Thanks to Konrad Kraszewski from Google for reporting this issue. 3845 3846 3. Check DSA/ECDSA signatures use DER. 3847 3848 Re-encode DSA/ECDSA signatures and compare with the original received 3849 signature. Return an error if there is a mismatch. 3850 3851 This will reject various cases including garbage after signature 3852 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 3853 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 3854 (negative or with leading zeroes). 3855 3856 Further analysis was conducted and fixes were developed by Stephen Henson 3857 of the OpenSSL core team. 3858 3859 (CVE-2014-8275) 3860 [Steve Henson] 3861 3862 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 3863 results on some platforms, including x86_64. This bug occurs at random 3864 with a very low probability, and is not known to be exploitable in any 3865 way, though its exact impact is difficult to determine. Thanks to Pieter 3866 Wuille (Blockstream) who reported this issue and also suggested an initial 3867 fix. Further analysis was conducted by the OpenSSL development team and 3868 Adam Langley of Google. The final fix was developed by Andy Polyakov of 3869 the OpenSSL core team. 3870 (CVE-2014-3570) 3871 [Andy Polyakov] 3872 3873 *) Do not resume sessions on the server if the negotiated protocol 3874 version does not match the session's version. Resuming with a different 3875 version, while not strictly forbidden by the RFC, is of questionable 3876 sanity and breaks all known clients. 3877 [David Benjamin, Emilia Käsper] 3878 3879 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject 3880 early CCS messages during renegotiation. (Note that because 3881 renegotiation is encrypted, this early CCS was not exploitable.) 3882 [Emilia Käsper] 3883 3884 *) Tighten client-side session ticket handling during renegotiation: 3885 ensure that the client only accepts a session ticket if the server sends 3886 the extension anew in the ServerHello. Previously, a TLS client would 3887 reuse the old extension state and thus accept a session ticket if one was 3888 announced in the initial ServerHello. 3889 3890 Similarly, ensure that the client requires a session ticket if one 3891 was advertised in the ServerHello. Previously, a TLS client would 3892 ignore a missing NewSessionTicket message. 3893 [Emilia Käsper] 3894 3895 Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 3896 3897 *) SRTP Memory Leak. 3898 3899 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 3900 sends a carefully crafted handshake message, to cause OpenSSL to fail 3901 to free up to 64k of memory causing a memory leak. This could be 3902 exploited in a Denial Of Service attack. This issue affects OpenSSL 3903 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 3904 whether SRTP is used or configured. Implementations of OpenSSL that 3905 have been compiled with OPENSSL_NO_SRTP defined are not affected. 3906 3907 The fix was developed by the OpenSSL team. 3908 (CVE-2014-3513) 3909 [OpenSSL team] 3910 3911 *) Session Ticket Memory Leak. 3912 3913 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 3914 integrity of that ticket is first verified. In the event of a session 3915 ticket integrity check failing, OpenSSL will fail to free memory 3916 causing a memory leak. By sending a large number of invalid session 3917 tickets an attacker could exploit this issue in a Denial Of Service 3918 attack. 3919 (CVE-2014-3567) 3920 [Steve Henson] 3921 3922 *) Build option no-ssl3 is incomplete. 3923 3924 When OpenSSL is configured with "no-ssl3" as a build option, servers 3925 could accept and complete a SSL 3.0 handshake, and clients could be 3926 configured to send them. 3927 (CVE-2014-3568) 3928 [Akamai and the OpenSSL team] 3929 3930 *) Add support for TLS_FALLBACK_SCSV. 3931 Client applications doing fallback retries should call 3932 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 3933 (CVE-2014-3566) 3934 [Adam Langley, Bodo Moeller] 3935 3936 *) Add additional DigestInfo checks. 3937 3938 Re-encode DigestInto in DER and check against the original when 3939 verifying RSA signature: this will reject any improperly encoded 3940 DigestInfo structures. 3941 3942 Note: this is a precautionary measure and no attacks are currently known. 3943 3944 [Steve Henson] 3945 3946 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 3947 3948 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 3949 SRP code can be overrun an internal buffer. Add sanity check that 3950 g, A, B < N to SRP code. 3951 3952 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 3953 Group for discovering this issue. 3954 (CVE-2014-3512) 3955 [Steve Henson] 3956 3957 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 3958 TLS 1.0 instead of higher protocol versions when the ClientHello message 3959 is badly fragmented. This allows a man-in-the-middle attacker to force a 3960 downgrade to TLS 1.0 even if both the server and the client support a 3961 higher protocol version, by modifying the client's TLS records. 3962 3963 Thanks to David Benjamin and Adam Langley (Google) for discovering and 3964 researching this issue. 3965 (CVE-2014-3511) 3966 [David Benjamin] 3967 3968 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 3969 to a denial of service attack. A malicious server can crash the client 3970 with a null pointer dereference (read) by specifying an anonymous (EC)DH 3971 ciphersuite and sending carefully crafted handshake messages. 3972 3973 Thanks to Felix Gröbert (Google) for discovering and researching this 3974 issue. 3975 (CVE-2014-3510) 3976 [Emilia Käsper] 3977 3978 *) By sending carefully crafted DTLS packets an attacker could cause openssl 3979 to leak memory. This can be exploited through a Denial of Service attack. 3980 Thanks to Adam Langley for discovering and researching this issue. 3981 (CVE-2014-3507) 3982 [Adam Langley] 3983 3984 *) An attacker can force openssl to consume large amounts of memory whilst 3985 processing DTLS handshake messages. This can be exploited through a 3986 Denial of Service attack. 3987 Thanks to Adam Langley for discovering and researching this issue. 3988 (CVE-2014-3506) 3989 [Adam Langley] 3990 3991 *) An attacker can force an error condition which causes openssl to crash 3992 whilst processing DTLS packets due to memory being freed twice. This 3993 can be exploited through a Denial of Service attack. 3994 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 3995 this issue. 3996 (CVE-2014-3505) 3997 [Adam Langley] 3998 3999 *) If a multithreaded client connects to a malicious server using a resumed 4000 session and the server sends an ec point format extension it could write 4001 up to 255 bytes to freed memory. 4002 4003 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 4004 issue. 4005 (CVE-2014-3509) 4006 [Gabor Tyukasz] 4007 4008 *) A malicious server can crash an OpenSSL client with a null pointer 4009 dereference (read) by specifying an SRP ciphersuite even though it was not 4010 properly negotiated with the client. This can be exploited through a 4011 Denial of Service attack. 4012 4013 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 4014 discovering and researching this issue. 4015 (CVE-2014-5139) 4016 [Steve Henson] 4017 4018 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 4019 X509_name_oneline, X509_name_print_ex et al. to leak some information 4020 from the stack. Applications may be affected if they echo pretty printing 4021 output to the attacker. 4022 4023 Thanks to Ivan Fratric (Google) for discovering this issue. 4024 (CVE-2014-3508) 4025 [Emilia Käsper, and Steve Henson] 4026 4027 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 4028 for corner cases. (Certain input points at infinity could lead to 4029 bogus results, with non-infinity inputs mapped to infinity too.) 4030 [Bodo Moeller] 4031 4032 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 4033 4034 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 4035 handshake can force the use of weak keying material in OpenSSL 4036 SSL/TLS clients and servers. 4037 4038 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 4039 researching this issue. (CVE-2014-0224) 4040 [KIKUCHI Masashi, Steve Henson] 4041 4042 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 4043 OpenSSL DTLS client the code can be made to recurse eventually crashing 4044 in a DoS attack. 4045 4046 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 4047 (CVE-2014-0221) 4048 [Imre Rad, Steve Henson] 4049 4050 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 4051 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 4052 client or server. This is potentially exploitable to run arbitrary 4053 code on a vulnerable client or server. 4054 4055 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195) 4056 [Jüri Aedla, Steve Henson] 4057 4058 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 4059 are subject to a denial of service attack. 4060 4061 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 4062 this issue. (CVE-2014-3470) 4063 [Felix Gröbert, Ivan Fratric, Steve Henson] 4064 4065 *) Harmonize version and its documentation. -f flag is used to display 4066 compilation flags. 4067 [mancha <mancha1@zoho.com>] 4068 4069 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 4070 in i2d_ECPrivateKey. 4071 [mancha <mancha1@zoho.com>] 4072 4073 *) Fix some double frees. These are not thought to be exploitable. 4074 [mancha <mancha1@zoho.com>] 4075 4076 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 4077 4078 *) A missing bounds check in the handling of the TLS heartbeat extension 4079 can be used to reveal up to 64k of memory to a connected client or 4080 server. 4081 4082 Thanks for Neel Mehta of Google Security for discovering this bug and to 4083 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 4084 preparing the fix (CVE-2014-0160) 4085 [Adam Langley, Bodo Moeller] 4086 4087 *) Fix for the attack described in the paper "Recovering OpenSSL 4088 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 4089 by Yuval Yarom and Naomi Benger. Details can be obtained from: 4090 http://eprint.iacr.org/2014/140 4091 4092 Thanks to Yuval Yarom and Naomi Benger for discovering this 4093 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 4094 [Yuval Yarom and Naomi Benger] 4095 4096 *) TLS pad extension: draft-agl-tls-padding-03 4097 4098 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 4099 TLS client Hello record length value would otherwise be > 255 and 4100 less that 512 pad with a dummy extension containing zeroes so it 4101 is at least 512 bytes long. 4102 4103 [Adam Langley, Steve Henson] 4104 4105 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 4106 4107 *) Fix for TLS record tampering bug. A carefully crafted invalid 4108 handshake could crash OpenSSL with a NULL pointer exception. 4109 Thanks to Anton Johansson for reporting this issues. 4110 (CVE-2013-4353) 4111 4112 *) Keep original DTLS digest and encryption contexts in retransmission 4113 structures so we can use the previous session parameters if they need 4114 to be resent. (CVE-2013-6450) 4115 [Steve Henson] 4116 4117 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 4118 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 4119 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 4120 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 4121 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 4122 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 4123 [Rob Stradling, Adam Langley] 4124 4125 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 4126 4127 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 4128 supporting platforms or when small records were transferred. 4129 [Andy Polyakov, Steve Henson] 4130 4131 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 4132 4133 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 4134 4135 This addresses the flaw in CBC record processing discovered by 4136 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 4137 at: http://www.isg.rhul.ac.uk/tls/ 4138 4139 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 4140 Security Group at Royal Holloway, University of London 4141 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 4142 Emilia Käsper for the initial patch. 4143 (CVE-2013-0169) 4144 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 4145 4146 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 4147 ciphersuites which can be exploited in a denial of service attack. 4148 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 4149 and detecting this bug and to Wolfgang Ettlinger 4150 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 4151 (CVE-2012-2686) 4152 [Adam Langley] 4153 4154 *) Return an error when checking OCSP signatures when key is NULL. 4155 This fixes a DoS attack. (CVE-2013-0166) 4156 [Steve Henson] 4157 4158 *) Make openssl verify return errors. 4159 [Chris Palmer <palmer@google.com> and Ben Laurie] 4160 4161 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 4162 the right response is stapled. Also change SSL_get_certificate() 4163 so it returns the certificate actually sent. 4164 See http://rt.openssl.org/Ticket/Display.html?id=2836. 4165 [Rob Stradling <rob.stradling@comodo.com>] 4166 4167 *) Fix possible deadlock when decoding public keys. 4168 [Steve Henson] 4169 4170 *) Don't use TLS 1.0 record version number in initial client hello 4171 if renegotiating. 4172 [Steve Henson] 4173 4174 Changes between 1.0.1b and 1.0.1c [10 May 2012] 4175 4176 *) Sanity check record length before skipping explicit IV in TLS 4177 1.2, 1.1 and DTLS to fix DoS attack. 4178 4179 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 4180 fuzzing as a service testing platform. 4181 (CVE-2012-2333) 4182 [Steve Henson] 4183 4184 *) Initialise tkeylen properly when encrypting CMS messages. 4185 Thanks to Solar Designer of Openwall for reporting this issue. 4186 [Steve Henson] 4187 4188 *) In FIPS mode don't try to use composite ciphers as they are not 4189 approved. 4190 [Steve Henson] 4191 4192 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 4193 4194 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 4195 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 4196 mean any application compiled against OpenSSL 1.0.0 headers setting 4197 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling 4198 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 4199 0x10000000L Any application which was previously compiled against 4200 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 4201 will need to be recompiled as a result. Letting be results in 4202 inability to disable specifically TLS 1.1 and in client context, 4203 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 4204 [Steve Henson] 4205 4206 *) In order to ensure interoperability SSL_OP_NO_protocolX does not 4207 disable just protocol X, but all protocols above X *if* there are 4208 protocols *below* X still enabled. In more practical terms it means 4209 that if application wants to disable TLS1.0 in favor of TLS1.1 and 4210 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 4211 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 4212 client side. 4213 [Andy Polyakov] 4214 4215 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 4216 4217 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 4218 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 4219 in CRYPTO_realloc_clean. 4220 4221 Thanks to Tavis Ormandy, Google Security Team, for discovering this 4222 issue and to Adam Langley <agl@chromium.org> for fixing it. 4223 (CVE-2012-2110) 4224 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 4225 4226 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 4227 [Adam Langley] 4228 4229 *) Workarounds for some broken servers that "hang" if a client hello 4230 record length exceeds 255 bytes. 4231 4232 1. Do not use record version number > TLS 1.0 in initial client 4233 hello: some (but not all) hanging servers will now work. 4234 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 4235 the number of ciphers sent in the client hello. This should be 4236 set to an even number, such as 50, for example by passing: 4237 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 4238 Most broken servers should now work. 4239 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 4240 TLS 1.2 client support entirely. 4241 [Steve Henson] 4242 4243 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 4244 [Andy Polyakov] 4245 4246 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 4247 4248 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 4249 STRING form instead of a DigestInfo. 4250 [Steve Henson] 4251 4252 *) The format used for MDC2 RSA signatures is inconsistent between EVP 4253 and the RSA_sign/RSA_verify functions. This was made more apparent when 4254 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 4255 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 4256 the correct format in RSA_verify so both forms transparently work. 4257 [Steve Henson] 4258 4259 *) Some servers which support TLS 1.0 can choke if we initially indicate 4260 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 4261 encrypted premaster secret. As a workaround use the maximum permitted 4262 client version in client hello, this should keep such servers happy 4263 and still work with previous versions of OpenSSL. 4264 [Steve Henson] 4265 4266 *) Add support for TLS/DTLS heartbeats. 4267 [Robin Seggelmann <seggelmann@fh-muenster.de>] 4268 4269 *) Add support for SCTP. 4270 [Robin Seggelmann <seggelmann@fh-muenster.de>] 4271 4272 *) Improved PRNG seeding for VOS. 4273 [Paul Green <Paul.Green@stratus.com>] 4274 4275 *) Extensive assembler packs updates, most notably: 4276 4277 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 4278 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 4279 - x86_64: bit-sliced AES implementation; 4280 - ARM: NEON support, contemporary platforms optimizations; 4281 - s390x: z196 support; 4282 - *: GHASH and GF(2^m) multiplication implementations; 4283 4284 [Andy Polyakov] 4285 4286 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 4287 (removal of unnecessary code) 4288 [Peter Sylvester <peter.sylvester@edelweb.fr>] 4289 4290 *) Add TLS key material exporter from RFC 5705. 4291 [Eric Rescorla] 4292 4293 *) Add DTLS-SRTP negotiation from RFC 5764. 4294 [Eric Rescorla] 4295 4296 *) Add Next Protocol Negotiation, 4297 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 4298 disabled with a no-npn flag to config or Configure. Code donated 4299 by Google. 4300 [Adam Langley <agl@google.com> and Ben Laurie] 4301 4302 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 4303 NIST-P256, NIST-P521, with constant-time single point multiplication on 4304 typical inputs. Compiler support for the nonstandard type __uint128_t is 4305 required to use this (present in gcc 4.4 and later, for 64-bit builds). 4306 Code made available under Apache License version 2.0. 4307 4308 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 4309 line to include this in your build of OpenSSL, and run "make depend" (or 4310 "make update"). This enables the following EC_METHODs: 4311 4312 EC_GFp_nistp224_method() 4313 EC_GFp_nistp256_method() 4314 EC_GFp_nistp521_method() 4315 4316 EC_GROUP_new_by_curve_name() will automatically use these (while 4317 EC_GROUP_new_curve_GFp() currently prefers the more flexible 4318 implementations). 4319 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)] 4320 4321 *) Use type ossl_ssize_t instead of ssize_t which isn't available on 4322 all platforms. Move ssize_t definition from e_os.h to the public 4323 header file e_os2.h as it now appears in public header file cms.h 4324 [Steve Henson] 4325 4326 *) New -sigopt option to the ca, req and x509 utilities. Additional 4327 signature parameters can be passed using this option and in 4328 particular PSS. 4329 [Steve Henson] 4330 4331 *) Add RSA PSS signing function. This will generate and set the 4332 appropriate AlgorithmIdentifiers for PSS based on those in the 4333 corresponding EVP_MD_CTX structure. No application support yet. 4334 [Steve Henson] 4335 4336 *) Support for companion algorithm specific ASN1 signing routines. 4337 New function ASN1_item_sign_ctx() signs a pre-initialised 4338 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 4339 the appropriate parameters. 4340 [Steve Henson] 4341 4342 *) Add new algorithm specific ASN1 verification initialisation function 4343 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 4344 handling will be the same no matter what EVP_PKEY_METHOD is used. 4345 Add a PSS handler to support verification of PSS signatures: checked 4346 against a number of sample certificates. 4347 [Steve Henson] 4348 4349 *) Add signature printing for PSS. Add PSS OIDs. 4350 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 4351 4352 *) Add algorithm specific signature printing. An individual ASN1 method 4353 can now print out signatures instead of the standard hex dump. 4354 4355 More complex signatures (e.g. PSS) can print out more meaningful 4356 information. Include DSA version that prints out the signature 4357 parameters r, s. 4358 [Steve Henson] 4359 4360 *) Password based recipient info support for CMS library: implementing 4361 RFC3211. 4362 [Steve Henson] 4363 4364 *) Split password based encryption into PBES2 and PBKDF2 functions. This 4365 neatly separates the code into cipher and PBE sections and is required 4366 for some algorithms that split PBES2 into separate pieces (such as 4367 password based CMS). 4368 [Steve Henson] 4369 4370 *) Session-handling fixes: 4371 - Fix handling of connections that are resuming with a session ID, 4372 but also support Session Tickets. 4373 - Fix a bug that suppressed issuing of a new ticket if the client 4374 presented a ticket with an expired session. 4375 - Try to set the ticket lifetime hint to something reasonable. 4376 - Make tickets shorter by excluding irrelevant information. 4377 - On the client side, don't ignore renewed tickets. 4378 [Adam Langley, Bodo Moeller (Google)] 4379 4380 *) Fix PSK session representation. 4381 [Bodo Moeller] 4382 4383 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 4384 4385 This work was sponsored by Intel. 4386 [Andy Polyakov] 4387 4388 *) Add GCM support to TLS library. Some custom code is needed to split 4389 the IV between the fixed (from PRF) and explicit (from TLS record) 4390 portions. This adds all GCM ciphersuites supported by RFC5288 and 4391 RFC5289. Generalise some AES* cipherstrings to include GCM and 4392 add a special AESGCM string for GCM only. 4393 [Steve Henson] 4394 4395 *) Expand range of ctrls for AES GCM. Permit setting invocation 4396 field on decrypt and retrieval of invocation field only on encrypt. 4397 [Steve Henson] 4398 4399 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 4400 As required by RFC5289 these ciphersuites cannot be used if for 4401 versions of TLS earlier than 1.2. 4402 [Steve Henson] 4403 4404 *) For FIPS capable OpenSSL interpret a NULL default public key method 4405 as unset and return the appropriate default but do *not* set the default. 4406 This means we can return the appropriate method in applications that 4407 switch between FIPS and non-FIPS modes. 4408 [Steve Henson] 4409 4410 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 4411 ENGINE is used then we cannot handle that in the FIPS module so we 4412 keep original code iff non-FIPS operations are allowed. 4413 [Steve Henson] 4414 4415 *) Add -attime option to openssl utilities. 4416 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 4417 4418 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 4419 [Steve Henson] 4420 4421 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 4422 FIPS EC methods unconditionally for now. 4423 [Steve Henson] 4424 4425 *) New build option no-ec2m to disable characteristic 2 code. 4426 [Steve Henson] 4427 4428 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 4429 all cases can be covered as some introduce binary incompatibilities. 4430 [Steve Henson] 4431 4432 *) Redirect RSA operations to FIPS module including keygen, 4433 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 4434 [Steve Henson] 4435 4436 *) Add similar low level API blocking to ciphers. 4437 [Steve Henson] 4438 4439 *) Low level digest APIs are not approved in FIPS mode: any attempt 4440 to use these will cause a fatal error. Applications that *really* want 4441 to use them can use the private_* version instead. 4442 [Steve Henson] 4443 4444 *) Redirect cipher operations to FIPS module for FIPS builds. 4445 [Steve Henson] 4446 4447 *) Redirect digest operations to FIPS module for FIPS builds. 4448 [Steve Henson] 4449 4450 *) Update build system to add "fips" flag which will link in fipscanister.o 4451 for static and shared library builds embedding a signature if needed. 4452 [Steve Henson] 4453 4454 *) Output TLS supported curves in preference order instead of numerical 4455 order. This is currently hardcoded for the highest order curves first. 4456 This should be configurable so applications can judge speed vs strength. 4457 [Steve Henson] 4458 4459 *) Add TLS v1.2 server support for client authentication. 4460 [Steve Henson] 4461 4462 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 4463 and enable MD5. 4464 [Steve Henson] 4465 4466 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 4467 FIPS modules versions. 4468 [Steve Henson] 4469 4470 *) Add TLS v1.2 client side support for client authentication. Keep cache 4471 of handshake records longer as we don't know the hash algorithm to use 4472 until after the certificate request message is received. 4473 [Steve Henson] 4474 4475 *) Initial TLS v1.2 client support. Add a default signature algorithms 4476 extension including all the algorithms we support. Parse new signature 4477 format in client key exchange. Relax some ECC signing restrictions for 4478 TLS v1.2 as indicated in RFC5246. 4479 [Steve Henson] 4480 4481 *) Add server support for TLS v1.2 signature algorithms extension. Switch 4482 to new signature format when needed using client digest preference. 4483 All server ciphersuites should now work correctly in TLS v1.2. No client 4484 support yet and no support for client certificates. 4485 [Steve Henson] 4486 4487 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 4488 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 4489 ciphersuites. At present only RSA key exchange ciphersuites work with 4490 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 4491 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 4492 and version checking. 4493 [Steve Henson] 4494 4495 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 4496 with this defined it will not be affected by any changes to ssl internal 4497 structures. Add several utility functions to allow openssl application 4498 to work with OPENSSL_NO_SSL_INTERN defined. 4499 [Steve Henson] 4500 4501 *) A long standing patch to add support for SRP from EdelWeb (Peter 4502 Sylvester and Christophe Renou) was integrated. 4503 [Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 4504 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 4505 Ben Laurie] 4506 4507 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 4508 [Steve Henson] 4509 4510 *) Permit abbreviated handshakes when renegotiating using the function 4511 SSL_renegotiate_abbreviated(). 4512 [Robin Seggelmann <seggelmann@fh-muenster.de>] 4513 4514 *) Add call to ENGINE_register_all_complete() to 4515 ENGINE_load_builtin_engines(), so some implementations get used 4516 automatically instead of needing explicit application support. 4517 [Steve Henson] 4518 4519 *) Add support for TLS key exporter as described in RFC5705. 4520 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 4521 4522 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 4523 a few changes are required: 4524 4525 Add SSL_OP_NO_TLSv1_1 flag. 4526 Add TLSv1_1 methods. 4527 Update version checking logic to handle version 1.1. 4528 Add explicit IV handling (ported from DTLS code). 4529 Add command line options to s_client/s_server. 4530 [Steve Henson] 4531 4532 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 4533 4534 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 4535 in CMS and PKCS7 code. When RSA decryption fails use a random key for 4536 content decryption and always return the same error. Note: this attack 4537 needs on average 2^20 messages so it only affects automated senders. The 4538 old behaviour can be re-enabled in the CMS code by setting the 4539 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 4540 an MMA defence is not necessary. 4541 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 4542 this issue. (CVE-2012-0884) 4543 [Steve Henson] 4544 4545 *) Fix CVE-2011-4619: make sure we really are receiving a 4546 client hello before rejecting multiple SGC restarts. Thanks to 4547 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 4548 [Steve Henson] 4549 4550 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 4551 4552 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 4553 Thanks to Antonio Martin, Enterprise Secure Access Research and 4554 Development, Cisco Systems, Inc. for discovering this bug and 4555 preparing a fix. (CVE-2012-0050) 4556 [Antonio Martin] 4557 4558 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 4559 4560 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 4561 of the Vaudenay padding oracle attack on CBC mode encryption 4562 which enables an efficient plaintext recovery attack against 4563 the OpenSSL implementation of DTLS. Their attack exploits timing 4564 differences arising during decryption processing. A research 4565 paper describing this attack can be found at: 4566 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 4567 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 4568 Security Group at Royal Holloway, University of London 4569 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 4570 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 4571 for preparing the fix. (CVE-2011-4108) 4572 [Robin Seggelmann, Michael Tuexen] 4573 4574 *) Clear bytes used for block padding of SSL 3.0 records. 4575 (CVE-2011-4576) 4576 [Adam Langley (Google)] 4577 4578 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 4579 Kadianakis <desnacked@gmail.com> for discovering this issue and 4580 Adam Langley for preparing the fix. (CVE-2011-4619) 4581 [Adam Langley (Google)] 4582 4583 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 4584 [Andrey Kulikov <amdeich@gmail.com>] 4585 4586 *) Prevent malformed RFC3779 data triggering an assertion failure. 4587 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 4588 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 4589 [Rob Austein <sra@hactrn.net>] 4590 4591 *) Improved PRNG seeding for VOS. 4592 [Paul Green <Paul.Green@stratus.com>] 4593 4594 *) Fix ssl_ciph.c set-up race. 4595 [Adam Langley (Google)] 4596 4597 *) Fix spurious failures in ecdsatest.c. 4598 [Emilia Käsper (Google)] 4599 4600 *) Fix the BIO_f_buffer() implementation (which was mixing different 4601 interpretations of the '..._len' fields). 4602 [Adam Langley (Google)] 4603 4604 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 4605 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 4606 threads won't reuse the same blinding coefficients. 4607 4608 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 4609 lock to call BN_BLINDING_invert_ex, and avoids one use of 4610 BN_BLINDING_update for each BN_BLINDING structure (previously, 4611 the last update always remained unused). 4612 [Emilia Käsper (Google)] 4613 4614 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 4615 [Bob Buckholz (Google)] 4616 4617 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 4618 4619 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 4620 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 4621 [Kaspar Brand <ossl@velox.ch>] 4622 4623 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 4624 for multi-threaded use of ECDH. (CVE-2011-3210) 4625 [Adam Langley (Google)] 4626 4627 *) Fix x509_name_ex_d2i memory leak on bad inputs. 4628 [Bodo Moeller] 4629 4630 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 4631 signature public key algorithm by using OID xref utilities instead. 4632 Before this you could only use some ECC ciphersuites with SHA1 only. 4633 [Steve Henson] 4634 4635 *) Add protection against ECDSA timing attacks as mentioned in the paper 4636 by Billy Bob Brumley and Nicola Tuveri, see: 4637 4638 http://eprint.iacr.org/2011/232.pdf 4639 4640 [Billy Bob Brumley and Nicola Tuveri] 4641 4642 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 4643 4644 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 4645 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 4646 4647 *) Fix bug in string printing code: if *any* escaping is enabled we must 4648 escape the escape character (backslash) or the resulting string is 4649 ambiguous. 4650 [Steve Henson] 4651 4652 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 4653 4654 *) Disable code workaround for ancient and obsolete Netscape browsers 4655 and servers: an attacker can use it in a ciphersuite downgrade attack. 4656 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 4657 [Steve Henson] 4658 4659 *) Fixed J-PAKE implementation error, originally discovered by 4660 Sebastien Martini, further info and confirmation from Stefan 4661 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 4662 [Ben Laurie] 4663 4664 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 4665 4666 *) Fix extension code to avoid race conditions which can result in a buffer 4667 overrun vulnerability: resumed sessions must not be modified as they can 4668 be shared by multiple threads. CVE-2010-3864 4669 [Steve Henson] 4670 4671 *) Fix WIN32 build system to correctly link an ENGINE directory into 4672 a DLL. 4673 [Steve Henson] 4674 4675 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 4676 4677 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 4678 (CVE-2010-1633) 4679 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 4680 4681 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 4682 4683 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 4684 context. The operation can be customised via the ctrl mechanism in 4685 case ENGINEs want to include additional functionality. 4686 [Steve Henson] 4687 4688 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 4689 [Steve Henson] 4690 4691 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 4692 output hashes compatible with older versions of OpenSSL. 4693 [Willy Weisz <weisz@vcpc.univie.ac.at>] 4694 4695 *) Fix compression algorithm handling: if resuming a session use the 4696 compression algorithm of the resumed session instead of determining 4697 it from client hello again. Don't allow server to change algorithm. 4698 [Steve Henson] 4699 4700 *) Add load_crls() function to apps tidying load_certs() too. Add option 4701 to verify utility to allow additional CRLs to be included. 4702 [Steve Henson] 4703 4704 *) Update OCSP request code to permit adding custom headers to the request: 4705 some responders need this. 4706 [Steve Henson] 4707 4708 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 4709 correctly. 4710 [Julia Lawall <julia@diku.dk>] 4711 4712 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 4713 needlessly dereferenced structures, used obsolete functions and 4714 didn't handle all updated verify codes correctly. 4715 [Steve Henson] 4716 4717 *) Disable MD2 in the default configuration. 4718 [Steve Henson] 4719 4720 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 4721 indicate the initial BIO being pushed or popped. This makes it possible 4722 to determine whether the BIO is the one explicitly called or as a result 4723 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 4724 it handles reference counts correctly and doesn't zero out the I/O bio 4725 when it is not being explicitly popped. WARNING: applications which 4726 included workarounds for the old buggy behaviour will need to be modified 4727 or they could free up already freed BIOs. 4728 [Steve Henson] 4729 4730 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 4731 renaming to all platforms (within the 0.9.8 branch, this was 4732 done conditionally on Netware platforms to avoid a name clash). 4733 [Guenter <lists@gknw.net>] 4734 4735 *) Add ECDHE and PSK support to DTLS. 4736 [Michael Tuexen <tuexen@fh-muenster.de>] 4737 4738 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 4739 be used on C++. 4740 [Steve Henson] 4741 4742 *) Add "missing" function EVP_MD_flags() (without this the only way to 4743 retrieve a digest flags is by accessing the structure directly. Update 4744 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 4745 or cipher is registered as in the "from" argument. Print out all 4746 registered digests in the dgst usage message instead of manually 4747 attempting to work them out. 4748 [Steve Henson] 4749 4750 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 4751 this allows the use of compression and extensions. Change default cipher 4752 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 4753 by default unless an application cipher string requests it. 4754 [Steve Henson] 4755 4756 *) Alter match criteria in PKCS12_parse(). It used to try to use local 4757 key ids to find matching certificates and keys but some PKCS#12 files 4758 don't follow the (somewhat unwritten) rules and this strategy fails. 4759 Now just gather all certificates together and the first private key 4760 then look for the first certificate that matches the key. 4761 [Steve Henson] 4762 4763 *) Support use of registered digest and cipher names for dgst and cipher 4764 commands instead of having to add each one as a special case. So now 4765 you can do: 4766 4767 openssl sha256 foo 4768 4769 as well as: 4770 4771 openssl dgst -sha256 foo 4772 4773 and this works for ENGINE based algorithms too. 4774 4775 [Steve Henson] 4776 4777 *) Update Gost ENGINE to support parameter files. 4778 [Victor B. Wagner <vitus@cryptocom.ru>] 4779 4780 *) Support GeneralizedTime in ca utility. 4781 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 4782 4783 *) Enhance the hash format used for certificate directory links. The new 4784 form uses the canonical encoding (meaning equivalent names will work 4785 even if they aren't identical) and uses SHA1 instead of MD5. This form 4786 is incompatible with the older format and as a result c_rehash should 4787 be used to rebuild symbolic links. 4788 [Steve Henson] 4789 4790 *) Make PKCS#8 the default write format for private keys, replacing the 4791 traditional format. This form is standardised, more secure and doesn't 4792 include an implicit MD5 dependency. 4793 [Steve Henson] 4794 4795 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 4796 committed to OpenSSL should pass this lot as a minimum. 4797 [Steve Henson] 4798 4799 *) Add session ticket override functionality for use by EAP-FAST. 4800 [Jouni Malinen <j@w1.fi>] 4801 4802 *) Modify HMAC functions to return a value. Since these can be implemented 4803 in an ENGINE errors can occur. 4804 [Steve Henson] 4805 4806 *) Type-checked OBJ_bsearch_ex. 4807 [Ben Laurie] 4808 4809 *) Type-checked OBJ_bsearch. Also some constification necessitated 4810 by type-checking. Still to come: TXT_DB, bsearch(?), 4811 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 4812 CONF_VALUE. 4813 [Ben Laurie] 4814 4815 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 4816 seconds to a tm structure directly, instead of going through OS 4817 specific date routines. This avoids any issues with OS routines such 4818 as the year 2038 bug. New *_adj() functions for ASN1 time structures 4819 and X509_time_adj_ex() to cover the extended range. The existing 4820 X509_time_adj() is still usable and will no longer have any date issues. 4821 [Steve Henson] 4822 4823 *) Delta CRL support. New use deltas option which will attempt to locate 4824 and search any appropriate delta CRLs available. 4825 4826 This work was sponsored by Google. 4827 [Steve Henson] 4828 4829 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 4830 code and add additional score elements. Validate alternate CRL paths 4831 as part of the CRL checking and indicate a new error "CRL path validation 4832 error" in this case. Applications wanting additional details can use 4833 the verify callback and check the new "parent" field. If this is not 4834 NULL CRL path validation is taking place. Existing applications won't 4835 see this because it requires extended CRL support which is off by 4836 default. 4837 4838 This work was sponsored by Google. 4839 [Steve Henson] 4840 4841 *) Support for freshest CRL extension. 4842 4843 This work was sponsored by Google. 4844 [Steve Henson] 4845 4846 *) Initial indirect CRL support. Currently only supported in the CRLs 4847 passed directly and not via lookup. Process certificate issuer 4848 CRL entry extension and lookup CRL entries by bother issuer name 4849 and serial number. Check and process CRL issuer entry in IDP extension. 4850 4851 This work was sponsored by Google. 4852 [Steve Henson] 4853 4854 *) Add support for distinct certificate and CRL paths. The CRL issuer 4855 certificate is validated separately in this case. Only enabled if 4856 an extended CRL support flag is set: this flag will enable additional 4857 CRL functionality in future. 4858 4859 This work was sponsored by Google. 4860 [Steve Henson] 4861 4862 *) Add support for policy mappings extension. 4863 4864 This work was sponsored by Google. 4865 [Steve Henson] 4866 4867 *) Fixes to pathlength constraint, self issued certificate handling, 4868 policy processing to align with RFC3280 and PKITS tests. 4869 4870 This work was sponsored by Google. 4871 [Steve Henson] 4872 4873 *) Support for name constraints certificate extension. DN, email, DNS 4874 and URI types are currently supported. 4875 4876 This work was sponsored by Google. 4877 [Steve Henson] 4878 4879 *) To cater for systems that provide a pointer-based thread ID rather 4880 than numeric, deprecate the current numeric thread ID mechanism and 4881 replace it with a structure and associated callback type. This 4882 mechanism allows a numeric "hash" to be extracted from a thread ID in 4883 either case, and on platforms where pointers are larger than 'long', 4884 mixing is done to help ensure the numeric 'hash' is usable even if it 4885 can't be guaranteed unique. The default mechanism is to use "&errno" 4886 as a pointer-based thread ID to distinguish between threads. 4887 4888 Applications that want to provide their own thread IDs should now use 4889 CRYPTO_THREADID_set_callback() to register a callback that will call 4890 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 4891 4892 Note that ERR_remove_state() is now deprecated, because it is tied 4893 to the assumption that thread IDs are numeric. ERR_remove_state(0) 4894 to free the current thread's error state should be replaced by 4895 ERR_remove_thread_state(NULL). 4896 4897 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 4898 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 4899 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 4900 application was previously providing a numeric thread callback that 4901 was inappropriate for distinguishing threads, then uniqueness might 4902 have been obtained with &errno that happened immediately in the 4903 intermediate development versions of OpenSSL; this is no longer the 4904 case, the numeric thread callback will now override the automatic use 4905 of &errno.) 4906 [Geoff Thorpe, with help from Bodo Moeller] 4907 4908 *) Initial support for different CRL issuing certificates. This covers a 4909 simple case where the self issued certificates in the chain exist and 4910 the real CRL issuer is higher in the existing chain. 4911 4912 This work was sponsored by Google. 4913 [Steve Henson] 4914 4915 *) Removed effectively defunct crypto/store from the build. 4916 [Ben Laurie] 4917 4918 *) Revamp of STACK to provide stronger type-checking. Still to come: 4919 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 4920 ASN1_STRING, CONF_VALUE. 4921 [Ben Laurie] 4922 4923 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 4924 RAM on SSL connections. This option can save about 34k per idle SSL. 4925 [Nick Mathewson] 4926 4927 *) Revamp of LHASH to provide stronger type-checking. Still to come: 4928 STACK, TXT_DB, bsearch, qsort. 4929 [Ben Laurie] 4930 4931 *) Initial support for Cryptographic Message Syntax (aka CMS) based 4932 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 4933 support for data, signedData, compressedData, digestedData and 4934 encryptedData, envelopedData types included. Scripts to check against 4935 RFC4134 examples draft and interop and consistency checks of many 4936 content types and variants. 4937 [Steve Henson] 4938 4939 *) Add options to enc utility to support use of zlib compression BIO. 4940 [Steve Henson] 4941 4942 *) Extend mk1mf to support importing of options and assembly language 4943 files from Configure script, currently only included in VC-WIN32. 4944 The assembly language rules can now optionally generate the source 4945 files from the associated perl scripts. 4946 [Steve Henson] 4947 4948 *) Implement remaining functionality needed to support GOST ciphersuites. 4949 Interop testing has been performed using CryptoPro implementations. 4950 [Victor B. Wagner <vitus@cryptocom.ru>] 4951 4952 *) s390x assembler pack. 4953 [Andy Polyakov] 4954 4955 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 4956 "family." 4957 [Andy Polyakov] 4958 4959 *) Implement Opaque PRF Input TLS extension as specified in 4960 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 4961 official specification yet and no extension type assignment by 4962 IANA exists, this extension (for now) will have to be explicitly 4963 enabled when building OpenSSL by providing the extension number 4964 to use. For example, specify an option 4965 4966 -DTLSEXT_TYPE_opaque_prf_input=0x9527 4967 4968 to the "config" or "Configure" script to enable the extension, 4969 assuming extension number 0x9527 (which is a completely arbitrary 4970 and unofficial assignment based on the MD5 hash of the Internet 4971 Draft). Note that by doing so, you potentially lose 4972 interoperability with other TLS implementations since these might 4973 be using the same extension number for other purposes. 4974 4975 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 4976 opaque PRF input value to use in the handshake. This will create 4977 an internal copy of the length-'len' string at 'src', and will 4978 return non-zero for success. 4979 4980 To get more control and flexibility, provide a callback function 4981 by using 4982 4983 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 4984 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 4985 4986 where 4987 4988 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 4989 void *arg; 4990 4991 Callback function 'cb' will be called in handshakes, and is 4992 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 4993 Argument 'arg' is for application purposes (the value as given to 4994 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 4995 be provided to the callback function). The callback function 4996 has to return non-zero to report success: usually 1 to use opaque 4997 PRF input just if possible, or 2 to enforce use of the opaque PRF 4998 input. In the latter case, the library will abort the handshake 4999 if opaque PRF input is not successfully negotiated. 5000 5001 Arguments 'peerinput' and 'len' given to the callback function 5002 will always be NULL and 0 in the case of a client. A server will 5003 see the client's opaque PRF input through these variables if 5004 available (NULL and 0 otherwise). Note that if the server 5005 provides an opaque PRF input, the length must be the same as the 5006 length of the client's opaque PRF input. 5007 5008 Note that the callback function will only be called when creating 5009 a new session (session resumption can resume whatever was 5010 previously negotiated), and will not be called in SSL 2.0 5011 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 5012 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 5013 for applications that need to enforce opaque PRF input. 5014 5015 [Bodo Moeller] 5016 5017 *) Update ssl code to support digests other than SHA1+MD5 for handshake 5018 MAC. 5019 5020 [Victor B. Wagner <vitus@cryptocom.ru>] 5021 5022 *) Add RFC4507 support to OpenSSL. This includes the corrections in 5023 RFC4507bis. The encrypted ticket format is an encrypted encoded 5024 SSL_SESSION structure, that way new session features are automatically 5025 supported. 5026 5027 If a client application caches session in an SSL_SESSION structure 5028 support is transparent because tickets are now stored in the encoded 5029 SSL_SESSION. 5030 5031 The SSL_CTX structure automatically generates keys for ticket 5032 protection in servers so again support should be possible 5033 with no application modification. 5034 5035 If a client or server wishes to disable RFC4507 support then the option 5036 SSL_OP_NO_TICKET can be set. 5037 5038 Add a TLS extension debugging callback to allow the contents of any client 5039 or server extensions to be examined. 5040 5041 This work was sponsored by Google. 5042 [Steve Henson] 5043 5044 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 5045 OpenSSL should now compile cleanly on gcc 4.2 5046 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 5047 5048 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 5049 support including streaming MAC support: this is required for GOST 5050 ciphersuite support. 5051 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 5052 5053 *) Add option -stream to use PKCS#7 streaming in smime utility. New 5054 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 5055 to output in BER and PEM format. 5056 [Steve Henson] 5057 5058 *) Experimental support for use of HMAC via EVP_PKEY interface. This 5059 allows HMAC to be handled via the EVP_DigestSign*() interface. The 5060 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 5061 ENGINE support for HMAC keys which are unextractable. New -mac and 5062 -macopt options to dgst utility. 5063 [Steve Henson] 5064 5065 *) New option -sigopt to dgst utility. Update dgst to use 5066 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 5067 alternative signing parameters such as X9.31 or PSS in the dgst 5068 utility. 5069 [Steve Henson] 5070 5071 *) Change ssl_cipher_apply_rule(), the internal function that does 5072 the work each time a ciphersuite string requests enabling 5073 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 5074 removing ("!foo+bar") a class of ciphersuites: Now it maintains 5075 the order of disabled ciphersuites such that those ciphersuites 5076 that most recently went from enabled to disabled not only stay 5077 in order with respect to each other, but also have higher priority 5078 than other disabled ciphersuites the next time ciphersuites are 5079 enabled again. 5080 5081 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 5082 the same ciphersuites as with "HIGH" alone, but in a specific 5083 order where the PSK ciphersuites come first (since they are the 5084 most recently disabled ciphersuites when "HIGH" is parsed). 5085 5086 Also, change ssl_create_cipher_list() (using this new 5087 functionality) such that between otherwise identical 5088 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in 5089 the default order. 5090 [Bodo Moeller] 5091 5092 *) Change ssl_create_cipher_list() so that it automatically 5093 arranges the ciphersuites in reasonable order before starting 5094 to process the rule string. Thus, the definition for "DEFAULT" 5095 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 5096 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 5097 This makes it much easier to arrive at a reasonable default order 5098 in applications for which anonymous ciphers are OK (meaning 5099 that you can't actually use DEFAULT). 5100 [Bodo Moeller; suggested by Victor Duchovni] 5101 5102 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 5103 processing) into multiple integers instead of setting 5104 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 5105 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 5106 (These masks as well as the individual bit definitions are hidden 5107 away into the non-exported interface ssl/ssl_locl.h, so this 5108 change to the definition of the SSL_CIPHER structure shouldn't 5109 affect applications.) This give us more bits for each of these 5110 categories, so there is no longer a need to coagulate AES128 and 5111 AES256 into a single algorithm bit, and to coagulate Camellia128 5112 and Camellia256 into a single algorithm bit, which has led to all 5113 kinds of kludges. 5114 5115 Thus, among other things, the kludge introduced in 0.9.7m and 5116 0.9.8e for masking out AES256 independently of AES128 or masking 5117 out Camellia256 independently of AES256 is not needed here in 0.9.9. 5118 5119 With the change, we also introduce new ciphersuite aliases that 5120 so far were missing: "AES128", "AES256", "CAMELLIA128", and 5121 "CAMELLIA256". 5122 [Bodo Moeller] 5123 5124 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 5125 Use the leftmost N bytes of the signature input if the input is 5126 larger than the prime q (with N being the size in bytes of q). 5127 [Nils Larsch] 5128 5129 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 5130 it yet and it is largely untested. 5131 [Steve Henson] 5132 5133 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 5134 [Nils Larsch] 5135 5136 *) Initial incomplete changes to avoid need for function casts in OpenSSL 5137 some compilers (gcc 4.2 and later) reject their use. Safestack is 5138 reimplemented. Update ASN1 to avoid use of legacy functions. 5139 [Steve Henson] 5140 5141 *) Win32/64 targets are linked with Winsock2. 5142 [Andy Polyakov] 5143 5144 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 5145 to external functions. This can be used to increase CRL handling 5146 efficiency especially when CRLs are very large by (for example) storing 5147 the CRL revoked certificates in a database. 5148 [Steve Henson] 5149 5150 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 5151 new CRLs added to a directory can be used. New command line option 5152 -verify_return_error to s_client and s_server. This causes real errors 5153 to be returned by the verify callback instead of carrying on no matter 5154 what. This reflects the way a "real world" verify callback would behave. 5155 [Steve Henson] 5156 5157 *) GOST engine, supporting several GOST algorithms and public key formats. 5158 Kindly donated by Cryptocom. 5159 [Cryptocom] 5160 5161 *) Partial support for Issuing Distribution Point CRL extension. CRLs 5162 partitioned by DP are handled but no indirect CRL or reason partitioning 5163 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 5164 selected via a scoring technique which handles IDP and AKID in CRLs. 5165 [Steve Henson] 5166 5167 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 5168 will ultimately be used for all verify operations: this will remove the 5169 X509_STORE dependency on certificate verification and allow alternative 5170 lookup methods. X509_STORE based implementations of these two callbacks. 5171 [Steve Henson] 5172 5173 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 5174 Modify get_crl() to find a valid (unexpired) CRL if possible. 5175 [Steve Henson] 5176 5177 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 5178 this would be called X509_CRL_cmp() but that name is already used by 5179 a function that just compares CRL issuer names. Cache several CRL 5180 extensions in X509_CRL structure and cache CRLDP in X509. 5181 [Steve Henson] 5182 5183 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 5184 this maps equivalent X509_NAME structures into a consistent structure. 5185 Name comparison can then be performed rapidly using memcmp(). 5186 [Steve Henson] 5187 5188 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 5189 utility. 5190 [Steve Henson] 5191 5192 *) Allow digests to supply their own micalg string for S/MIME type using 5193 the ctrl EVP_MD_CTRL_MICALG. 5194 [Steve Henson] 5195 5196 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 5197 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 5198 ctrl. It can then customise the structure before and/or after signing 5199 if necessary. 5200 [Steve Henson] 5201 5202 *) New function OBJ_add_sigid() to allow application defined signature OIDs 5203 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 5204 to free up any added signature OIDs. 5205 [Steve Henson] 5206 5207 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 5208 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 5209 digest and cipher tables. New options added to openssl utility: 5210 list-message-digest-algorithms and list-cipher-algorithms. 5211 [Steve Henson] 5212 5213 *) Change the array representation of binary polynomials: the list 5214 of degrees of non-zero coefficients is now terminated with -1. 5215 Previously it was terminated with 0, which was also part of the 5216 value; thus, the array representation was not applicable to 5217 polynomials where t^0 has coefficient zero. This change makes 5218 the array representation useful in a more general context. 5219 [Douglas Stebila] 5220 5221 *) Various modifications and fixes to SSL/TLS cipher string 5222 handling. For ECC, the code now distinguishes between fixed ECDH 5223 with RSA certificates on the one hand and with ECDSA certificates 5224 on the other hand, since these are separate ciphersuites. The 5225 unused code for Fortezza ciphersuites has been removed. 5226 5227 For consistency with EDH, ephemeral ECDH is now called "EECDH" 5228 (not "ECDHE"). For consistency with the code for DH 5229 certificates, use of ECDH certificates is now considered ECDH 5230 authentication, not RSA or ECDSA authentication (the latter is 5231 merely the CA's signing algorithm and not actively used in the 5232 protocol). 5233 5234 The temporary ciphersuite alias "ECCdraft" is no longer 5235 available, and ECC ciphersuites are no longer excluded from "ALL" 5236 and "DEFAULT". The following aliases now exist for RFC 4492 5237 ciphersuites, most of these by analogy with the DH case: 5238 5239 kECDHr - ECDH cert, signed with RSA 5240 kECDHe - ECDH cert, signed with ECDSA 5241 kECDH - ECDH cert (signed with either RSA or ECDSA) 5242 kEECDH - ephemeral ECDH 5243 ECDH - ECDH cert or ephemeral ECDH 5244 5245 aECDH - ECDH cert 5246 aECDSA - ECDSA cert 5247 ECDSA - ECDSA cert 5248 5249 AECDH - anonymous ECDH 5250 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 5251 5252 [Bodo Moeller] 5253 5254 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 5255 Use correct micalg parameters depending on digest(s) in signed message. 5256 [Steve Henson] 5257 5258 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 5259 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 5260 [Steve Henson] 5261 5262 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 5263 an engine to register a method. Add ENGINE lookups for methods and 5264 functional reference processing. 5265 [Steve Henson] 5266 5267 *) New functions EVP_Digest{Sign,Verify)*. These are enhanced versions of 5268 EVP_{Sign,Verify}* which allow an application to customise the signature 5269 process. 5270 [Steve Henson] 5271 5272 *) New -resign option to smime utility. This adds one or more signers 5273 to an existing PKCS#7 signedData structure. Also -md option to use an 5274 alternative message digest algorithm for signing. 5275 [Steve Henson] 5276 5277 *) Tidy up PKCS#7 routines and add new functions to make it easier to 5278 create PKCS7 structures containing multiple signers. Update smime 5279 application to support multiple signers. 5280 [Steve Henson] 5281 5282 *) New -macalg option to pkcs12 utility to allow setting of an alternative 5283 digest MAC. 5284 [Steve Henson] 5285 5286 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 5287 Reorganize PBE internals to lookup from a static table using NIDs, 5288 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 5289 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 5290 PRF which will be automatically used with PBES2. 5291 [Steve Henson] 5292 5293 *) Replace the algorithm specific calls to generate keys in "req" with the 5294 new API. 5295 [Steve Henson] 5296 5297 *) Update PKCS#7 enveloped data routines to use new API. This is now 5298 supported by any public key method supporting the encrypt operation. A 5299 ctrl is added to allow the public key algorithm to examine or modify 5300 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 5301 a no op. 5302 [Steve Henson] 5303 5304 *) Add a ctrl to asn1 method to allow a public key algorithm to express 5305 a default digest type to use. In most cases this will be SHA1 but some 5306 algorithms (such as GOST) need to specify an alternative digest. The 5307 return value indicates how strong the preference is 1 means optional and 5308 2 is mandatory (that is it is the only supported type). Modify 5309 ASN1_item_sign() to accept a NULL digest argument to indicate it should 5310 use the default md. Update openssl utilities to use the default digest 5311 type for signing if it is not explicitly indicated. 5312 [Steve Henson] 5313 5314 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 5315 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 5316 signing method from the key type. This effectively removes the link 5317 between digests and public key types. 5318 [Steve Henson] 5319 5320 *) Add an OID cross reference table and utility functions. Its purpose is to 5321 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 5322 rsaEncryption. This will allow some of the algorithm specific hackery 5323 needed to use the correct OID to be removed. 5324 [Steve Henson] 5325 5326 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 5327 structures for PKCS7_sign(). They are now set up by the relevant public 5328 key ASN1 method. 5329 [Steve Henson] 5330 5331 *) Add provisional EC pkey method with support for ECDSA and ECDH. 5332 [Steve Henson] 5333 5334 *) Add support for key derivation (agreement) in the API, DH method and 5335 pkeyutl. 5336 [Steve Henson] 5337 5338 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 5339 public and private key formats. As a side effect these add additional 5340 command line functionality not previously available: DSA signatures can be 5341 generated and verified using pkeyutl and DH key support and generation in 5342 pkey, genpkey. 5343 [Steve Henson] 5344 5345 *) BeOS support. 5346 [Oliver Tappe <zooey@hirschkaefer.de>] 5347 5348 *) New make target "install_html_docs" installs HTML renditions of the 5349 manual pages. 5350 [Oliver Tappe <zooey@hirschkaefer.de>] 5351 5352 *) New utility "genpkey" this is analogous to "genrsa" etc except it can 5353 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 5354 support key and parameter generation and add initial key generation 5355 functionality for RSA. 5356 [Steve Henson] 5357 5358 *) Add functions for main EVP_PKEY_method operations. The undocumented 5359 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 5360 EVP_PKEY_{encrypt,decrypt}_old. 5361 [Steve Henson] 5362 5363 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 5364 key API, doesn't do much yet. 5365 [Steve Henson] 5366 5367 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 5368 public key algorithms. New option to openssl utility: 5369 "list-public-key-algorithms" to print out info. 5370 [Steve Henson] 5371 5372 *) Implement the Supported Elliptic Curves Extension for 5373 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 5374 [Douglas Stebila] 5375 5376 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 5377 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 5378 [Steve Henson] 5379 5380 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 5381 utilities such as rsa, dsa, dsaparam etc except they process any key 5382 type. 5383 [Steve Henson] 5384 5385 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 5386 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 5387 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 5388 structure. 5389 [Steve Henson] 5390 5391 *) Initial support for pluggable public key ASN1. 5392 De-spaghettify the public key ASN1 handling. Move public and private 5393 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 5394 algorithm specific handling to a single module within the relevant 5395 algorithm directory. Add functions to allow (near) opaque processing 5396 of public and private key structures. 5397 [Steve Henson] 5398 5399 *) Implement the Supported Point Formats Extension for 5400 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 5401 [Douglas Stebila] 5402 5403 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 5404 for the psk identity [hint] and the psk callback functions to the 5405 SSL_SESSION, SSL and SSL_CTX structure. 5406 5407 New ciphersuites: 5408 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 5409 PSK-AES256-CBC-SHA 5410 5411 New functions: 5412 SSL_CTX_use_psk_identity_hint 5413 SSL_get_psk_identity_hint 5414 SSL_get_psk_identity 5415 SSL_use_psk_identity_hint 5416 5417 [Mika Kousa and Pasi Eronen of Nokia Corporation] 5418 5419 *) Add RFC 3161 compliant time stamp request creation, response generation 5420 and response verification functionality. 5421 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project] 5422 5423 *) Add initial support for TLS extensions, specifically for the server_name 5424 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 5425 have new members for a host name. The SSL data structure has an 5426 additional member SSL_CTX *initial_ctx so that new sessions can be 5427 stored in that context to allow for session resumption, even after the 5428 SSL has been switched to a new SSL_CTX in reaction to a client's 5429 server_name extension. 5430 5431 New functions (subject to change): 5432 5433 SSL_get_servername() 5434 SSL_get_servername_type() 5435 SSL_set_SSL_CTX() 5436 5437 New CTRL codes and macros (subject to change): 5438 5439 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 5440 - SSL_CTX_set_tlsext_servername_callback() 5441 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 5442 - SSL_CTX_set_tlsext_servername_arg() 5443 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 5444 5445 openssl s_client has a new '-servername ...' option. 5446 5447 openssl s_server has new options '-servername_host ...', '-cert2 ...', 5448 '-key2 ...', '-servername_fatal' (subject to change). This allows 5449 testing the HostName extension for a specific single host name ('-cert' 5450 and '-key' remain fallbacks for handshakes without HostName 5451 negotiation). If the unrecognized_name alert has to be sent, this by 5452 default is a warning; it becomes fatal with the '-servername_fatal' 5453 option. 5454 5455 [Peter Sylvester, Remy Allais, Christophe Renou] 5456 5457 *) Whirlpool hash implementation is added. 5458 [Andy Polyakov] 5459 5460 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 5461 bn(64,32). Because of instruction set limitations it doesn't have 5462 any negative impact on performance. This was done mostly in order 5463 to make it possible to share assembler modules, such as bn_mul_mont 5464 implementations, between 32- and 64-bit builds without hassle. 5465 [Andy Polyakov] 5466 5467 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 5468 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 5469 macro. 5470 [Bodo Moeller] 5471 5472 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 5473 dedicated Montgomery multiplication procedure, is introduced. 5474 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 5475 "64-bit" performance on certain 32-bit targets. 5476 [Andy Polyakov] 5477 5478 *) New option SSL_OP_NO_COMP to disable use of compression selectively 5479 in SSL structures. New SSL ctrl to set maximum send fragment size. 5480 Save memory by setting the I/O buffer sizes dynamically instead of 5481 using the maximum available value. 5482 [Steve Henson] 5483 5484 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 5485 in addition to the text details. 5486 [Bodo Moeller] 5487 5488 *) Very, very preliminary EXPERIMENTAL support for printing of general 5489 ASN1 structures. This currently produces rather ugly output and doesn't 5490 handle several customised structures at all. 5491 [Steve Henson] 5492 5493 *) Integrated support for PVK file format and some related formats such 5494 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 5495 these in the 'rsa' and 'dsa' utilities. 5496 [Steve Henson] 5497 5498 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 5499 [Steve Henson] 5500 5501 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 5502 place for the (very old) "NETSCAPE" format certificates which are now 5503 handled using new ASN1 code equivalents. 5504 [Steve Henson] 5505 5506 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 5507 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 5508 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 5509 [Nils Larsch] 5510 5511 *) Modify CRL distribution points extension code to print out previously 5512 unsupported fields. Enhance extension setting code to allow setting of 5513 all fields. 5514 [Steve Henson] 5515 5516 *) Add print and set support for Issuing Distribution Point CRL extension. 5517 [Steve Henson] 5518 5519 *) Change 'Configure' script to enable Camellia by default. 5520 [NTT] 5521 5522 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 5523 5524 *) When rejecting SSL/TLS records due to an incorrect version number, never 5525 update s->server with a new major version number. As of 5526 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 5527 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 5528 the previous behavior could result in a read attempt at NULL when 5529 receiving specific incorrect SSL/TLS records once record payload 5530 protection is active. (CVE-2010-0740) 5531 [Bodo Moeller, Adam Langley <agl@chromium.org>] 5532 5533 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 5534 could be crashed if the relevant tables were not present (e.g. chrooted). 5535 [Tomas Hoger <thoger@redhat.com>] 5536 5537 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 5538 5539 *) Always check bn_wexpand() return values for failure. (CVE-2009-3245) 5540 [Martin Olsson, Neel Mehta] 5541 5542 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 5543 accommodate for stack sorting, always a write lock!). 5544 [Bodo Moeller] 5545 5546 *) On some versions of WIN32 Heap32Next is very slow. This can cause 5547 excessive delays in the RAND_poll(): over a minute. As a workaround 5548 include a time check in the inner Heap32Next loop too. 5549 [Steve Henson] 5550 5551 *) The code that handled flushing of data in SSL/TLS originally used the 5552 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 5553 the problem outlined in PR#1949. The fix suggested there however can 5554 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 5555 of Apache). So instead simplify the code to flush unconditionally. 5556 This should be fine since flushing with no data to flush is a no op. 5557 [Steve Henson] 5558 5559 *) Handle TLS versions 2.0 and later properly and correctly use the 5560 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 5561 off ancient servers have a habit of sticking around for a while... 5562 [Steve Henson] 5563 5564 *) Modify compression code so it frees up structures without using the 5565 ex_data callbacks. This works around a problem where some applications 5566 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 5567 restarting) then use compression (e.g. SSL with compression) later. 5568 This results in significant per-connection memory leaks and 5569 has caused some security issues including CVE-2008-1678 and 5570 CVE-2009-4355. 5571 [Steve Henson] 5572 5573 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 5574 change when encrypting or decrypting. 5575 [Bodo Moeller] 5576 5577 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 5578 connect and renegotiate with servers which do not support RI. 5579 Until RI is more widely deployed this option is enabled by default. 5580 [Steve Henson] 5581 5582 *) Add "missing" ssl ctrls to clear options and mode. 5583 [Steve Henson] 5584 5585 *) If client attempts to renegotiate and doesn't support RI respond with 5586 a no_renegotiation alert as required by RFC5746. Some renegotiating 5587 TLS clients will continue a connection gracefully when they receive 5588 the alert. Unfortunately OpenSSL mishandled this alert and would hang 5589 waiting for a server hello which it will never receive. Now we treat a 5590 received no_renegotiation alert as a fatal error. This is because 5591 applications requesting a renegotiation might well expect it to succeed 5592 and would have no code in place to handle the server denying it so the 5593 only safe thing to do is to terminate the connection. 5594 [Steve Henson] 5595 5596 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 5597 peer supports secure renegotiation and 0 otherwise. Print out peer 5598 renegotiation support in s_client/s_server. 5599 [Steve Henson] 5600 5601 *) Replace the highly broken and deprecated SPKAC certification method with 5602 the updated NID creation version. This should correctly handle UTF8. 5603 [Steve Henson] 5604 5605 *) Implement RFC5746. Re-enable renegotiation but require the extension 5606 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 5607 turns out to be a bad idea. It has been replaced by 5608 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 5609 SSL_CTX_set_options(). This is really not recommended unless you 5610 know what you are doing. 5611 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 5612 5613 *) Fixes to stateless session resumption handling. Use initial_ctx when 5614 issuing and attempting to decrypt tickets in case it has changed during 5615 servername handling. Use a non-zero length session ID when attempting 5616 stateless session resumption: this makes it possible to determine if 5617 a resumption has occurred immediately after receiving server hello 5618 (several places in OpenSSL subtly assume this) instead of later in 5619 the handshake. 5620 [Steve Henson] 5621 5622 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 5623 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 5624 fixes for a few places where the return code is not checked 5625 correctly. 5626 [Julia Lawall <julia@diku.dk>] 5627 5628 *) Add --strict-warnings option to Configure script to include devteam 5629 warnings in other configurations. 5630 [Steve Henson] 5631 5632 *) Add support for --libdir option and LIBDIR variable in makefiles. This 5633 makes it possible to install openssl libraries in locations which 5634 have names other than "lib", for example "/usr/lib64" which some 5635 systems need. 5636 [Steve Henson, based on patch from Jeremy Utley] 5637 5638 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 5639 X690 8.9.12 and can produce some misleading textual output of OIDs. 5640 [Steve Henson, reported by Dan Kaminsky] 5641 5642 *) Delete MD2 from algorithm tables. This follows the recommendation in 5643 several standards that it is not used in new applications due to 5644 several cryptographic weaknesses. For binary compatibility reasons 5645 the MD2 API is still compiled in by default. 5646 [Steve Henson] 5647 5648 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 5649 and restored. 5650 [Steve Henson] 5651 5652 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 5653 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 5654 clash. 5655 [Guenter <lists@gknw.net>] 5656 5657 *) Fix the server certificate chain building code to use X509_verify_cert(), 5658 it used to have an ad-hoc builder which was unable to cope with anything 5659 other than a simple chain. 5660 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 5661 5662 *) Don't check self signed certificate signatures in X509_verify_cert() 5663 by default (a flag can override this): it just wastes time without 5664 adding any security. As a useful side effect self signed root CAs 5665 with non-FIPS digests are now usable in FIPS mode. 5666 [Steve Henson] 5667 5668 *) In dtls1_process_out_of_seq_message() the check if the current message 5669 is already buffered was missing. For every new message was memory 5670 allocated, allowing an attacker to perform an denial of service attack 5671 with sending out of seq handshake messages until there is no memory 5672 left. Additionally every future message was buffered, even if the 5673 sequence number made no sense and would be part of another handshake. 5674 So only messages with sequence numbers less than 10 in advance will be 5675 buffered. (CVE-2009-1378) 5676 [Robin Seggelmann, discovered by Daniel Mentz] 5677 5678 *) Records are buffered if they arrive with a future epoch to be 5679 processed after finishing the corresponding handshake. There is 5680 currently no limitation to this buffer allowing an attacker to perform 5681 a DOS attack with sending records with future epochs until there is no 5682 memory left. This patch adds the pqueue_size() function to determine 5683 the size of a buffer and limits the record buffer to 100 entries. 5684 (CVE-2009-1377) 5685 [Robin Seggelmann, discovered by Daniel Mentz] 5686 5687 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 5688 parent structure is freed. (CVE-2009-1379) 5689 [Daniel Mentz] 5690 5691 *) Handle non-blocking I/O properly in SSL_shutdown() call. 5692 [Darryl Miles <darryl-mailinglists@netbauds.net>] 5693 5694 *) Add 2.5.4.* OIDs 5695 [Ilya O. <vrghost@gmail.com>] 5696 5697 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 5698 5699 *) Disable renegotiation completely - this fixes a severe security 5700 problem (CVE-2009-3555) at the cost of breaking all 5701 renegotiation. Renegotiation can be re-enabled by setting 5702 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 5703 run-time. This is really not recommended unless you know what 5704 you're doing. 5705 [Ben Laurie] 5706 5707 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 5708 5709 *) Don't set val to NULL when freeing up structures, it is freed up by 5710 underlying code. If sizeof(void *) > sizeof(long) this can result in 5711 zeroing past the valid field. (CVE-2009-0789) 5712 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 5713 5714 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 5715 checked correctly. This would allow some invalid signed attributes to 5716 appear to verify correctly. (CVE-2009-0591) 5717 [Ivan Nestlerode <inestlerode@us.ibm.com>] 5718 5719 *) Reject UniversalString and BMPString types with invalid lengths. This 5720 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 5721 a legal length. (CVE-2009-0590) 5722 [Steve Henson] 5723 5724 *) Set S/MIME signing as the default purpose rather than setting it 5725 unconditionally. This allows applications to override it at the store 5726 level. 5727 [Steve Henson] 5728 5729 *) Permit restricted recursion of ASN1 strings. This is needed in practice 5730 to handle some structures. 5731 [Steve Henson] 5732 5733 *) Improve efficiency of mem_gets: don't search whole buffer each time 5734 for a '\n' 5735 [Jeremy Shapiro <jnshapir@us.ibm.com>] 5736 5737 *) New -hex option for openssl rand. 5738 [Matthieu Herrb] 5739 5740 *) Print out UTF8String and NumericString when parsing ASN1. 5741 [Steve Henson] 5742 5743 *) Support NumericString type for name components. 5744 [Steve Henson] 5745 5746 *) Allow CC in the environment to override the automatically chosen 5747 compiler. Note that nothing is done to ensure flags work with the 5748 chosen compiler. 5749 [Ben Laurie] 5750 5751 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 5752 5753 *) Properly check EVP_VerifyFinal() and similar return values 5754 (CVE-2008-5077). 5755 [Ben Laurie, Bodo Moeller, Google Security Team] 5756 5757 *) Enable TLS extensions by default. 5758 [Ben Laurie] 5759 5760 *) Allow the CHIL engine to be loaded, whether the application is 5761 multithreaded or not. (This does not release the developer from the 5762 obligation to set up the dynamic locking callbacks.) 5763 [Sander Temme <sander@temme.net>] 5764 5765 *) Use correct exit code if there is an error in dgst command. 5766 [Steve Henson; problem pointed out by Roland Dirlewanger] 5767 5768 *) Tweak Configure so that you need to say "experimental-jpake" to enable 5769 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 5770 [Bodo Moeller] 5771 5772 *) Add experimental JPAKE support, including demo authentication in 5773 s_client and s_server. 5774 [Ben Laurie] 5775 5776 *) Set the comparison function in v3_addr_canonize(). 5777 [Rob Austein <sra@hactrn.net>] 5778 5779 *) Add support for XMPP STARTTLS in s_client. 5780 [Philip Paeps <philip@freebsd.org>] 5781 5782 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 5783 to ensure that even with this option, only ciphersuites in the 5784 server's preference list will be accepted. (Note that the option 5785 applies only when resuming a session, so the earlier behavior was 5786 just about the algorithm choice for symmetric cryptography.) 5787 [Bodo Moeller] 5788 5789 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 5790 5791 *) Fix NULL pointer dereference if a DTLS server received 5792 ChangeCipherSpec as first record (CVE-2009-1386). 5793 [PR #1679] 5794 5795 *) Fix a state transition in s3_srvr.c and d1_srvr.c 5796 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 5797 [Nagendra Modadugu] 5798 5799 *) The fix in 0.9.8c that supposedly got rid of unsafe 5800 double-checked locking was incomplete for RSA blinding, 5801 addressing just one layer of what turns out to have been 5802 doubly unsafe triple-checked locking. 5803 5804 So now fix this for real by retiring the MONT_HELPER macro 5805 in crypto/rsa/rsa_eay.c. 5806 5807 [Bodo Moeller; problem pointed out by Marius Schilder] 5808 5809 *) Various precautionary measures: 5810 5811 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 5812 5813 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 5814 (NB: This would require knowledge of the secret session ticket key 5815 to exploit, in which case you'd be SOL either way.) 5816 5817 - Change bn_nist.c so that it will properly handle input BIGNUMs 5818 outside the expected range. 5819 5820 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 5821 builds. 5822 5823 [Neel Mehta, Bodo Moeller] 5824 5825 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 5826 the load fails. Useful for distros. 5827 [Ben Laurie and the FreeBSD team] 5828 5829 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 5830 [Steve Henson] 5831 5832 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 5833 [Huang Ying] 5834 5835 *) Expand ENGINE to support engine supplied SSL client certificate functions. 5836 5837 This work was sponsored by Logica. 5838 [Steve Henson] 5839 5840 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 5841 keystores. Support for SSL/TLS client authentication too. 5842 Not compiled unless enable-capieng specified to Configure. 5843 5844 This work was sponsored by Logica. 5845 [Steve Henson] 5846 5847 *) Fix bug in X509_ATTRIBUTE creation: don't set attribute using 5848 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 5849 attribute creation routines such as certificate requests and PKCS#12 5850 files. 5851 [Steve Henson] 5852 5853 Changes between 0.9.8g and 0.9.8h [28 May 2008] 5854 5855 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 5856 handshake which could lead to a client crash as found using the 5857 Codenomicon TLS test suite (CVE-2008-1672) 5858 [Steve Henson, Mark Cox] 5859 5860 *) Fix double free in TLS server name extensions which could lead to 5861 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 5862 [Joe Orton] 5863 5864 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 5865 5866 Clear the error queue to ensure that error entries left from 5867 older function calls do not interfere with the correct operation. 5868 [Lutz Jaenicke, Erik de Castro Lopo] 5869 5870 *) Remove root CA certificates of commercial CAs: 5871 5872 The OpenSSL project does not recommend any specific CA and does not 5873 have any policy with respect to including or excluding any CA. 5874 Therefore it does not make any sense to ship an arbitrary selection 5875 of root CA certificates with the OpenSSL software. 5876 [Lutz Jaenicke] 5877 5878 *) RSA OAEP patches to fix two separate invalid memory reads. 5879 The first one involves inputs when 'lzero' is greater than 5880 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 5881 before the beginning of from). The second one involves inputs where 5882 the 'db' section contains nothing but zeroes (there is a one-byte 5883 invalid read after the end of 'db'). 5884 [Ivan Nestlerode <inestlerode@us.ibm.com>] 5885 5886 *) Partial backport from 0.9.9-dev: 5887 5888 Introduce bn_mul_mont (dedicated Montgomery multiplication 5889 procedure) as a candidate for BIGNUM assembler implementation. 5890 While 0.9.9-dev uses assembler for various architectures, only 5891 x86_64 is available by default here in the 0.9.8 branch, and 5892 32-bit x86 is available through a compile-time setting. 5893 5894 To try the 32-bit x86 assembler implementation, use Configure 5895 option "enable-montasm" (which exists only for this backport). 5896 5897 As "enable-montasm" for 32-bit x86 disclaims code stability 5898 anyway, in this constellation we activate additional code 5899 backported from 0.9.9-dev for further performance improvements, 5900 namely BN_from_montgomery_word. (To enable this otherwise, 5901 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 5902 5903 [Andy Polyakov (backport partially by Bodo Moeller)] 5904 5905 *) Add TLS session ticket callback. This allows an application to set 5906 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 5907 values. This is useful for key rollover for example where several key 5908 sets may exist with different names. 5909 [Steve Henson] 5910 5911 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 5912 This was broken until now in 0.9.8 releases, such that the only way 5913 a registered ENGINE could be used (assuming it initialises 5914 successfully on the host) was to explicitly set it as the default 5915 for the relevant algorithms. This is in contradiction with 0.9.7 5916 behaviour and the documentation. With this fix, when an ENGINE is 5917 registered into a given algorithm's table of implementations, the 5918 'uptodate' flag is reset so that auto-discovery will be used next 5919 time a new context for that algorithm attempts to select an 5920 implementation. 5921 [Ian Lister (tweaked by Geoff Thorpe)] 5922 5923 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 5924 implementation in the following ways: 5925 5926 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 5927 hard coded. 5928 5929 Lack of BER streaming support means one pass streaming processing is 5930 only supported if data is detached: setting the streaming flag is 5931 ignored for embedded content. 5932 5933 CMS support is disabled by default and must be explicitly enabled 5934 with the enable-cms configuration option. 5935 [Steve Henson] 5936 5937 *) Update the GMP engine glue to do direct copies between BIGNUM and 5938 mpz_t when openssl and GMP use the same limb size. Otherwise the 5939 existing "conversion via a text string export" trick is still used. 5940 [Paul Sheer <paulsheer@gmail.com>] 5941 5942 *) Zlib compression BIO. This is a filter BIO which compressed and 5943 uncompresses any data passed through it. 5944 [Steve Henson] 5945 5946 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 5947 RFC3394 compatible AES key wrapping. 5948 [Steve Henson] 5949 5950 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 5951 sets string data without copying. X509_ALGOR_set0() and 5952 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 5953 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 5954 from an X509_ATTRIBUTE structure optionally checking it occurs only 5955 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 5956 data. 5957 [Steve Henson] 5958 5959 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 5960 to get the expected BN_FLG_CONSTTIME behavior. 5961 [Bodo Moeller (Google)] 5962 5963 *) Netware support: 5964 5965 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 5966 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 5967 - added some more tests to do_tests.pl 5968 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 5969 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 5970 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 5971 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 5972 - various changes to netware.pl to enable gcc-cross builds on Win32 5973 platform 5974 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 5975 - various changes to fix missing prototype warnings 5976 - fixed x86nasm.pl to create correct asm files for NASM COFF output 5977 - added AES, WHIRLPOOL and CPUID assembler code to build files 5978 - added missing AES assembler make rules to mk1mf.pl 5979 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 5980 [Guenter Knauf <eflash@gmx.net>] 5981 5982 *) Implement certificate status request TLS extension defined in RFC3546. 5983 A client can set the appropriate parameters and receive the encoded 5984 OCSP response via a callback. A server can query the supplied parameters 5985 and set the encoded OCSP response in the callback. Add simplified examples 5986 to s_client and s_server. 5987 [Steve Henson] 5988 5989 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 5990 5991 *) Fix various bugs: 5992 + Binary incompatibility of ssl_ctx_st structure 5993 + DTLS interoperation with non-compliant servers 5994 + Don't call get_session_cb() without proposed session 5995 + Fix ia64 assembler code 5996 [Andy Polyakov, Steve Henson] 5997 5998 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 5999 6000 *) DTLS Handshake overhaul. There were longstanding issues with 6001 OpenSSL DTLS implementation, which were making it impossible for 6002 RFC 4347 compliant client to communicate with OpenSSL server. 6003 Unfortunately just fixing these incompatibilities would "cut off" 6004 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 6005 server keeps tolerating non RFC compliant syntax. The opposite is 6006 not true, 0.9.8f client can not communicate with earlier server. 6007 This update even addresses CVE-2007-4995. 6008 [Andy Polyakov] 6009 6010 *) Changes to avoid need for function casts in OpenSSL: some compilers 6011 (gcc 4.2 and later) reject their use. 6012 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 6013 Steve Henson] 6014 6015 *) Add RFC4507 support to OpenSSL. This includes the corrections in 6016 RFC4507bis. The encrypted ticket format is an encrypted encoded 6017 SSL_SESSION structure, that way new session features are automatically 6018 supported. 6019 6020 If a client application caches session in an SSL_SESSION structure 6021 support is transparent because tickets are now stored in the encoded 6022 SSL_SESSION. 6023 6024 The SSL_CTX structure automatically generates keys for ticket 6025 protection in servers so again support should be possible 6026 with no application modification. 6027 6028 If a client or server wishes to disable RFC4507 support then the option 6029 SSL_OP_NO_TICKET can be set. 6030 6031 Add a TLS extension debugging callback to allow the contents of any client 6032 or server extensions to be examined. 6033 6034 This work was sponsored by Google. 6035 [Steve Henson] 6036 6037 *) Add initial support for TLS extensions, specifically for the server_name 6038 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 6039 have new members for a host name. The SSL data structure has an 6040 additional member SSL_CTX *initial_ctx so that new sessions can be 6041 stored in that context to allow for session resumption, even after the 6042 SSL has been switched to a new SSL_CTX in reaction to a client's 6043 server_name extension. 6044 6045 New functions (subject to change): 6046 6047 SSL_get_servername() 6048 SSL_get_servername_type() 6049 SSL_set_SSL_CTX() 6050 6051 New CTRL codes and macros (subject to change): 6052 6053 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 6054 - SSL_CTX_set_tlsext_servername_callback() 6055 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 6056 - SSL_CTX_set_tlsext_servername_arg() 6057 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 6058 6059 openssl s_client has a new '-servername ...' option. 6060 6061 openssl s_server has new options '-servername_host ...', '-cert2 ...', 6062 '-key2 ...', '-servername_fatal' (subject to change). This allows 6063 testing the HostName extension for a specific single host name ('-cert' 6064 and '-key' remain fallbacks for handshakes without HostName 6065 negotiation). If the unrecognized_name alert has to be sent, this by 6066 default is a warning; it becomes fatal with the '-servername_fatal' 6067 option. 6068 6069 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 6070 6071 *) Add AES and SSE2 assembly language support to VC++ build. 6072 [Steve Henson] 6073 6074 *) Mitigate attack on final subtraction in Montgomery reduction. 6075 [Andy Polyakov] 6076 6077 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 6078 (which previously caused an internal error). 6079 [Bodo Moeller] 6080 6081 *) Squeeze another 10% out of IGE mode when in != out. 6082 [Ben Laurie] 6083 6084 *) AES IGE mode speedup. 6085 [Dean Gaudet (Google)] 6086 6087 *) Add the Korean symmetric 128-bit cipher SEED (see 6088 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 6089 add SEED ciphersuites from RFC 4162: 6090 6091 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 6092 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 6093 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 6094 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 6095 6096 To minimize changes between patchlevels in the OpenSSL 0.9.8 6097 series, SEED remains excluded from compilation unless OpenSSL 6098 is configured with 'enable-seed'. 6099 [KISA, Bodo Moeller] 6100 6101 *) Mitigate branch prediction attacks, which can be practical if a 6102 single processor is shared, allowing a spy process to extract 6103 information. For detailed background information, see 6104 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 6105 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 6106 and Necessary Software Countermeasures"). The core of the change 6107 are new versions BN_div_no_branch() and 6108 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 6109 respectively, which are slower, but avoid the security-relevant 6110 conditional branches. These are automatically called by BN_div() 6111 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 6112 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 6113 remove a conditional branch. 6114 6115 BN_FLG_CONSTTIME is the new name for the previous 6116 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 6117 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 6118 in the exponent causes BN_mod_exp_mont() to use the alternative 6119 implementation in BN_mod_exp_mont_consttime().) The old name 6120 remains as a deprecated alias. 6121 6122 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 6123 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 6124 constant-time implementations for more than just exponentiation. 6125 Here too the old name is kept as a deprecated alias. 6126 6127 BN_BLINDING_new() will now use BN_dup() for the modulus so that 6128 the BN_BLINDING structure gets an independent copy of the 6129 modulus. This means that the previous "BIGNUM *m" argument to 6130 BN_BLINDING_new() and to BN_BLINDING_create_param() now 6131 essentially becomes "const BIGNUM *m", although we can't actually 6132 change this in the header file before 0.9.9. It allows 6133 RSA_setup_blinding() to use BN_with_flags() on the modulus to 6134 enable BN_FLG_CONSTTIME. 6135 6136 [Matthew D Wood (Intel Corp)] 6137 6138 *) In the SSL/TLS server implementation, be strict about session ID 6139 context matching (which matters if an application uses a single 6140 external cache for different purposes). Previously, 6141 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 6142 set. This did ensure strict client verification, but meant that, 6143 with applications using a single external cache for quite 6144 different requirements, clients could circumvent ciphersuite 6145 restrictions for a given session ID context by starting a session 6146 in a different context. 6147 [Bodo Moeller] 6148 6149 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 6150 a ciphersuite string such as "DEFAULT:RSA" cannot enable 6151 authentication-only ciphersuites. 6152 [Bodo Moeller] 6153 6154 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 6155 not complete and could lead to a possible single byte overflow 6156 (CVE-2007-5135) [Ben Laurie] 6157 6158 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 6159 6160 *) Since AES128 and AES256 (and similarly Camellia128 and 6161 Camellia256) share a single mask bit in the logic of 6162 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 6163 kludge to work properly if AES128 is available and AES256 isn't 6164 (or if Camellia128 is available and Camellia256 isn't). 6165 [Victor Duchovni] 6166 6167 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 6168 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 6169 When a point or a seed is encoded in a BIT STRING, we need to 6170 prevent the removal of trailing zero bits to get the proper DER 6171 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 6172 of a NamedBitList, for which trailing 0 bits need to be removed.) 6173 [Bodo Moeller] 6174 6175 *) Have SSL/TLS server implementation tolerate "mismatched" record 6176 protocol version while receiving ClientHello even if the 6177 ClientHello is fragmented. (The server can't insist on the 6178 particular protocol version it has chosen before the ServerHello 6179 message has informed the client about his choice.) 6180 [Bodo Moeller] 6181 6182 *) Add RFC 3779 support. 6183 [Rob Austein for ARIN, Ben Laurie] 6184 6185 *) Load error codes if they are not already present instead of using a 6186 static variable. This allows them to be cleanly unloaded and reloaded. 6187 Improve header file function name parsing. 6188 [Steve Henson] 6189 6190 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 6191 or CAPABILITY handshake as required by RFCs. 6192 [Goetz Babin-Ebell] 6193 6194 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 6195 6196 *) Introduce limits to prevent malicious keys being able to 6197 cause a denial of service. (CVE-2006-2940) 6198 [Steve Henson, Bodo Moeller] 6199 6200 *) Fix ASN.1 parsing of certain invalid structures that can result 6201 in a denial of service. (CVE-2006-2937) [Steve Henson] 6202 6203 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 6204 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 6205 6206 *) Fix SSL client code which could crash if connecting to a 6207 malicious SSLv2 server. (CVE-2006-4343) 6208 [Tavis Ormandy and Will Drewry, Google Security Team] 6209 6210 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 6211 match only those. Before that, "AES256-SHA" would be interpreted 6212 as a pattern and match "AES128-SHA" too (since AES128-SHA got 6213 the same strength classification in 0.9.7h) as we currently only 6214 have a single AES bit in the ciphersuite description bitmap. 6215 That change, however, also applied to ciphersuite strings such as 6216 "RC4-MD5" that intentionally matched multiple ciphersuites -- 6217 namely, SSL 2.0 ciphersuites in addition to the more common ones 6218 from SSL 3.0/TLS 1.0. 6219 6220 So we change the selection algorithm again: Naming an explicit 6221 ciphersuite selects this one ciphersuite, and any other similar 6222 ciphersuite (same bitmap) from *other* protocol versions. 6223 Thus, "RC4-MD5" again will properly select both the SSL 2.0 6224 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 6225 6226 Since SSL 2.0 does not have any ciphersuites for which the 6227 128/256 bit distinction would be relevant, this works for now. 6228 The proper fix will be to use different bits for AES128 and 6229 AES256, which would have avoided the problems from the beginning; 6230 however, bits are scarce, so we can only do this in a new release 6231 (not just a patchlevel) when we can change the SSL_CIPHER 6232 definition to split the single 'unsigned long mask' bitmap into 6233 multiple values to extend the available space. 6234 6235 [Bodo Moeller] 6236 6237 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 6238 6239 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 6240 (CVE-2006-4339) [Ben Laurie and Google Security Team] 6241 6242 *) Add AES IGE and biIGE modes. 6243 [Ben Laurie] 6244 6245 *) Change the Unix randomness entropy gathering to use poll() when 6246 possible instead of select(), since the latter has some 6247 undesirable limitations. 6248 [Darryl Miles via Richard Levitte and Bodo Moeller] 6249 6250 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 6251 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 6252 cannot be implicitly activated as part of, e.g., the "AES" alias. 6253 However, please upgrade to OpenSSL 0.9.9[-dev] for 6254 non-experimental use of the ECC ciphersuites to get TLS extension 6255 support, which is required for curve and point format negotiation 6256 to avoid potential handshake problems. 6257 [Bodo Moeller] 6258 6259 *) Disable rogue ciphersuites: 6260 6261 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 6262 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 6263 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 6264 6265 The latter two were purportedly from 6266 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 6267 appear there. 6268 6269 Also deactivate the remaining ciphersuites from 6270 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 6271 unofficial, and the ID has long expired. 6272 [Bodo Moeller] 6273 6274 *) Fix RSA blinding Heisenbug (problems sometimes occurred on 6275 dual-core machines) and other potential thread-safety issues. 6276 [Bodo Moeller] 6277 6278 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 6279 versions), which is now available for royalty-free use 6280 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 6281 Also, add Camellia TLS ciphersuites from RFC 4132. 6282 6283 To minimize changes between patchlevels in the OpenSSL 0.9.8 6284 series, Camellia remains excluded from compilation unless OpenSSL 6285 is configured with 'enable-camellia'. 6286 [NTT] 6287 6288 *) Disable the padding bug check when compression is in use. The padding 6289 bug check assumes the first packet is of even length, this is not 6290 necessarily true if compression is enabled and can result in false 6291 positives causing handshake failure. The actual bug test is ancient 6292 code so it is hoped that implementations will either have fixed it by 6293 now or any which still have the bug do not support compression. 6294 [Steve Henson] 6295 6296 Changes between 0.9.8a and 0.9.8b [04 May 2006] 6297 6298 *) When applying a cipher rule check to see if string match is an explicit 6299 cipher suite and only match that one cipher suite if it is. 6300 [Steve Henson] 6301 6302 *) Link in manifests for VC++ if needed. 6303 [Austin Ziegler <halostatue@gmail.com>] 6304 6305 *) Update support for ECC-based TLS ciphersuites according to 6306 draft-ietf-tls-ecc-12.txt with proposed changes (but without 6307 TLS extensions, which are supported starting with the 0.9.9 6308 branch, not in the OpenSSL 0.9.8 branch). 6309 [Douglas Stebila] 6310 6311 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 6312 opaque EVP_CIPHER_CTX handling. 6313 [Steve Henson] 6314 6315 *) Fixes and enhancements to zlib compression code. We now only use 6316 "zlib1.dll" and use the default __cdecl calling convention on Win32 6317 to conform with the standards mentioned here: 6318 http://www.zlib.net/DLL_FAQ.txt 6319 Static zlib linking now works on Windows and the new --with-zlib-include 6320 --with-zlib-lib options to Configure can be used to supply the location 6321 of the headers and library. Gracefully handle case where zlib library 6322 can't be loaded. 6323 [Steve Henson] 6324 6325 *) Several fixes and enhancements to the OID generation code. The old code 6326 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 6327 handle numbers larger than ULONG_MAX, truncated printing and had a 6328 non standard OBJ_obj2txt() behaviour. 6329 [Steve Henson] 6330 6331 *) Add support for building of engines under engine/ as shared libraries 6332 under VC++ build system. 6333 [Steve Henson] 6334 6335 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 6336 Hopefully, we will not see any false combination of paths any more. 6337 [Richard Levitte] 6338 6339 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 6340 6341 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 6342 (part of SSL_OP_ALL). This option used to disable the 6343 countermeasure against man-in-the-middle protocol-version 6344 rollback in the SSL 2.0 server implementation, which is a bad 6345 idea. (CVE-2005-2969) 6346 6347 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 6348 for Information Security, National Institute of Advanced Industrial 6349 Science and Technology [AIST], Japan)] 6350 6351 *) Add two function to clear and return the verify parameter flags. 6352 [Steve Henson] 6353 6354 *) Keep cipherlists sorted in the source instead of sorting them at 6355 runtime, thus removing the need for a lock. 6356 [Nils Larsch] 6357 6358 *) Avoid some small subgroup attacks in Diffie-Hellman. 6359 [Nick Mathewson and Ben Laurie] 6360 6361 *) Add functions for well-known primes. 6362 [Nick Mathewson] 6363 6364 *) Extended Windows CE support. 6365 [Satoshi Nakamura and Andy Polyakov] 6366 6367 *) Initialize SSL_METHOD structures at compile time instead of during 6368 runtime, thus removing the need for a lock. 6369 [Steve Henson] 6370 6371 *) Make PKCS7_decrypt() work even if no certificate is supplied by 6372 attempting to decrypt each encrypted key in turn. Add support to 6373 smime utility. 6374 [Steve Henson] 6375 6376 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 6377 6378 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 6379 OpenSSL 0.9.8.] 6380 6381 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 6382 [Richard Levitte] 6383 6384 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 6385 key into the same file any more. 6386 [Richard Levitte] 6387 6388 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 6389 [Andy Polyakov] 6390 6391 *) Add -utf8 command line and config file option to 'ca'. 6392 [Stefan <stf@udoma.org] 6393 6394 *) Removed the macro des_crypt(), as it seems to conflict with some 6395 libraries. Use DES_crypt(). 6396 [Richard Levitte] 6397 6398 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 6399 involves renaming the source and generated shared-libs for 6400 both. The engines will accept the corrected or legacy ids 6401 ('ncipher' and '4758_cca' respectively) when binding. NB, 6402 this only applies when building 'shared'. 6403 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 6404 6405 *) Add attribute functions to EVP_PKEY structure. Modify 6406 PKCS12_create() to recognize a CSP name attribute and 6407 use it. Make -CSP option work again in pkcs12 utility. 6408 [Steve Henson] 6409 6410 *) Add new functionality to the bn blinding code: 6411 - automatic re-creation of the BN_BLINDING parameters after 6412 a fixed number of uses (currently 32) 6413 - add new function for parameter creation 6414 - introduce flags to control the update behaviour of the 6415 BN_BLINDING parameters 6416 - hide BN_BLINDING structure 6417 Add a second BN_BLINDING slot to the RSA structure to improve 6418 performance when a single RSA object is shared among several 6419 threads. 6420 [Nils Larsch] 6421 6422 *) Add support for DTLS. 6423 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 6424 6425 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 6426 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 6427 [Walter Goulet] 6428 6429 *) Remove buggy and incomplete DH cert support from 6430 ssl/ssl_rsa.c and ssl/s3_both.c 6431 [Nils Larsch] 6432 6433 *) Use SHA-1 instead of MD5 as the default digest algorithm for 6434 the apps/openssl applications. 6435 [Nils Larsch] 6436 6437 *) Compile clean with "-Wall -Wmissing-prototypes 6438 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 6439 DEBUG_SAFESTACK must also be set. 6440 [Ben Laurie] 6441 6442 *) Change ./Configure so that certain algorithms can be disabled by default. 6443 The new counterpiece to "no-xxx" is "enable-xxx". 6444 6445 The patented RC5 and MDC2 algorithms will now be disabled unless 6446 "enable-rc5" and "enable-mdc2", respectively, are specified. 6447 6448 (IDEA remains enabled despite being patented. This is because IDEA 6449 is frequently required for interoperability, and there is no license 6450 fee for non-commercial use. As before, "no-idea" can be used to 6451 avoid this algorithm.) 6452 6453 [Bodo Moeller] 6454 6455 *) Add processing of proxy certificates (see RFC 3820). This work was 6456 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 6457 EGEE (Enabling Grids for E-science in Europe). 6458 [Richard Levitte] 6459 6460 *) RC4 performance overhaul on modern architectures/implementations, such 6461 as Intel P4, IA-64 and AMD64. 6462 [Andy Polyakov] 6463 6464 *) New utility extract-section.pl. This can be used specify an alternative 6465 section number in a pod file instead of having to treat each file as 6466 a separate case in Makefile. This can be done by adding two lines to the 6467 pod file: 6468 6469 =for comment openssl_section:XXX 6470 6471 The blank line is mandatory. 6472 6473 [Steve Henson] 6474 6475 *) New arguments -certform, -keyform and -pass for s_client and s_server 6476 to allow alternative format key and certificate files and passphrase 6477 sources. 6478 [Steve Henson] 6479 6480 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 6481 update associated structures and add various utility functions. 6482 6483 Add new policy related verify parameters, include policy checking in 6484 standard verify code. Enhance 'smime' application with extra parameters 6485 to support policy checking and print out. 6486 [Steve Henson] 6487 6488 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 6489 Nehemiah processors. These extensions support AES encryption in hardware 6490 as well as RNG (though RNG support is currently disabled). 6491 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 6492 6493 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 6494 [Geoff Thorpe] 6495 6496 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 6497 [Andy Polyakov and a number of other people] 6498 6499 *) Improved PowerPC platform support. Most notably BIGNUM assembler 6500 implementation contributed by IBM. 6501 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 6502 6503 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 6504 exponent rather than 'unsigned long'. There is a corresponding change to 6505 the new 'rsa_keygen' element of the RSA_METHOD structure. 6506 [Jelte Jansen, Geoff Thorpe] 6507 6508 *) Functionality for creating the initial serial number file is now 6509 moved from CA.pl to the 'ca' utility with a new option -create_serial. 6510 6511 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 6512 number file to 1, which is bound to cause problems. To avoid 6513 the problems while respecting compatibility between different 0.9.7 6514 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 6515 CA.pl for serial number initialization. With the new release 0.9.8, 6516 we can fix the problem directly in the 'ca' utility.) 6517 [Steve Henson] 6518 6519 *) Reduced header interdependencies by declaring more opaque objects in 6520 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 6521 give fewer recursive includes, which could break lazy source code - so 6522 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 6523 developers should define this symbol when building and using openssl to 6524 ensure they track the recommended behaviour, interfaces, [etc], but 6525 backwards-compatible behaviour prevails when this isn't defined. 6526 [Geoff Thorpe] 6527 6528 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 6529 [Steve Henson] 6530 6531 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 6532 This will generate a random key of the appropriate length based on the 6533 cipher context. The EVP_CIPHER can provide its own random key generation 6534 routine to support keys of a specific form. This is used in the des and 6535 3des routines to generate a key of the correct parity. Update S/MIME 6536 code to use new functions and hence generate correct parity DES keys. 6537 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 6538 valid (weak or incorrect parity). 6539 [Steve Henson] 6540 6541 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 6542 as looking them up. This is useful when the verified structure may contain 6543 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 6544 present unless the new PKCS7_NO_CRL flag is asserted. 6545 [Steve Henson] 6546 6547 *) Extend ASN1 oid configuration module. It now additionally accepts the 6548 syntax: 6549 6550 shortName = some long name, 1.2.3.4 6551 [Steve Henson] 6552 6553 *) Reimplemented the BN_CTX implementation. There is now no more static 6554 limitation on the number of variables it can handle nor the depth of the 6555 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 6556 information can now expand as required, and rather than having a single 6557 static array of bignums, BN_CTX now uses a linked-list of such arrays 6558 allowing it to expand on demand whilst maintaining the usefulness of 6559 BN_CTX's "bundling". 6560 [Geoff Thorpe] 6561 6562 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 6563 to allow all RSA operations to function using a single BN_CTX. 6564 [Geoff Thorpe] 6565 6566 *) Preliminary support for certificate policy evaluation and checking. This 6567 is initially intended to pass the tests outlined in "Conformance Testing 6568 of Relying Party Client Certificate Path Processing Logic" v1.07. 6569 [Steve Henson] 6570 6571 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 6572 remained unused and not that useful. A variety of other little bignum 6573 tweaks and fixes have also been made continuing on from the audit (see 6574 below). 6575 [Geoff Thorpe] 6576 6577 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 6578 associated ASN1, EVP and SSL functions and old ASN1 macros. 6579 [Richard Levitte] 6580 6581 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 6582 and this should never fail. So the return value from the use of 6583 BN_set_word() (which can fail due to needless expansion) is now deprecated; 6584 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 6585 [Geoff Thorpe] 6586 6587 *) BN_CTX_get() should return zero-valued bignums, providing the same 6588 initialised value as BN_new(). 6589 [Geoff Thorpe, suggested by Ulf Möller] 6590 6591 *) Support for inhibitAnyPolicy certificate extension. 6592 [Steve Henson] 6593 6594 *) An audit of the BIGNUM code is underway, for which debugging code is 6595 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 6596 is considered valid when processing BIGNUMs, and causes execution to 6597 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 6598 further steps are taken to deliberately pollute unused data in BIGNUM 6599 structures to try and expose faulty code further on. For now, openssl will 6600 (in its default mode of operation) continue to tolerate the inconsistent 6601 forms that it has tolerated in the past, but authors and packagers should 6602 consider trying openssl and their own applications when compiled with 6603 these debugging symbols defined. It will help highlight potential bugs in 6604 their own code, and will improve the test coverage for OpenSSL itself. At 6605 some point, these tighter rules will become openssl's default to improve 6606 maintainability, though the assert()s and other overheads will remain only 6607 in debugging configurations. See bn.h for more details. 6608 [Geoff Thorpe, Nils Larsch, Ulf Möller] 6609 6610 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 6611 that can only be obtained through BN_CTX_new() (which implicitly 6612 initialises it). The presence of this function only made it possible 6613 to overwrite an existing structure (and cause memory leaks). 6614 [Geoff Thorpe] 6615 6616 *) Because of the callback-based approach for implementing LHASH as a 6617 template type, lh_insert() adds opaque objects to hash-tables and 6618 lh_doall() or lh_doall_arg() are typically used with a destructor callback 6619 to clean up those corresponding objects before destroying the hash table 6620 (and losing the object pointers). So some over-zealous constifications in 6621 LHASH have been relaxed so that lh_insert() does not take (nor store) the 6622 objects as "const" and the lh_doall[_arg] callback wrappers are not 6623 prototyped to have "const" restrictions on the object pointers they are 6624 given (and so aren't required to cast them away any more). 6625 [Geoff Thorpe] 6626 6627 *) The tmdiff.h API was so ugly and minimal that our own timing utility 6628 (speed) prefers to use its own implementation. The two implementations 6629 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 6630 its object type properly exposed (MS_TM) instead of casting to/from "char 6631 *". This may still change yet if someone realises MS_TM and "ms_time_***" 6632 aren't necessarily the greatest nomenclatures - but this is what was used 6633 internally to the implementation so I've used that for now. 6634 [Geoff Thorpe] 6635 6636 *) Ensure that deprecated functions do not get compiled when 6637 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 6638 the self-tests were still using deprecated key-generation functions so 6639 these have been updated also. 6640 [Geoff Thorpe] 6641 6642 *) Reorganise PKCS#7 code to separate the digest location functionality 6643 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest(). 6644 New function PKCS7_set_digest() to set the digest type for PKCS#7 6645 digestedData type. Add additional code to correctly generate the 6646 digestedData type and add support for this type in PKCS7 initialization 6647 functions. 6648 [Steve Henson] 6649 6650 *) New function PKCS7_set0_type_other() this initializes a PKCS7 6651 structure of type "other". 6652 [Steve Henson] 6653 6654 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 6655 sure the loop does correctly stop and breaking ("division by zero") 6656 modulus operations are not performed. The (pre-generated) prime 6657 table crypto/bn/bn_prime.h was already correct, but it could not be 6658 re-generated on some platforms because of the "division by zero" 6659 situation in the script. 6660 [Ralf S. Engelschall] 6661 6662 *) Update support for ECC-based TLS ciphersuites according to 6663 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 6664 SHA-1 now is only used for "small" curves (where the 6665 representation of a field element takes up to 24 bytes); for 6666 larger curves, the field element resulting from ECDH is directly 6667 used as premaster secret. 6668 [Douglas Stebila (Sun Microsystems Laboratories)] 6669 6670 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 6671 curve secp160r1 to the tests. 6672 [Douglas Stebila (Sun Microsystems Laboratories)] 6673 6674 *) Add the possibility to load symbols globally with DSO. 6675 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 6676 6677 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 6678 control of the error stack. 6679 [Richard Levitte] 6680 6681 *) Add support for STORE in ENGINE. 6682 [Richard Levitte] 6683 6684 *) Add the STORE type. The intention is to provide a common interface 6685 to certificate and key stores, be they simple file-based stores, or 6686 HSM-type store, or LDAP stores, or... 6687 NOTE: The code is currently UNTESTED and isn't really used anywhere. 6688 [Richard Levitte] 6689 6690 *) Add a generic structure called OPENSSL_ITEM. This can be used to 6691 pass a list of arguments to any function as well as provide a way 6692 for a function to pass data back to the caller. 6693 [Richard Levitte] 6694 6695 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 6696 works like BUF_strdup() but can be used to duplicate a portion of 6697 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 6698 a memory area. 6699 [Richard Levitte] 6700 6701 *) Add the function sk_find_ex() which works like sk_find(), but will 6702 return an index to an element even if an exact match couldn't be 6703 found. The index is guaranteed to point at the element where the 6704 searched-for key would be inserted to preserve sorting order. 6705 [Richard Levitte] 6706 6707 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 6708 takes an extra flags argument for optional functionality. Currently, 6709 the following flags are defined: 6710 6711 OBJ_BSEARCH_VALUE_ON_NOMATCH 6712 This one gets OBJ_bsearch_ex() to return a pointer to the first 6713 element where the comparing function returns a negative or zero 6714 number. 6715 6716 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 6717 This one gets OBJ_bsearch_ex() to return a pointer to the first 6718 element where the comparing function returns zero. This is useful 6719 if there are more than one element where the comparing function 6720 returns zero. 6721 [Richard Levitte] 6722 6723 *) Make it possible to create self-signed certificates with 'openssl ca' 6724 in such a way that the self-signed certificate becomes part of the 6725 CA database and uses the same mechanisms for serial number generation 6726 as all other certificate signing. The new flag '-selfsign' enables 6727 this functionality. Adapt CA.sh and CA.pl.in. 6728 [Richard Levitte] 6729 6730 *) Add functionality to check the public key of a certificate request 6731 against a given private. This is useful to check that a certificate 6732 request can be signed by that key (self-signing). 6733 [Richard Levitte] 6734 6735 *) Make it possible to have multiple active certificates with the same 6736 subject in the CA index file. This is done only if the keyword 6737 'unique_subject' is set to 'no' in the main CA section (default 6738 if 'CA_default') of the configuration file. The value is saved 6739 with the database itself in a separate index attribute file, 6740 named like the index file with '.attr' appended to the name. 6741 [Richard Levitte] 6742 6743 *) Generate multi-valued AVAs using '+' notation in config files for 6744 req and dirName. 6745 [Steve Henson] 6746 6747 *) Support for nameConstraints certificate extension. 6748 [Steve Henson] 6749 6750 *) Support for policyConstraints certificate extension. 6751 [Steve Henson] 6752 6753 *) Support for policyMappings certificate extension. 6754 [Steve Henson] 6755 6756 *) Make sure the default DSA_METHOD implementation only uses its 6757 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 6758 and change its own handlers to be NULL so as to remove unnecessary 6759 indirection. This lets alternative implementations fallback to the 6760 default implementation more easily. 6761 [Geoff Thorpe] 6762 6763 *) Support for directoryName in GeneralName related extensions 6764 in config files. 6765 [Steve Henson] 6766 6767 *) Make it possible to link applications using Makefile.shared. 6768 Make that possible even when linking against static libraries! 6769 [Richard Levitte] 6770 6771 *) Support for single pass processing for S/MIME signing. This now 6772 means that S/MIME signing can be done from a pipe, in addition 6773 cleartext signing (multipart/signed type) is effectively streaming 6774 and the signed data does not need to be all held in memory. 6775 6776 This is done with a new flag PKCS7_STREAM. When this flag is set 6777 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 6778 is done after the data is output (and digests calculated) in 6779 SMIME_write_PKCS7(). 6780 [Steve Henson] 6781 6782 *) Add full support for -rpath/-R, both in shared libraries and 6783 applications, at least on the platforms where it's known how 6784 to do it. 6785 [Richard Levitte] 6786 6787 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 6788 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 6789 will now compute a table of multiples of the generator that 6790 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 6791 faster (notably in the case of a single point multiplication, 6792 scalar * generator). 6793 [Nils Larsch, Bodo Moeller] 6794 6795 *) IPv6 support for certificate extensions. The various extensions 6796 which use the IP:a.b.c.d can now take IPv6 addresses using the 6797 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 6798 correctly. 6799 [Steve Henson] 6800 6801 *) Added an ENGINE that implements RSA by performing private key 6802 exponentiations with the GMP library. The conversions to and from 6803 GMP's mpz_t format aren't optimised nor are any montgomery forms 6804 cached, and on x86 it appears OpenSSL's own performance has caught up. 6805 However there are likely to be other architectures where GMP could 6806 provide a boost. This ENGINE is not built in by default, but it can be 6807 specified at Configure time and should be accompanied by the necessary 6808 linker additions, eg; 6809 ./config -DOPENSSL_USE_GMP -lgmp 6810 [Geoff Thorpe] 6811 6812 *) "openssl engine" will not display ENGINE/DSO load failure errors when 6813 testing availability of engines with "-t" - the old behaviour is 6814 produced by increasing the feature's verbosity with "-tt". 6815 [Geoff Thorpe] 6816 6817 *) ECDSA routines: under certain error conditions uninitialized BN objects 6818 could be freed. Solution: make sure initialization is performed early 6819 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 6820 via PR#459) 6821 [Lutz Jaenicke] 6822 6823 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 6824 and DH_METHOD (eg. by ENGINE implementations) to override the normal 6825 software implementations. For DSA and DH, parameter generation can 6826 also be overridden by providing the appropriate method callbacks. 6827 [Geoff Thorpe] 6828 6829 *) Change the "progress" mechanism used in key-generation and 6830 primality testing to functions that take a new BN_GENCB pointer in 6831 place of callback/argument pairs. The new API functions have "_ex" 6832 postfixes and the older functions are reimplemented as wrappers for 6833 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 6834 declarations of the old functions to help (graceful) attempts to 6835 migrate to the new functions. Also, the new key-generation API 6836 functions operate on a caller-supplied key-structure and return 6837 success/failure rather than returning a key or NULL - this is to 6838 help make "keygen" another member function of RSA_METHOD etc. 6839 6840 Example for using the new callback interface: 6841 6842 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 6843 void *my_arg = ...; 6844 BN_GENCB my_cb; 6845 6846 BN_GENCB_set(&my_cb, my_callback, my_arg); 6847 6848 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 6849 /* For the meaning of a, b in calls to my_callback(), see the 6850 * documentation of the function that calls the callback. 6851 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 6852 * my_callback should return 1 if it wants BN_is_prime_ex() 6853 * to continue, or 0 to stop. 6854 */ 6855 6856 [Geoff Thorpe] 6857 6858 *) Change the ZLIB compression method to be stateful, and make it 6859 available to TLS with the number defined in 6860 draft-ietf-tls-compression-04.txt. 6861 [Richard Levitte] 6862 6863 *) Add the ASN.1 structures and functions for CertificatePair, which 6864 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 6865 6866 CertificatePair ::= SEQUENCE { 6867 forward [0] Certificate OPTIONAL, 6868 reverse [1] Certificate OPTIONAL, 6869 -- at least one of the pair shall be present -- } 6870 6871 Also implement the PEM functions to read and write certificate 6872 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 6873 6874 This needed to be defined, mostly for the sake of the LDAP 6875 attribute crossCertificatePair, but may prove useful elsewhere as 6876 well. 6877 [Richard Levitte] 6878 6879 *) Make it possible to inhibit symlinking of shared libraries in 6880 Makefile.shared, for Cygwin's sake. 6881 [Richard Levitte] 6882 6883 *) Extend the BIGNUM API by creating a function 6884 void BN_set_negative(BIGNUM *a, int neg); 6885 and a macro that behave like 6886 int BN_is_negative(const BIGNUM *a); 6887 6888 to avoid the need to access 'a->neg' directly in applications. 6889 [Nils Larsch] 6890 6891 *) Implement fast modular reduction for pseudo-Mersenne primes 6892 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 6893 EC_GROUP_new_curve_GFp() will now automatically use this 6894 if applicable. 6895 [Nils Larsch <nla@trustcenter.de>] 6896 6897 *) Add new lock type (CRYPTO_LOCK_BN). 6898 [Bodo Moeller] 6899 6900 *) Change the ENGINE framework to automatically load engines 6901 dynamically from specific directories unless they could be 6902 found to already be built in or loaded. Move all the 6903 current engines except for the cryptodev one to a new 6904 directory engines/. 6905 The engines in engines/ are built as shared libraries if 6906 the "shared" options was given to ./Configure or ./config. 6907 Otherwise, they are inserted in libcrypto.a. 6908 /usr/local/ssl/engines is the default directory for dynamic 6909 engines, but that can be overridden at configure time through 6910 the usual use of --prefix and/or --openssldir, and at run 6911 time with the environment variable OPENSSL_ENGINES. 6912 [Geoff Thorpe and Richard Levitte] 6913 6914 *) Add Makefile.shared, a helper makefile to build shared 6915 libraries. Adapt Makefile.org. 6916 [Richard Levitte] 6917 6918 *) Add version info to Win32 DLLs. 6919 [Peter 'Luna' Runestig" <peter@runestig.com>] 6920 6921 *) Add new 'medium level' PKCS#12 API. Certificates and keys 6922 can be added using this API to created arbitrary PKCS#12 6923 files while avoiding the low level API. 6924 6925 New options to PKCS12_create(), key or cert can be NULL and 6926 will then be omitted from the output file. The encryption 6927 algorithm NIDs can be set to -1 for no encryption, the mac 6928 iteration count can be set to 0 to omit the mac. 6929 6930 Enhance pkcs12 utility by making the -nokeys and -nocerts 6931 options work when creating a PKCS#12 file. New option -nomac 6932 to omit the mac, NONE can be set for an encryption algorithm. 6933 New code is modified to use the enhanced PKCS12_create() 6934 instead of the low level API. 6935 [Steve Henson] 6936 6937 *) Extend ASN1 encoder to support indefinite length constructed 6938 encoding. This can output sequences tags and octet strings in 6939 this form. Modify pk7_asn1.c to support indefinite length 6940 encoding. This is experimental and needs additional code to 6941 be useful, such as an ASN1 bio and some enhanced streaming 6942 PKCS#7 code. 6943 6944 Extend template encode functionality so that tagging is passed 6945 down to the template encoder. 6946 [Steve Henson] 6947 6948 *) Let 'openssl req' fail if an argument to '-newkey' is not 6949 recognized instead of using RSA as a default. 6950 [Bodo Moeller] 6951 6952 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 6953 As these are not official, they are not included in "ALL"; 6954 the "ECCdraft" ciphersuite group alias can be used to select them. 6955 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 6956 6957 *) Add ECDH engine support. 6958 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 6959 6960 *) Add ECDH in new directory crypto/ecdh/. 6961 [Douglas Stebila (Sun Microsystems Laboratories)] 6962 6963 *) Let BN_rand_range() abort with an error after 100 iterations 6964 without success (which indicates a broken PRNG). 6965 [Bodo Moeller] 6966 6967 *) Change BN_mod_sqrt() so that it verifies that the input value 6968 is really the square of the return value. (Previously, 6969 BN_mod_sqrt would show GIGO behaviour.) 6970 [Bodo Moeller] 6971 6972 *) Add named elliptic curves over binary fields from X9.62, SECG, 6973 and WAP/WTLS; add OIDs that were still missing. 6974 6975 [Sheueling Chang Shantz and Douglas Stebila 6976 (Sun Microsystems Laboratories)] 6977 6978 *) Extend the EC library for elliptic curves over binary fields 6979 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 6980 New EC_METHOD: 6981 6982 EC_GF2m_simple_method 6983 6984 New API functions: 6985 6986 EC_GROUP_new_curve_GF2m 6987 EC_GROUP_set_curve_GF2m 6988 EC_GROUP_get_curve_GF2m 6989 EC_POINT_set_affine_coordinates_GF2m 6990 EC_POINT_get_affine_coordinates_GF2m 6991 EC_POINT_set_compressed_coordinates_GF2m 6992 6993 Point compression for binary fields is disabled by default for 6994 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 6995 enable it). 6996 6997 As binary polynomials are represented as BIGNUMs, various members 6998 of the EC_GROUP and EC_POINT data structures can be shared 6999 between the implementations for prime fields and binary fields; 7000 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 7001 are essentially identical to their ..._GFp counterparts. 7002 (For simplicity, the '..._GFp' prefix has been dropped from 7003 various internal method names.) 7004 7005 An internal 'field_div' method (similar to 'field_mul' and 7006 'field_sqr') has been added; this is used only for binary fields. 7007 7008 [Sheueling Chang Shantz and Douglas Stebila 7009 (Sun Microsystems Laboratories)] 7010 7011 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 7012 through methods ('mul', 'precompute_mult'). 7013 7014 The generic implementations (now internally called 'ec_wNAF_mul' 7015 and 'ec_wNAF_precomputed_mult') remain the default if these 7016 methods are undefined. 7017 7018 [Sheueling Chang Shantz and Douglas Stebila 7019 (Sun Microsystems Laboratories)] 7020 7021 *) New function EC_GROUP_get_degree, which is defined through 7022 EC_METHOD. For curves over prime fields, this returns the bit 7023 length of the modulus. 7024 7025 [Sheueling Chang Shantz and Douglas Stebila 7026 (Sun Microsystems Laboratories)] 7027 7028 *) New functions EC_GROUP_dup, EC_POINT_dup. 7029 (These simply call ..._new and ..._copy). 7030 7031 [Sheueling Chang Shantz and Douglas Stebila 7032 (Sun Microsystems Laboratories)] 7033 7034 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 7035 Polynomials are represented as BIGNUMs (where the sign bit is not 7036 used) in the following functions [macros]: 7037 7038 BN_GF2m_add 7039 BN_GF2m_sub [= BN_GF2m_add] 7040 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 7041 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 7042 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 7043 BN_GF2m_mod_inv 7044 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 7045 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 7046 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 7047 BN_GF2m_cmp [= BN_ucmp] 7048 7049 (Note that only the 'mod' functions are actually for fields GF(2^m). 7050 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 7051 7052 For some functions, an the irreducible polynomial defining a 7053 field can be given as an 'unsigned int[]' with strictly 7054 decreasing elements giving the indices of those bits that are set; 7055 i.e., p[] represents the polynomial 7056 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 7057 where 7058 p[0] > p[1] > ... > p[k] = 0. 7059 This applies to the following functions: 7060 7061 BN_GF2m_mod_arr 7062 BN_GF2m_mod_mul_arr 7063 BN_GF2m_mod_sqr_arr 7064 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 7065 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 7066 BN_GF2m_mod_exp_arr 7067 BN_GF2m_mod_sqrt_arr 7068 BN_GF2m_mod_solve_quad_arr 7069 BN_GF2m_poly2arr 7070 BN_GF2m_arr2poly 7071 7072 Conversion can be performed by the following functions: 7073 7074 BN_GF2m_poly2arr 7075 BN_GF2m_arr2poly 7076 7077 bntest.c has additional tests for binary polynomial arithmetic. 7078 7079 Two implementations for BN_GF2m_mod_div() are available. 7080 The default algorithm simply uses BN_GF2m_mod_inv() and 7081 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 7082 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 7083 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 7084 7085 [Sheueling Chang Shantz and Douglas Stebila 7086 (Sun Microsystems Laboratories)] 7087 7088 *) Add new error code 'ERR_R_DISABLED' that can be used when some 7089 functionality is disabled at compile-time. 7090 [Douglas Stebila <douglas.stebila@sun.com>] 7091 7092 *) Change default behaviour of 'openssl asn1parse' so that more 7093 information is visible when viewing, e.g., a certificate: 7094 7095 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 7096 mode the content of non-printable OCTET STRINGs is output in a 7097 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 7098 avoid the appearance of a printable string. 7099 [Nils Larsch <nla@trustcenter.de>] 7100 7101 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 7102 functions 7103 EC_GROUP_set_asn1_flag() 7104 EC_GROUP_get_asn1_flag() 7105 EC_GROUP_set_point_conversion_form() 7106 EC_GROUP_get_point_conversion_form() 7107 These control ASN1 encoding details: 7108 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 7109 has been set to OPENSSL_EC_NAMED_CURVE. 7110 - Points are encoded in uncompressed form by default; options for 7111 asn1_for are as for point2oct, namely 7112 POINT_CONVERSION_COMPRESSED 7113 POINT_CONVERSION_UNCOMPRESSED 7114 POINT_CONVERSION_HYBRID 7115 7116 Also add 'seed' and 'seed_len' members to EC_GROUP with access 7117 functions 7118 EC_GROUP_set_seed() 7119 EC_GROUP_get0_seed() 7120 EC_GROUP_get_seed_len() 7121 This is used only for ASN1 purposes (so far). 7122 [Nils Larsch <nla@trustcenter.de>] 7123 7124 *) Add 'field_type' member to EC_METHOD, which holds the NID 7125 of the appropriate field type OID. The new function 7126 EC_METHOD_get_field_type() returns this value. 7127 [Nils Larsch <nla@trustcenter.de>] 7128 7129 *) Add functions 7130 EC_POINT_point2bn() 7131 EC_POINT_bn2point() 7132 EC_POINT_point2hex() 7133 EC_POINT_hex2point() 7134 providing useful interfaces to EC_POINT_point2oct() and 7135 EC_POINT_oct2point(). 7136 [Nils Larsch <nla@trustcenter.de>] 7137 7138 *) Change internals of the EC library so that the functions 7139 EC_GROUP_set_generator() 7140 EC_GROUP_get_generator() 7141 EC_GROUP_get_order() 7142 EC_GROUP_get_cofactor() 7143 are implemented directly in crypto/ec/ec_lib.c and not dispatched 7144 to methods, which would lead to unnecessary code duplication when 7145 adding different types of curves. 7146 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 7147 7148 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 7149 arithmetic, and such that modified wNAFs are generated 7150 (which avoid length expansion in many cases). 7151 [Bodo Moeller] 7152 7153 *) Add a function EC_GROUP_check_discriminant() (defined via 7154 EC_METHOD) that verifies that the curve discriminant is non-zero. 7155 7156 Add a function EC_GROUP_check() that makes some sanity tests 7157 on a EC_GROUP, its generator and order. This includes 7158 EC_GROUP_check_discriminant(). 7159 [Nils Larsch <nla@trustcenter.de>] 7160 7161 *) Add ECDSA in new directory crypto/ecdsa/. 7162 7163 Add applications 'openssl ecparam' and 'openssl ecdsa' 7164 (these are based on 'openssl dsaparam' and 'openssl dsa'). 7165 7166 ECDSA support is also included in various other files across the 7167 library. Most notably, 7168 - 'openssl req' now has a '-newkey ecdsa:file' option; 7169 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 7170 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 7171 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 7172 them suitable for ECDSA where domain parameters must be 7173 extracted before the specific public key; 7174 - ECDSA engine support has been added. 7175 [Nils Larsch <nla@trustcenter.de>] 7176 7177 *) Include some named elliptic curves, and add OIDs from X9.62, 7178 SECG, and WAP/WTLS. Each curve can be obtained from the new 7179 function 7180 EC_GROUP_new_by_curve_name(), 7181 and the list of available named curves can be obtained with 7182 EC_get_builtin_curves(). 7183 Also add a 'curve_name' member to EC_GROUP objects, which can be 7184 accessed via 7185 EC_GROUP_set_curve_name() 7186 EC_GROUP_get_curve_name() 7187 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 7188 7189 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 7190 was actually never needed) and in BN_mul(). The removal in BN_mul() 7191 required a small change in bn_mul_part_recursive() and the addition 7192 of the functions bn_cmp_part_words(), bn_sub_part_words() and 7193 bn_add_part_words(), which do the same thing as bn_cmp_words(), 7194 bn_sub_words() and bn_add_words() except they take arrays with 7195 differing sizes. 7196 [Richard Levitte] 7197 7198 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 7199 7200 *) Cleanse PEM buffers before freeing them since they may contain 7201 sensitive data. 7202 [Benjamin Bennett <ben@psc.edu>] 7203 7204 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 7205 a ciphersuite string such as "DEFAULT:RSA" cannot enable 7206 authentication-only ciphersuites. 7207 [Bodo Moeller] 7208 7209 *) Since AES128 and AES256 share a single mask bit in the logic of 7210 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 7211 kludge to work properly if AES128 is available and AES256 isn't. 7212 [Victor Duchovni] 7213 7214 *) Expand security boundary to match 1.1.1 module. 7215 [Steve Henson] 7216 7217 *) Remove redundant features: hash file source, editing of test vectors 7218 modify fipsld to use external fips_premain.c signature. 7219 [Steve Henson] 7220 7221 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 7222 run algorithm test programs. 7223 [Steve Henson] 7224 7225 *) Make algorithm test programs more tolerant of whitespace. 7226 [Steve Henson] 7227 7228 *) Have SSL/TLS server implementation tolerate "mismatched" record 7229 protocol version while receiving ClientHello even if the 7230 ClientHello is fragmented. (The server can't insist on the 7231 particular protocol version it has chosen before the ServerHello 7232 message has informed the client about his choice.) 7233 [Bodo Moeller] 7234 7235 *) Load error codes if they are not already present instead of using a 7236 static variable. This allows them to be cleanly unloaded and reloaded. 7237 [Steve Henson] 7238 7239 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 7240 7241 *) Introduce limits to prevent malicious keys being able to 7242 cause a denial of service. (CVE-2006-2940) 7243 [Steve Henson, Bodo Moeller] 7244 7245 *) Fix ASN.1 parsing of certain invalid structures that can result 7246 in a denial of service. (CVE-2006-2937) [Steve Henson] 7247 7248 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 7249 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 7250 7251 *) Fix SSL client code which could crash if connecting to a 7252 malicious SSLv2 server. (CVE-2006-4343) 7253 [Tavis Ormandy and Will Drewry, Google Security Team] 7254 7255 *) Change ciphersuite string processing so that an explicit 7256 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 7257 will no longer include "AES128-SHA"), and any other similar 7258 ciphersuite (same bitmap) from *other* protocol versions (so that 7259 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 7260 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 7261 changes from 0.9.8b and 0.9.8d. 7262 [Bodo Moeller] 7263 7264 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 7265 7266 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 7267 (CVE-2006-4339) [Ben Laurie and Google Security Team] 7268 7269 *) Change the Unix randomness entropy gathering to use poll() when 7270 possible instead of select(), since the latter has some 7271 undesirable limitations. 7272 [Darryl Miles via Richard Levitte and Bodo Moeller] 7273 7274 *) Disable rogue ciphersuites: 7275 7276 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 7277 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 7278 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 7279 7280 The latter two were purportedly from 7281 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 7282 appear there. 7283 7284 Also deactivate the remaining ciphersuites from 7285 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 7286 unofficial, and the ID has long expired. 7287 [Bodo Moeller] 7288 7289 *) Fix RSA blinding Heisenbug (problems sometimes occurred on 7290 dual-core machines) and other potential thread-safety issues. 7291 [Bodo Moeller] 7292 7293 Changes between 0.9.7i and 0.9.7j [04 May 2006] 7294 7295 *) Adapt fipsld and the build system to link against the validated FIPS 7296 module in FIPS mode. 7297 [Steve Henson] 7298 7299 *) Fixes for VC++ 2005 build under Windows. 7300 [Steve Henson] 7301 7302 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 7303 from a Windows bash shell such as MSYS. It is autodetected from the 7304 "config" script when run from a VC++ environment. Modify standard VC++ 7305 build to use fipscanister.o from the GNU make build. 7306 [Steve Henson] 7307 7308 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 7309 7310 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 7311 The value now differs depending on if you build for FIPS or not. 7312 BEWARE! A program linked with a shared FIPSed libcrypto can't be 7313 safely run with a non-FIPSed libcrypto, as it may crash because of 7314 the difference induced by this change. 7315 [Andy Polyakov] 7316 7317 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 7318 7319 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 7320 (part of SSL_OP_ALL). This option used to disable the 7321 countermeasure against man-in-the-middle protocol-version 7322 rollback in the SSL 2.0 server implementation, which is a bad 7323 idea. (CVE-2005-2969) 7324 7325 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 7326 for Information Security, National Institute of Advanced Industrial 7327 Science and Technology [AIST], Japan)] 7328 7329 *) Minimal support for X9.31 signatures and PSS padding modes. This is 7330 mainly for FIPS compliance and not fully integrated at this stage. 7331 [Steve Henson] 7332 7333 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 7334 the exponentiation using a fixed-length exponent. (Otherwise, 7335 the information leaked through timing could expose the secret key 7336 after many signatures; cf. Bleichenbacher's attack on DSA with 7337 biased k.) 7338 [Bodo Moeller] 7339 7340 *) Make a new fixed-window mod_exp implementation the default for 7341 RSA, DSA, and DH private-key operations so that the sequence of 7342 squares and multiplies and the memory access pattern are 7343 independent of the particular secret key. This will mitigate 7344 cache-timing and potential related attacks. 7345 7346 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 7347 and this is automatically used by BN_mod_exp_mont() if the new flag 7348 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 7349 will use this BN flag for private exponents unless the flag 7350 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 7351 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 7352 7353 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 7354 7355 *) Change the client implementation for SSLv23_method() and 7356 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 7357 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 7358 (Previously, the SSL 2.0 backwards compatible Client Hello 7359 message format would be used even with SSL_OP_NO_SSLv2.) 7360 [Bodo Moeller] 7361 7362 *) Add support for smime-type MIME parameter in S/MIME messages which some 7363 clients need. 7364 [Steve Henson] 7365 7366 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 7367 a threadsafe manner. Modify rsa code to use new function and add calls 7368 to dsa and dh code (which had race conditions before). 7369 [Steve Henson] 7370 7371 *) Include the fixed error library code in the C error file definitions 7372 instead of fixing them up at runtime. This keeps the error code 7373 structures constant. 7374 [Steve Henson] 7375 7376 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 7377 7378 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 7379 OpenSSL 0.9.8.] 7380 7381 *) Fixes for newer kerberos headers. NB: the casts are needed because 7382 the 'length' field is signed on one version and unsigned on another 7383 with no (?) obvious way to tell the difference, without these VC++ 7384 complains. Also the "definition" of FAR (blank) is no longer included 7385 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 7386 some needed definitions. 7387 [Steve Henson] 7388 7389 *) Undo Cygwin change. 7390 [Ulf Möller] 7391 7392 *) Added support for proxy certificates according to RFC 3820. 7393 Because they may be a security thread to unaware applications, 7394 they must be explicitly allowed in run-time. See 7395 docs/HOWTO/proxy_certificates.txt for further information. 7396 [Richard Levitte] 7397 7398 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 7399 7400 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 7401 server and client random values. Previously 7402 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 7403 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 7404 7405 This change has negligible security impact because: 7406 7407 1. Server and client random values still have 24 bytes of pseudo random 7408 data. 7409 7410 2. Server and client random values are sent in the clear in the initial 7411 handshake. 7412 7413 3. The master secret is derived using the premaster secret (48 bytes in 7414 size for static RSA ciphersuites) as well as client server and random 7415 values. 7416 7417 The OpenSSL team would like to thank the UK NISCC for bringing this issue 7418 to our attention. 7419 7420 [Stephen Henson, reported by UK NISCC] 7421 7422 *) Use Windows randomness collection on Cygwin. 7423 [Ulf Möller] 7424 7425 *) Fix hang in EGD/PRNGD query when communication socket is closed 7426 prematurely by EGD/PRNGD. 7427 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014] 7428 7429 *) Prompt for pass phrases when appropriate for PKCS12 input format. 7430 [Steve Henson] 7431 7432 *) Back-port of selected performance improvements from development 7433 branch, as well as improved support for PowerPC platforms. 7434 [Andy Polyakov] 7435 7436 *) Add lots of checks for memory allocation failure, error codes to indicate 7437 failure and freeing up memory if a failure occurs. 7438 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 7439 7440 *) Add new -passin argument to dgst. 7441 [Steve Henson] 7442 7443 *) Perform some character comparisons of different types in X509_NAME_cmp: 7444 this is needed for some certificates that re-encode DNs into UTF8Strings 7445 (in violation of RFC3280) and can't or won't issue name rollover 7446 certificates. 7447 [Steve Henson] 7448 7449 *) Make an explicit check during certificate validation to see that 7450 the CA setting in each certificate on the chain is correct. As a 7451 side effect always do the following basic checks on extensions, 7452 not just when there's an associated purpose to the check: 7453 7454 - if there is an unhandled critical extension (unless the user 7455 has chosen to ignore this fault) 7456 - if the path length has been exceeded (if one is set at all) 7457 - that certain extensions fit the associated purpose (if one has 7458 been given) 7459 [Richard Levitte] 7460 7461 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 7462 7463 *) Avoid a race condition when CRLs are checked in a multi threaded 7464 environment. This would happen due to the reordering of the revoked 7465 entries during signature checking and serial number lookup. Now the 7466 encoding is cached and the serial number sort performed under a lock. 7467 Add new STACK function sk_is_sorted(). 7468 [Steve Henson] 7469 7470 *) Add Delta CRL to the extension code. 7471 [Steve Henson] 7472 7473 *) Various fixes to s3_pkt.c so alerts are sent properly. 7474 [David Holmes <d.holmes@f5.com>] 7475 7476 *) Reduce the chances of duplicate issuer name and serial numbers (in 7477 violation of RFC3280) using the OpenSSL certificate creation utilities. 7478 This is done by creating a random 64 bit value for the initial serial 7479 number when a serial number file is created or when a self signed 7480 certificate is created using 'openssl req -x509'. The initial serial 7481 number file is created using 'openssl x509 -next_serial' in CA.pl 7482 rather than being initialized to 1. 7483 [Steve Henson] 7484 7485 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 7486 7487 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 7488 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 7489 [Joe Orton, Steve Henson] 7490 7491 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 7492 (CVE-2004-0112) 7493 [Joe Orton, Steve Henson] 7494 7495 *) Make it possible to have multiple active certificates with the same 7496 subject in the CA index file. This is done only if the keyword 7497 'unique_subject' is set to 'no' in the main CA section (default 7498 if 'CA_default') of the configuration file. The value is saved 7499 with the database itself in a separate index attribute file, 7500 named like the index file with '.attr' appended to the name. 7501 [Richard Levitte] 7502 7503 *) X509 verify fixes. Disable broken certificate workarounds when 7504 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 7505 keyUsage extension present. Don't accept CRLs with unhandled critical 7506 extensions: since verify currently doesn't process CRL extensions this 7507 rejects a CRL with *any* critical extensions. Add new verify error codes 7508 for these cases. 7509 [Steve Henson] 7510 7511 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 7512 A clarification of RFC2560 will require the use of OCTET STRINGs and 7513 some implementations cannot handle the current raw format. Since OpenSSL 7514 copies and compares OCSP nonces as opaque blobs without any attempt at 7515 parsing them this should not create any compatibility issues. 7516 [Steve Henson] 7517 7518 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 7519 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 7520 this HMAC (and other) operations are several times slower than OpenSSL 7521 < 0.9.7. 7522 [Steve Henson] 7523 7524 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 7525 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 7526 7527 *) Use the correct content when signing type "other". 7528 [Steve Henson] 7529 7530 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 7531 7532 *) Fix various bugs revealed by running the NISCC test suite: 7533 7534 Stop out of bounds reads in the ASN1 code when presented with 7535 invalid tags (CVE-2003-0543 and CVE-2003-0544). 7536 7537 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 7538 7539 If verify callback ignores invalid public key errors don't try to check 7540 certificate signature with the NULL public key. 7541 7542 [Steve Henson] 7543 7544 *) New -ignore_err option in ocsp application to stop the server 7545 exiting on the first error in a request. 7546 [Steve Henson] 7547 7548 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 7549 if the server requested one: as stated in TLS 1.0 and SSL 3.0 7550 specifications. 7551 [Steve Henson] 7552 7553 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 7554 extra data after the compression methods not only for TLS 1.0 7555 but also for SSL 3.0 (as required by the specification). 7556 [Bodo Moeller; problem pointed out by Matthias Loepfe] 7557 7558 *) Change X509_certificate_type() to mark the key as exported/exportable 7559 when it's 512 *bits* long, not 512 bytes. 7560 [Richard Levitte] 7561 7562 *) Change AES_cbc_encrypt() so it outputs exact multiple of 7563 blocks during encryption. 7564 [Richard Levitte] 7565 7566 *) Various fixes to base64 BIO and non blocking I/O. On write 7567 flushes were not handled properly if the BIO retried. On read 7568 data was not being buffered properly and had various logic bugs. 7569 This also affects blocking I/O when the data being decoded is a 7570 certain size. 7571 [Steve Henson] 7572 7573 *) Various S/MIME bugfixes and compatibility changes: 7574 output correct application/pkcs7 MIME type if 7575 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 7576 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 7577 of files as .eml work). Correctly handle very long lines in MIME 7578 parser. 7579 [Steve Henson] 7580 7581 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 7582 7583 *) Countermeasure against the Klima-Pokorny-Rosa extension of 7584 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 7585 a protocol version number mismatch like a decryption error 7586 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 7587 [Bodo Moeller] 7588 7589 *) Turn on RSA blinding by default in the default implementation 7590 to avoid a timing attack. Applications that don't want it can call 7591 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 7592 They would be ill-advised to do so in most cases. 7593 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 7594 7595 *) Change RSA blinding code so that it works when the PRNG is not 7596 seeded (in this case, the secret RSA exponent is abused as 7597 an unpredictable seed -- if it is not unpredictable, there 7598 is no point in blinding anyway). Make RSA blinding thread-safe 7599 by remembering the creator's thread ID in rsa->blinding and 7600 having all other threads use local one-time blinding factors 7601 (this requires more computation than sharing rsa->blinding, but 7602 avoids excessive locking; and if an RSA object is not shared 7603 between threads, blinding will still be very fast). 7604 [Bodo Moeller] 7605 7606 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 7607 ENGINE as defaults for all supported algorithms irrespective of 7608 the 'flags' parameter. 'flags' is now honoured, so applications 7609 should make sure they are passing it correctly. 7610 [Geoff Thorpe] 7611 7612 *) Target "mingw" now allows native Windows code to be generated in 7613 the Cygwin environment as well as with the MinGW compiler. 7614 [Ulf Moeller] 7615 7616 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 7617 7618 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 7619 via timing by performing a MAC computation even if incorrect 7620 block cipher padding has been found. This is a countermeasure 7621 against active attacks where the attacker has to distinguish 7622 between bad padding and a MAC verification error. (CVE-2003-0078) 7623 7624 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 7625 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 7626 Martin Vuagnoux (EPFL, Ilion)] 7627 7628 *) Make the no-err option work as intended. The intention with no-err 7629 is not to have the whole error stack handling routines removed from 7630 libcrypto, it's only intended to remove all the function name and 7631 reason texts, thereby removing some of the footprint that may not 7632 be interesting if those errors aren't displayed anyway. 7633 7634 NOTE: it's still possible for any application or module to have its 7635 own set of error texts inserted. The routines are there, just not 7636 used by default when no-err is given. 7637 [Richard Levitte] 7638 7639 *) Add support for FreeBSD on IA64. 7640 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 7641 7642 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 7643 Kerberos function mit_des_cbc_cksum(). Before this change, 7644 the value returned by DES_cbc_cksum() was like the one from 7645 mit_des_cbc_cksum(), except the bytes were swapped. 7646 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 7647 7648 *) Allow an application to disable the automatic SSL chain building. 7649 Before this a rather primitive chain build was always performed in 7650 ssl3_output_cert_chain(): an application had no way to send the 7651 correct chain if the automatic operation produced an incorrect result. 7652 7653 Now the chain builder is disabled if either: 7654 7655 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 7656 7657 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 7658 7659 The reasoning behind this is that an application would not want the 7660 auto chain building to take place if extra chain certificates are 7661 present and it might also want a means of sending no additional 7662 certificates (for example the chain has two certificates and the 7663 root is omitted). 7664 [Steve Henson] 7665 7666 *) Add the possibility to build without the ENGINE framework. 7667 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 7668 7669 *) Under Win32 gmtime() can return NULL: check return value in 7670 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 7671 [Steve Henson] 7672 7673 *) DSA routines: under certain error conditions uninitialized BN objects 7674 could be freed. Solution: make sure initialization is performed early 7675 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 7676 Nils Larsch <nla@trustcenter.de> via PR#459) 7677 [Lutz Jaenicke] 7678 7679 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 7680 checked on reconnect on the client side, therefore session resumption 7681 could still fail with a "ssl session id is different" error. This 7682 behaviour is masked when SSL_OP_ALL is used due to 7683 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 7684 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 7685 followup to PR #377. 7686 [Lutz Jaenicke] 7687 7688 *) IA-32 assembler support enhancements: unified ELF targets, support 7689 for SCO/Caldera platforms, fix for Cygwin shared build. 7690 [Andy Polyakov] 7691 7692 *) Add support for FreeBSD on sparc64. As a consequence, support for 7693 FreeBSD on non-x86 processors is separate from x86 processors on 7694 the config script, much like the NetBSD support. 7695 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 7696 7697 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 7698 7699 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 7700 OpenSSL 0.9.7.] 7701 7702 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 7703 code (06) was taken as the first octet of the session ID and the last 7704 octet was ignored consequently. As a result SSLv2 client side session 7705 caching could not have worked due to the session ID mismatch between 7706 client and server. 7707 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 7708 PR #377. 7709 [Lutz Jaenicke] 7710 7711 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 7712 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 7713 removed entirely. 7714 [Richard Levitte] 7715 7716 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 7717 seems that in spite of existing for more than a year, many application 7718 author have done nothing to provide the necessary callbacks, which 7719 means that this particular engine will not work properly anywhere. 7720 This is a very unfortunate situation which forces us, in the name 7721 of usability, to give the hw_ncipher.c a static lock, which is part 7722 of libcrypto. 7723 NOTE: This is for the 0.9.7 series ONLY. This hack will never 7724 appear in 0.9.8 or later. We EXPECT application authors to have 7725 dealt properly with this when 0.9.8 is released (unless we actually 7726 make such changes in the libcrypto locking code that changes will 7727 have to be made anyway). 7728 [Richard Levitte] 7729 7730 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 7731 octets have been read, EOF or an error occurs. Without this change 7732 some truncated ASN1 structures will not produce an error. 7733 [Steve Henson] 7734 7735 *) Disable Heimdal support, since it hasn't been fully implemented. 7736 Still give the possibility to force the use of Heimdal, but with 7737 warnings and a request that patches get sent to openssl-dev. 7738 [Richard Levitte] 7739 7740 *) Add the VC-CE target, introduce the WINCE sysname, and add 7741 INSTALL.WCE and appropriate conditionals to make it build. 7742 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 7743 7744 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 7745 cygssl-x.y.z.dll, where x, y and z are the major, minor and 7746 edit numbers of the version. 7747 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 7748 7749 *) Introduce safe string copy and catenation functions 7750 (BUF_strlcpy() and BUF_strlcat()). 7751 [Ben Laurie (CHATS) and Richard Levitte] 7752 7753 *) Avoid using fixed-size buffers for one-line DNs. 7754 [Ben Laurie (CHATS)] 7755 7756 *) Add BUF_MEM_grow_clean() to avoid information leakage when 7757 resizing buffers containing secrets, and use where appropriate. 7758 [Ben Laurie (CHATS)] 7759 7760 *) Avoid using fixed size buffers for configuration file location. 7761 [Ben Laurie (CHATS)] 7762 7763 *) Avoid filename truncation for various CA files. 7764 [Ben Laurie (CHATS)] 7765 7766 *) Use sizeof in preference to magic numbers. 7767 [Ben Laurie (CHATS)] 7768 7769 *) Avoid filename truncation in cert requests. 7770 [Ben Laurie (CHATS)] 7771 7772 *) Add assertions to check for (supposedly impossible) buffer 7773 overflows. 7774 [Ben Laurie (CHATS)] 7775 7776 *) Don't cache truncated DNS entries in the local cache (this could 7777 potentially lead to a spoofing attack). 7778 [Ben Laurie (CHATS)] 7779 7780 *) Fix various buffers to be large enough for hex/decimal 7781 representations in a platform independent manner. 7782 [Ben Laurie (CHATS)] 7783 7784 *) Add CRYPTO_realloc_clean() to avoid information leakage when 7785 resizing buffers containing secrets, and use where appropriate. 7786 [Ben Laurie (CHATS)] 7787 7788 *) Add BIO_indent() to avoid much slightly worrying code to do 7789 indents. 7790 [Ben Laurie (CHATS)] 7791 7792 *) Convert sprintf()/BIO_puts() to BIO_printf(). 7793 [Ben Laurie (CHATS)] 7794 7795 *) buffer_gets() could terminate with the buffer only half 7796 full. Fixed. 7797 [Ben Laurie (CHATS)] 7798 7799 *) Add assertions to prevent user-supplied crypto functions from 7800 overflowing internal buffers by having large block sizes, etc. 7801 [Ben Laurie (CHATS)] 7802 7803 *) New OPENSSL_assert() macro (similar to assert(), but enabled 7804 unconditionally). 7805 [Ben Laurie (CHATS)] 7806 7807 *) Eliminate unused copy of key in RC4. 7808 [Ben Laurie (CHATS)] 7809 7810 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 7811 [Ben Laurie (CHATS)] 7812 7813 *) Fix off-by-one error in EGD path. 7814 [Ben Laurie (CHATS)] 7815 7816 *) If RANDFILE path is too long, ignore instead of truncating. 7817 [Ben Laurie (CHATS)] 7818 7819 *) Eliminate unused and incorrectly sized X.509 structure 7820 CBCParameter. 7821 [Ben Laurie (CHATS)] 7822 7823 *) Eliminate unused and dangerous function knumber(). 7824 [Ben Laurie (CHATS)] 7825 7826 *) Eliminate unused and dangerous structure, KSSL_ERR. 7827 [Ben Laurie (CHATS)] 7828 7829 *) Protect against overlong session ID context length in an encoded 7830 session object. Since these are local, this does not appear to be 7831 exploitable. 7832 [Ben Laurie (CHATS)] 7833 7834 *) Change from security patch (see 0.9.6e below) that did not affect 7835 the 0.9.6 release series: 7836 7837 Remote buffer overflow in SSL3 protocol - an attacker could 7838 supply an oversized master key in Kerberos-enabled versions. 7839 (CVE-2002-0657) 7840 [Ben Laurie (CHATS)] 7841 7842 *) Change the SSL kerb5 codes to match RFC 2712. 7843 [Richard Levitte] 7844 7845 *) Make -nameopt work fully for req and add -reqopt switch. 7846 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 7847 7848 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 7849 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 7850 7851 *) Make sure tests can be performed even if the corresponding algorithms 7852 have been removed entirely. This was also the last step to make 7853 OpenSSL compilable with DJGPP under all reasonable conditions. 7854 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 7855 7856 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 7857 to allow version independent disabling of normally unselected ciphers, 7858 which may be activated as a side-effect of selecting a single cipher. 7859 7860 (E.g., cipher list string "RSA" enables ciphersuites that are left 7861 out of "ALL" because they do not provide symmetric encryption. 7862 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 7863 [Lutz Jaenicke, Bodo Moeller] 7864 7865 *) Add appropriate support for separate platform-dependent build 7866 directories. The recommended way to make a platform-dependent 7867 build directory is the following (tested on Linux), maybe with 7868 some local tweaks: 7869 7870 # Place yourself outside of the OpenSSL source tree. In 7871 # this example, the environment variable OPENSSL_SOURCE 7872 # is assumed to contain the absolute OpenSSL source directory. 7873 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 7874 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 7875 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 7876 mkdir -p `dirname $F` 7877 ln -s $OPENSSL_SOURCE/$F $F 7878 done 7879 7880 To be absolutely sure not to disturb the source tree, a "make clean" 7881 is a good thing. If it isn't successful, don't worry about it, 7882 it probably means the source directory is very clean. 7883 [Richard Levitte] 7884 7885 *) Make sure any ENGINE control commands make local copies of string 7886 pointers passed to them whenever necessary. Otherwise it is possible 7887 the caller may have overwritten (or deallocated) the original string 7888 data when a later ENGINE operation tries to use the stored values. 7889 [Götz Babin-Ebell <babinebell@trustcenter.de>] 7890 7891 *) Improve diagnostics in file reading and command-line digests. 7892 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 7893 7894 *) Add AES modes CFB and OFB to the object database. Correct an 7895 error in AES-CFB decryption. 7896 [Richard Levitte] 7897 7898 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 7899 allows existing EVP_CIPHER_CTX structures to be reused after 7900 calling EVP_*Final(). This behaviour is used by encryption 7901 BIOs and some applications. This has the side effect that 7902 applications must explicitly clean up cipher contexts with 7903 EVP_CIPHER_CTX_cleanup() or they will leak memory. 7904 [Steve Henson] 7905 7906 *) Check the values of dna and dnb in bn_mul_recursive before calling 7907 bn_mul_comba (a non zero value means the a or b arrays do not contain 7908 n2 elements) and fallback to bn_mul_normal if either is not zero. 7909 [Steve Henson] 7910 7911 *) Fix escaping of non-ASCII characters when using the -subj option 7912 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 7913 [Lutz Jaenicke] 7914 7915 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 7916 form for "surname", serialNumber has no short form. 7917 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 7918 therefore remove "mail" short name for "internet 7". 7919 The OID for unique identifiers in X509 certificates is 7920 x500UniqueIdentifier, not uniqueIdentifier. 7921 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 7922 [Lutz Jaenicke] 7923 7924 *) Add an "init" command to the ENGINE config module and auto initialize 7925 ENGINEs. Without any "init" command the ENGINE will be initialized 7926 after all ctrl commands have been executed on it. If init=1 the 7927 ENGINE is initialized at that point (ctrls before that point are run 7928 on the uninitialized ENGINE and after on the initialized one). If 7929 init=0 then the ENGINE will not be initialized at all. 7930 [Steve Henson] 7931 7932 *) Fix the 'app_verify_callback' interface so that the user-defined 7933 argument is actually passed to the callback: In the 7934 SSL_CTX_set_cert_verify_callback() prototype, the callback 7935 declaration has been changed from 7936 int (*cb)() 7937 into 7938 int (*cb)(X509_STORE_CTX *,void *); 7939 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 7940 i=s->ctx->app_verify_callback(&ctx) 7941 has been changed into 7942 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 7943 7944 To update applications using SSL_CTX_set_cert_verify_callback(), 7945 a dummy argument can be added to their callback functions. 7946 [D. K. Smetters <smetters@parc.xerox.com>] 7947 7948 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 7949 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 7950 7951 *) Add and OPENSSL_LOAD_CONF define which will cause 7952 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 7953 This allows older applications to transparently support certain 7954 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 7955 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 7956 load the config file and OPENSSL_add_all_algorithms_conf() which will 7957 always load it have also been added. 7958 [Steve Henson] 7959 7960 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 7961 Adjust NIDs and EVP layer. 7962 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 7963 7964 *) Config modules support in openssl utility. 7965 7966 Most commands now load modules from the config file, 7967 though in a few (such as version) this isn't done 7968 because it couldn't be used for anything. 7969 7970 In the case of ca and req the config file used is 7971 the same as the utility itself: that is the -config 7972 command line option can be used to specify an 7973 alternative file. 7974 [Steve Henson] 7975 7976 *) Move default behaviour from OPENSSL_config(). If appname is NULL 7977 use "openssl_conf" if filename is NULL use default openssl config file. 7978 [Steve Henson] 7979 7980 *) Add an argument to OPENSSL_config() to allow the use of an alternative 7981 config section name. Add a new flag to tolerate a missing config file 7982 and move code to CONF_modules_load_file(). 7983 [Steve Henson] 7984 7985 *) Support for crypto accelerator cards from Accelerated Encryption 7986 Processing, www.aep.ie. (Use engine 'aep') 7987 The support was copied from 0.9.6c [engine] and adapted/corrected 7988 to work with the new engine framework. 7989 [AEP Inc. and Richard Levitte] 7990 7991 *) Support for SureWare crypto accelerator cards from Baltimore 7992 Technologies. (Use engine 'sureware') 7993 The support was copied from 0.9.6c [engine] and adapted 7994 to work with the new engine framework. 7995 [Richard Levitte] 7996 7997 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 7998 make the newer ENGINE framework commands for the CHIL engine work. 7999 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 8000 8001 *) Make it possible to produce shared libraries on ReliantUNIX. 8002 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 8003 8004 *) Add the configuration target debug-linux-ppro. 8005 Make 'openssl rsa' use the general key loading routines 8006 implemented in apps.c, and make those routines able to 8007 handle the key format FORMAT_NETSCAPE and the variant 8008 FORMAT_IISSGC. 8009 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 8010 8011 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 8012 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 8013 8014 *) Add -keyform to rsautl, and document -engine. 8015 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 8016 8017 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 8018 BIO_R_NO_SUCH_FILE error code rather than the generic 8019 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 8020 [Ben Laurie] 8021 8022 *) Add new functions 8023 ERR_peek_last_error 8024 ERR_peek_last_error_line 8025 ERR_peek_last_error_line_data. 8026 These are similar to 8027 ERR_peek_error 8028 ERR_peek_error_line 8029 ERR_peek_error_line_data, 8030 but report on the latest error recorded rather than the first one 8031 still in the error queue. 8032 [Ben Laurie, Bodo Moeller] 8033 8034 *) default_algorithms option in ENGINE config module. This allows things 8035 like: 8036 default_algorithms = ALL 8037 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 8038 [Steve Henson] 8039 8040 *) Preliminary ENGINE config module. 8041 [Steve Henson] 8042 8043 *) New experimental application configuration code. 8044 [Steve Henson] 8045 8046 *) Change the AES code to follow the same name structure as all other 8047 symmetric ciphers, and behave the same way. Move everything to 8048 the directory crypto/aes, thereby obsoleting crypto/rijndael. 8049 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 8050 8051 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 8052 [Ben Laurie and Theo de Raadt] 8053 8054 *) Add option to output public keys in req command. 8055 [Massimiliano Pala madwolf@openca.org] 8056 8057 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 8058 (up to about 10% better than before for P-192 and P-224). 8059 [Bodo Moeller] 8060 8061 *) New functions/macros 8062 8063 SSL_CTX_set_msg_callback(ctx, cb) 8064 SSL_CTX_set_msg_callback_arg(ctx, arg) 8065 SSL_set_msg_callback(ssl, cb) 8066 SSL_set_msg_callback_arg(ssl, arg) 8067 8068 to request calling a callback function 8069 8070 void cb(int write_p, int version, int content_type, 8071 const void *buf, size_t len, SSL *ssl, void *arg) 8072 8073 whenever a protocol message has been completely received 8074 (write_p == 0) or sent (write_p == 1). Here 'version' is the 8075 protocol version according to which the SSL library interprets 8076 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 8077 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 8078 the content type as defined in the SSL 3.0/TLS 1.0 protocol 8079 specification (change_cipher_spec(20), alert(21), handshake(22)). 8080 'buf' and 'len' point to the actual message, 'ssl' to the 8081 SSL object, and 'arg' is the application-defined value set by 8082 SSL[_CTX]_set_msg_callback_arg(). 8083 8084 'openssl s_client' and 'openssl s_server' have new '-msg' options 8085 to enable a callback that displays all protocol messages. 8086 [Bodo Moeller] 8087 8088 *) Change the shared library support so shared libraries are built as 8089 soon as the corresponding static library is finished, and thereby get 8090 openssl and the test programs linked against the shared library. 8091 This still only happens when the keyword "shard" has been given to 8092 the configuration scripts. 8093 8094 NOTE: shared library support is still an experimental thing, and 8095 backward binary compatibility is still not guaranteed. 8096 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 8097 8098 *) Add support for Subject Information Access extension. 8099 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 8100 8101 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 8102 additional bytes when new memory had to be allocated, not just 8103 when reusing an existing buffer. 8104 [Bodo Moeller] 8105 8106 *) New command line and configuration option 'utf8' for the req command. 8107 This allows field values to be specified as UTF8 strings. 8108 [Steve Henson] 8109 8110 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 8111 runs for the former and machine-readable output for the latter. 8112 [Ben Laurie] 8113 8114 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 8115 of the e-mail address in the DN (i.e., it will go into a certificate 8116 extension only). The new configuration file option 'email_in_dn = no' 8117 has the same effect. 8118 [Massimiliano Pala madwolf@openca.org] 8119 8120 *) Change all functions with names starting with des_ to be starting 8121 with DES_ instead. Add wrappers that are compatible with libdes, 8122 but are named _ossl_old_des_*. Finally, add macros that map the 8123 des_* symbols to the corresponding _ossl_old_des_* if libdes 8124 compatibility is desired. If OpenSSL 0.9.6c compatibility is 8125 desired, the des_* symbols will be mapped to DES_*, with one 8126 exception. 8127 8128 Since we provide two compatibility mappings, the user needs to 8129 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 8130 compatibility is desired. The default (i.e., when that macro 8131 isn't defined) is OpenSSL 0.9.6c compatibility. 8132 8133 There are also macros that enable and disable the support of old 8134 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 8135 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 8136 are defined, the default will apply: to support the old des routines. 8137 8138 In either case, one must include openssl/des.h to get the correct 8139 definitions. Do not try to just include openssl/des_old.h, that 8140 won't work. 8141 8142 NOTE: This is a major break of an old API into a new one. Software 8143 authors are encouraged to switch to the DES_ style functions. Some 8144 time in the future, des_old.h and the libdes compatibility functions 8145 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 8146 default), and then completely removed. 8147 [Richard Levitte] 8148 8149 *) Test for certificates which contain unsupported critical extensions. 8150 If such a certificate is found during a verify operation it is 8151 rejected by default: this behaviour can be overridden by either 8152 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 8153 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 8154 X509_supported_extension() has also been added which returns 1 if a 8155 particular extension is supported. 8156 [Steve Henson] 8157 8158 *) Modify the behaviour of EVP cipher functions in similar way to digests 8159 to retain compatibility with existing code. 8160 [Steve Henson] 8161 8162 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 8163 compatibility with existing code. In particular the 'ctx' parameter does 8164 not have to be to be initialized before the call to EVP_DigestInit() and 8165 it is tidied up after a call to EVP_DigestFinal(). New function 8166 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 8167 EVP_MD_CTX_copy() changed to not require the destination to be 8168 initialized valid and new function EVP_MD_CTX_copy_ex() added which 8169 requires the destination to be valid. 8170 8171 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 8172 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 8173 [Steve Henson] 8174 8175 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 8176 so that complete 'Handshake' protocol structures are kept in memory 8177 instead of overwriting 'msg_type' and 'length' with 'body' data. 8178 [Bodo Moeller] 8179 8180 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 8181 [Massimo Santin via Richard Levitte] 8182 8183 *) Major restructuring to the underlying ENGINE code. This includes 8184 reduction of linker bloat, separation of pure "ENGINE" manipulation 8185 (initialisation, etc) from functionality dealing with implementations 8186 of specific crypto interfaces. This change also introduces integrated 8187 support for symmetric ciphers and digest implementations - so ENGINEs 8188 can now accelerate these by providing EVP_CIPHER and EVP_MD 8189 implementations of their own. This is detailed in crypto/engine/README 8190 as it couldn't be adequately described here. However, there are a few 8191 API changes worth noting - some RSA, DSA, DH, and RAND functions that 8192 were changed in the original introduction of ENGINE code have now 8193 reverted back - the hooking from this code to ENGINE is now a good 8194 deal more passive and at run-time, operations deal directly with 8195 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 8196 dereferencing through an ENGINE pointer any more. Also, the ENGINE 8197 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 8198 they were not being used by the framework as there is no concept of a 8199 BIGNUM_METHOD and they could not be generalised to the new 8200 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 8201 ENGINE_cpy() has been removed as it cannot be consistently defined in 8202 the new code. 8203 [Geoff Thorpe] 8204 8205 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 8206 [Steve Henson] 8207 8208 *) Change mkdef.pl to sort symbols that get the same entry number, 8209 and make sure the automatically generated functions ERR_load_* 8210 become part of libeay.num as well. 8211 [Richard Levitte] 8212 8213 *) New function SSL_renegotiate_pending(). This returns true once 8214 renegotiation has been requested (either SSL_renegotiate() call 8215 or HelloRequest/ClientHello received from the peer) and becomes 8216 false once a handshake has been completed. 8217 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 8218 sends a HelloRequest, but does not ensure that a handshake takes 8219 place. SSL_renegotiate_pending() is useful for checking if the 8220 client has followed the request.) 8221 [Bodo Moeller] 8222 8223 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 8224 By default, clients may request session resumption even during 8225 renegotiation (if session ID contexts permit); with this option, 8226 session resumption is possible only in the first handshake. 8227 8228 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 8229 more bits available for options that should not be part of 8230 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 8231 [Bodo Moeller] 8232 8233 *) Add some demos for certificate and certificate request creation. 8234 [Steve Henson] 8235 8236 *) Make maximum certificate chain size accepted from the peer application 8237 settable (SSL*_get/set_max_cert_list()), as proposed by 8238 "Douglas E. Engert" <deengert@anl.gov>. 8239 [Lutz Jaenicke] 8240 8241 *) Add support for shared libraries for Unixware-7 8242 (Boyd Lynn Gerber <gerberb@zenez.com>). 8243 [Lutz Jaenicke] 8244 8245 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 8246 be done prior to destruction. Use this to unload error strings from 8247 ENGINEs that load their own error strings. NB: This adds two new API 8248 functions to "get" and "set" this destroy handler in an ENGINE. 8249 [Geoff Thorpe] 8250 8251 *) Alter all existing ENGINE implementations (except "openssl" and 8252 "openbsd") to dynamically instantiate their own error strings. This 8253 makes them more flexible to be built both as statically-linked ENGINEs 8254 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 8255 Also, add stub code to each that makes building them as self-contained 8256 shared-libraries easier (see README.ENGINE). 8257 [Geoff Thorpe] 8258 8259 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 8260 implementations into applications that are completely implemented in 8261 self-contained shared-libraries. The "dynamic" ENGINE exposes control 8262 commands that can be used to configure what shared-library to load and 8263 to control aspects of the way it is handled. Also, made an update to 8264 the README.ENGINE file that brings its information up-to-date and 8265 provides some information and instructions on the "dynamic" ENGINE 8266 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 8267 [Geoff Thorpe] 8268 8269 *) Make it possible to unload ranges of ERR strings with a new 8270 "ERR_unload_strings" function. 8271 [Geoff Thorpe] 8272 8273 *) Add a copy() function to EVP_MD. 8274 [Ben Laurie] 8275 8276 *) Make EVP_MD routines take a context pointer instead of just the 8277 md_data void pointer. 8278 [Ben Laurie] 8279 8280 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 8281 that the digest can only process a single chunk of data 8282 (typically because it is provided by a piece of 8283 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 8284 is only going to provide a single chunk of data, and hence the 8285 framework needn't accumulate the data for oneshot drivers. 8286 [Ben Laurie] 8287 8288 *) As with "ERR", make it possible to replace the underlying "ex_data" 8289 functions. This change also alters the storage and management of global 8290 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 8291 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 8292 index counters. The API functions that use this state have been changed 8293 to take a "class_index" rather than pointers to the class's local STACK 8294 and counter, and there is now an API function to dynamically create new 8295 classes. This centralisation allows us to (a) plug a lot of the 8296 thread-safety problems that existed, and (b) makes it possible to clean 8297 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 8298 such data would previously have always leaked in application code and 8299 workarounds were in place to make the memory debugging turn a blind eye 8300 to it. Application code that doesn't use this new function will still 8301 leak as before, but their memory debugging output will announce it now 8302 rather than letting it slide. 8303 8304 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 8305 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 8306 has a return value to indicate success or failure. 8307 [Geoff Thorpe] 8308 8309 *) Make it possible to replace the underlying "ERR" functions such that the 8310 global state (2 LHASH tables and 2 locks) is only used by the "default" 8311 implementation. This change also adds two functions to "get" and "set" 8312 the implementation prior to it being automatically set the first time 8313 any other ERR function takes place. Ie. an application can call "get", 8314 pass the return value to a module it has just loaded, and that module 8315 can call its own "set" function using that value. This means the 8316 module's "ERR" operations will use (and modify) the error state in the 8317 application and not in its own statically linked copy of OpenSSL code. 8318 [Geoff Thorpe] 8319 8320 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 8321 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 8322 the operation, and provides a more encapsulated way for external code 8323 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 8324 to use these functions rather than manually incrementing the counts. 8325 8326 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 8327 [Geoff Thorpe] 8328 8329 *) Add EVP test program. 8330 [Ben Laurie] 8331 8332 *) Add symmetric cipher support to ENGINE. Expect the API to change! 8333 [Ben Laurie] 8334 8335 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 8336 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 8337 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 8338 These allow a CRL to be built without having to access X509_CRL fields 8339 directly. Modify 'ca' application to use new functions. 8340 [Steve Henson] 8341 8342 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 8343 bug workarounds. Rollback attack detection is a security feature. 8344 The problem will only arise on OpenSSL servers when TLSv1 is not 8345 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 8346 Software authors not wanting to support TLSv1 will have special reasons 8347 for their choice and can explicitly enable this option. 8348 [Bodo Moeller, Lutz Jaenicke] 8349 8350 *) Rationalise EVP so it can be extended: don't include a union of 8351 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 8352 (similar to those existing for EVP_CIPHER_CTX). 8353 Usage example: 8354 8355 EVP_MD_CTX md; 8356 8357 EVP_MD_CTX_init(&md); /* new function call */ 8358 EVP_DigestInit(&md, EVP_sha1()); 8359 EVP_DigestUpdate(&md, in, len); 8360 EVP_DigestFinal(&md, out, NULL); 8361 EVP_MD_CTX_cleanup(&md); /* new function call */ 8362 8363 [Ben Laurie] 8364 8365 *) Make DES key schedule conform to the usual scheme, as well as 8366 correcting its structure. This means that calls to DES functions 8367 now have to pass a pointer to a des_key_schedule instead of a 8368 plain des_key_schedule (which was actually always a pointer 8369 anyway): E.g., 8370 8371 des_key_schedule ks; 8372 8373 des_set_key_checked(..., &ks); 8374 des_ncbc_encrypt(..., &ks, ...); 8375 8376 (Note that a later change renames 'des_...' into 'DES_...'.) 8377 [Ben Laurie] 8378 8379 *) Initial reduction of linker bloat: the use of some functions, such as 8380 PEM causes large amounts of unused functions to be linked in due to 8381 poor organisation. For example pem_all.c contains every PEM function 8382 which has a knock on effect of linking in large amounts of (unused) 8383 ASN1 code. Grouping together similar functions and splitting unrelated 8384 functions prevents this. 8385 [Steve Henson] 8386 8387 *) Cleanup of EVP macros. 8388 [Ben Laurie] 8389 8390 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 8391 correct _ecb suffix. 8392 [Ben Laurie] 8393 8394 *) Add initial OCSP responder support to ocsp application. The 8395 revocation information is handled using the text based index 8396 use by the ca application. The responder can either handle 8397 requests generated internally, supplied in files (for example 8398 via a CGI script) or using an internal minimal server. 8399 [Steve Henson] 8400 8401 *) Add configuration choices to get zlib compression for TLS. 8402 [Richard Levitte] 8403 8404 *) Changes to Kerberos SSL for RFC 2712 compliance: 8405 1. Implemented real KerberosWrapper, instead of just using 8406 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 8407 2. Implemented optional authenticator field of KerberosWrapper. 8408 8409 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 8410 and authenticator structs; see crypto/krb5/. 8411 8412 Generalized Kerberos calls to support multiple Kerberos libraries. 8413 [Vern Staats <staatsvr@asc.hpc.mil>, 8414 Jeffrey Altman <jaltman@columbia.edu> 8415 via Richard Levitte] 8416 8417 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 8418 already does with RSA. testdsa.h now has 'priv_key/pub_key' 8419 values for each of the key sizes rather than having just 8420 parameters (and 'speed' generating keys each time). 8421 [Geoff Thorpe] 8422 8423 *) Speed up EVP routines. 8424 Before: 8425encrypt 8426type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 8427des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 8428des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 8429des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 8430decrypt 8431des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 8432des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 8433des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 8434 After: 8435encrypt 8436des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 8437decrypt 8438des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 8439 [Ben Laurie] 8440 8441 *) Added the OS2-EMX target. 8442 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 8443 8444 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 8445 to support NCONF routines in extension code. New function CONF_set_nconf() 8446 to allow functions which take an NCONF to also handle the old LHASH 8447 structure: this means that the old CONF compatible routines can be 8448 retained (in particular wrt extensions) without having to duplicate the 8449 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 8450 [Steve Henson] 8451 8452 *) Enhance the general user interface with mechanisms for inner control 8453 and with possibilities to have yes/no kind of prompts. 8454 [Richard Levitte] 8455 8456 *) Change all calls to low level digest routines in the library and 8457 applications to use EVP. Add missing calls to HMAC_cleanup() and 8458 don't assume HMAC_CTX can be copied using memcpy(). 8459 [Verdon Walker <VWalker@novell.com>, Steve Henson] 8460 8461 *) Add the possibility to control engines through control names but with 8462 arbitrary arguments instead of just a string. 8463 Change the key loaders to take a UI_METHOD instead of a callback 8464 function pointer. NOTE: this breaks binary compatibility with earlier 8465 versions of OpenSSL [engine]. 8466 Adapt the nCipher code for these new conditions and add a card insertion 8467 callback. 8468 [Richard Levitte] 8469 8470 *) Enhance the general user interface with mechanisms to better support 8471 dialog box interfaces, application-defined prompts, the possibility 8472 to use defaults (for example default passwords from somewhere else) 8473 and interrupts/cancellations. 8474 [Richard Levitte] 8475 8476 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 8477 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 8478 [Steve Henson] 8479 8480 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 8481 tidy up some unnecessarily weird code in 'sk_new()'). 8482 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 8483 8484 *) Change the key loading routines for ENGINEs to use the same kind 8485 callback (pem_password_cb) as all other routines that need this 8486 kind of callback. 8487 [Richard Levitte] 8488 8489 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 8490 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 8491 than this minimum value is recommended. 8492 [Lutz Jaenicke] 8493 8494 *) New random seeder for OpenVMS, using the system process statistics 8495 that are easily reachable. 8496 [Richard Levitte] 8497 8498 *) Windows apparently can't transparently handle global 8499 variables defined in DLLs. Initialisations such as: 8500 8501 const ASN1_ITEM *it = &ASN1_INTEGER_it; 8502 8503 won't compile. This is used by the any applications that need to 8504 declare their own ASN1 modules. This was fixed by adding the option 8505 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 8506 needed for static libraries under Win32. 8507 [Steve Henson] 8508 8509 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 8510 setting of purpose and trust fields. New X509_STORE trust and 8511 purpose functions and tidy up setting in other SSL functions. 8512 [Steve Henson] 8513 8514 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 8515 structure. These are inherited by X509_STORE_CTX when it is 8516 initialised. This allows various defaults to be set in the 8517 X509_STORE structure (such as flags for CRL checking and custom 8518 purpose or trust settings) for functions which only use X509_STORE_CTX 8519 internally such as S/MIME. 8520 8521 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 8522 trust settings if they are not set in X509_STORE. This allows X509_STORE 8523 purposes and trust (in S/MIME for example) to override any set by default. 8524 8525 Add command line options for CRL checking to smime, s_client and s_server 8526 applications. 8527 [Steve Henson] 8528 8529 *) Initial CRL based revocation checking. If the CRL checking flag(s) 8530 are set then the CRL is looked up in the X509_STORE structure and 8531 its validity and signature checked, then if the certificate is found 8532 in the CRL the verify fails with a revoked error. 8533 8534 Various new CRL related callbacks added to X509_STORE_CTX structure. 8535 8536 Command line options added to 'verify' application to support this. 8537 8538 This needs some additional work, such as being able to handle multiple 8539 CRLs with different times, extension based lookup (rather than just 8540 by subject name) and ultimately more complete V2 CRL extension 8541 handling. 8542 [Steve Henson] 8543 8544 *) Add a general user interface API (crypto/ui/). This is designed 8545 to replace things like des_read_password and friends (backward 8546 compatibility functions using this new API are provided). 8547 The purpose is to remove prompting functions from the DES code 8548 section as well as provide for prompting through dialog boxes in 8549 a window system and the like. 8550 [Richard Levitte] 8551 8552 *) Add "ex_data" support to ENGINE so implementations can add state at a 8553 per-structure level rather than having to store it globally. 8554 [Geoff] 8555 8556 *) Make it possible for ENGINE structures to be copied when retrieved by 8557 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 8558 This causes the "original" ENGINE structure to act like a template, 8559 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 8560 operational state can be localised to each ENGINE structure, despite the 8561 fact they all share the same "methods". New ENGINE structures returned in 8562 this case have no functional references and the return value is the single 8563 structural reference. This matches the single structural reference returned 8564 by ENGINE_by_id() normally, when it is incremented on the pre-existing 8565 ENGINE structure. 8566 [Geoff] 8567 8568 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 8569 needs to match any other type at all we need to manually clear the 8570 tag cache. 8571 [Steve Henson] 8572 8573 *) Changes to the "openssl engine" utility to include; 8574 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 8575 about an ENGINE's available control commands. 8576 - executing control commands from command line arguments using the 8577 '-pre' and '-post' switches. '-post' is only used if '-t' is 8578 specified and the ENGINE is successfully initialised. The syntax for 8579 the individual commands are colon-separated, for example; 8580 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 8581 [Geoff] 8582 8583 *) New dynamic control command support for ENGINEs. ENGINEs can now 8584 declare their own commands (numbers), names (strings), descriptions, 8585 and input types for run-time discovery by calling applications. A 8586 subset of these commands are implicitly classed as "executable" 8587 depending on their input type, and only these can be invoked through 8588 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 8589 can be based on user input, config files, etc). The distinction is 8590 that "executable" commands cannot return anything other than a boolean 8591 result and can only support numeric or string input, whereas some 8592 discoverable commands may only be for direct use through 8593 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 8594 pointers, or other custom uses. The "executable" commands are to 8595 support parameterisations of ENGINE behaviour that can be 8596 unambiguously defined by ENGINEs and used consistently across any 8597 OpenSSL-based application. Commands have been added to all the 8598 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 8599 control over shared-library paths without source code alterations. 8600 [Geoff] 8601 8602 *) Changed all ENGINE implementations to dynamically allocate their 8603 ENGINEs rather than declaring them statically. Apart from this being 8604 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 8605 this also allows the implementations to compile without using the 8606 internal engine_int.h header. 8607 [Geoff] 8608 8609 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 8610 'const' value. Any code that should be able to modify a RAND_METHOD 8611 should already have non-const pointers to it (ie. they should only 8612 modify their own ones). 8613 [Geoff] 8614 8615 *) Made a variety of little tweaks to the ENGINE code. 8616 - "atalla" and "ubsec" string definitions were moved from header files 8617 to C code. "nuron" string definitions were placed in variables 8618 rather than hard-coded - allowing parameterisation of these values 8619 later on via ctrl() commands. 8620 - Removed unused "#if 0"'d code. 8621 - Fixed engine list iteration code so it uses ENGINE_free() to release 8622 structural references. 8623 - Constified the RAND_METHOD element of ENGINE structures. 8624 - Constified various get/set functions as appropriate and added 8625 missing functions (including a catch-all ENGINE_cpy that duplicates 8626 all ENGINE values onto a new ENGINE except reference counts/state). 8627 - Removed NULL parameter checks in get/set functions. Setting a method 8628 or function to NULL is a way of cancelling out a previously set 8629 value. Passing a NULL ENGINE parameter is just plain stupid anyway 8630 and doesn't justify the extra error symbols and code. 8631 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 8632 flags from engine_int.h to engine.h. 8633 - Changed prototypes for ENGINE handler functions (init(), finish(), 8634 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 8635 [Geoff] 8636 8637 *) Implement binary inversion algorithm for BN_mod_inverse in addition 8638 to the algorithm using long division. The binary algorithm can be 8639 used only if the modulus is odd. On 32-bit systems, it is faster 8640 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 8641 roughly 5-15% for 256-bit moduli), so we use it only for moduli 8642 up to 450 bits. In 64-bit environments, the binary algorithm 8643 appears to be advantageous for much longer moduli; here we use it 8644 for moduli up to 2048 bits. 8645 [Bodo Moeller] 8646 8647 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 8648 could not support the combine flag in choice fields. 8649 [Steve Henson] 8650 8651 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 8652 extensions from a certificate request to the certificate. 8653 [Steve Henson] 8654 8655 *) Allow multiple 'certopt' and 'nameopt' options to be separated 8656 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 8657 file: this allows the display of the certificate about to be 8658 signed to be customised, to allow certain fields to be included 8659 or excluded and extension details. The old system didn't display 8660 multicharacter strings properly, omitted fields not in the policy 8661 and couldn't display additional details such as extensions. 8662 [Steve Henson] 8663 8664 *) Function EC_POINTs_mul for multiple scalar multiplication 8665 of an arbitrary number of elliptic curve points 8666 \sum scalars[i]*points[i], 8667 optionally including the generator defined for the EC_GROUP: 8668 scalar*generator + \sum scalars[i]*points[i]. 8669 8670 EC_POINT_mul is a simple wrapper function for the typical case 8671 that the point list has just one item (besides the optional 8672 generator). 8673 [Bodo Moeller] 8674 8675 *) First EC_METHODs for curves over GF(p): 8676 8677 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 8678 operations and provides various method functions that can also 8679 operate with faster implementations of modular arithmetic. 8680 8681 EC_GFp_mont_method() reuses most functions that are part of 8682 EC_GFp_simple_method, but uses Montgomery arithmetic. 8683 8684 [Bodo Moeller; point addition and point doubling 8685 implementation directly derived from source code provided by 8686 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 8687 8688 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 8689 crypto/ec/ec_lib.c): 8690 8691 Curves are EC_GROUP objects (with an optional group generator) 8692 based on EC_METHODs that are built into the library. 8693 8694 Points are EC_POINT objects based on EC_GROUP objects. 8695 8696 Most of the framework would be able to handle curves over arbitrary 8697 finite fields, but as there are no obvious types for fields other 8698 than GF(p), some functions are limited to that for now. 8699 [Bodo Moeller] 8700 8701 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 8702 that the file contains a complete HTTP response. 8703 [Richard Levitte] 8704 8705 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 8706 change the def and num file printf format specifier from "%-40sXXX" 8707 to "%-39s XXX". The latter will always guarantee a space after the 8708 field while the former will cause them to run together if the field 8709 is 40 of more characters long. 8710 [Steve Henson] 8711 8712 *) Constify the cipher and digest 'method' functions and structures 8713 and modify related functions to take constant EVP_MD and EVP_CIPHER 8714 pointers. 8715 [Steve Henson] 8716 8717 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 8718 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 8719 [Bodo Moeller] 8720 8721 *) Modify EVP_Digest*() routines so they now return values. Although the 8722 internal software routines can never fail additional hardware versions 8723 might. 8724 [Steve Henson] 8725 8726 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 8727 8728 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 8729 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 8730 8731 ASN1 error codes 8732 ERR_R_NESTED_ASN1_ERROR 8733 ... 8734 ERR_R_MISSING_ASN1_EOS 8735 were 4 .. 9, conflicting with 8736 ERR_LIB_RSA (= ERR_R_RSA_LIB) 8737 ... 8738 ERR_LIB_PEM (= ERR_R_PEM_LIB). 8739 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 8740 8741 Add new error code 'ERR_R_INTERNAL_ERROR'. 8742 [Bodo Moeller] 8743 8744 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 8745 suffices. 8746 [Bodo Moeller] 8747 8748 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 8749 sets the subject name for a new request or supersedes the 8750 subject name in a given request. Formats that can be parsed are 8751 'CN=Some Name, OU=myOU, C=IT' 8752 and 8753 'CN=Some Name/OU=myOU/C=IT'. 8754 8755 Add options '-batch' and '-verbose' to 'openssl req'. 8756 [Massimiliano Pala <madwolf@hackmasters.net>] 8757 8758 *) Introduce the possibility to access global variables through 8759 functions on platform were that's the best way to handle exporting 8760 global variables in shared libraries. To enable this functionality, 8761 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 8762 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 8763 is normally done by Configure or something similar). 8764 8765 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 8766 in the source file (foo.c) like this: 8767 8768 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 8769 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 8770 8771 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 8772 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 8773 8774 OPENSSL_DECLARE_GLOBAL(int,foo); 8775 #define foo OPENSSL_GLOBAL_REF(foo) 8776 OPENSSL_DECLARE_GLOBAL(double,bar); 8777 #define bar OPENSSL_GLOBAL_REF(bar) 8778 8779 The #defines are very important, and therefore so is including the 8780 header file everywhere where the defined globals are used. 8781 8782 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 8783 of ASN.1 items, but that structure is a bit different. 8784 8785 The largest change is in util/mkdef.pl which has been enhanced with 8786 better and easier to understand logic to choose which symbols should 8787 go into the Windows .def files as well as a number of fixes and code 8788 cleanup (among others, algorithm keywords are now sorted 8789 lexicographically to avoid constant rewrites). 8790 [Richard Levitte] 8791 8792 *) In BN_div() keep a copy of the sign of 'num' before writing the 8793 result to 'rm' because if rm==num the value will be overwritten 8794 and produce the wrong result if 'num' is negative: this caused 8795 problems with BN_mod() and BN_nnmod(). 8796 [Steve Henson] 8797 8798 *) Function OCSP_request_verify(). This checks the signature on an 8799 OCSP request and verifies the signer certificate. The signer 8800 certificate is just checked for a generic purpose and OCSP request 8801 trust settings. 8802 [Steve Henson] 8803 8804 *) Add OCSP_check_validity() function to check the validity of OCSP 8805 responses. OCSP responses are prepared in real time and may only 8806 be a few seconds old. Simply checking that the current time lies 8807 between thisUpdate and nextUpdate max reject otherwise valid responses 8808 caused by either OCSP responder or client clock inaccuracy. Instead 8809 we allow thisUpdate and nextUpdate to fall within a certain period of 8810 the current time. The age of the response can also optionally be 8811 checked. Two new options -validity_period and -status_age added to 8812 ocsp utility. 8813 [Steve Henson] 8814 8815 *) If signature or public key algorithm is unrecognized print out its 8816 OID rather that just UNKNOWN. 8817 [Steve Henson] 8818 8819 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 8820 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 8821 ID to be generated from the issuer certificate alone which can then be 8822 passed to OCSP_id_issuer_cmp(). 8823 [Steve Henson] 8824 8825 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 8826 ASN1 modules to export functions returning ASN1_ITEM pointers 8827 instead of the ASN1_ITEM structures themselves. This adds several 8828 new macros which allow the underlying ASN1 function/structure to 8829 be accessed transparently. As a result code should not use ASN1_ITEM 8830 references directly (such as &X509_it) but instead use the relevant 8831 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 8832 use of the new ASN1 code on platforms where exporting structures 8833 is problematical (for example in shared libraries) but exporting 8834 functions returning pointers to structures is not. 8835 [Steve Henson] 8836 8837 *) Add support for overriding the generation of SSL/TLS session IDs. 8838 These callbacks can be registered either in an SSL_CTX or per SSL. 8839 The purpose of this is to allow applications to control, if they wish, 8840 the arbitrary values chosen for use as session IDs, particularly as it 8841 can be useful for session caching in multiple-server environments. A 8842 command-line switch for testing this (and any client code that wishes 8843 to use such a feature) has been added to "s_server". 8844 [Geoff Thorpe, Lutz Jaenicke] 8845 8846 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 8847 of the form '#if defined(...) || defined(...) || ...' and 8848 '#if !defined(...) && !defined(...) && ...'. This also avoids 8849 the growing number of special cases it was previously handling. 8850 [Richard Levitte] 8851 8852 *) Make all configuration macros available for application by making 8853 sure they are available in opensslconf.h, by giving them names starting 8854 with "OPENSSL_" to avoid conflicts with other packages and by making 8855 sure e_os2.h will cover all platform-specific cases together with 8856 opensslconf.h. 8857 Additionally, it is now possible to define configuration/platform- 8858 specific names (called "system identities"). In the C code, these 8859 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 8860 macro with the name beginning with "OPENSSL_SYS_", which is determined 8861 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 8862 what is available. 8863 [Richard Levitte] 8864 8865 *) New option -set_serial to 'req' and 'x509' this allows the serial 8866 number to use to be specified on the command line. Previously self 8867 signed certificates were hard coded with serial number 0 and the 8868 CA options of 'x509' had to use a serial number in a file which was 8869 auto incremented. 8870 [Steve Henson] 8871 8872 *) New options to 'ca' utility to support V2 CRL entry extensions. 8873 Currently CRL reason, invalidity date and hold instruction are 8874 supported. Add new CRL extensions to V3 code and some new objects. 8875 [Steve Henson] 8876 8877 *) New function EVP_CIPHER_CTX_set_padding() this is used to 8878 disable standard block padding (aka PKCS#5 padding) in the EVP 8879 API, which was previously mandatory. This means that the data is 8880 not padded in any way and so the total length much be a multiple 8881 of the block size, otherwise an error occurs. 8882 [Steve Henson] 8883 8884 *) Initial (incomplete) OCSP SSL support. 8885 [Steve Henson] 8886 8887 *) New function OCSP_parse_url(). This splits up a URL into its host, 8888 port and path components: primarily to parse OCSP URLs. New -url 8889 option to ocsp utility. 8890 [Steve Henson] 8891 8892 *) New nonce behavior. The return value of OCSP_check_nonce() now 8893 reflects the various checks performed. Applications can decide 8894 whether to tolerate certain situations such as an absent nonce 8895 in a response when one was present in a request: the ocsp application 8896 just prints out a warning. New function OCSP_add1_basic_nonce() 8897 this is to allow responders to include a nonce in a response even if 8898 the request is nonce-less. 8899 [Steve Henson] 8900 8901 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 8902 skipped when using openssl x509 multiple times on a single input file, 8903 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 8904 [Bodo Moeller] 8905 8906 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 8907 set string type: to handle setting ASN1_TIME structures. Fix ca 8908 utility to correctly initialize revocation date of CRLs. 8909 [Steve Henson] 8910 8911 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 8912 the clients preferred ciphersuites and rather use its own preferences. 8913 Should help to work around M$ SGC (Server Gated Cryptography) bug in 8914 Internet Explorer by ensuring unchanged hash method during stepup. 8915 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 8916 [Lutz Jaenicke] 8917 8918 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 8919 to aes and add a new 'exist' option to print out symbols that don't 8920 appear to exist. 8921 [Steve Henson] 8922 8923 *) Additional options to ocsp utility to allow flags to be set and 8924 additional certificates supplied. 8925 [Steve Henson] 8926 8927 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 8928 OCSP client a number of certificate to only verify the response 8929 signature against. 8930 [Richard Levitte] 8931 8932 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 8933 handle the new API. Currently only ECB, CBC modes supported. Add new 8934 AES OIDs. 8935 8936 Add TLS AES ciphersuites as described in RFC3268, "Advanced 8937 Encryption Standard (AES) Ciphersuites for Transport Layer 8938 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 8939 not enabled by default and were not part of the "ALL" ciphersuite 8940 alias because they were not yet official; they could be 8941 explicitly requested by specifying the "AESdraft" ciphersuite 8942 group alias. In the final release of OpenSSL 0.9.7, the group 8943 alias is called "AES" and is part of "ALL".) 8944 [Ben Laurie, Steve Henson, Bodo Moeller] 8945 8946 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 8947 request to response. 8948 [Steve Henson] 8949 8950 *) Functions for OCSP responders. OCSP_request_onereq_count(), 8951 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 8952 extract information from a certificate request. OCSP_response_create() 8953 creates a response and optionally adds a basic response structure. 8954 OCSP_basic_add1_status() adds a complete single response to a basic 8955 response and returns the OCSP_SINGLERESP structure just added (to allow 8956 extensions to be included for example). OCSP_basic_add1_cert() adds a 8957 certificate to a basic response and OCSP_basic_sign() signs a basic 8958 response with various flags. New helper functions ASN1_TIME_check() 8959 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 8960 (converts ASN1_TIME to GeneralizedTime). 8961 [Steve Henson] 8962 8963 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 8964 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 8965 structure from a certificate. X509_pubkey_digest() digests the public_key 8966 contents: this is used in various key identifiers. 8967 [Steve Henson] 8968 8969 *) Make sk_sort() tolerate a NULL argument. 8970 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 8971 8972 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 8973 passed by the function are trusted implicitly. If any of them signed the 8974 response then it is assumed to be valid and is not verified. 8975 [Steve Henson] 8976 8977 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 8978 to data. This was previously part of the PKCS7 ASN1 code. This 8979 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 8980 [Steve Henson, reported by Kenneth R. Robinette 8981 <support@securenetterm.com>] 8982 8983 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 8984 routines: without these tracing memory leaks is very painful. 8985 Fix leaks in PKCS12 and PKCS7 routines. 8986 [Steve Henson] 8987 8988 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 8989 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 8990 effectively meant GeneralizedTime would never be used. Now it 8991 is initialised to -1 but X509_time_adj() now has to check the value 8992 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 8993 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 8994 [Steve Henson, reported by Kenneth R. Robinette 8995 <support@securenetterm.com>] 8996 8997 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 8998 result in a zero length in the ASN1_INTEGER structure which was 8999 not consistent with the structure when d2i_ASN1_INTEGER() was used 9000 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 9001 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 9002 where it did not print out a minus for negative ASN1_INTEGER. 9003 [Steve Henson] 9004 9005 *) Add summary printout to ocsp utility. The various functions which 9006 convert status values to strings have been renamed to: 9007 OCSP_response_status_str(), OCSP_cert_status_str() and 9008 OCSP_crl_reason_str() and are no longer static. New options 9009 to verify nonce values and to disable verification. OCSP response 9010 printout format cleaned up. 9011 [Steve Henson] 9012 9013 *) Add additional OCSP certificate checks. These are those specified 9014 in RFC2560. This consists of two separate checks: the CA of the 9015 certificate being checked must either be the OCSP signer certificate 9016 or the issuer of the OCSP signer certificate. In the latter case the 9017 OCSP signer certificate must contain the OCSP signing extended key 9018 usage. This check is performed by attempting to match the OCSP 9019 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 9020 in the OCSP_CERTID structures of the response. 9021 [Steve Henson] 9022 9023 *) Initial OCSP certificate verification added to OCSP_basic_verify() 9024 and related routines. This uses the standard OpenSSL certificate 9025 verify routines to perform initial checks (just CA validity) and 9026 to obtain the certificate chain. Then additional checks will be 9027 performed on the chain. Currently the root CA is checked to see 9028 if it is explicitly trusted for OCSP signing. This is used to set 9029 a root CA as a global signing root: that is any certificate that 9030 chains to that CA is an acceptable OCSP signing certificate. 9031 [Steve Henson] 9032 9033 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 9034 extensions from a separate configuration file. 9035 As when reading extensions from the main configuration file, 9036 the '-extensions ...' option may be used for specifying the 9037 section to use. 9038 [Massimiliano Pala <madwolf@comune.modena.it>] 9039 9040 *) New OCSP utility. Allows OCSP requests to be generated or 9041 read. The request can be sent to a responder and the output 9042 parsed, outputted or printed in text form. Not complete yet: 9043 still needs to check the OCSP response validity. 9044 [Steve Henson] 9045 9046 *) New subcommands for 'openssl ca': 9047 'openssl ca -status <serial>' prints the status of the cert with 9048 the given serial number (according to the index file). 9049 'openssl ca -updatedb' updates the expiry status of certificates 9050 in the index file. 9051 [Massimiliano Pala <madwolf@comune.modena.it>] 9052 9053 *) New '-newreq-nodes' command option to CA.pl. This is like 9054 '-newreq', but calls 'openssl req' with the '-nodes' option 9055 so that the resulting key is not encrypted. 9056 [Damien Miller <djm@mindrot.org>] 9057 9058 *) New configuration for the GNU Hurd. 9059 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 9060 9061 *) Initial code to implement OCSP basic response verify. This 9062 is currently incomplete. Currently just finds the signer's 9063 certificate and verifies the signature on the response. 9064 [Steve Henson] 9065 9066 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 9067 value of OPENSSLDIR. This is available via the new '-d' option 9068 to 'openssl version', and is also included in 'openssl version -a'. 9069 [Bodo Moeller] 9070 9071 *) Allowing defining memory allocation callbacks that will be given 9072 file name and line number information in additional arguments 9073 (a const char* and an int). The basic functionality remains, as 9074 well as the original possibility to just replace malloc(), 9075 realloc() and free() by functions that do not know about these 9076 additional arguments. To register and find out the current 9077 settings for extended allocation functions, the following 9078 functions are provided: 9079 9080 CRYPTO_set_mem_ex_functions 9081 CRYPTO_set_locked_mem_ex_functions 9082 CRYPTO_get_mem_ex_functions 9083 CRYPTO_get_locked_mem_ex_functions 9084 9085 These work the same way as CRYPTO_set_mem_functions and friends. 9086 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 9087 extended allocation function is enabled. 9088 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 9089 a conventional allocation function is enabled. 9090 [Richard Levitte, Bodo Moeller] 9091 9092 *) Finish off removing the remaining LHASH function pointer casts. 9093 There should no longer be any prototype-casting required when using 9094 the LHASH abstraction, and any casts that remain are "bugs". See 9095 the callback types and macros at the head of lhash.h for details 9096 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 9097 [Geoff Thorpe] 9098 9099 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 9100 If /dev/[u]random devices are not available or do not return enough 9101 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 9102 be queried. 9103 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 9104 /etc/entropy will be queried once each in this sequence, querying stops 9105 when enough entropy was collected without querying more sockets. 9106 [Lutz Jaenicke] 9107 9108 *) Change the Unix RAND_poll() variant to be able to poll several 9109 random devices, as specified by DEVRANDOM, until a sufficient amount 9110 of data has been collected. We spend at most 10 ms on each file 9111 (select timeout) and read in non-blocking mode. DEVRANDOM now 9112 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 9113 (previously it was just the string "/dev/urandom"), so on typical 9114 platforms the 10 ms delay will never occur. 9115 Also separate out the Unix variant to its own file, rand_unix.c. 9116 For VMS, there's a currently-empty rand_vms.c. 9117 [Richard Levitte] 9118 9119 *) Move OCSP client related routines to ocsp_cl.c. These 9120 provide utility functions which an application needing 9121 to issue a request to an OCSP responder and analyse the 9122 response will typically need: as opposed to those which an 9123 OCSP responder itself would need which will be added later. 9124 9125 OCSP_request_sign() signs an OCSP request with an API similar 9126 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 9127 response. OCSP_response_get1_basic() extracts basic response 9128 from response. OCSP_resp_find_status(): finds and extracts status 9129 information from an OCSP_CERTID structure (which will be created 9130 when the request structure is built). These are built from lower 9131 level functions which work on OCSP_SINGLERESP structures but 9132 won't normally be used unless the application wishes to examine 9133 extensions in the OCSP response for example. 9134 9135 Replace nonce routines with a pair of functions. 9136 OCSP_request_add1_nonce() adds a nonce value and optionally 9137 generates a random value. OCSP_check_nonce() checks the 9138 validity of the nonce in an OCSP response. 9139 [Steve Henson] 9140 9141 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 9142 This doesn't copy the supplied OCSP_CERTID and avoids the 9143 need to free up the newly created id. Change return type 9144 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 9145 This can then be used to add extensions to the request. 9146 Deleted OCSP_request_new(), since most of its functionality 9147 is now in OCSP_REQUEST_new() (and the case insensitive name 9148 clash) apart from the ability to set the request name which 9149 will be added elsewhere. 9150 [Steve Henson] 9151 9152 *) Update OCSP API. Remove obsolete extensions argument from 9153 various functions. Extensions are now handled using the new 9154 OCSP extension code. New simple OCSP HTTP function which 9155 can be used to send requests and parse the response. 9156 [Steve Henson] 9157 9158 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 9159 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 9160 uses the special reorder version of SET OF to sort the attributes 9161 and reorder them to match the encoded order. This resolves a long 9162 standing problem: a verify on a PKCS7 structure just after signing 9163 it used to fail because the attribute order did not match the 9164 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 9165 it uses the received order. This is necessary to tolerate some broken 9166 software that does not order SET OF. This is handled by encoding 9167 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 9168 to produce the required SET OF. 9169 [Steve Henson] 9170 9171 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 9172 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 9173 files to get correct declarations of the ASN.1 item variables. 9174 [Richard Levitte] 9175 9176 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 9177 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 9178 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 9179 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 9180 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 9181 ASN1_ITEM and no wrapper functions. 9182 [Steve Henson] 9183 9184 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 9185 replace the old function pointer based I/O routines. Change most of 9186 the *_d2i_bio() and *_d2i_fp() functions to use these. 9187 [Steve Henson] 9188 9189 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 9190 lines, recognize more "algorithms" that can be deselected, and make 9191 it complain about algorithm deselection that isn't recognised. 9192 [Richard Levitte] 9193 9194 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 9195 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 9196 to use new functions. Add NO_ASN1_OLD which can be set to remove 9197 some old style ASN1 functions: this can be used to determine if old 9198 code will still work when these eventually go away. 9199 [Steve Henson] 9200 9201 *) New extension functions for OCSP structures, these follow the 9202 same conventions as certificates and CRLs. 9203 [Steve Henson] 9204 9205 *) New function X509V3_add1_i2d(). This automatically encodes and 9206 adds an extension. Its behaviour can be customised with various 9207 flags to append, replace or delete. Various wrappers added for 9208 certificates and CRLs. 9209 [Steve Henson] 9210 9211 *) Fix to avoid calling the underlying ASN1 print routine when 9212 an extension cannot be parsed. Correct a typo in the 9213 OCSP_SERVICELOC extension. Tidy up print OCSP format. 9214 [Steve Henson] 9215 9216 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate 9217 entries for variables. 9218 [Steve Henson] 9219 9220 *) Add functionality to apps/openssl.c for detecting locking 9221 problems: As the program is single-threaded, all we have 9222 to do is register a locking callback using an array for 9223 storing which locks are currently held by the program. 9224 [Bodo Moeller] 9225 9226 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 9227 SSL_get_ex_data_X509_STORE_idx(), which is used in 9228 ssl_verify_cert_chain() and thus can be called at any time 9229 during TLS/SSL handshakes so that thread-safety is essential. 9230 Unfortunately, the ex_data design is not at all suited 9231 for multi-threaded use, so it probably should be abolished. 9232 [Bodo Moeller] 9233 9234 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 9235 [Broadcom, tweaked and integrated by Geoff Thorpe] 9236 9237 *) Move common extension printing code to new function 9238 X509V3_print_extensions(). Reorganise OCSP print routines and 9239 implement some needed OCSP ASN1 functions. Add OCSP extensions. 9240 [Steve Henson] 9241 9242 *) New function X509_signature_print() to remove duplication in some 9243 print routines. 9244 [Steve Henson] 9245 9246 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 9247 set (this was treated exactly the same as SET OF previously). This 9248 is used to reorder the STACK representing the structure to match the 9249 encoding. This will be used to get round a problem where a PKCS7 9250 structure which was signed could not be verified because the STACK 9251 order did not reflect the encoded order. 9252 [Steve Henson] 9253 9254 *) Reimplement the OCSP ASN1 module using the new code. 9255 [Steve Henson] 9256 9257 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 9258 for its ASN1 operations. The old style function pointers still exist 9259 for now but they will eventually go away. 9260 [Steve Henson] 9261 9262 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 9263 completely replaces the old ASN1 functionality with a table driven 9264 encoder and decoder which interprets an ASN1_ITEM structure describing 9265 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 9266 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 9267 has also been converted to the new form. 9268 [Steve Henson] 9269 9270 *) Change BN_mod_exp_recp so that negative moduli are tolerated 9271 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 9272 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 9273 for negative moduli. 9274 [Bodo Moeller] 9275 9276 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 9277 of not touching the result's sign bit. 9278 [Bodo Moeller] 9279 9280 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 9281 set. 9282 [Bodo Moeller] 9283 9284 *) Changed the LHASH code to use prototypes for callbacks, and created 9285 macros to declare and implement thin (optionally static) functions 9286 that provide type-safety and avoid function pointer casting for the 9287 type-specific callbacks. 9288 [Geoff Thorpe] 9289 9290 *) Added Kerberos Cipher Suites to be used with TLS, as written in 9291 RFC 2712. 9292 [Veers Staats <staatsvr@asc.hpc.mil>, 9293 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 9294 9295 *) Reformat the FAQ so the different questions and answers can be divided 9296 in sections depending on the subject. 9297 [Richard Levitte] 9298 9299 *) Have the zlib compression code load ZLIB.DLL dynamically under 9300 Windows. 9301 [Richard Levitte] 9302 9303 *) New function BN_mod_sqrt for computing square roots modulo a prime 9304 (using the probabilistic Tonelli-Shanks algorithm unless 9305 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 9306 be handled deterministically). 9307 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 9308 9309 *) Make BN_mod_inverse faster by explicitly handling small quotients 9310 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 9311 512 bits], about 30% for larger ones [1024 or 2048 bits].) 9312 [Bodo Moeller] 9313 9314 *) New function BN_kronecker. 9315 [Bodo Moeller] 9316 9317 *) Fix BN_gcd so that it works on negative inputs; the result is 9318 positive unless both parameters are zero. 9319 Previously something reasonably close to an infinite loop was 9320 possible because numbers could be growing instead of shrinking 9321 in the implementation of Euclid's algorithm. 9322 [Bodo Moeller] 9323 9324 *) Fix BN_is_word() and BN_is_one() macros to take into account the 9325 sign of the number in question. 9326 9327 Fix BN_is_word(a,w) to work correctly for w == 0. 9328 9329 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 9330 because its test if the absolute value of 'a' equals 'w'. 9331 Note that BN_abs_is_word does *not* handle w == 0 reliably; 9332 it exists mostly for use in the implementations of BN_is_zero(), 9333 BN_is_one(), and BN_is_word(). 9334 [Bodo Moeller] 9335 9336 *) New function BN_swap. 9337 [Bodo Moeller] 9338 9339 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 9340 the exponentiation functions are more likely to produce reasonable 9341 results on negative inputs. 9342 [Bodo Moeller] 9343 9344 *) Change BN_mod_mul so that the result is always non-negative. 9345 Previously, it could be negative if one of the factors was negative; 9346 I don't think anyone really wanted that behaviour. 9347 [Bodo Moeller] 9348 9349 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 9350 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 9351 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 9352 and add new functions: 9353 9354 BN_nnmod 9355 BN_mod_sqr 9356 BN_mod_add 9357 BN_mod_add_quick 9358 BN_mod_sub 9359 BN_mod_sub_quick 9360 BN_mod_lshift1 9361 BN_mod_lshift1_quick 9362 BN_mod_lshift 9363 BN_mod_lshift_quick 9364 9365 These functions always generate non-negative results. 9366 9367 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 9368 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 9369 9370 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 9371 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 9372 be reduced modulo m. 9373 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 9374 9375#if 0 9376 The following entry accidentally appeared in the CHANGES file 9377 distributed with OpenSSL 0.9.7. The modifications described in 9378 it do *not* apply to OpenSSL 0.9.7. 9379 9380 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 9381 was actually never needed) and in BN_mul(). The removal in BN_mul() 9382 required a small change in bn_mul_part_recursive() and the addition 9383 of the functions bn_cmp_part_words(), bn_sub_part_words() and 9384 bn_add_part_words(), which do the same thing as bn_cmp_words(), 9385 bn_sub_words() and bn_add_words() except they take arrays with 9386 differing sizes. 9387 [Richard Levitte] 9388#endif 9389 9390 *) In 'openssl passwd', verify passwords read from the terminal 9391 unless the '-salt' option is used (which usually means that 9392 verification would just waste user's time since the resulting 9393 hash is going to be compared with some given password hash) 9394 or the new '-noverify' option is used. 9395 9396 This is an incompatible change, but it does not affect 9397 non-interactive use of 'openssl passwd' (passwords on the command 9398 line, '-stdin' option, '-in ...' option) and thus should not 9399 cause any problems. 9400 [Bodo Moeller] 9401 9402 *) Remove all references to RSAref, since there's no more need for it. 9403 [Richard Levitte] 9404 9405 *) Make DSO load along a path given through an environment variable 9406 (SHLIB_PATH) with shl_load(). 9407 [Richard Levitte] 9408 9409 *) Constify the ENGINE code as a result of BIGNUM constification. 9410 Also constify the RSA code and most things related to it. In a 9411 few places, most notable in the depth of the ASN.1 code, ugly 9412 casts back to non-const were required (to be solved at a later 9413 time) 9414 [Richard Levitte] 9415 9416 *) Make it so the openssl application has all engines loaded by default. 9417 [Richard Levitte] 9418 9419 *) Constify the BIGNUM routines a little more. 9420 [Richard Levitte] 9421 9422 *) Add the following functions: 9423 9424 ENGINE_load_cswift() 9425 ENGINE_load_chil() 9426 ENGINE_load_atalla() 9427 ENGINE_load_nuron() 9428 ENGINE_load_builtin_engines() 9429 9430 That way, an application can itself choose if external engines that 9431 are built-in in OpenSSL shall ever be used or not. The benefit is 9432 that applications won't have to be linked with libdl or other dso 9433 libraries unless it's really needed. 9434 9435 Changed 'openssl engine' to load all engines on demand. 9436 Changed the engine header files to avoid the duplication of some 9437 declarations (they differed!). 9438 [Richard Levitte] 9439 9440 *) 'openssl engine' can now list capabilities. 9441 [Richard Levitte] 9442 9443 *) Better error reporting in 'openssl engine'. 9444 [Richard Levitte] 9445 9446 *) Never call load_dh_param(NULL) in s_server. 9447 [Bodo Moeller] 9448 9449 *) Add engine application. It can currently list engines by name and 9450 identity, and test if they are actually available. 9451 [Richard Levitte] 9452 9453 *) Improve RPM specification file by forcing symbolic linking and making 9454 sure the installed documentation is also owned by root.root. 9455 [Damien Miller <djm@mindrot.org>] 9456 9457 *) Give the OpenSSL applications more possibilities to make use of 9458 keys (public as well as private) handled by engines. 9459 [Richard Levitte] 9460 9461 *) Add OCSP code that comes from CertCo. 9462 [Richard Levitte] 9463 9464 *) Add VMS support for the Rijndael code. 9465 [Richard Levitte] 9466 9467 *) Added untested support for Nuron crypto accelerator. 9468 [Ben Laurie] 9469 9470 *) Add support for external cryptographic devices. This code was 9471 previously distributed separately as the "engine" branch. 9472 [Geoff Thorpe, Richard Levitte] 9473 9474 *) Rework the filename-translation in the DSO code. It is now possible to 9475 have far greater control over how a "name" is turned into a filename 9476 depending on the operating environment and any oddities about the 9477 different shared library filenames on each system. 9478 [Geoff Thorpe] 9479 9480 *) Support threads on FreeBSD-elf in Configure. 9481 [Richard Levitte] 9482 9483 *) Fix for SHA1 assembly problem with MASM: it produces 9484 warnings about corrupt line number information when assembling 9485 with debugging information. This is caused by the overlapping 9486 of two sections. 9487 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 9488 9489 *) NCONF changes. 9490 NCONF_get_number() has no error checking at all. As a replacement, 9491 NCONF_get_number_e() is defined (_e for "error checking") and is 9492 promoted strongly. The old NCONF_get_number is kept around for 9493 binary backward compatibility. 9494 Make it possible for methods to load from something other than a BIO, 9495 by providing a function pointer that is given a name instead of a BIO. 9496 For example, this could be used to load configuration data from an 9497 LDAP server. 9498 [Richard Levitte] 9499 9500 *) Fix for non blocking accept BIOs. Added new I/O special reason 9501 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 9502 with non blocking I/O was not possible because no retry code was 9503 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 9504 this case. 9505 [Steve Henson] 9506 9507 *) Added the beginnings of Rijndael support. 9508 [Ben Laurie] 9509 9510 *) Fix for bug in DirectoryString mask setting. Add support for 9511 X509_NAME_print_ex() in 'req' and X509_print_ex() function 9512 to allow certificate printing to more controllable, additional 9513 'certopt' option to 'x509' to allow new printing options to be 9514 set. 9515 [Steve Henson] 9516 9517 *) Clean old EAY MD5 hack from e_os.h. 9518 [Richard Levitte] 9519 9520 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 9521 9522 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 9523 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 9524 [Joe Orton, Steve Henson] 9525 9526 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 9527 9528 *) Fix additional bug revealed by the NISCC test suite: 9529 9530 Stop bug triggering large recursion when presented with 9531 certain ASN.1 tags (CVE-2003-0851) 9532 [Steve Henson] 9533 9534 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 9535 9536 *) Fix various bugs revealed by running the NISCC test suite: 9537 9538 Stop out of bounds reads in the ASN1 code when presented with 9539 invalid tags (CVE-2003-0543 and CVE-2003-0544). 9540 9541 If verify callback ignores invalid public key errors don't try to check 9542 certificate signature with the NULL public key. 9543 9544 [Steve Henson] 9545 9546 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 9547 if the server requested one: as stated in TLS 1.0 and SSL 3.0 9548 specifications. 9549 [Steve Henson] 9550 9551 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 9552 extra data after the compression methods not only for TLS 1.0 9553 but also for SSL 3.0 (as required by the specification). 9554 [Bodo Moeller; problem pointed out by Matthias Loepfe] 9555 9556 *) Change X509_certificate_type() to mark the key as exported/exportable 9557 when it's 512 *bits* long, not 512 bytes. 9558 [Richard Levitte] 9559 9560 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 9561 9562 *) Countermeasure against the Klima-Pokorny-Rosa extension of 9563 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 9564 a protocol version number mismatch like a decryption error 9565 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 9566 [Bodo Moeller] 9567 9568 *) Turn on RSA blinding by default in the default implementation 9569 to avoid a timing attack. Applications that don't want it can call 9570 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 9571 They would be ill-advised to do so in most cases. 9572 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 9573 9574 *) Change RSA blinding code so that it works when the PRNG is not 9575 seeded (in this case, the secret RSA exponent is abused as 9576 an unpredictable seed -- if it is not unpredictable, there 9577 is no point in blinding anyway). Make RSA blinding thread-safe 9578 by remembering the creator's thread ID in rsa->blinding and 9579 having all other threads use local one-time blinding factors 9580 (this requires more computation than sharing rsa->blinding, but 9581 avoids excessive locking; and if an RSA object is not shared 9582 between threads, blinding will still be very fast). 9583 [Bodo Moeller] 9584 9585 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 9586 9587 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 9588 via timing by performing a MAC computation even if incorrect 9589 block cipher padding has been found. This is a countermeasure 9590 against active attacks where the attacker has to distinguish 9591 between bad padding and a MAC verification error. (CVE-2003-0078) 9592 9593 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 9594 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 9595 Martin Vuagnoux (EPFL, Ilion)] 9596 9597 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 9598 9599 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 9600 memory from its contents. This is done with a counter that will 9601 place alternating values in each byte. This can be used to solve 9602 two issues: 1) the removal of calls to memset() by highly optimizing 9603 compilers, and 2) cleansing with other values than 0, since those can 9604 be read through on certain media, for example a swap space on disk. 9605 [Geoff Thorpe] 9606 9607 *) Bugfix: client side session caching did not work with external caching, 9608 because the session->cipher setting was not restored when reloading 9609 from the external cache. This problem was masked, when 9610 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 9611 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 9612 [Lutz Jaenicke] 9613 9614 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 9615 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 9616 [Zeev Lieber <zeev-l@yahoo.com>] 9617 9618 *) Undo an undocumented change introduced in 0.9.6e which caused 9619 repeated calls to OpenSSL_add_all_ciphers() and 9620 OpenSSL_add_all_digests() to be ignored, even after calling 9621 EVP_cleanup(). 9622 [Richard Levitte] 9623 9624 *) Change the default configuration reader to deal with last line not 9625 being properly terminated. 9626 [Richard Levitte] 9627 9628 *) Change X509_NAME_cmp() so it applies the special rules on handling 9629 DN values that are of type PrintableString, as well as RDNs of type 9630 emailAddress where the value has the type ia5String. 9631 [stefank@valicert.com via Richard Levitte] 9632 9633 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 9634 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 9635 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 9636 the bitwise-OR of the two for use by the majority of applications 9637 wanting this behaviour, and update the docs. The documented 9638 behaviour and actual behaviour were inconsistent and had been 9639 changing anyway, so this is more a bug-fix than a behavioural 9640 change. 9641 [Geoff Thorpe, diagnosed by Nadav Har'El] 9642 9643 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 9644 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 9645 [Bodo Moeller] 9646 9647 *) Fix initialization code race conditions in 9648 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 9649 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 9650 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 9651 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 9652 ssl2_get_cipher_by_char(), 9653 ssl3_get_cipher_by_char(). 9654 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 9655 9656 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 9657 the cached sessions are flushed, as the remove_cb() might use ex_data 9658 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 9659 (see [openssl.org #212]). 9660 [Geoff Thorpe, Lutz Jaenicke] 9661 9662 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 9663 length, instead of the encoding length to d2i_ASN1_OBJECT. 9664 [Steve Henson] 9665 9666 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 9667 9668 *) [In 0.9.6g-engine release:] 9669 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 9670 [Lynn Gazis <lgazis@rainbow.com>] 9671 9672 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 9673 9674 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 9675 and get fix the header length calculation. 9676 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 9677 Alon Kantor <alonk@checkpoint.com> (and others), 9678 Steve Henson] 9679 9680 *) Use proper error handling instead of 'assertions' in buffer 9681 overflow checks added in 0.9.6e. This prevents DoS (the 9682 assertions could call abort()). 9683 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 9684 9685 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 9686 9687 *) Add various sanity checks to asn1_get_length() to reject 9688 the ASN1 length bytes if they exceed sizeof(long), will appear 9689 negative or the content length exceeds the length of the 9690 supplied buffer. 9691 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 9692 9693 *) Fix cipher selection routines: ciphers without encryption had no flags 9694 for the cipher strength set and where therefore not handled correctly 9695 by the selection routines (PR #130). 9696 [Lutz Jaenicke] 9697 9698 *) Fix EVP_dsa_sha macro. 9699 [Nils Larsch] 9700 9701 *) New option 9702 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 9703 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 9704 that was added in OpenSSL 0.9.6d. 9705 9706 As the countermeasure turned out to be incompatible with some 9707 broken SSL implementations, the new option is part of SSL_OP_ALL. 9708 SSL_OP_ALL is usually employed when compatibility with weird SSL 9709 implementations is desired (e.g. '-bugs' option to 's_client' and 9710 's_server'), so the new option is automatically set in many 9711 applications. 9712 [Bodo Moeller] 9713 9714 *) Changes in security patch: 9715 9716 Changes marked "(CHATS)" were sponsored by the Defense Advanced 9717 Research Projects Agency (DARPA) and Air Force Research Laboratory, 9718 Air Force Materiel Command, USAF, under agreement number 9719 F30602-01-2-0537. 9720 9721 *) Add various sanity checks to asn1_get_length() to reject 9722 the ASN1 length bytes if they exceed sizeof(long), will appear 9723 negative or the content length exceeds the length of the 9724 supplied buffer. (CVE-2002-0659) 9725 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 9726 9727 *) Assertions for various potential buffer overflows, not known to 9728 happen in practice. 9729 [Ben Laurie (CHATS)] 9730 9731 *) Various temporary buffers to hold ASCII versions of integers were 9732 too small for 64 bit platforms. (CVE-2002-0655) 9733 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 9734 9735 *) Remote buffer overflow in SSL3 protocol - an attacker could 9736 supply an oversized session ID to a client. (CVE-2002-0656) 9737 [Ben Laurie (CHATS)] 9738 9739 *) Remote buffer overflow in SSL2 protocol - an attacker could 9740 supply an oversized client master key. (CVE-2002-0656) 9741 [Ben Laurie (CHATS)] 9742 9743 Changes between 0.9.6c and 0.9.6d [9 May 2002] 9744 9745 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 9746 encoded as NULL) with id-dsa-with-sha1. 9747 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 9748 9749 *) Check various X509_...() return values in apps/req.c. 9750 [Nils Larsch <nla@trustcenter.de>] 9751 9752 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 9753 an end-of-file condition would erroneously be flagged, when the CRLF 9754 was just at the end of a processed block. The bug was discovered when 9755 processing data through a buffering memory BIO handing the data to a 9756 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 9757 <ptsekov@syntrex.com> and Nedelcho Stanev. 9758 [Lutz Jaenicke] 9759 9760 *) Implement a countermeasure against a vulnerability recently found 9761 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 9762 before application data chunks to avoid the use of known IVs 9763 with data potentially chosen by the attacker. 9764 [Bodo Moeller] 9765 9766 *) Fix length checks in ssl3_get_client_hello(). 9767 [Bodo Moeller] 9768 9769 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 9770 to prevent ssl3_read_internal() from incorrectly assuming that 9771 ssl3_read_bytes() found application data while handshake 9772 processing was enabled when in fact s->s3->in_read_app_data was 9773 merely automatically cleared during the initial handshake. 9774 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 9775 9776 *) Fix object definitions for Private and Enterprise: they were not 9777 recognized in their shortname (=lowercase) representation. Extend 9778 obj_dat.pl to issue an error when using undefined keywords instead 9779 of silently ignoring the problem (Svenning Sorensen 9780 <sss@sss.dnsalias.net>). 9781 [Lutz Jaenicke] 9782 9783 *) Fix DH_generate_parameters() so that it works for 'non-standard' 9784 generators, i.e. generators other than 2 and 5. (Previously, the 9785 code did not properly initialise the 'add' and 'rem' values to 9786 BN_generate_prime().) 9787 9788 In the new general case, we do not insist that 'generator' is 9789 actually a primitive root: This requirement is rather pointless; 9790 a generator of the order-q subgroup is just as good, if not 9791 better. 9792 [Bodo Moeller] 9793 9794 *) Map new X509 verification errors to alerts. Discovered and submitted by 9795 Tom Wu <tom@arcot.com>. 9796 [Lutz Jaenicke] 9797 9798 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 9799 returning non-zero before the data has been completely received 9800 when using non-blocking I/O. 9801 [Bodo Moeller; problem pointed out by John Hughes] 9802 9803 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 9804 [Ben Laurie, Lutz Jaenicke] 9805 9806 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 9807 Yoram Zahavi <YoramZ@gilian.com>). 9808 [Lutz Jaenicke] 9809 9810 *) Add information about CygWin 1.3 and on, and preserve proper 9811 configuration for the versions before that. 9812 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 9813 9814 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 9815 check whether we deal with a copy of a session and do not delete from 9816 the cache in this case. Problem reported by "Izhar Shoshani Levi" 9817 <izhar@checkpoint.com>. 9818 [Lutz Jaenicke] 9819 9820 *) Do not store session data into the internal session cache, if it 9821 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 9822 flag is set). Proposed by Aslam <aslam@funk.com>. 9823 [Lutz Jaenicke] 9824 9825 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 9826 value is 0. 9827 [Richard Levitte] 9828 9829 *) [In 0.9.6d-engine release:] 9830 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 9831 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 9832 9833 *) Add the configuration target linux-s390x. 9834 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 9835 9836 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 9837 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 9838 variable as an indication that a ClientHello message has been 9839 received. As the flag value will be lost between multiple 9840 invocations of ssl3_accept when using non-blocking I/O, the 9841 function may not be aware that a handshake has actually taken 9842 place, thus preventing a new session from being added to the 9843 session cache. 9844 9845 To avoid this problem, we now set s->new_session to 2 instead of 9846 using a local variable. 9847 [Lutz Jaenicke, Bodo Moeller] 9848 9849 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 9850 if the SSL_R_LENGTH_MISMATCH error is detected. 9851 [Geoff Thorpe, Bodo Moeller] 9852 9853 *) New 'shared_ldflag' column in Configure platform table. 9854 [Richard Levitte] 9855 9856 *) Fix EVP_CIPHER_mode macro. 9857 ["Dan S. Camper" <dan@bti.net>] 9858 9859 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 9860 type, we must throw them away by setting rr->length to 0. 9861 [D P Chang <dpc@qualys.com>] 9862 9863 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 9864 9865 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 9866 <Dominikus.Scherkl@biodata.com>. (The previous implementation 9867 worked incorrectly for those cases where range = 10..._2 and 9868 3*range is two bits longer than range.) 9869 [Bodo Moeller] 9870 9871 *) Only add signing time to PKCS7 structures if it is not already 9872 present. 9873 [Steve Henson] 9874 9875 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 9876 OBJ_ld_ce should be OBJ_id_ce. 9877 Also some ip-pda OIDs in crypto/objects/objects.txt were 9878 incorrect (cf. RFC 3039). 9879 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 9880 9881 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 9882 returns early because it has nothing to do. 9883 [Andy Schneider <andy.schneider@bjss.co.uk>] 9884 9885 *) [In 0.9.6c-engine release:] 9886 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 9887 [Andy Schneider <andy.schneider@bjss.co.uk>] 9888 9889 *) [In 0.9.6c-engine release:] 9890 Add support for Cryptographic Appliance's keyserver technology. 9891 (Use engine 'keyclient') 9892 [Cryptographic Appliances and Geoff Thorpe] 9893 9894 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 9895 is called via tools/c89.sh because arguments have to be 9896 rearranged (all '-L' options must appear before the first object 9897 modules). 9898 [Richard Shapiro <rshapiro@abinitio.com>] 9899 9900 *) [In 0.9.6c-engine release:] 9901 Add support for Broadcom crypto accelerator cards, backported 9902 from 0.9.7. 9903 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 9904 9905 *) [In 0.9.6c-engine release:] 9906 Add support for SureWare crypto accelerator cards from 9907 Baltimore Technologies. (Use engine 'sureware') 9908 [Baltimore Technologies and Mark Cox] 9909 9910 *) [In 0.9.6c-engine release:] 9911 Add support for crypto accelerator cards from Accelerated 9912 Encryption Processing, www.aep.ie. (Use engine 'aep') 9913 [AEP Inc. and Mark Cox] 9914 9915 *) Add a configuration entry for gcc on UnixWare. 9916 [Gary Benson <gbenson@redhat.com>] 9917 9918 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 9919 messages are stored in a single piece (fixed-length part and 9920 variable-length part combined) and fix various bugs found on the way. 9921 [Bodo Moeller] 9922 9923 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 9924 instead. BIO_gethostbyname() does not know what timeouts are 9925 appropriate, so entries would stay in cache even when they have 9926 become invalid. 9927 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 9928 9929 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 9930 faced with a pathologically small ClientHello fragment that does 9931 not contain client_version: Instead of aborting with an error, 9932 simply choose the highest available protocol version (i.e., 9933 TLS 1.0 unless it is disabled). In practice, ClientHello 9934 messages are never sent like this, but this change gives us 9935 strictly correct behaviour at least for TLS. 9936 [Bodo Moeller] 9937 9938 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 9939 never resets s->method to s->ctx->method when called from within 9940 one of the SSL handshake functions. 9941 [Bodo Moeller; problem pointed out by Niko Baric] 9942 9943 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 9944 (sent using the client's version number) if client_version is 9945 smaller than the protocol version in use. Also change 9946 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 9947 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 9948 the client will at least see that alert. 9949 [Bodo Moeller] 9950 9951 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 9952 correctly. 9953 [Bodo Moeller] 9954 9955 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 9956 client receives HelloRequest while in a handshake. 9957 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 9958 9959 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 9960 should end in 'break', not 'goto end' which circumvents various 9961 cleanups done in state SSL_ST_OK. But session related stuff 9962 must be disabled for SSL_ST_OK in the case that we just sent a 9963 HelloRequest. 9964 9965 Also avoid some overhead by not calling ssl_init_wbio_buffer() 9966 before just sending a HelloRequest. 9967 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 9968 9969 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 9970 reveal whether illegal block cipher padding was found or a MAC 9971 verification error occurred. (Neither SSLerr() codes nor alerts 9972 are directly visible to potential attackers, but the information 9973 may leak via logfiles.) 9974 9975 Similar changes are not required for the SSL 2.0 implementation 9976 because the number of padding bytes is sent in clear for SSL 2.0, 9977 and the extra bytes are just ignored. However ssl/s2_pkt.c 9978 failed to verify that the purported number of padding bytes is in 9979 the legal range. 9980 [Bodo Moeller] 9981 9982 *) Add OpenUNIX-8 support including shared libraries 9983 (Boyd Lynn Gerber <gerberb@zenez.com>). 9984 [Lutz Jaenicke] 9985 9986 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 9987 'wristwatch attack' using huge encoding parameters (cf. 9988 James H. Manger's CRYPTO 2001 paper). Note that the 9989 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 9990 encoding parameters and hence was not vulnerable. 9991 [Bodo Moeller] 9992 9993 *) BN_sqr() bug fix. 9994 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>] 9995 9996 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 9997 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 9998 followed by modular reduction. 9999 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 10000 10001 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 10002 equivalent based on BN_pseudo_rand() instead of BN_rand(). 10003 [Bodo Moeller] 10004 10005 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 10006 This function was broken, as the check for a new client hello message 10007 to handle SGC did not allow these large messages. 10008 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 10009 [Lutz Jaenicke] 10010 10011 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 10012 [Lutz Jaenicke] 10013 10014 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 10015 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 10016 [Lutz Jaenicke] 10017 10018 *) Rework the configuration and shared library support for Tru64 Unix. 10019 The configuration part makes use of modern compiler features and 10020 still retains old compiler behavior for those that run older versions 10021 of the OS. The shared library support part includes a variant that 10022 uses the RPATH feature, and is available through the special 10023 configuration target "alpha-cc-rpath", which will never be selected 10024 automatically. 10025 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 10026 10027 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 10028 with the same message size as in ssl3_get_certificate_request(). 10029 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 10030 messages might inadvertently be reject as too long. 10031 [Petr Lampa <lampa@fee.vutbr.cz>] 10032 10033 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 10034 [Andy Polyakov] 10035 10036 *) Modified SSL library such that the verify_callback that has been set 10037 specifically for an SSL object with SSL_set_verify() is actually being 10038 used. Before the change, a verify_callback set with this function was 10039 ignored and the verify_callback() set in the SSL_CTX at the time of 10040 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 10041 to allow the necessary settings. 10042 [Lutz Jaenicke] 10043 10044 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 10045 explicitly to NULL, as at least on Solaris 8 this seems not always to be 10046 done automatically (in contradiction to the requirements of the C 10047 standard). This made problems when used from OpenSSH. 10048 [Lutz Jaenicke] 10049 10050 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 10051 dh->length and always used 10052 10053 BN_rand_range(priv_key, dh->p). 10054 10055 BN_rand_range() is not necessary for Diffie-Hellman, and this 10056 specific range makes Diffie-Hellman unnecessarily inefficient if 10057 dh->length (recommended exponent length) is much smaller than the 10058 length of dh->p. We could use BN_rand_range() if the order of 10059 the subgroup was stored in the DH structure, but we only have 10060 dh->length. 10061 10062 So switch back to 10063 10064 BN_rand(priv_key, l, ...) 10065 10066 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 10067 otherwise. 10068 [Bodo Moeller] 10069 10070 *) In 10071 10072 RSA_eay_public_encrypt 10073 RSA_eay_private_decrypt 10074 RSA_eay_private_encrypt (signing) 10075 RSA_eay_public_decrypt (signature verification) 10076 10077 (default implementations for RSA_public_encrypt, 10078 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 10079 always reject numbers >= n. 10080 [Bodo Moeller] 10081 10082 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 10083 to synchronize access to 'locking_thread'. This is necessary on 10084 systems where access to 'locking_thread' (an 'unsigned long' 10085 variable) is not atomic. 10086 [Bodo Moeller] 10087 10088 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 10089 *before* setting the 'crypto_lock_rand' flag. The previous code had 10090 a race condition if 0 is a valid thread ID. 10091 [Travis Vitek <vitek@roguewave.com>] 10092 10093 *) Add support for shared libraries under Irix. 10094 [Albert Chin-A-Young <china@thewrittenword.com>] 10095 10096 *) Add configuration option to build on Linux on both big-endian and 10097 little-endian MIPS. 10098 [Ralf Baechle <ralf@uni-koblenz.de>] 10099 10100 *) Add the possibility to create shared libraries on HP-UX. 10101 [Richard Levitte] 10102 10103 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 10104 10105 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 10106 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 10107 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 10108 PRNG state recovery was possible based on the output of 10109 one PRNG request appropriately sized to gain knowledge on 10110 'md' followed by enough consecutive 1-byte PRNG requests 10111 to traverse all of 'state'. 10112 10113 1. When updating 'md_local' (the current thread's copy of 'md') 10114 during PRNG output generation, hash all of the previous 10115 'md_local' value, not just the half used for PRNG output. 10116 10117 2. Make the number of bytes from 'state' included into the hash 10118 independent from the number of PRNG bytes requested. 10119 10120 The first measure alone would be sufficient to avoid 10121 Markku-Juhani's attack. (Actually it had never occurred 10122 to me that the half of 'md_local' used for chaining was the 10123 half from which PRNG output bytes were taken -- I had always 10124 assumed that the secret half would be used.) The second 10125 measure makes sure that additional data from 'state' is never 10126 mixed into 'md_local' in small portions; this heuristically 10127 further strengthens the PRNG. 10128 [Bodo Moeller] 10129 10130 *) Fix crypto/bn/asm/mips3.s. 10131 [Andy Polyakov] 10132 10133 *) When only the key is given to "enc", the IV is undefined. Print out 10134 an error message in this case. 10135 [Lutz Jaenicke] 10136 10137 *) Handle special case when X509_NAME is empty in X509 printing routines. 10138 [Steve Henson] 10139 10140 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 10141 positive and less than q. 10142 [Bodo Moeller] 10143 10144 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 10145 used: it isn't thread safe and the add_lock_callback should handle 10146 that itself. 10147 [Paul Rose <Paul.Rose@bridge.com>] 10148 10149 *) Verify that incoming data obeys the block size in 10150 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 10151 [Bodo Moeller] 10152 10153 *) Fix OAEP check. 10154 [Ulf Möller, Bodo Möller] 10155 10156 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 10157 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 10158 when fixing the server behaviour for backwards-compatible 'client 10159 hello' messages. (Note that the attack is impractical against 10160 SSL 3.0 and TLS 1.0 anyway because length and version checking 10161 means that the probability of guessing a valid ciphertext is 10162 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 10163 paper.) 10164 10165 Before 0.9.5, the countermeasure (hide the error by generating a 10166 random 'decryption result') did not work properly because 10167 ERR_clear_error() was missing, meaning that SSL_get_error() would 10168 detect the supposedly ignored error. 10169 10170 Both problems are now fixed. 10171 [Bodo Moeller] 10172 10173 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 10174 (previously it was 1024). 10175 [Bodo Moeller] 10176 10177 *) Fix for compatibility mode trust settings: ignore trust settings 10178 unless some valid trust or reject settings are present. 10179 [Steve Henson] 10180 10181 *) Fix for blowfish EVP: its a variable length cipher. 10182 [Steve Henson] 10183 10184 *) Fix various bugs related to DSA S/MIME verification. Handle missing 10185 parameters in DSA public key structures and return an error in the 10186 DSA routines if parameters are absent. 10187 [Steve Henson] 10188 10189 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 10190 in the current directory if neither $RANDFILE nor $HOME was set. 10191 RAND_file_name() in 0.9.6a returned NULL in this case. This has 10192 caused some confusion to Windows users who haven't defined $HOME. 10193 Thus RAND_file_name() is changed again: e_os.h can define a 10194 DEFAULT_HOME, which will be used if $HOME is not set. 10195 For Windows, we use "C:"; on other platforms, we still require 10196 environment variables. 10197 10198 *) Move 'if (!initialized) RAND_poll()' into regions protected by 10199 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 10200 having multiple threads call RAND_poll() concurrently. 10201 [Bodo Moeller] 10202 10203 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 10204 combination of a flag and a thread ID variable. 10205 Otherwise while one thread is in ssleay_rand_bytes (which sets the 10206 flag), *other* threads can enter ssleay_add_bytes without obeying 10207 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 10208 that they do not hold after the first thread unsets add_do_not_lock). 10209 [Bodo Moeller] 10210 10211 *) Change bctest again: '-x' expressions are not available in all 10212 versions of 'test'. 10213 [Bodo Moeller] 10214 10215 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 10216 10217 *) Fix a couple of memory leaks in PKCS7_dataDecode() 10218 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 10219 10220 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 10221 the default extension for executables, if any. Also, make the perl 10222 scripts that use symlink() to test if it really exists and use "cp" 10223 if it doesn't. All this made OpenSSL compilable and installable in 10224 CygWin. 10225 [Richard Levitte] 10226 10227 *) Fix for asn1_GetSequence() for indefinite length constructed data. 10228 If SEQUENCE is length is indefinite just set c->slen to the total 10229 amount of data available. 10230 [Steve Henson, reported by shige@FreeBSD.org] 10231 [This change does not apply to 0.9.7.] 10232 10233 *) Change bctest to avoid here-documents inside command substitution 10234 (workaround for FreeBSD /bin/sh bug). 10235 For compatibility with Ultrix, avoid shell functions (introduced 10236 in the bctest version that searches along $PATH). 10237 [Bodo Moeller] 10238 10239 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 10240 with des_encrypt() defined on some operating systems, like Solaris 10241 and UnixWare. 10242 [Richard Levitte] 10243 10244 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 10245 On the Importance of Eliminating Errors in Cryptographic 10246 Computations, J. Cryptology 14 (2001) 2, 101-119, 10247 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 10248 [Ulf Moeller] 10249 10250 *) MIPS assembler BIGNUM division bug fix. 10251 [Andy Polyakov] 10252 10253 *) Disabled incorrect Alpha assembler code. 10254 [Richard Levitte] 10255 10256 *) Fix PKCS#7 decode routines so they correctly update the length 10257 after reading an EOC for the EXPLICIT tag. 10258 [Steve Henson] 10259 [This change does not apply to 0.9.7.] 10260 10261 *) Fix bug in PKCS#12 key generation routines. This was triggered 10262 if a 3DES key was generated with a 0 initial byte. Include 10263 PKCS12_BROKEN_KEYGEN compilation option to retain the old 10264 (but broken) behaviour. 10265 [Steve Henson] 10266 10267 *) Enhance bctest to search for a working bc along $PATH and print 10268 it when found. 10269 [Tim Rice <tim@multitalents.net> via Richard Levitte] 10270 10271 *) Fix memory leaks in err.c: free err_data string if necessary; 10272 don't write to the wrong index in ERR_set_error_data. 10273 [Bodo Moeller] 10274 10275 *) Implement ssl23_peek (analogous to ssl23_read), which previously 10276 did not exist. 10277 [Bodo Moeller] 10278 10279 *) Replace rdtsc with _emit statements for VC++ version 5. 10280 [Jeremy Cooper <jeremy@baymoo.org>] 10281 10282 *) Make it possible to reuse SSLv2 sessions. 10283 [Richard Levitte] 10284 10285 *) In copy_email() check for >= 0 as a return value for 10286 X509_NAME_get_index_by_NID() since 0 is a valid index. 10287 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 10288 10289 *) Avoid coredump with unsupported or invalid public keys by checking if 10290 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 10291 PKCS7_verify() fails with non detached data. 10292 [Steve Henson] 10293 10294 *) Don't use getenv in library functions when run as setuid/setgid. 10295 New function OPENSSL_issetugid(). 10296 [Ulf Moeller] 10297 10298 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 10299 due to incorrect handling of multi-threading: 10300 10301 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 10302 10303 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 10304 10305 3. Count how many times MemCheck_off() has been called so that 10306 nested use can be treated correctly. This also avoids 10307 inband-signalling in the previous code (which relied on the 10308 assumption that thread ID 0 is impossible). 10309 [Bodo Moeller] 10310 10311 *) Add "-rand" option also to s_client and s_server. 10312 [Lutz Jaenicke] 10313 10314 *) Fix CPU detection on Irix 6.x. 10315 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 10316 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 10317 10318 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 10319 was empty. 10320 [Steve Henson] 10321 [This change does not apply to 0.9.7.] 10322 10323 *) Use the cached encoding of an X509_NAME structure rather than 10324 copying it. This is apparently the reason for the libsafe "errors" 10325 but the code is actually correct. 10326 [Steve Henson] 10327 10328 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 10329 Bleichenbacher's DSA attack. 10330 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 10331 to be set and top=0 forces the highest bit to be set; top=-1 is new 10332 and leaves the highest bit random. 10333 [Ulf Moeller, Bodo Moeller] 10334 10335 *) In the NCONF_...-based implementations for CONF_... queries 10336 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 10337 a temporary CONF structure with the data component set to NULL 10338 (which gives segmentation faults in lh_retrieve). 10339 Instead, use NULL for the CONF pointer in CONF_get_string and 10340 CONF_get_number (which may use environment variables) and directly 10341 return NULL from CONF_get_section. 10342 [Bodo Moeller] 10343 10344 *) Fix potential buffer overrun for EBCDIC. 10345 [Ulf Moeller] 10346 10347 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 10348 keyUsage if basicConstraints absent for a CA. 10349 [Steve Henson] 10350 10351 *) Make SMIME_write_PKCS7() write mail header values with a format that 10352 is more generally accepted (no spaces before the semicolon), since 10353 some programs can't parse those values properly otherwise. Also make 10354 sure BIO's that break lines after each write do not create invalid 10355 headers. 10356 [Richard Levitte] 10357 10358 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 10359 macros previously used would not encode an empty SEQUENCE OF 10360 and break the signature. 10361 [Steve Henson] 10362 [This change does not apply to 0.9.7.] 10363 10364 *) Zero the premaster secret after deriving the master secret in 10365 DH ciphersuites. 10366 [Steve Henson] 10367 10368 *) Add some EVP_add_digest_alias registrations (as found in 10369 OpenSSL_add_all_digests()) to SSL_library_init() 10370 aka OpenSSL_add_ssl_algorithms(). This provides improved 10371 compatibility with peers using X.509 certificates 10372 with unconventional AlgorithmIdentifier OIDs. 10373 [Bodo Moeller] 10374 10375 *) Fix for Irix with NO_ASM. 10376 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 10377 10378 *) ./config script fixes. 10379 [Ulf Moeller, Richard Levitte] 10380 10381 *) Fix 'openssl passwd -1'. 10382 [Bodo Moeller] 10383 10384 *) Change PKCS12_key_gen_asc() so it can cope with non null 10385 terminated strings whose length is passed in the passlen 10386 parameter, for example from PEM callbacks. This was done 10387 by adding an extra length parameter to asc2uni(). 10388 [Steve Henson, reported by <oddissey@samsung.co.kr>] 10389 10390 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 10391 call failed, free the DSA structure. 10392 [Bodo Moeller] 10393 10394 *) Fix to uni2asc() to cope with zero length Unicode strings. 10395 These are present in some PKCS#12 files. 10396 [Steve Henson] 10397 10398 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 10399 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 10400 when writing a 32767 byte record. 10401 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 10402 10403 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 10404 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 10405 10406 (RSA objects have a reference count access to which is protected 10407 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 10408 so they are meant to be shared between threads.) 10409 [Bodo Moeller, Geoff Thorpe; original patch submitted by 10410 "Reddie, Steven" <Steven.Reddie@ca.com>] 10411 10412 *) Fix a deadlock in CRYPTO_mem_leaks(). 10413 [Bodo Moeller] 10414 10415 *) Use better test patterns in bntest. 10416 [Ulf Möller] 10417 10418 *) rand_win.c fix for Borland C. 10419 [Ulf Möller] 10420 10421 *) BN_rshift bugfix for n == 0. 10422 [Bodo Moeller] 10423 10424 *) Add a 'bctest' script that checks for some known 'bc' bugs 10425 so that 'make test' does not abort just because 'bc' is broken. 10426 [Bodo Moeller] 10427 10428 *) Store verify_result within SSL_SESSION also for client side to 10429 avoid potential security hole. (Re-used sessions on the client side 10430 always resulted in verify_result==X509_V_OK, not using the original 10431 result of the server certificate verification.) 10432 [Lutz Jaenicke] 10433 10434 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 10435 SSL3_RT_APPLICATION_DATA, return 0. 10436 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 10437 [Bodo Moeller] 10438 10439 *) Fix SSL_peek: 10440 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 10441 releases, have been re-implemented by renaming the previous 10442 implementations of ssl2_read and ssl3_read to ssl2_read_internal 10443 and ssl3_read_internal, respectively, and adding 'peek' parameters 10444 to them. The new ssl[23]_{read,peek} functions are calls to 10445 ssl[23]_read_internal with the 'peek' flag set appropriately. 10446 A 'peek' parameter has also been added to ssl3_read_bytes, which 10447 does the actual work for ssl3_read_internal. 10448 [Bodo Moeller] 10449 10450 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 10451 the method-specific "init()" handler. Also clean up ex_data after 10452 calling the method-specific "finish()" handler. Previously, this was 10453 happening the other way round. 10454 [Geoff Thorpe] 10455 10456 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 10457 The previous value, 12, was not always sufficient for BN_mod_exp(). 10458 [Bodo Moeller] 10459 10460 *) Make sure that shared libraries get the internal name engine with 10461 the full version number and not just 0. This should mark the 10462 shared libraries as not backward compatible. Of course, this should 10463 be changed again when we can guarantee backward binary compatibility. 10464 [Richard Levitte] 10465 10466 *) Fix typo in get_cert_by_subject() in by_dir.c 10467 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 10468 10469 *) Rework the system to generate shared libraries: 10470 10471 - Make note of the expected extension for the shared libraries and 10472 if there is a need for symbolic links from for example libcrypto.so.0 10473 to libcrypto.so.0.9.7. There is extended info in Configure for 10474 that. 10475 10476 - Make as few rebuilds of the shared libraries as possible. 10477 10478 - Still avoid linking the OpenSSL programs with the shared libraries. 10479 10480 - When installing, install the shared libraries separately from the 10481 static ones. 10482 [Richard Levitte] 10483 10484 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 10485 10486 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 10487 and not in SSL_clear because the latter is also used by the 10488 accept/connect functions; previously, the settings made by 10489 SSL_set_read_ahead would be lost during the handshake. 10490 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 10491 10492 *) Correct util/mkdef.pl to be selective about disabled algorithms. 10493 Previously, it would create entries for disabled algorithms no 10494 matter what. 10495 [Richard Levitte] 10496 10497 *) Added several new manual pages for SSL_* function. 10498 [Lutz Jaenicke] 10499 10500 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 10501 10502 *) In ssl23_get_client_hello, generate an error message when faced 10503 with an initial SSL 3.0/TLS record that is too small to contain the 10504 first two bytes of the ClientHello message, i.e. client_version. 10505 (Note that this is a pathologic case that probably has never happened 10506 in real life.) The previous approach was to use the version number 10507 from the record header as a substitute; but our protocol choice 10508 should not depend on that one because it is not authenticated 10509 by the Finished messages. 10510 [Bodo Moeller] 10511 10512 *) More robust randomness gathering functions for Windows. 10513 [Jeffrey Altman <jaltman@columbia.edu>] 10514 10515 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 10516 not set then we don't setup the error code for issuer check errors 10517 to avoid possibly overwriting other errors which the callback does 10518 handle. If an application does set the flag then we assume it knows 10519 what it is doing and can handle the new informational codes 10520 appropriately. 10521 [Steve Henson] 10522 10523 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 10524 a general "ANY" type, as such it should be able to decode anything 10525 including tagged types. However it didn't check the class so it would 10526 wrongly interpret tagged types in the same way as their universal 10527 counterpart and unknown types were just rejected. Changed so that the 10528 tagged and unknown types are handled in the same way as a SEQUENCE: 10529 that is the encoding is stored intact. There is also a new type 10530 "V_ASN1_OTHER" which is used when the class is not universal, in this 10531 case we have no idea what the actual type is so we just lump them all 10532 together. 10533 [Steve Henson] 10534 10535 *) On VMS, stdout may very well lead to a file that is written to 10536 in a record-oriented fashion. That means that every write() will 10537 write a separate record, which will be read separately by the 10538 programs trying to read from it. This can be very confusing. 10539 10540 The solution is to put a BIO filter in the way that will buffer 10541 text until a linefeed is reached, and then write everything a 10542 line at a time, so every record written will be an actual line, 10543 not chunks of lines and not (usually doesn't happen, but I've 10544 seen it once) several lines in one record. BIO_f_linebuffer() is 10545 the answer. 10546 10547 Currently, it's a VMS-only method, because that's where it has 10548 been tested well enough. 10549 [Richard Levitte] 10550 10551 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 10552 it can return incorrect results. 10553 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 10554 but it was in 0.9.6-beta[12].) 10555 [Bodo Moeller] 10556 10557 *) Disable the check for content being present when verifying detached 10558 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 10559 include zero length content when signing messages. 10560 [Steve Henson] 10561 10562 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 10563 BIO_ctrl (for BIO pairs). 10564 [Bodo Möller] 10565 10566 *) Add DSO method for VMS. 10567 [Richard Levitte] 10568 10569 *) Bug fix: Montgomery multiplication could produce results with the 10570 wrong sign. 10571 [Ulf Möller] 10572 10573 *) Add RPM specification openssl.spec and modify it to build three 10574 packages. The default package contains applications, application 10575 documentation and run-time libraries. The devel package contains 10576 include files, static libraries and function documentation. The 10577 doc package contains the contents of the doc directory. The original 10578 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 10579 [Richard Levitte] 10580 10581 *) Add a large number of documentation files for many SSL routines. 10582 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 10583 10584 *) Add a configuration entry for Sony News 4. 10585 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 10586 10587 *) Don't set the two most significant bits to one when generating a 10588 random number < q in the DSA library. 10589 [Ulf Möller] 10590 10591 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 10592 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 10593 the underlying transport is blocking) if a handshake took place. 10594 (The default behaviour is needed by applications such as s_client 10595 and s_server that use select() to determine when to use SSL_read; 10596 but for applications that know in advance when to expect data, it 10597 just makes things more complicated.) 10598 [Bodo Moeller] 10599 10600 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 10601 from EGD. 10602 [Ben Laurie] 10603 10604 *) Add a few more EBCDIC conditionals that make `req' and `x509' 10605 work better on such systems. 10606 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 10607 10608 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 10609 Update PKCS12_parse() so it copies the friendlyName and the 10610 keyid to the certificates aux info. 10611 [Steve Henson] 10612 10613 *) Fix bug in PKCS7_verify() which caused an infinite loop 10614 if there was more than one signature. 10615 [Sven Uszpelkat <su@celocom.de>] 10616 10617 *) Major change in util/mkdef.pl to include extra information 10618 about each symbol, as well as presenting variables as well 10619 as functions. This change means that there's n more need 10620 to rebuild the .num files when some algorithms are excluded. 10621 [Richard Levitte] 10622 10623 *) Allow the verify time to be set by an application, 10624 rather than always using the current time. 10625 [Steve Henson] 10626 10627 *) Phase 2 verify code reorganisation. The certificate 10628 verify code now looks up an issuer certificate by a 10629 number of criteria: subject name, authority key id 10630 and key usage. It also verifies self signed certificates 10631 by the same criteria. The main comparison function is 10632 X509_check_issued() which performs these checks. 10633 10634 Lot of changes were necessary in order to support this 10635 without completely rewriting the lookup code. 10636 10637 Authority and subject key identifier are now cached. 10638 10639 The LHASH 'certs' is X509_STORE has now been replaced 10640 by a STACK_OF(X509_OBJECT). This is mainly because an 10641 LHASH can't store or retrieve multiple objects with 10642 the same hash value. 10643 10644 As a result various functions (which were all internal 10645 use only) have changed to handle the new X509_STORE 10646 structure. This will break anything that messed round 10647 with X509_STORE internally. 10648 10649 The functions X509_STORE_add_cert() now checks for an 10650 exact match, rather than just subject name. 10651 10652 The X509_STORE API doesn't directly support the retrieval 10653 of multiple certificates matching a given criteria, however 10654 this can be worked round by performing a lookup first 10655 (which will fill the cache with candidate certificates) 10656 and then examining the cache for matches. This is probably 10657 the best we can do without throwing out X509_LOOKUP 10658 entirely (maybe later...). 10659 10660 The X509_VERIFY_CTX structure has been enhanced considerably. 10661 10662 All certificate lookup operations now go via a get_issuer() 10663 callback. Although this currently uses an X509_STORE it 10664 can be replaced by custom lookups. This is a simple way 10665 to bypass the X509_STORE hackery necessary to make this 10666 work and makes it possible to use more efficient techniques 10667 in future. A very simple version which uses a simple 10668 STACK for its trusted certificate store is also provided 10669 using X509_STORE_CTX_trusted_stack(). 10670 10671 The verify_cb() and verify() callbacks now have equivalents 10672 in the X509_STORE_CTX structure. 10673 10674 X509_STORE_CTX also has a 'flags' field which can be used 10675 to customise the verify behaviour. 10676 [Steve Henson] 10677 10678 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 10679 excludes S/MIME capabilities. 10680 [Steve Henson] 10681 10682 *) When a certificate request is read in keep a copy of the 10683 original encoding of the signed data and use it when outputting 10684 again. Signatures then use the original encoding rather than 10685 a decoded, encoded version which may cause problems if the 10686 request is improperly encoded. 10687 [Steve Henson] 10688 10689 *) For consistency with other BIO_puts implementations, call 10690 buffer_write(b, ...) directly in buffer_puts instead of calling 10691 BIO_write(b, ...). 10692 10693 In BIO_puts, increment b->num_write as in BIO_write. 10694 [Peter.Sylvester@EdelWeb.fr] 10695 10696 *) Fix BN_mul_word for the case where the word is 0. (We have to use 10697 BN_zero, we may not return a BIGNUM with an array consisting of 10698 words set to zero.) 10699 [Bodo Moeller] 10700 10701 *) Avoid calling abort() from within the library when problems are 10702 detected, except if preprocessor symbols have been defined 10703 (such as REF_CHECK, BN_DEBUG etc.). 10704 [Bodo Moeller] 10705 10706 *) New openssl application 'rsautl'. This utility can be 10707 used for low level RSA operations. DER public key 10708 BIO/fp routines also added. 10709 [Steve Henson] 10710 10711 *) New Configure entry and patches for compiling on QNX 4. 10712 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 10713 10714 *) A demo state-machine implementation was sponsored by 10715 Nuron (http://www.nuron.com/) and is now available in 10716 demos/state_machine. 10717 [Ben Laurie] 10718 10719 *) New options added to the 'dgst' utility for signature 10720 generation and verification. 10721 [Steve Henson] 10722 10723 *) Unrecognized PKCS#7 content types are now handled via a 10724 catch all ASN1_TYPE structure. This allows unsupported 10725 types to be stored as a "blob" and an application can 10726 encode and decode it manually. 10727 [Steve Henson] 10728 10729 *) Fix various signed/unsigned issues to make a_strex.c 10730 compile under VC++. 10731 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 10732 10733 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 10734 length if passed a buffer. ASN1_INTEGER_to_BN failed 10735 if passed a NULL BN and its argument was negative. 10736 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 10737 10738 *) Modification to PKCS#7 encoding routines to output definite 10739 length encoding. Since currently the whole structures are in 10740 memory there's not real point in using indefinite length 10741 constructed encoding. However if OpenSSL is compiled with 10742 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 10743 [Steve Henson] 10744 10745 *) Added BIO_vprintf() and BIO_vsnprintf(). 10746 [Richard Levitte] 10747 10748 *) Added more prefixes to parse for in the strings written 10749 through a logging bio, to cover all the levels that are available 10750 through syslog. The prefixes are now: 10751 10752 PANIC, EMERG, EMR => LOG_EMERG 10753 ALERT, ALR => LOG_ALERT 10754 CRIT, CRI => LOG_CRIT 10755 ERROR, ERR => LOG_ERR 10756 WARNING, WARN, WAR => LOG_WARNING 10757 NOTICE, NOTE, NOT => LOG_NOTICE 10758 INFO, INF => LOG_INFO 10759 DEBUG, DBG => LOG_DEBUG 10760 10761 and as before, if none of those prefixes are present at the 10762 beginning of the string, LOG_ERR is chosen. 10763 10764 On Win32, the LOG_* levels are mapped according to this: 10765 10766 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 10767 LOG_WARNING => EVENTLOG_WARNING_TYPE 10768 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 10769 10770 [Richard Levitte] 10771 10772 *) Made it possible to reconfigure with just the configuration 10773 argument "reconf" or "reconfigure". The command line arguments 10774 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 10775 and are retrieved from there when reconfiguring. 10776 [Richard Levitte] 10777 10778 *) MD4 implemented. 10779 [Assar Westerlund <assar@sics.se>, Richard Levitte] 10780 10781 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 10782 [Richard Levitte] 10783 10784 *) The obj_dat.pl script was messing up the sorting of object 10785 names. The reason was that it compared the quoted version 10786 of strings as a result "OCSP" > "OCSP Signing" because 10787 " > SPACE. Changed script to store unquoted versions of 10788 names and add quotes on output. It was also omitting some 10789 names from the lookup table if they were given a default 10790 value (that is if SN is missing it is given the same 10791 value as LN and vice versa), these are now added on the 10792 grounds that if an object has a name we should be able to 10793 look it up. Finally added warning output when duplicate 10794 short or long names are found. 10795 [Steve Henson] 10796 10797 *) Changes needed for Tandem NSK. 10798 [Scott Uroff <scott@xypro.com>] 10799 10800 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 10801 RSA_padding_check_SSLv23(), special padding was never detected 10802 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 10803 version rollback attacks was not effective. 10804 10805 In s23_clnt.c, don't use special rollback-attack detection padding 10806 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 10807 client; similarly, in s23_srvr.c, don't do the rollback check if 10808 SSL 2.0 is the only protocol enabled in the server. 10809 [Bodo Moeller] 10810 10811 *) Make it possible to get hexdumps of unprintable data with 'openssl 10812 asn1parse'. By implication, the functions ASN1_parse_dump() and 10813 BIO_dump_indent() are added. 10814 [Richard Levitte] 10815 10816 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 10817 these print out strings and name structures based on various 10818 flags including RFC2253 support and proper handling of 10819 multibyte characters. Added options to the 'x509' utility 10820 to allow the various flags to be set. 10821 [Steve Henson] 10822 10823 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 10824 Also change the functions X509_cmp_current_time() and 10825 X509_gmtime_adj() work with an ASN1_TIME structure, 10826 this will enable certificates using GeneralizedTime in validity 10827 dates to be checked. 10828 [Steve Henson] 10829 10830 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 10831 negative public key encodings) on by default, 10832 NO_NEG_PUBKEY_BUG can be set to disable it. 10833 [Steve Henson] 10834 10835 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 10836 content octets. An i2c_ASN1_OBJECT is unnecessary because 10837 the encoding can be trivially obtained from the structure. 10838 [Steve Henson] 10839 10840 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 10841 not read locks (CRYPTO_r_[un]lock). 10842 [Bodo Moeller] 10843 10844 *) A first attempt at creating official support for shared 10845 libraries through configuration. I've kept it so the 10846 default is static libraries only, and the OpenSSL programs 10847 are always statically linked for now, but there are 10848 preparations for dynamic linking in place. 10849 This has been tested on Linux and Tru64. 10850 [Richard Levitte] 10851 10852 *) Randomness polling function for Win9x, as described in: 10853 Peter Gutmann, Software Generation of Practically Strong 10854 Random Numbers. 10855 [Ulf Möller] 10856 10857 *) Fix so PRNG is seeded in req if using an already existing 10858 DSA key. 10859 [Steve Henson] 10860 10861 *) New options to smime application. -inform and -outform 10862 allow alternative formats for the S/MIME message including 10863 PEM and DER. The -content option allows the content to be 10864 specified separately. This should allow things like Netscape 10865 form signing output easier to verify. 10866 [Steve Henson] 10867 10868 *) Fix the ASN1 encoding of tags using the 'long form'. 10869 [Steve Henson] 10870 10871 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 10872 STRING types. These convert content octets to and from the 10873 underlying type. The actual tag and length octets are 10874 already assumed to have been read in and checked. These 10875 are needed because all other string types have virtually 10876 identical handling apart from the tag. By having versions 10877 of the ASN1 functions that just operate on content octets 10878 IMPLICIT tagging can be handled properly. It also allows 10879 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 10880 and ASN1_INTEGER are identical apart from the tag. 10881 [Steve Henson] 10882 10883 *) Change the handling of OID objects as follows: 10884 10885 - New object identifiers are inserted in objects.txt, following 10886 the syntax given in objects.README. 10887 - objects.pl is used to process obj_mac.num and create a new 10888 obj_mac.h. 10889 - obj_dat.pl is used to create a new obj_dat.h, using the data in 10890 obj_mac.h. 10891 10892 This is currently kind of a hack, and the perl code in objects.pl 10893 isn't very elegant, but it works as I intended. The simplest way 10894 to check that it worked correctly is to look in obj_dat.h and 10895 check the array nid_objs and make sure the objects haven't moved 10896 around (this is important!). Additions are OK, as well as 10897 consistent name changes. 10898 [Richard Levitte] 10899 10900 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 10901 [Bodo Moeller] 10902 10903 *) Addition of the command line parameter '-rand file' to 'openssl req'. 10904 The given file adds to whatever has already been seeded into the 10905 random pool through the RANDFILE configuration file option or 10906 environment variable, or the default random state file. 10907 [Richard Levitte] 10908 10909 *) mkstack.pl now sorts each macro group into lexical order. 10910 Previously the output order depended on the order the files 10911 appeared in the directory, resulting in needless rewriting 10912 of safestack.h . 10913 [Steve Henson] 10914 10915 *) Patches to make OpenSSL compile under Win32 again. Mostly 10916 work arounds for the VC++ problem that it treats func() as 10917 func(void). Also stripped out the parts of mkdef.pl that 10918 added extra typesafe functions: these no longer exist. 10919 [Steve Henson] 10920 10921 *) Reorganisation of the stack code. The macros are now all 10922 collected in safestack.h . Each macro is defined in terms of 10923 a "stack macro" of the form SKM_<name>(type, a, b). The 10924 DEBUG_SAFESTACK is now handled in terms of function casts, 10925 this has the advantage of retaining type safety without the 10926 use of additional functions. If DEBUG_SAFESTACK is not defined 10927 then the non typesafe macros are used instead. Also modified the 10928 mkstack.pl script to handle the new form. Needs testing to see 10929 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 10930 the default if no major problems. Similar behaviour for ASN1_SET_OF 10931 and PKCS12_STACK_OF. 10932 [Steve Henson] 10933 10934 *) When some versions of IIS use the 'NET' form of private key the 10935 key derivation algorithm is different. Normally MD5(password) is 10936 used as a 128 bit RC4 key. In the modified case 10937 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some 10938 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 10939 as the old Netscape_RSA functions except they have an additional 10940 'sgckey' parameter which uses the modified algorithm. Also added 10941 an -sgckey command line option to the rsa utility. Thanks to 10942 Adrian Peck <bertie@ncipher.com> for posting details of the modified 10943 algorithm to openssl-dev. 10944 [Steve Henson] 10945 10946 *) The evp_local.h macros were using 'c.##kname' which resulted in 10947 invalid expansion on some systems (SCO 5.0.5 for example). 10948 Corrected to 'c.kname'. 10949 [Phillip Porch <root@theporch.com>] 10950 10951 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 10952 a STACK of email addresses from a certificate or request, these look 10953 in the subject name and the subject alternative name extensions and 10954 omit any duplicate addresses. 10955 [Steve Henson] 10956 10957 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 10958 This makes DSA verification about 2 % faster. 10959 [Bodo Moeller] 10960 10961 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 10962 (meaning that now 2^5 values will be precomputed, which is only 4 KB 10963 plus overhead for 1024 bit moduli). 10964 This makes exponentiations about 0.5 % faster for 1024 bit 10965 exponents (as measured by "openssl speed rsa2048"). 10966 [Bodo Moeller] 10967 10968 *) Rename memory handling macros to avoid conflicts with other 10969 software: 10970 Malloc => OPENSSL_malloc 10971 Malloc_locked => OPENSSL_malloc_locked 10972 Realloc => OPENSSL_realloc 10973 Free => OPENSSL_free 10974 [Richard Levitte] 10975 10976 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 10977 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 10978 [Bodo Moeller] 10979 10980 *) CygWin32 support. 10981 [John Jarvie <jjarvie@newsguy.com>] 10982 10983 *) The type-safe stack code has been rejigged. It is now only compiled 10984 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 10985 by default all type-specific stack functions are "#define"d back to 10986 standard stack functions. This results in more streamlined output 10987 but retains the type-safety checking possibilities of the original 10988 approach. 10989 [Geoff Thorpe] 10990 10991 *) The STACK code has been cleaned up, and certain type declarations 10992 that didn't make a lot of sense have been brought in line. This has 10993 also involved a cleanup of sorts in safestack.h to more correctly 10994 map type-safe stack functions onto their plain stack counterparts. 10995 This work has also resulted in a variety of "const"ifications of 10996 lots of the code, especially "_cmp" operations which should normally 10997 be prototyped with "const" parameters anyway. 10998 [Geoff Thorpe] 10999 11000 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 11001 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 11002 (The PRNG state consists of two parts, the large pool 'state' and 'md', 11003 where all of 'md' is used each time the PRNG is used, but 'state' 11004 is used only indexed by a cyclic counter. As entropy may not be 11005 well distributed from the beginning, 'md' is important as a 11006 chaining variable. However, the output function chains only half 11007 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 11008 all of 'md', and seeding with STATE_SIZE dummy bytes will result 11009 in all of 'state' being rewritten, with the new values depending 11010 on virtually all of 'md'. This overcomes the 80 bit limitation.) 11011 [Bodo Moeller] 11012 11013 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 11014 the handshake is continued after ssl_verify_cert_chain(); 11015 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 11016 can lead to 'unexplainable' connection aborts later. 11017 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 11018 11019 *) Major EVP API cipher revision. 11020 Add hooks for extra EVP features. This allows various cipher 11021 parameters to be set in the EVP interface. Support added for variable 11022 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 11023 setting of RC2 and RC5 parameters. 11024 11025 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 11026 ciphers. 11027 11028 Remove lots of duplicated code from the EVP library. For example *every* 11029 cipher init() function handles the 'iv' in the same way according to the 11030 cipher mode. They also all do nothing if the 'key' parameter is NULL and 11031 for CFB and OFB modes they zero ctx->num. 11032 11033 New functionality allows removal of S/MIME code RC2 hack. 11034 11035 Most of the routines have the same form and so can be declared in terms 11036 of macros. 11037 11038 By shifting this to the top level EVP_CipherInit() it can be removed from 11039 all individual ciphers. If the cipher wants to handle IVs or keys 11040 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 11041 flags. 11042 11043 Change lots of functions like EVP_EncryptUpdate() to now return a 11044 value: although software versions of the algorithms cannot fail 11045 any installed hardware versions can. 11046 [Steve Henson] 11047 11048 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 11049 this option is set, tolerate broken clients that send the negotiated 11050 protocol version number instead of the requested protocol version 11051 number. 11052 [Bodo Moeller] 11053 11054 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 11055 i.e. non-zero for export ciphersuites, zero otherwise. 11056 Previous versions had this flag inverted, inconsistent with 11057 rsa_tmp_cb (..._TMP_RSA_CB). 11058 [Bodo Moeller; problem reported by Amit Chopra] 11059 11060 *) Add missing DSA library text string. Work around for some IIS 11061 key files with invalid SEQUENCE encoding. 11062 [Steve Henson] 11063 11064 *) Add a document (doc/standards.txt) that list all kinds of standards 11065 and so on that are implemented in OpenSSL. 11066 [Richard Levitte] 11067 11068 *) Enhance c_rehash script. Old version would mishandle certificates 11069 with the same subject name hash and wouldn't handle CRLs at all. 11070 Added -fingerprint option to crl utility, to support new c_rehash 11071 features. 11072 [Steve Henson] 11073 11074 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 11075 [Ulf Möller] 11076 11077 *) Fix for SSL server purpose checking. Server checking was 11078 rejecting certificates which had extended key usage present 11079 but no ssl client purpose. 11080 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 11081 11082 *) Make PKCS#12 code work with no password. The PKCS#12 spec 11083 is a little unclear about how a blank password is handled. 11084 Since the password in encoded as a BMPString with terminating 11085 double NULL a zero length password would end up as just the 11086 double NULL. However no password at all is different and is 11087 handled differently in the PKCS#12 key generation code. NS 11088 treats a blank password as zero length. MSIE treats it as no 11089 password on export: but it will try both on import. We now do 11090 the same: PKCS12_parse() tries zero length and no password if 11091 the password is set to "" or NULL (NULL is now a valid password: 11092 it wasn't before) as does the pkcs12 application. 11093 [Steve Henson] 11094 11095 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 11096 perror when PEM_read_bio_X509_REQ fails, the error message must 11097 be obtained from the error queue. 11098 [Bodo Moeller] 11099 11100 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 11101 it in ERR_remove_state if appropriate, and change ERR_get_state 11102 accordingly to avoid race conditions (this is necessary because 11103 thread_hash is no longer constant once set). 11104 [Bodo Moeller] 11105 11106 *) Bugfix for linux-elf makefile.one. 11107 [Ulf Möller] 11108 11109 *) RSA_get_default_method() will now cause a default 11110 RSA_METHOD to be chosen if one doesn't exist already. 11111 Previously this was only set during a call to RSA_new() 11112 or RSA_new_method(NULL) meaning it was possible for 11113 RSA_get_default_method() to return NULL. 11114 [Geoff Thorpe] 11115 11116 *) Added native name translation to the existing DSO code 11117 that will convert (if the flag to do so is set) filenames 11118 that are sufficiently small and have no path information 11119 into a canonical native form. Eg. "blah" converted to 11120 "libblah.so" or "blah.dll" etc. 11121 [Geoff Thorpe] 11122 11123 *) New function ERR_error_string_n(e, buf, len) which is like 11124 ERR_error_string(e, buf), but writes at most 'len' bytes 11125 including the 0 terminator. For ERR_error_string_n, 'buf' 11126 may not be NULL. 11127 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 11128 11129 *) CONF library reworked to become more general. A new CONF 11130 configuration file reader "class" is implemented as well as a 11131 new functions (NCONF_*, for "New CONF") to handle it. The now 11132 old CONF_* functions are still there, but are reimplemented to 11133 work in terms of the new functions. Also, a set of functions 11134 to handle the internal storage of the configuration data is 11135 provided to make it easier to write new configuration file 11136 reader "classes" (I can definitely see something reading a 11137 configuration file in XML format, for example), called _CONF_*, 11138 or "the configuration storage API"... 11139 11140 The new configuration file reading functions are: 11141 11142 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 11143 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 11144 11145 NCONF_default, NCONF_WIN32 11146 11147 NCONF_dump_fp, NCONF_dump_bio 11148 11149 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 11150 NCONF_new creates a new CONF object. This works in the same way 11151 as other interfaces in OpenSSL, like the BIO interface. 11152 NCONF_dump_* dump the internal storage of the configuration file, 11153 which is useful for debugging. All other functions take the same 11154 arguments as the old CONF_* functions with the exception of the 11155 first that must be a `CONF *' instead of a `LHASH *'. 11156 11157 To make it easier to use the new classes with the old CONF_* functions, 11158 the function CONF_set_default_method is provided. 11159 [Richard Levitte] 11160 11161 *) Add '-tls1' option to 'openssl ciphers', which was already 11162 mentioned in the documentation but had not been implemented. 11163 (This option is not yet really useful because even the additional 11164 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 11165 [Bodo Moeller] 11166 11167 *) Initial DSO code added into libcrypto for letting OpenSSL (and 11168 OpenSSL-based applications) load shared libraries and bind to 11169 them in a portable way. 11170 [Geoff Thorpe, with contributions from Richard Levitte] 11171 11172 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 11173 11174 *) Make sure _lrotl and _lrotr are only used with MSVC. 11175 11176 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 11177 (the default implementation of RAND_status). 11178 11179 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 11180 to '-clrext' (= clear extensions), as intended and documented. 11181 [Bodo Moeller; inconsistency pointed out by Michael Attili 11182 <attili@amaxo.com>] 11183 11184 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 11185 was larger than the MD block size. 11186 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 11187 11188 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 11189 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 11190 using the passed key: if the passed key was a private key the result 11191 of X509_print(), for example, would be to print out all the private key 11192 components. 11193 [Steve Henson] 11194 11195 *) des_quad_cksum() byte order bug fix. 11196 [Ulf Möller, using the problem description in krb4-0.9.7, where 11197 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 11198 11199 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 11200 discouraged. 11201 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 11202 11203 *) For easily testing in shell scripts whether some command 11204 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 11205 returns with exit code 0 iff no command of the given name is available. 11206 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 11207 the output goes to stdout and nothing is printed to stderr. 11208 Additional arguments are always ignored. 11209 11210 Since for each cipher there is a command of the same name, 11211 the 'no-cipher' compilation switches can be tested this way. 11212 11213 ('openssl no-XXX' is not able to detect pseudo-commands such 11214 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 11215 [Bodo Moeller] 11216 11217 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 11218 [Bodo Moeller] 11219 11220 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 11221 is set; it will be thrown away anyway because each handshake creates 11222 its own key. 11223 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 11224 to parameters -- in previous versions (since OpenSSL 0.9.3) the 11225 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning 11226 you effectively got SSL_OP_SINGLE_DH_USE when using this macro. 11227 [Bodo Moeller] 11228 11229 *) New s_client option -ign_eof: EOF at stdin is ignored, and 11230 'Q' and 'R' lose their special meanings (quit/renegotiate). 11231 This is part of what -quiet does; unlike -quiet, -ign_eof 11232 does not suppress any output. 11233 [Richard Levitte] 11234 11235 *) Add compatibility options to the purpose and trust code. The 11236 purpose X509_PURPOSE_ANY is "any purpose" which automatically 11237 accepts a certificate or CA, this was the previous behaviour, 11238 with all the associated security issues. 11239 11240 X509_TRUST_COMPAT is the old trust behaviour: only and 11241 automatically trust self signed roots in certificate store. A 11242 new trust setting X509_TRUST_DEFAULT is used to specify that 11243 a purpose has no associated trust setting and it should instead 11244 use the value in the default purpose. 11245 [Steve Henson] 11246 11247 *) Fix the PKCS#8 DSA private key code so it decodes keys again 11248 and fix a memory leak. 11249 [Steve Henson] 11250 11251 *) In util/mkerr.pl (which implements 'make errors'), preserve 11252 reason strings from the previous version of the .c file, as 11253 the default to have only downcase letters (and digits) in 11254 automatically generated reasons codes is not always appropriate. 11255 [Bodo Moeller] 11256 11257 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 11258 using strerror. Previously, ERR_reason_error_string() returned 11259 library names as reason strings for SYSerr; but SYSerr is a special 11260 case where small numbers are errno values, not library numbers. 11261 [Bodo Moeller] 11262 11263 *) Add '-dsaparam' option to 'openssl dhparam' application. This 11264 converts DSA parameters into DH parameters. (When creating parameters, 11265 DSA_generate_parameters is used.) 11266 [Bodo Moeller] 11267 11268 *) Include 'length' (recommended exponent length) in C code generated 11269 by 'openssl dhparam -C'. 11270 [Bodo Moeller] 11271 11272 *) The second argument to set_label in perlasm was already being used 11273 so couldn't be used as a "file scope" flag. Moved to third argument 11274 which was free. 11275 [Steve Henson] 11276 11277 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 11278 instead of RAND_bytes for encryption IVs and salts. 11279 [Bodo Moeller] 11280 11281 *) Include RAND_status() into RAND_METHOD instead of implementing 11282 it only for md_rand.c Otherwise replacing the PRNG by calling 11283 RAND_set_rand_method would be impossible. 11284 [Bodo Moeller] 11285 11286 *) Don't let DSA_generate_key() enter an infinite loop if the random 11287 number generation fails. 11288 [Bodo Moeller] 11289 11290 *) New 'rand' application for creating pseudo-random output. 11291 [Bodo Moeller] 11292 11293 *) Added configuration support for Linux/IA64 11294 [Rolf Haberrecker <rolf@suse.de>] 11295 11296 *) Assembler module support for Mingw32. 11297 [Ulf Möller] 11298 11299 *) Shared library support for HPUX (in shlib/). 11300 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 11301 11302 *) Shared library support for Solaris gcc. 11303 [Lutz Behnke <behnke@trustcenter.de>] 11304 11305 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 11306 11307 *) PKCS7_encrypt() was adding text MIME headers twice because they 11308 were added manually and by SMIME_crlf_copy(). 11309 [Steve Henson] 11310 11311 *) In bntest.c don't call BN_rand with zero bits argument. 11312 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 11313 11314 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 11315 case was implemented. This caused BN_div_recp() to fail occasionally. 11316 [Ulf Möller] 11317 11318 *) Add an optional second argument to the set_label() in the perl 11319 assembly language builder. If this argument exists and is set 11320 to 1 it signals that the assembler should use a symbol whose 11321 scope is the entire file, not just the current function. This 11322 is needed with MASM which uses the format label:: for this scope. 11323 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 11324 11325 *) Change the ASN1 types so they are typedefs by default. Before 11326 almost all types were #define'd to ASN1_STRING which was causing 11327 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 11328 for example. 11329 [Steve Henson] 11330 11331 *) Change names of new functions to the new get1/get0 naming 11332 convention: After 'get1', the caller owns a reference count 11333 and has to call ..._free; 'get0' returns a pointer to some 11334 data structure without incrementing reference counters. 11335 (Some of the existing 'get' functions increment a reference 11336 counter, some don't.) 11337 Similarly, 'set1' and 'add1' functions increase reference 11338 counters or duplicate objects. 11339 [Steve Henson] 11340 11341 *) Allow for the possibility of temp RSA key generation failure: 11342 the code used to assume it always worked and crashed on failure. 11343 [Steve Henson] 11344 11345 *) Fix potential buffer overrun problem in BIO_printf(). 11346 [Ulf Möller, using public domain code by Patrick Powell; problem 11347 pointed out by David Sacerdote <das33@cornell.edu>] 11348 11349 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 11350 RAND_egd() and RAND_status(). In the command line application, 11351 the EGD socket can be specified like a seed file using RANDFILE 11352 or -rand. 11353 [Ulf Möller] 11354 11355 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 11356 Some CAs (e.g. Verisign) distribute certificates in this form. 11357 [Steve Henson] 11358 11359 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 11360 list to exclude them. This means that no special compilation option 11361 is needed to use anonymous DH: it just needs to be included in the 11362 cipher list. 11363 [Steve Henson] 11364 11365 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 11366 EVP_MD_type. The old functionality is available in a new macro called 11367 EVP_MD_md(). Change code that uses it and update docs. 11368 [Steve Henson] 11369 11370 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 11371 where the 'void *' argument is replaced by a function pointer argument. 11372 Previously 'void *' was abused to point to functions, which works on 11373 many platforms, but is not correct. As these functions are usually 11374 called by macros defined in OpenSSL header files, most source code 11375 should work without changes. 11376 [Richard Levitte] 11377 11378 *) <openssl/opensslconf.h> (which is created by Configure) now contains 11379 sections with information on -D... compiler switches used for 11380 compiling the library so that applications can see them. To enable 11381 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 11382 must be defined. E.g., 11383 #define OPENSSL_ALGORITHM_DEFINES 11384 #include <openssl/opensslconf.h> 11385 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 11386 [Richard Levitte, Ulf and Bodo Möller] 11387 11388 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 11389 record layer. 11390 [Bodo Moeller] 11391 11392 *) Change the 'other' type in certificate aux info to a STACK_OF 11393 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 11394 the required ASN1 format: arbitrary types determined by an OID. 11395 [Steve Henson] 11396 11397 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 11398 argument to 'req'. This is not because the function is newer or 11399 better than others it just uses the work 'NEW' in the certificate 11400 request header lines. Some software needs this. 11401 [Steve Henson] 11402 11403 *) Reorganise password command line arguments: now passwords can be 11404 obtained from various sources. Delete the PEM_cb function and make 11405 it the default behaviour: i.e. if the callback is NULL and the 11406 usrdata argument is not NULL interpret it as a null terminated pass 11407 phrase. If usrdata and the callback are NULL then the pass phrase 11408 is prompted for as usual. 11409 [Steve Henson] 11410 11411 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 11412 the support is automatically enabled. The resulting binaries will 11413 autodetect the card and use it if present. 11414 [Ben Laurie and Compaq Inc.] 11415 11416 *) Work around for Netscape hang bug. This sends certificate request 11417 and server done in one record. Since this is perfectly legal in the 11418 SSL/TLS protocol it isn't a "bug" option and is on by default. See 11419 the bugs/SSLv3 entry for more info. 11420 [Steve Henson] 11421 11422 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 11423 [Andy Polyakov] 11424 11425 *) Add -rand argument to smime and pkcs12 applications and read/write 11426 of seed file. 11427 [Steve Henson] 11428 11429 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 11430 [Bodo Moeller] 11431 11432 *) Add command line password options to the remaining applications. 11433 [Steve Henson] 11434 11435 *) Bug fix for BN_div_recp() for numerators with an even number of 11436 bits. 11437 [Ulf Möller] 11438 11439 *) More tests in bntest.c, and changed test_bn output. 11440 [Ulf Möller] 11441 11442 *) ./config recognizes MacOS X now. 11443 [Andy Polyakov] 11444 11445 *) Bug fix for BN_div() when the first words of num and divisor are 11446 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 11447 [Ulf Möller] 11448 11449 *) Add support for various broken PKCS#8 formats, and command line 11450 options to produce them. 11451 [Steve Henson] 11452 11453 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 11454 get temporary BIGNUMs from a BN_CTX. 11455 [Ulf Möller] 11456 11457 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 11458 for p == 0. 11459 [Ulf Möller] 11460 11461 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 11462 include a #define from the old name to the new. The original intent 11463 was that statically linked binaries could for example just call 11464 SSLeay_add_all_ciphers() to just add ciphers to the table and not 11465 link with digests. This never worked because SSLeay_add_all_digests() 11466 and SSLeay_add_all_ciphers() were in the same source file so calling 11467 one would link with the other. They are now in separate source files. 11468 [Steve Henson] 11469 11470 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 11471 [Steve Henson] 11472 11473 *) Use a less unusual form of the Miller-Rabin primality test (it used 11474 a binary algorithm for exponentiation integrated into the Miller-Rabin 11475 loop, our standard modexp algorithms are faster). 11476 [Bodo Moeller] 11477 11478 *) Support for the EBCDIC character set completed. 11479 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 11480 11481 *) Source code cleanups: use const where appropriate, eliminate casts, 11482 use void * instead of char * in lhash. 11483 [Ulf Möller] 11484 11485 *) Bugfix: ssl3_send_server_key_exchange was not restartable 11486 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 11487 this the server could overwrite ephemeral keys that the client 11488 has already seen). 11489 [Bodo Moeller] 11490 11491 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 11492 using 50 iterations of the Rabin-Miller test. 11493 11494 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 11495 iterations of the Rabin-Miller test as required by the appendix 11496 to FIPS PUB 186[-1]) instead of DSA_is_prime. 11497 As BN_is_prime_fasttest includes trial division, DSA parameter 11498 generation becomes much faster. 11499 11500 This implies a change for the callback functions in DSA_is_prime 11501 and DSA_generate_parameters: The callback function is called once 11502 for each positive witness in the Rabin-Miller test, not just 11503 occasionally in the inner loop; and the parameters to the 11504 callback function now provide an iteration count for the outer 11505 loop rather than for the current invocation of the inner loop. 11506 DSA_generate_parameters additionally can call the callback 11507 function with an 'iteration count' of -1, meaning that a 11508 candidate has passed the trial division test (when q is generated 11509 from an application-provided seed, trial division is skipped). 11510 [Bodo Moeller] 11511 11512 *) New function BN_is_prime_fasttest that optionally does trial 11513 division before starting the Rabin-Miller test and has 11514 an additional BN_CTX * argument (whereas BN_is_prime always 11515 has to allocate at least one BN_CTX). 11516 'callback(1, -1, cb_arg)' is called when a number has passed the 11517 trial division stage. 11518 [Bodo Moeller] 11519 11520 *) Fix for bug in CRL encoding. The validity dates weren't being handled 11521 as ASN1_TIME. 11522 [Steve Henson] 11523 11524 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 11525 [Steve Henson] 11526 11527 *) New function BN_pseudo_rand(). 11528 [Ulf Möller] 11529 11530 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 11531 bignum version of BN_from_montgomery() with the working code from 11532 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 11533 the comments. 11534 [Ulf Möller] 11535 11536 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 11537 made it impossible to use the same SSL_SESSION data structure in 11538 SSL2 clients in multiple threads. 11539 [Bodo Moeller] 11540 11541 *) The return value of RAND_load_file() no longer counts bytes obtained 11542 by stat(). RAND_load_file(..., -1) is new and uses the complete file 11543 to seed the PRNG (previously an explicit byte count was required). 11544 [Ulf Möller, Bodo Möller] 11545 11546 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 11547 used (char *) instead of (void *) and had casts all over the place. 11548 [Steve Henson] 11549 11550 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 11551 [Ulf Möller] 11552 11553 *) Retain source code compatibility for BN_prime_checks macro: 11554 BN_is_prime(..., BN_prime_checks, ...) now uses 11555 BN_prime_checks_for_size to determine the appropriate number of 11556 Rabin-Miller iterations. 11557 [Ulf Möller] 11558 11559 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 11560 DH_CHECK_P_NOT_SAFE_PRIME. 11561 (Check if this is true? OpenPGP calls them "strong".) 11562 [Ulf Möller] 11563 11564 *) Merge the functionality of "dh" and "gendh" programs into a new program 11565 "dhparam". The old programs are retained for now but will handle DH keys 11566 (instead of parameters) in future. 11567 [Steve Henson] 11568 11569 *) Make the ciphers, s_server and s_client programs check the return values 11570 when a new cipher list is set. 11571 [Steve Henson] 11572 11573 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 11574 ciphers. Before when the 56bit ciphers were enabled the sorting was 11575 wrong. 11576 11577 The syntax for the cipher sorting has been extended to support sorting by 11578 cipher-strength (using the strength_bits hard coded in the tables). 11579 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 11580 11581 Fix a bug in the cipher-command parser: when supplying a cipher command 11582 string with an "undefined" symbol (neither command nor alphanumeric 11583 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 11584 an error is flagged. 11585 11586 Due to the strength-sorting extension, the code of the 11587 ssl_create_cipher_list() function was completely rearranged. I hope that 11588 the readability was also increased :-) 11589 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 11590 11591 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 11592 for the first serial number and places 2 in the serial number file. This 11593 avoids problems when the root CA is created with serial number zero and 11594 the first user certificate has the same issuer name and serial number 11595 as the root CA. 11596 [Steve Henson] 11597 11598 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 11599 the new code. Add documentation for this stuff. 11600 [Steve Henson] 11601 11602 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 11603 X509_*() to X509at_*() on the grounds that they don't handle X509 11604 structures and behave in an analogous way to the X509v3 functions: 11605 they shouldn't be called directly but wrapper functions should be used 11606 instead. 11607 11608 So we also now have some wrapper functions that call the X509at functions 11609 when passed certificate requests. (TO DO: similar things can be done with 11610 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 11611 things. Some of these need some d2i or i2d and print functionality 11612 because they handle more complex structures.) 11613 [Steve Henson] 11614 11615 *) Add missing #ifndefs that caused missing symbols when building libssl 11616 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 11617 NO_RSA in ssl/s2*.c. 11618 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller] 11619 11620 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 11621 has a return value which indicates the quality of the random data 11622 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 11623 error queue. New function RAND_pseudo_bytes() generates output that is 11624 guaranteed to be unique but not unpredictable. RAND_add is like 11625 RAND_seed, but takes an extra argument for an entropy estimate 11626 (RAND_seed always assumes full entropy). 11627 [Ulf Möller] 11628 11629 *) Do more iterations of Rabin-Miller probable prime test (specifically, 11630 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 11631 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 11632 in crypto/bn/bn_prime.c for the complete table). This guarantees a 11633 false-positive rate of at most 2^-80 for random input. 11634 [Bodo Moeller] 11635 11636 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 11637 [Bodo Moeller] 11638 11639 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 11640 in the 0.9.5 release), this returns the chain 11641 from an X509_CTX structure with a dup of the stack and all 11642 the X509 reference counts upped: so the stack will exist 11643 after X509_CTX_cleanup() has been called. Modify pkcs12.c 11644 to use this. 11645 11646 Also make SSL_SESSION_print() print out the verify return 11647 code. 11648 [Steve Henson] 11649 11650 *) Add manpage for the pkcs12 command. Also change the default 11651 behaviour so MAC iteration counts are used unless the new 11652 -nomaciter option is used. This improves file security and 11653 only older versions of MSIE (4.0 for example) need it. 11654 [Steve Henson] 11655 11656 *) Honor the no-xxx Configure options when creating .DEF files. 11657 [Ulf Möller] 11658 11659 *) Add PKCS#10 attributes to field table: challengePassword, 11660 unstructuredName and unstructuredAddress. These are taken from 11661 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 11662 international characters are used. 11663 11664 More changes to X509_ATTRIBUTE code: allow the setting of types 11665 based on strings. Remove the 'loc' parameter when adding 11666 attributes because these will be a SET OF encoding which is sorted 11667 in ASN1 order. 11668 [Steve Henson] 11669 11670 *) Initial changes to the 'req' utility to allow request generation 11671 automation. This will allow an application to just generate a template 11672 file containing all the field values and have req construct the 11673 request. 11674 11675 Initial support for X509_ATTRIBUTE handling. Stacks of these are 11676 used all over the place including certificate requests and PKCS#7 11677 structures. They are currently handled manually where necessary with 11678 some primitive wrappers for PKCS#7. The new functions behave in a 11679 manner analogous to the X509 extension functions: they allow 11680 attributes to be looked up by NID and added. 11681 11682 Later something similar to the X509V3 code would be desirable to 11683 automatically handle the encoding, decoding and printing of the 11684 more complex types. The string types like challengePassword can 11685 be handled by the string table functions. 11686 11687 Also modified the multi byte string table handling. Now there is 11688 a 'global mask' which masks out certain types. The table itself 11689 can use the flag STABLE_NO_MASK to ignore the mask setting: this 11690 is useful when for example there is only one permissible type 11691 (as in countryName) and using the mask might result in no valid 11692 types at all. 11693 [Steve Henson] 11694 11695 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 11696 SSL_get_peer_finished to allow applications to obtain the latest 11697 Finished messages sent to the peer or expected from the peer, 11698 respectively. (SSL_get_peer_finished is usually the Finished message 11699 actually received from the peer, otherwise the protocol will be aborted.) 11700 11701 As the Finished message are message digests of the complete handshake 11702 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 11703 be used for external authentication procedures when the authentication 11704 provided by SSL/TLS is not desired or is not enough. 11705 [Bodo Moeller] 11706 11707 *) Enhanced support for Alpha Linux is added. Now ./config checks if 11708 the host supports BWX extension and if Compaq C is present on the 11709 $PATH. Just exploiting of the BWX extension results in 20-30% 11710 performance kick for some algorithms, e.g. DES and RC4 to mention 11711 a couple. Compaq C in turn generates ~20% faster code for MD5 and 11712 SHA1. 11713 [Andy Polyakov] 11714 11715 *) Add support for MS "fast SGC". This is arguably a violation of the 11716 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 11717 weak crypto and after checking the certificate is SGC a second one 11718 with strong crypto. MS SGC stops the first handshake after receiving 11719 the server certificate message and sends a second client hello. Since 11720 a server will typically do all the time consuming operations before 11721 expecting any further messages from the client (server key exchange 11722 is the most expensive) there is little difference between the two. 11723 11724 To get OpenSSL to support MS SGC we have to permit a second client 11725 hello message after we have sent server done. In addition we have to 11726 reset the MAC if we do get this second client hello. 11727 [Steve Henson] 11728 11729 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 11730 if a DER encoded private key is RSA or DSA traditional format. Changed 11731 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 11732 format DER encoded private key. Newer code should use PKCS#8 format which 11733 has the key type encoded in the ASN1 structure. Added DER private key 11734 support to pkcs8 application. 11735 [Steve Henson] 11736 11737 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 11738 ciphersuites has been selected (as required by the SSL 3/TLS 1 11739 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 11740 is set, we interpret this as a request to violate the specification 11741 (the worst that can happen is a handshake failure, and 'correct' 11742 behaviour would result in a handshake failure anyway). 11743 [Bodo Moeller] 11744 11745 *) In SSL_CTX_add_session, take into account that there might be multiple 11746 SSL_SESSION structures with the same session ID (e.g. when two threads 11747 concurrently obtain them from an external cache). 11748 The internal cache can handle only one SSL_SESSION with a given ID, 11749 so if there's a conflict, we now throw out the old one to achieve 11750 consistency. 11751 [Bodo Moeller] 11752 11753 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 11754 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 11755 some routines that use cipher OIDs: some ciphers do not have OIDs 11756 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 11757 example. 11758 [Steve Henson] 11759 11760 *) Simplify the trust setting structure and code. Now we just have 11761 two sequences of OIDs for trusted and rejected settings. These will 11762 typically have values the same as the extended key usage extension 11763 and any application specific purposes. 11764 11765 The trust checking code now has a default behaviour: it will just 11766 check for an object with the same NID as the passed id. Functions can 11767 be provided to override either the default behaviour or the behaviour 11768 for a given id. SSL client, server and email already have functions 11769 in place for compatibility: they check the NID and also return "trusted" 11770 if the certificate is self signed. 11771 [Steve Henson] 11772 11773 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 11774 traditional format into an EVP_PKEY structure. 11775 [Steve Henson] 11776 11777 *) Add a password callback function PEM_cb() which either prompts for 11778 a password if usr_data is NULL or otherwise assumes it is a null 11779 terminated password. Allow passwords to be passed on command line 11780 environment or config files in a few more utilities. 11781 [Steve Henson] 11782 11783 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 11784 keys. Add some short names for PKCS#8 PBE algorithms and allow them 11785 to be specified on the command line for the pkcs8 and pkcs12 utilities. 11786 Update documentation. 11787 [Steve Henson] 11788 11789 *) Support for ASN1 "NULL" type. This could be handled before by using 11790 ASN1_TYPE but there wasn't any function that would try to read a NULL 11791 and produce an error if it couldn't. For compatibility we also have 11792 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 11793 don't allocate anything because they don't need to. 11794 [Steve Henson] 11795 11796 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 11797 for details. 11798 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 11799 11800 *) Rebuild of the memory allocation routines used by OpenSSL code and 11801 possibly others as well. The purpose is to make an interface that 11802 provide hooks so anyone can build a separate set of allocation and 11803 deallocation routines to be used by OpenSSL, for example memory 11804 pool implementations, or something else, which was previously hard 11805 since Malloc(), Realloc() and Free() were defined as macros having 11806 the values malloc, realloc and free, respectively (except for Win32 11807 compilations). The same is provided for memory debugging code. 11808 OpenSSL already comes with functionality to find memory leaks, but 11809 this gives people a chance to debug other memory problems. 11810 11811 With these changes, a new set of functions and macros have appeared: 11812 11813 CRYPTO_set_mem_debug_functions() [F] 11814 CRYPTO_get_mem_debug_functions() [F] 11815 CRYPTO_dbg_set_options() [F] 11816 CRYPTO_dbg_get_options() [F] 11817 CRYPTO_malloc_debug_init() [M] 11818 11819 The memory debug functions are NULL by default, unless the library 11820 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 11821 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 11822 gives the standard debugging functions that come with OpenSSL) or 11823 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 11824 provided by the library user) must be used. When the standard 11825 debugging functions are used, CRYPTO_dbg_set_options can be used to 11826 request additional information: 11827 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 11828 the CRYPTO_MDEBUG_xxx macro when compiling the library. 11829 11830 Also, things like CRYPTO_set_mem_functions will always give the 11831 expected result (the new set of functions is used for allocation 11832 and deallocation) at all times, regardless of platform and compiler 11833 options. 11834 11835 To finish it up, some functions that were never use in any other 11836 way than through macros have a new API and new semantic: 11837 11838 CRYPTO_dbg_malloc() 11839 CRYPTO_dbg_realloc() 11840 CRYPTO_dbg_free() 11841 11842 All macros of value have retained their old syntax. 11843 [Richard Levitte and Bodo Moeller] 11844 11845 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 11846 ordering of SMIMECapabilities wasn't in "strength order" and there 11847 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 11848 algorithm. 11849 [Steve Henson] 11850 11851 *) Some ASN1 types with illegal zero length encoding (INTEGER, 11852 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 11853 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 11854 11855 *) Merge in my S/MIME library for OpenSSL. This provides a simple 11856 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 11857 functionality to handle multipart/signed properly) and a utility 11858 called 'smime' to call all this stuff. This is based on code I 11859 originally wrote for Celo who have kindly allowed it to be 11860 included in OpenSSL. 11861 [Steve Henson] 11862 11863 *) Add variants des_set_key_checked and des_set_key_unchecked of 11864 des_set_key (aka des_key_sched). Global variable des_check_key 11865 decides which of these is called by des_set_key; this way 11866 des_check_key behaves as it always did, but applications and 11867 the library itself, which was buggy for des_check_key == 1, 11868 have a cleaner way to pick the version they need. 11869 [Bodo Moeller] 11870 11871 *) New function PKCS12_newpass() which changes the password of a 11872 PKCS12 structure. 11873 [Steve Henson] 11874 11875 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 11876 dynamic mix. In both cases the ids can be used as an index into the 11877 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 11878 functions so they accept a list of the field values and the 11879 application doesn't need to directly manipulate the X509_TRUST 11880 structure. 11881 [Steve Henson] 11882 11883 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 11884 need initialising. 11885 [Steve Henson] 11886 11887 *) Modify the way the V3 extension code looks up extensions. This now 11888 works in a similar way to the object code: we have some "standard" 11889 extensions in a static table which is searched with OBJ_bsearch() 11890 and the application can add dynamic ones if needed. The file 11891 crypto/x509v3/ext_dat.h now has the info: this file needs to be 11892 updated whenever a new extension is added to the core code and kept 11893 in ext_nid order. There is a simple program 'tabtest.c' which checks 11894 this. New extensions are not added too often so this file can readily 11895 be maintained manually. 11896 11897 There are two big advantages in doing things this way. The extensions 11898 can be looked up immediately and no longer need to be "added" using 11899 X509V3_add_standard_extensions(): this function now does nothing. 11900 [Side note: I get *lots* of email saying the extension code doesn't 11901 work because people forget to call this function] 11902 Also no dynamic allocation is done unless new extensions are added: 11903 so if we don't add custom extensions there is no need to call 11904 X509V3_EXT_cleanup(). 11905 [Steve Henson] 11906 11907 *) Modify enc utility's salting as follows: make salting the default. Add a 11908 magic header, so unsalted files fail gracefully instead of just decrypting 11909 to garbage. This is because not salting is a big security hole, so people 11910 should be discouraged from doing it. 11911 [Ben Laurie] 11912 11913 *) Fixes and enhancements to the 'x509' utility. It allowed a message 11914 digest to be passed on the command line but it only used this 11915 parameter when signing a certificate. Modified so all relevant 11916 operations are affected by the digest parameter including the 11917 -fingerprint and -x509toreq options. Also -x509toreq choked if a 11918 DSA key was used because it didn't fix the digest. 11919 [Steve Henson] 11920 11921 *) Initial certificate chain verify code. Currently tests the untrusted 11922 certificates for consistency with the verify purpose (which is set 11923 when the X509_STORE_CTX structure is set up) and checks the pathlength. 11924 11925 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 11926 this is because it will reject chains with invalid extensions whereas 11927 every previous version of OpenSSL and SSLeay made no checks at all. 11928 11929 Trust code: checks the root CA for the relevant trust settings. Trust 11930 settings have an initial value consistent with the verify purpose: e.g. 11931 if the verify purpose is for SSL client use it expects the CA to be 11932 trusted for SSL client use. However the default value can be changed to 11933 permit custom trust settings: one example of this would be to only trust 11934 certificates from a specific "secure" set of CAs. 11935 11936 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 11937 which should be used for version portability: especially since the 11938 verify structure is likely to change more often now. 11939 11940 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 11941 to set them. If not set then assume SSL clients will verify SSL servers 11942 and vice versa. 11943 11944 Two new options to the verify program: -untrusted allows a set of 11945 untrusted certificates to be passed in and -purpose which sets the 11946 intended purpose of the certificate. If a purpose is set then the 11947 new chain verify code is used to check extension consistency. 11948 [Steve Henson] 11949 11950 *) Support for the authority information access extension. 11951 [Steve Henson] 11952 11953 *) Modify RSA and DSA PEM read routines to transparently handle 11954 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 11955 public keys in a format compatible with certificate 11956 SubjectPublicKeyInfo structures. Unfortunately there were already 11957 functions called *_PublicKey_* which used various odd formats so 11958 these are retained for compatibility: however the DSA variants were 11959 never in a public release so they have been deleted. Changed dsa/rsa 11960 utilities to handle the new format: note no releases ever handled public 11961 keys so we should be OK. 11962 11963 The primary motivation for this change is to avoid the same fiasco 11964 that dogs private keys: there are several incompatible private key 11965 formats some of which are standard and some OpenSSL specific and 11966 require various evil hacks to allow partial transparent handling and 11967 even then it doesn't work with DER formats. Given the option anything 11968 other than PKCS#8 should be dumped: but the other formats have to 11969 stay in the name of compatibility. 11970 11971 With public keys and the benefit of hindsight one standard format 11972 is used which works with EVP_PKEY, RSA or DSA structures: though 11973 it clearly returns an error if you try to read the wrong kind of key. 11974 11975 Added a -pubkey option to the 'x509' utility to output the public key. 11976 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 11977 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 11978 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 11979 that do the same as the EVP_PKEY_assign_*() except they up the 11980 reference count of the added key (they don't "swallow" the 11981 supplied key). 11982 [Steve Henson] 11983 11984 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 11985 CRLs would fail if the file contained no certificates or no CRLs: 11986 added a new function to read in both types and return the number 11987 read: this means that if none are read it will be an error. The 11988 DER versions of the certificate and CRL reader would always fail 11989 because it isn't possible to mix certificates and CRLs in DER format 11990 without choking one or the other routine. Changed this to just read 11991 a certificate: this is the best we can do. Also modified the code 11992 in apps/verify.c to take notice of return codes: it was previously 11993 attempting to read in certificates from NULL pointers and ignoring 11994 any errors: this is one reason why the cert and CRL reader seemed 11995 to work. It doesn't check return codes from the default certificate 11996 routines: these may well fail if the certificates aren't installed. 11997 [Steve Henson] 11998 11999 *) Code to support otherName option in GeneralName. 12000 [Steve Henson] 12001 12002 *) First update to verify code. Change the verify utility 12003 so it warns if it is passed a self signed certificate: 12004 for consistency with the normal behaviour. X509_verify 12005 has been modified to it will now verify a self signed 12006 certificate if *exactly* the same certificate appears 12007 in the store: it was previously impossible to trust a 12008 single self signed certificate. This means that: 12009 openssl verify ss.pem 12010 now gives a warning about a self signed certificate but 12011 openssl verify -CAfile ss.pem ss.pem 12012 is OK. 12013 [Steve Henson] 12014 12015 *) For servers, store verify_result in SSL_SESSION data structure 12016 (and add it to external session representation). 12017 This is needed when client certificate verifications fails, 12018 but an application-provided verification callback (set by 12019 SSL_CTX_set_cert_verify_callback) allows accepting the session 12020 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 12021 but returns 1): When the session is reused, we have to set 12022 ssl->verify_result to the appropriate error code to avoid 12023 security holes. 12024 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 12025 12026 *) Fix a bug in the new PKCS#7 code: it didn't consider the 12027 case in PKCS7_dataInit() where the signed PKCS7 structure 12028 didn't contain any existing data because it was being created. 12029 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 12030 12031 *) Add a salt to the key derivation routines in enc.c. This 12032 forms the first 8 bytes of the encrypted file. Also add a 12033 -S option to allow a salt to be input on the command line. 12034 [Steve Henson] 12035 12036 *) New function X509_cmp(). Oddly enough there wasn't a function 12037 to compare two certificates. We do this by working out the SHA1 12038 hash and comparing that. X509_cmp() will be needed by the trust 12039 code. 12040 [Steve Henson] 12041 12042 *) SSL_get1_session() is like SSL_get_session(), but increments 12043 the reference count in the SSL_SESSION returned. 12044 [Geoff Thorpe <geoff@eu.c2.net>] 12045 12046 *) Fix for 'req': it was adding a null to request attributes. 12047 Also change the X509_LOOKUP and X509_INFO code to handle 12048 certificate auxiliary information. 12049 [Steve Henson] 12050 12051 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 12052 the 'enc' command. 12053 [Steve Henson] 12054 12055 *) Add the possibility to add extra information to the memory leak 12056 detecting output, to form tracebacks, showing from where each 12057 allocation was originated: CRYPTO_push_info("constant string") adds 12058 the string plus current file name and line number to a per-thread 12059 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 12060 is like calling CYRPTO_pop_info() until the stack is empty. 12061 Also updated memory leak detection code to be multi-thread-safe. 12062 [Richard Levitte] 12063 12064 *) Add options -text and -noout to pkcs7 utility and delete the 12065 encryption options which never did anything. Update docs. 12066 [Steve Henson] 12067 12068 *) Add options to some of the utilities to allow the pass phrase 12069 to be included on either the command line (not recommended on 12070 OSes like Unix) or read from the environment. Update the 12071 manpages and fix a few bugs. 12072 [Steve Henson] 12073 12074 *) Add a few manpages for some of the openssl commands. 12075 [Steve Henson] 12076 12077 *) Fix the -revoke option in ca. It was freeing up memory twice, 12078 leaking and not finding already revoked certificates. 12079 [Steve Henson] 12080 12081 *) Extensive changes to support certificate auxiliary information. 12082 This involves the use of X509_CERT_AUX structure and X509_AUX 12083 functions. An X509_AUX function such as PEM_read_X509_AUX() 12084 can still read in a certificate file in the usual way but it 12085 will also read in any additional "auxiliary information". By 12086 doing things this way a fair degree of compatibility can be 12087 retained: existing certificates can have this information added 12088 using the new 'x509' options. 12089 12090 Current auxiliary information includes an "alias" and some trust 12091 settings. The trust settings will ultimately be used in enhanced 12092 certificate chain verification routines: currently a certificate 12093 can only be trusted if it is self signed and then it is trusted 12094 for all purposes. 12095 [Steve Henson] 12096 12097 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 12098 The problem was that one of the replacement routines had not been working 12099 since SSLeay releases. For now the offending routine has been replaced 12100 with non-optimised assembler. Even so, this now gives around 95% 12101 performance improvement for 1024 bit RSA signs. 12102 [Mark Cox] 12103 12104 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 12105 handling. Most clients have the effective key size in bits equal to 12106 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 12107 A few however don't do this and instead use the size of the decrypted key 12108 to determine the RC2 key length and the AlgorithmIdentifier to determine 12109 the effective key length. In this case the effective key length can still 12110 be 40 bits but the key length can be 168 bits for example. This is fixed 12111 by manually forcing an RC2 key into the EVP_PKEY structure because the 12112 EVP code can't currently handle unusual RC2 key sizes: it always assumes 12113 the key length and effective key length are equal. 12114 [Steve Henson] 12115 12116 *) Add a bunch of functions that should simplify the creation of 12117 X509_NAME structures. Now you should be able to do: 12118 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 12119 and have it automatically work out the correct field type and fill in 12120 the structures. The more adventurous can try: 12121 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 12122 and it will (hopefully) work out the correct multibyte encoding. 12123 [Steve Henson] 12124 12125 *) Change the 'req' utility to use the new field handling and multibyte 12126 copy routines. Before the DN field creation was handled in an ad hoc 12127 way in req, ca, and x509 which was rather broken and didn't support 12128 BMPStrings or UTF8Strings. Since some software doesn't implement 12129 BMPStrings or UTF8Strings yet, they can be enabled using the config file 12130 using the dirstring_type option. See the new comment in the default 12131 openssl.cnf for more info. 12132 [Steve Henson] 12133 12134 *) Make crypto/rand/md_rand.c more robust: 12135 - Assure unique random numbers after fork(). 12136 - Make sure that concurrent threads access the global counter and 12137 md serializably so that we never lose entropy in them 12138 or use exactly the same state in multiple threads. 12139 Access to the large state is not always serializable because 12140 the additional locking could be a performance killer, and 12141 md should be large enough anyway. 12142 [Bodo Moeller] 12143 12144 *) New file apps/app_rand.c with commonly needed functionality 12145 for handling the random seed file. 12146 12147 Use the random seed file in some applications that previously did not: 12148 ca, 12149 dsaparam -genkey (which also ignored its '-rand' option), 12150 s_client, 12151 s_server, 12152 x509 (when signing). 12153 Except on systems with /dev/urandom, it is crucial to have a random 12154 seed file at least for key creation, DSA signing, and for DH exchanges; 12155 for RSA signatures we could do without one. 12156 12157 gendh and gendsa (unlike genrsa) used to read only the first byte 12158 of each file listed in the '-rand' option. The function as previously 12159 found in genrsa is now in app_rand.c and is used by all programs 12160 that support '-rand'. 12161 [Bodo Moeller] 12162 12163 *) In RAND_write_file, use mode 0600 for creating files; 12164 don't just chmod when it may be too late. 12165 [Bodo Moeller] 12166 12167 *) Report an error from X509_STORE_load_locations 12168 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 12169 [Bill Perry] 12170 12171 *) New function ASN1_mbstring_copy() this copies a string in either 12172 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 12173 into an ASN1_STRING type. A mask of permissible types is passed 12174 and it chooses the "minimal" type to use or an error if not type 12175 is suitable. 12176 [Steve Henson] 12177 12178 *) Add function equivalents to the various macros in asn1.h. The old 12179 macros are retained with an M_ prefix. Code inside the library can 12180 use the M_ macros. External code (including the openssl utility) 12181 should *NOT* in order to be "shared library friendly". 12182 [Steve Henson] 12183 12184 *) Add various functions that can check a certificate's extensions 12185 to see if it usable for various purposes such as SSL client, 12186 server or S/MIME and CAs of these types. This is currently 12187 VERY EXPERIMENTAL but will ultimately be used for certificate chain 12188 verification. Also added a -purpose flag to x509 utility to 12189 print out all the purposes. 12190 [Steve Henson] 12191 12192 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 12193 functions. 12194 [Steve Henson] 12195 12196 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 12197 for, obtain and decode and extension and obtain its critical flag. 12198 This allows all the necessary extension code to be handled in a 12199 single function call. 12200 [Steve Henson] 12201 12202 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 12203 platforms. See crypto/rc4/rc4_enc.c for further details. 12204 [Andy Polyakov] 12205 12206 *) New -noout option to asn1parse. This causes no output to be produced 12207 its main use is when combined with -strparse and -out to extract data 12208 from a file (which may not be in ASN.1 format). 12209 [Steve Henson] 12210 12211 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 12212 when producing the local key id. 12213 [Richard Levitte <levitte@stacken.kth.se>] 12214 12215 *) New option -dhparam in s_server. This allows a DH parameter file to be 12216 stated explicitly. If it is not stated then it tries the first server 12217 certificate file. The previous behaviour hard coded the filename 12218 "server.pem". 12219 [Steve Henson] 12220 12221 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 12222 a public key to be input or output. For example: 12223 openssl rsa -in key.pem -pubout -out pubkey.pem 12224 Also added necessary DSA public key functions to handle this. 12225 [Steve Henson] 12226 12227 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 12228 in the message. This was handled by allowing 12229 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 12230 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 12231 12232 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 12233 to the end of the strings whereas this didn't. This would cause problems 12234 if strings read with d2i_ASN1_bytes() were later modified. 12235 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 12236 12237 *) Fix for base64 decode bug. When a base64 bio reads only one line of 12238 data and it contains EOF it will end up returning an error. This is 12239 caused by input 46 bytes long. The cause is due to the way base64 12240 BIOs find the start of base64 encoded data. They do this by trying a 12241 trial decode on each line until they find one that works. When they 12242 do a flag is set and it starts again knowing it can pass all the 12243 data directly through the decoder. Unfortunately it doesn't reset 12244 the context it uses. This means that if EOF is reached an attempt 12245 is made to pass two EOFs through the context and this causes the 12246 resulting error. This can also cause other problems as well. As is 12247 usual with these problems it takes *ages* to find and the fix is 12248 trivial: move one line. 12249 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 12250 12251 *) Ugly workaround to get s_client and s_server working under Windows. The 12252 old code wouldn't work because it needed to select() on sockets and the 12253 tty (for keypresses and to see if data could be written). Win32 only 12254 supports select() on sockets so we select() with a 1s timeout on the 12255 sockets and then see if any characters are waiting to be read, if none 12256 are present then we retry, we also assume we can always write data to 12257 the tty. This isn't nice because the code then blocks until we've 12258 received a complete line of data and it is effectively polling the 12259 keyboard at 1s intervals: however it's quite a bit better than not 12260 working at all :-) A dedicated Windows application might handle this 12261 with an event loop for example. 12262 [Steve Henson] 12263 12264 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 12265 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 12266 will be called when RSA_sign() and RSA_verify() are used. This is useful 12267 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 12268 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 12269 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 12270 This necessitated the support of an extra signature type NID_md5_sha1 12271 for SSL signatures and modifications to the SSL library to use it instead 12272 of calling RSA_public_decrypt() and RSA_private_encrypt(). 12273 [Steve Henson] 12274 12275 *) Add new -verify -CAfile and -CApath options to the crl program, these 12276 will lookup a CRL issuers certificate and verify the signature in a 12277 similar way to the verify program. Tidy up the crl program so it 12278 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 12279 less strict. It will now permit CRL extensions even if it is not 12280 a V2 CRL: this will allow it to tolerate some broken CRLs. 12281 [Steve Henson] 12282 12283 *) Initialize all non-automatic variables each time one of the openssl 12284 sub-programs is started (this is necessary as they may be started 12285 multiple times from the "OpenSSL>" prompt). 12286 [Lennart Bang, Bodo Moeller] 12287 12288 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 12289 removing all other RSA functionality (this is what NO_RSA does). This 12290 is so (for example) those in the US can disable those operations covered 12291 by the RSA patent while allowing storage and parsing of RSA keys and RSA 12292 key generation. 12293 [Steve Henson] 12294 12295 *) Non-copying interface to BIO pairs. 12296 (still largely untested) 12297 [Bodo Moeller] 12298 12299 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 12300 ASCII string. This was handled independently in various places before. 12301 [Steve Henson] 12302 12303 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 12304 UTF8 strings a character at a time. 12305 [Steve Henson] 12306 12307 *) Use client_version from client hello to select the protocol 12308 (s23_srvr.c) and for RSA client key exchange verification 12309 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 12310 [Bodo Moeller] 12311 12312 *) Add various utility functions to handle SPKACs, these were previously 12313 handled by poking round in the structure internals. Added new function 12314 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 12315 print, verify and generate SPKACs. Based on an original idea from 12316 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 12317 [Steve Henson] 12318 12319 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 12320 [Andy Polyakov] 12321 12322 *) Allow the config file extension section to be overwritten on the 12323 command line. Based on an original idea from Massimiliano Pala 12324 <madwolf@comune.modena.it>. The new option is called -extensions 12325 and can be applied to ca, req and x509. Also -reqexts to override 12326 the request extensions in req and -crlexts to override the crl extensions 12327 in ca. 12328 [Steve Henson] 12329 12330 *) Add new feature to the SPKAC handling in ca. Now you can include 12331 the same field multiple times by preceding it by "XXXX." for example: 12332 1.OU="Unit name 1" 12333 2.OU="Unit name 2" 12334 this is the same syntax as used in the req config file. 12335 [Steve Henson] 12336 12337 *) Allow certificate extensions to be added to certificate requests. These 12338 are specified in a 'req_extensions' option of the req section of the 12339 config file. They can be printed out with the -text option to req but 12340 are otherwise ignored at present. 12341 [Steve Henson] 12342 12343 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 12344 data read consists of only the final block it would not decrypted because 12345 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 12346 A misplaced 'break' also meant the decrypted final block might not be 12347 copied until the next read. 12348 [Steve Henson] 12349 12350 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 12351 a few extra parameters to the DH structure: these will be useful if 12352 for example we want the value of 'q' or implement X9.42 DH. 12353 [Steve Henson] 12354 12355 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 12356 provides hooks that allow the default DSA functions or functions on a 12357 "per key" basis to be replaced. This allows hardware acceleration and 12358 hardware key storage to be handled without major modification to the 12359 library. Also added low level modexp hooks and CRYPTO_EX structure and 12360 associated functions. 12361 [Steve Henson] 12362 12363 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 12364 as "read only": it can't be written to and the buffer it points to will 12365 not be freed. Reading from a read only BIO is much more efficient than 12366 a normal memory BIO. This was added because there are several times when 12367 an area of memory needs to be read from a BIO. The previous method was 12368 to create a memory BIO and write the data to it, this results in two 12369 copies of the data and an O(n^2) reading algorithm. There is a new 12370 function BIO_new_mem_buf() which creates a read only memory BIO from 12371 an area of memory. Also modified the PKCS#7 routines to use read only 12372 memory BIOs. 12373 [Steve Henson] 12374 12375 *) Bugfix: ssl23_get_client_hello did not work properly when called in 12376 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 12377 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 12378 but a retry condition occurred while trying to read the rest. 12379 [Bodo Moeller] 12380 12381 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 12382 NID_pkcs7_encrypted by default: this was wrong since this should almost 12383 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 12384 the encrypted data type: this is a more sensible place to put it and it 12385 allows the PKCS#12 code to be tidied up that duplicated this 12386 functionality. 12387 [Steve Henson] 12388 12389 *) Changed obj_dat.pl script so it takes its input and output files on 12390 the command line. This should avoid shell escape redirection problems 12391 under Win32. 12392 [Steve Henson] 12393 12394 *) Initial support for certificate extension requests, these are included 12395 in things like Xenroll certificate requests. Included functions to allow 12396 extensions to be obtained and added. 12397 [Steve Henson] 12398 12399 *) -crlf option to s_client and s_server for sending newlines as 12400 CRLF (as required by many protocols). 12401 [Bodo Moeller] 12402 12403 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 12404 12405 *) Install libRSAglue.a when OpenSSL is built with RSAref. 12406 [Ralf S. Engelschall] 12407 12408 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 12409 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 12410 12411 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 12412 program. 12413 [Steve Henson] 12414 12415 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 12416 DH parameters/keys (q is lost during that conversion, but the resulting 12417 DH parameters contain its length). 12418 12419 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 12420 much faster than DH_generate_parameters (which creates parameters 12421 where p = 2*q + 1), and also the smaller q makes DH computations 12422 much more efficient (160-bit exponentiation instead of 1024-bit 12423 exponentiation); so this provides a convenient way to support DHE 12424 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 12425 utter importance to use 12426 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 12427 or 12428 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 12429 when such DH parameters are used, because otherwise small subgroup 12430 attacks may become possible! 12431 [Bodo Moeller] 12432 12433 *) Avoid memory leak in i2d_DHparams. 12434 [Bodo Moeller] 12435 12436 *) Allow the -k option to be used more than once in the enc program: 12437 this allows the same encrypted message to be read by multiple recipients. 12438 [Steve Henson] 12439 12440 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 12441 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 12442 it will always use the numerical form of the OID, even if it has a short 12443 or long name. 12444 [Steve Henson] 12445 12446 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 12447 method only got called if p,q,dmp1,dmq1,iqmp components were present, 12448 otherwise bn_mod_exp was called. In the case of hardware keys for example 12449 no private key components need be present and it might store extra data 12450 in the RSA structure, which cannot be accessed from bn_mod_exp. 12451 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 12452 private key operations. 12453 [Steve Henson] 12454 12455 *) Added support for SPARC Linux. 12456 [Andy Polyakov] 12457 12458 *) pem_password_cb function type incompatibly changed from 12459 typedef int pem_password_cb(char *buf, int size, int rwflag); 12460 to 12461 ....(char *buf, int size, int rwflag, void *userdata); 12462 so that applications can pass data to their callbacks: 12463 The PEM[_ASN1]_{read,write}... functions and macros now take an 12464 additional void * argument, which is just handed through whenever 12465 the password callback is called. 12466 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 12467 12468 New function SSL_CTX_set_default_passwd_cb_userdata. 12469 12470 Compatibility note: As many C implementations push function arguments 12471 onto the stack in reverse order, the new library version is likely to 12472 interoperate with programs that have been compiled with the old 12473 pem_password_cb definition (PEM_whatever takes some data that 12474 happens to be on the stack as its last argument, and the callback 12475 just ignores this garbage); but there is no guarantee whatsoever that 12476 this will work. 12477 12478 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 12479 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 12480 problems not only on Windows, but also on some Unix platforms. 12481 To avoid problematic command lines, these definitions are now in an 12482 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 12483 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 12484 [Bodo Moeller] 12485 12486 *) MIPS III/IV assembler module is reimplemented. 12487 [Andy Polyakov] 12488 12489 *) More DES library cleanups: remove references to srand/rand and 12490 delete an unused file. 12491 [Ulf Möller] 12492 12493 *) Add support for the free Netwide assembler (NASM) under Win32, 12494 since not many people have MASM (ml) and it can be hard to obtain. 12495 This is currently experimental but it seems to work OK and pass all 12496 the tests. Check out INSTALL.W32 for info. 12497 [Steve Henson] 12498 12499 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 12500 without temporary keys kept an extra copy of the server key, 12501 and connections with temporary keys did not free everything in case 12502 of an error. 12503 [Bodo Moeller] 12504 12505 *) New function RSA_check_key and new openssl rsa option -check 12506 for verifying the consistency of RSA keys. 12507 [Ulf Moeller, Bodo Moeller] 12508 12509 *) Various changes to make Win32 compile work: 12510 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 12511 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 12512 comparison" warnings. 12513 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 12514 [Steve Henson] 12515 12516 *) Add a debugging option to PKCS#5 v2 key generation function: when 12517 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 12518 derived keys are printed to stderr. 12519 [Steve Henson] 12520 12521 *) Copy the flags in ASN1_STRING_dup(). 12522 [Roman E. Pavlov <pre@mo.msk.ru>] 12523 12524 *) The x509 application mishandled signing requests containing DSA 12525 keys when the signing key was also DSA and the parameters didn't match. 12526 12527 It was supposed to omit the parameters when they matched the signing key: 12528 the verifying software was then supposed to automatically use the CA's 12529 parameters if they were absent from the end user certificate. 12530 12531 Omitting parameters is no longer recommended. The test was also 12532 the wrong way round! This was probably due to unusual behaviour in 12533 EVP_cmp_parameters() which returns 1 if the parameters match. 12534 This meant that parameters were omitted when they *didn't* match and 12535 the certificate was useless. Certificates signed with 'ca' didn't have 12536 this bug. 12537 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 12538 12539 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 12540 The interface is as follows: 12541 Applications can use 12542 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 12543 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 12544 "off" is now the default. 12545 The library internally uses 12546 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 12547 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 12548 to disable memory-checking temporarily. 12549 12550 Some inconsistent states that previously were possible (and were 12551 even the default) are now avoided. 12552 12553 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 12554 with each memory chunk allocated; this is occasionally more helpful 12555 than just having a counter. 12556 12557 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 12558 12559 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 12560 extensions. 12561 [Bodo Moeller] 12562 12563 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 12564 which largely parallels "options", but is for changing API behaviour, 12565 whereas "options" are about protocol behaviour. 12566 Initial "mode" flags are: 12567 12568 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 12569 a single record has been written. 12570 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 12571 retries use the same buffer location. 12572 (But all of the contents must be 12573 copied!) 12574 [Bodo Moeller] 12575 12576 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 12577 worked. 12578 12579 *) Fix problems with no-hmac etc. 12580 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>] 12581 12582 *) New functions RSA_get_default_method(), RSA_set_method() and 12583 RSA_get_method(). These allows replacement of RSA_METHODs without having 12584 to mess around with the internals of an RSA structure. 12585 [Steve Henson] 12586 12587 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 12588 Also really enable memory leak checks in openssl.c and in some 12589 test programs. 12590 [Chad C. Mulligan, Bodo Moeller] 12591 12592 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 12593 up the length of negative integers. This has now been simplified to just 12594 store the length when it is first determined and use it later, rather 12595 than trying to keep track of where data is copied and updating it to 12596 point to the end. 12597 [Steve Henson, reported by Brien Wheeler 12598 <bwheeler@authentica-security.com>] 12599 12600 *) Add a new function PKCS7_signatureVerify. This allows the verification 12601 of a PKCS#7 signature but with the signing certificate passed to the 12602 function itself. This contrasts with PKCS7_dataVerify which assumes the 12603 certificate is present in the PKCS#7 structure. This isn't always the 12604 case: certificates can be omitted from a PKCS#7 structure and be 12605 distributed by "out of band" means (such as a certificate database). 12606 [Steve Henson] 12607 12608 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 12609 function prototypes in pem.h, also change util/mkdef.pl to add the 12610 necessary function names. 12611 [Steve Henson] 12612 12613 *) mk1mf.pl (used by Windows builds) did not properly read the 12614 options set by Configure in the top level Makefile, and Configure 12615 was not even able to write more than one option correctly. 12616 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 12617 [Bodo Moeller] 12618 12619 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 12620 file to be loaded from a BIO or FILE pointer. The BIO version will 12621 for example allow memory BIOs to contain config info. 12622 [Steve Henson] 12623 12624 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 12625 Whoever hopes to achieve shared-library compatibility across versions 12626 must use this, not the compile-time macro. 12627 (Exercise 0.9.4: Which is the minimum library version required by 12628 such programs?) 12629 Note: All this applies only to multi-threaded programs, others don't 12630 need locks. 12631 [Bodo Moeller] 12632 12633 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 12634 through a BIO pair triggered the default case, i.e. 12635 SSLerr(...,SSL_R_UNKNOWN_STATE). 12636 [Bodo Moeller] 12637 12638 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 12639 can use the SSL library even if none of the specific BIOs is 12640 appropriate. 12641 [Bodo Moeller] 12642 12643 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 12644 for the encoded length. 12645 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 12646 12647 *) Add initial documentation of the X509V3 functions. 12648 [Steve Henson] 12649 12650 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 12651 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 12652 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 12653 secure PKCS#8 private key format with a high iteration count. 12654 [Steve Henson] 12655 12656 *) Fix determination of Perl interpreter: A perl or perl5 12657 _directory_ in $PATH was also accepted as the interpreter. 12658 [Ralf S. Engelschall] 12659 12660 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 12661 wrong with it but it was very old and did things like calling 12662 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 12663 unusual formatting. 12664 [Steve Henson] 12665 12666 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 12667 to use the new extension code. 12668 [Steve Henson] 12669 12670 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 12671 with macros. This should make it easier to change their form, add extra 12672 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 12673 constant. 12674 [Steve Henson] 12675 12676 *) Add to configuration table a new entry that can specify an alternative 12677 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 12678 according to Mark Crispin <MRC@Panda.COM>. 12679 [Bodo Moeller] 12680 12681#if 0 12682 *) DES CBC did not update the IV. Weird. 12683 [Ben Laurie] 12684#else 12685 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 12686 Changing the behaviour of the former might break existing programs -- 12687 where IV updating is needed, des_ncbc_encrypt can be used. 12688#endif 12689 12690 *) When bntest is run from "make test" it drives bc to check its 12691 calculations, as well as internally checking them. If an internal check 12692 fails, it needs to cause bc to give a non-zero result or make test carries 12693 on without noticing the failure. Fixed. 12694 [Ben Laurie] 12695 12696 *) DES library cleanups. 12697 [Ulf Möller] 12698 12699 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 12700 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 12701 ciphers. NOTE: although the key derivation function has been verified 12702 against some published test vectors it has not been extensively tested 12703 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 12704 of v2.0. 12705 [Steve Henson] 12706 12707 *) Instead of "mkdir -p", which is not fully portable, use new 12708 Perl script "util/mkdir-p.pl". 12709 [Bodo Moeller] 12710 12711 *) Rewrite the way password based encryption (PBE) is handled. It used to 12712 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 12713 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 12714 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 12715 the 'parameter' field of the AlgorithmIdentifier is passed to the 12716 underlying key generation function so it must do its own ASN1 parsing. 12717 This has also changed the EVP_PBE_CipherInit() function which now has a 12718 'parameter' argument instead of literal salt and iteration count values 12719 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 12720 [Steve Henson] 12721 12722 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 12723 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 12724 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 12725 KEY" because this clashed with PKCS#8 unencrypted string. Since this 12726 value was just used as a "magic string" and not used directly its 12727 value doesn't matter. 12728 [Steve Henson] 12729 12730 *) Introduce some semblance of const correctness to BN. Shame C doesn't 12731 support mutable. 12732 [Ben Laurie] 12733 12734 *) "linux-sparc64" configuration (ultrapenguin). 12735 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 12736 "linux-sparc" configuration. 12737 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 12738 12739 *) config now generates no-xxx options for missing ciphers. 12740 [Ulf Möller] 12741 12742 *) Support the EBCDIC character set (work in progress). 12743 File ebcdic.c not yet included because it has a different license. 12744 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 12745 12746 *) Support BS2000/OSD-POSIX. 12747 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 12748 12749 *) Make callbacks for key generation use void * instead of char *. 12750 [Ben Laurie] 12751 12752 *) Make S/MIME samples compile (not yet tested). 12753 [Ben Laurie] 12754 12755 *) Additional typesafe stacks. 12756 [Ben Laurie] 12757 12758 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 12759 [Bodo Moeller] 12760 12761 12762 Changes between 0.9.3 and 0.9.3a [29 May 1999] 12763 12764 *) New configuration variant "sco5-gcc". 12765 12766 *) Updated some demos. 12767 [Sean O Riordain, Wade Scholine] 12768 12769 *) Add missing BIO_free at exit of pkcs12 application. 12770 [Wu Zhigang] 12771 12772 *) Fix memory leak in conf.c. 12773 [Steve Henson] 12774 12775 *) Updates for Win32 to assembler version of MD5. 12776 [Steve Henson] 12777 12778 *) Set #! path to perl in apps/der_chop to where we found it 12779 instead of using a fixed path. 12780 [Bodo Moeller] 12781 12782 *) SHA library changes for irix64-mips4-cc. 12783 [Andy Polyakov] 12784 12785 *) Improvements for VMS support. 12786 [Richard Levitte] 12787 12788 12789 Changes between 0.9.2b and 0.9.3 [24 May 1999] 12790 12791 *) Bignum library bug fix. IRIX 6 passes "make test" now! 12792 This also avoids the problems with SC4.2 and unpatched SC5. 12793 [Andy Polyakov <appro@fy.chalmers.se>] 12794 12795 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 12796 These are required because of the typesafe stack would otherwise break 12797 existing code. If old code used a structure member which used to be STACK 12798 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 12799 sk_num or sk_value it would produce an error because the num, data members 12800 are not present in STACK_OF. Now it just produces a warning. sk_set 12801 replaces the old method of assigning a value to sk_value 12802 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 12803 that does this will no longer work (and should use sk_set instead) but 12804 this could be regarded as a "questionable" behaviour anyway. 12805 [Steve Henson] 12806 12807 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 12808 correctly handle encrypted S/MIME data. 12809 [Steve Henson] 12810 12811 *) Change type of various DES function arguments from des_cblock 12812 (which means, in function argument declarations, pointer to char) 12813 to des_cblock * (meaning pointer to array with 8 char elements), 12814 which allows the compiler to do more typechecking; it was like 12815 that back in SSLeay, but with lots of ugly casts. 12816 12817 Introduce new type const_des_cblock. 12818 [Bodo Moeller] 12819 12820 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 12821 problems: find RecipientInfo structure that matches recipient certificate 12822 and initialise the ASN1 structures properly based on passed cipher. 12823 [Steve Henson] 12824 12825 *) Belatedly make the BN tests actually check the results. 12826 [Ben Laurie] 12827 12828 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 12829 to and from BNs: it was completely broken. New compilation option 12830 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 12831 key elements as negative integers. 12832 [Steve Henson] 12833 12834 *) Reorganize and speed up MD5. 12835 [Andy Polyakov <appro@fy.chalmers.se>] 12836 12837 *) VMS support. 12838 [Richard Levitte <richard@levitte.org>] 12839 12840 *) New option -out to asn1parse to allow the parsed structure to be 12841 output to a file. This is most useful when combined with the -strparse 12842 option to examine the output of things like OCTET STRINGS. 12843 [Steve Henson] 12844 12845 *) Make SSL library a little more fool-proof by not requiring any longer 12846 that SSL_set_{accept,connect}_state be called before 12847 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 12848 in many applications because usually everything *appeared* to work as 12849 intended anyway -- now it really works as intended). 12850 [Bodo Moeller] 12851 12852 *) Move openssl.cnf out of lib/. 12853 [Ulf Möller] 12854 12855 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 12856 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 12857 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 12858 [Ralf S. Engelschall] 12859 12860 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 12861 handle PKCS#7 enveloped data properly. 12862 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 12863 12864 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 12865 copying pointers. The cert_st handling is changed by this in 12866 various ways (and thus what used to be known as ctx->default_cert 12867 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 12868 any longer when s->cert does not give us what we need). 12869 ssl_cert_instantiate becomes obsolete by this change. 12870 As soon as we've got the new code right (possibly it already is?), 12871 we have solved a couple of bugs of the earlier code where s->cert 12872 was used as if it could not have been shared with other SSL structures. 12873 12874 Note that using the SSL API in certain dirty ways now will result 12875 in different behaviour than observed with earlier library versions: 12876 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 12877 does not influence s as it used to. 12878 12879 In order to clean up things more thoroughly, inside SSL_SESSION 12880 we don't use CERT any longer, but a new structure SESS_CERT 12881 that holds per-session data (if available); currently, this is 12882 the peer's certificate chain and, for clients, the server's certificate 12883 and temporary key. CERT holds only those values that can have 12884 meaningful defaults in an SSL_CTX. 12885 [Bodo Moeller] 12886 12887 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 12888 from the internal representation. Various PKCS#7 fixes: remove some 12889 evil casts and set the enc_dig_alg field properly based on the signing 12890 key type. 12891 [Steve Henson] 12892 12893 *) Allow PKCS#12 password to be set from the command line or the 12894 environment. Let 'ca' get its config file name from the environment 12895 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 12896 and 'x509'). 12897 [Steve Henson] 12898 12899 *) Allow certificate policies extension to use an IA5STRING for the 12900 organization field. This is contrary to the PKIX definition but 12901 VeriSign uses it and IE5 only recognises this form. Document 'x509' 12902 extension option. 12903 [Steve Henson] 12904 12905 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 12906 without disallowing inline assembler and the like for non-pedantic builds. 12907 [Ben Laurie] 12908 12909 *) Support Borland C++ builder. 12910 [Janez Jere <jj@void.si>, modified by Ulf Möller] 12911 12912 *) Support Mingw32. 12913 [Ulf Möller] 12914 12915 *) SHA-1 cleanups and performance enhancements. 12916 [Andy Polyakov <appro@fy.chalmers.se>] 12917 12918 *) Sparc v8plus assembler for the bignum library. 12919 [Andy Polyakov <appro@fy.chalmers.se>] 12920 12921 *) Accept any -xxx and +xxx compiler options in Configure. 12922 [Ulf Möller] 12923 12924 *) Update HPUX configuration. 12925 [Anonymous] 12926 12927 *) Add missing sk_<type>_unshift() function to safestack.h 12928 [Ralf S. Engelschall] 12929 12930 *) New function SSL_CTX_use_certificate_chain_file that sets the 12931 "extra_cert"s in addition to the certificate. (This makes sense 12932 only for "PEM" format files, as chains as a whole are not 12933 DER-encoded.) 12934 [Bodo Moeller] 12935 12936 *) Support verify_depth from the SSL API. 12937 x509_vfy.c had what can be considered an off-by-one-error: 12938 Its depth (which was not part of the external interface) 12939 was actually counting the number of certificates in a chain; 12940 now it really counts the depth. 12941 [Bodo Moeller] 12942 12943 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 12944 instead of X509err, which often resulted in confusing error 12945 messages since the error codes are not globally unique 12946 (e.g. an alleged error in ssl3_accept when a certificate 12947 didn't match the private key). 12948 12949 *) New function SSL_CTX_set_session_id_context that allows to set a default 12950 value (so that you don't need SSL_set_session_id_context for each 12951 connection using the SSL_CTX). 12952 [Bodo Moeller] 12953 12954 *) OAEP decoding bug fix. 12955 [Ulf Möller] 12956 12957 *) Support INSTALL_PREFIX for package builders, as proposed by 12958 David Harris. 12959 [Bodo Moeller] 12960 12961 *) New Configure options "threads" and "no-threads". For systems 12962 where the proper compiler options are known (currently Solaris 12963 and Linux), "threads" is the default. 12964 [Bodo Moeller] 12965 12966 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 12967 [Bodo Moeller] 12968 12969 *) Install various scripts to $(OPENSSLDIR)/misc, not to 12970 $(INSTALLTOP)/bin -- they shouldn't clutter directories 12971 such as /usr/local/bin. 12972 [Bodo Moeller] 12973 12974 *) "make linux-shared" to build shared libraries. 12975 [Niels Poppe <niels@netbox.org>] 12976 12977 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 12978 [Ulf Möller] 12979 12980 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 12981 extension adding in x509 utility. 12982 [Steve Henson] 12983 12984 *) Remove NOPROTO sections and error code comments. 12985 [Ulf Möller] 12986 12987 *) Partial rewrite of the DEF file generator to now parse the ANSI 12988 prototypes. 12989 [Steve Henson] 12990 12991 *) New Configure options --prefix=DIR and --openssldir=DIR. 12992 [Ulf Möller] 12993 12994 *) Complete rewrite of the error code script(s). It is all now handled 12995 by one script at the top level which handles error code gathering, 12996 header rewriting and C source file generation. It should be much better 12997 than the old method: it now uses a modified version of Ulf's parser to 12998 read the ANSI prototypes in all header files (thus the old K&R definitions 12999 aren't needed for error creation any more) and do a better job of 13000 translating function codes into names. The old 'ASN1 error code embedded 13001 in a comment' is no longer necessary and it doesn't use .err files which 13002 have now been deleted. Also the error code call doesn't have to appear all 13003 on one line (which resulted in some large lines...). 13004 [Steve Henson] 13005 13006 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 13007 [Bodo Moeller] 13008 13009 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 13010 0 (which usually indicates a closed connection), but continue reading. 13011 [Bodo Moeller] 13012 13013 *) Fix some race conditions. 13014 [Bodo Moeller] 13015 13016 *) Add support for CRL distribution points extension. Add Certificate 13017 Policies and CRL distribution points documentation. 13018 [Steve Henson] 13019 13020 *) Move the autogenerated header file parts to crypto/opensslconf.h. 13021 [Ulf Möller] 13022 13023 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 13024 8 of keying material. Merlin has also confirmed interop with this fix 13025 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 13026 [Merlin Hughes <merlin@baltimore.ie>] 13027 13028 *) Fix lots of warnings. 13029 [Richard Levitte <levitte@stacken.kth.se>] 13030 13031 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 13032 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 13033 [Richard Levitte <levitte@stacken.kth.se>] 13034 13035 *) Fix problems with sizeof(long) == 8. 13036 [Andy Polyakov <appro@fy.chalmers.se>] 13037 13038 *) Change functions to ANSI C. 13039 [Ulf Möller] 13040 13041 *) Fix typos in error codes. 13042 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller] 13043 13044 *) Remove defunct assembler files from Configure. 13045 [Ulf Möller] 13046 13047 *) SPARC v8 assembler BIGNUM implementation. 13048 [Andy Polyakov <appro@fy.chalmers.se>] 13049 13050 *) Support for Certificate Policies extension: both print and set. 13051 Various additions to support the r2i method this uses. 13052 [Steve Henson] 13053 13054 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 13055 return a const string when you are expecting an allocated buffer. 13056 [Ben Laurie] 13057 13058 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 13059 types DirectoryString and DisplayText. 13060 [Steve Henson] 13061 13062 *) Add code to allow r2i extensions to access the configuration database, 13063 add an LHASH database driver and add several ctx helper functions. 13064 [Steve Henson] 13065 13066 *) Fix an evil bug in bn_expand2() which caused various BN functions to 13067 fail when they extended the size of a BIGNUM. 13068 [Steve Henson] 13069 13070 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 13071 support typesafe stack. 13072 [Steve Henson] 13073 13074 *) Fix typo in SSL_[gs]et_options(). 13075 [Nils Frostberg <nils@medcom.se>] 13076 13077 *) Delete various functions and files that belonged to the (now obsolete) 13078 old X509V3 handling code. 13079 [Steve Henson] 13080 13081 *) New Configure option "rsaref". 13082 [Ulf Möller] 13083 13084 *) Don't auto-generate pem.h. 13085 [Bodo Moeller] 13086 13087 *) Introduce type-safe ASN.1 SETs. 13088 [Ben Laurie] 13089 13090 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 13091 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 13092 13093 *) Introduce type-safe STACKs. This will almost certainly break lots of code 13094 that links with OpenSSL (well at least cause lots of warnings), but fear 13095 not: the conversion is trivial, and it eliminates loads of evil casts. A 13096 few STACKed things have been converted already. Feel free to convert more. 13097 In the fullness of time, I'll do away with the STACK type altogether. 13098 [Ben Laurie] 13099 13100 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 13101 specified in <certfile> by updating the entry in the index.txt file. 13102 This way one no longer has to edit the index.txt file manually for 13103 revoking a certificate. The -revoke option does the gory details now. 13104 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 13105 13106 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 13107 `-text' option at all and this way the `-noout -text' combination was 13108 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 13109 [Ralf S. Engelschall] 13110 13111 *) Make sure a corresponding plain text error message exists for the 13112 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 13113 verify callback function determined that a certificate was revoked. 13114 [Ralf S. Engelschall] 13115 13116 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 13117 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 13118 all available ciphers including rc5, which was forgotten until now. 13119 In order to let the testing shell script know which algorithms 13120 are available, a new (up to now undocumented) command 13121 "openssl list-cipher-commands" is used. 13122 [Bodo Moeller] 13123 13124 *) Bugfix: s_client occasionally would sleep in select() when 13125 it should have checked SSL_pending() first. 13126 [Bodo Moeller] 13127 13128 *) New functions DSA_do_sign and DSA_do_verify to provide access to 13129 the raw DSA values prior to ASN.1 encoding. 13130 [Ulf Möller] 13131 13132 *) Tweaks to Configure 13133 [Niels Poppe <niels@netbox.org>] 13134 13135 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 13136 yet... 13137 [Steve Henson] 13138 13139 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 13140 [Ulf Möller] 13141 13142 *) New config option to avoid instructions that are illegal on the 80386. 13143 The default code is faster, but requires at least a 486. 13144 [Ulf Möller] 13145 13146 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 13147 SSL2_SERVER_VERSION (not used at all) macros, which are now the 13148 same as SSL2_VERSION anyway. 13149 [Bodo Moeller] 13150 13151 *) New "-showcerts" option for s_client. 13152 [Bodo Moeller] 13153 13154 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 13155 application. Various cleanups and fixes. 13156 [Steve Henson] 13157 13158 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 13159 modify error routines to work internally. Add error codes and PBE init 13160 to library startup routines. 13161 [Steve Henson] 13162 13163 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 13164 packing functions to asn1 and evp. Changed function names and error 13165 codes along the way. 13166 [Steve Henson] 13167 13168 *) PKCS12 integration: and so it begins... First of several patches to 13169 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 13170 objects to objects.h 13171 [Steve Henson] 13172 13173 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 13174 and display support for Thawte strong extranet extension. 13175 [Steve Henson] 13176 13177 *) Add LinuxPPC support. 13178 [Jeff Dubrule <igor@pobox.org>] 13179 13180 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 13181 bn_div_words in alpha.s. 13182 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 13183 13184 *) Make sure the RSA OAEP test is skipped under -DRSAref because 13185 OAEP isn't supported when OpenSSL is built with RSAref. 13186 [Ulf Moeller <ulf@fitug.de>] 13187 13188 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 13189 so they no longer are missing under -DNOPROTO. 13190 [Soren S. Jorvang <soren@t.dk>] 13191 13192 13193 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 13194 13195 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 13196 doesn't work when the session is reused. Coming soon! 13197 [Ben Laurie] 13198 13199 *) Fix a security hole, that allows sessions to be reused in the wrong 13200 context thus bypassing client cert protection! All software that uses 13201 client certs and session caches in multiple contexts NEEDS PATCHING to 13202 allow session reuse! A fuller solution is in the works. 13203 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 13204 13205 *) Some more source tree cleanups (removed obsolete files 13206 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 13207 permission on "config" script to be executable) and a fix for the INSTALL 13208 document. 13209 [Ulf Moeller <ulf@fitug.de>] 13210 13211 *) Remove some legacy and erroneous uses of malloc, free instead of 13212 Malloc, Free. 13213 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 13214 13215 *) Make rsa_oaep_test return non-zero on error. 13216 [Ulf Moeller <ulf@fitug.de>] 13217 13218 *) Add support for native Solaris shared libraries. Configure 13219 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 13220 if someone would make that last step automatic. 13221 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 13222 13223 *) ctx_size was not built with the right compiler during "make links". Fixed. 13224 [Ben Laurie] 13225 13226 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 13227 except NULL ciphers". This means the default cipher list will no longer 13228 enable NULL ciphers. They need to be specifically enabled e.g. with 13229 the string "DEFAULT:eNULL". 13230 [Steve Henson] 13231 13232 *) Fix to RSA private encryption routines: if p < q then it would 13233 occasionally produce an invalid result. This will only happen with 13234 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 13235 [Steve Henson] 13236 13237 *) Be less restrictive and allow also `perl util/perlpath.pl 13238 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 13239 because this way one can also use an interpreter named `perl5' (which is 13240 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 13241 installed as `perl'). 13242 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 13243 13244 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 13245 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 13246 13247 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 13248 advapi32.lib to Win32 build and change the pem test comparison 13249 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 13250 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 13251 and crypto/des/ede_cbcm_enc.c. 13252 [Steve Henson] 13253 13254 *) DES quad checksum was broken on big-endian architectures. Fixed. 13255 [Ben Laurie] 13256 13257 *) Comment out two functions in bio.h that aren't implemented. Fix up the 13258 Win32 test batch file so it (might) work again. The Win32 test batch file 13259 is horrible: I feel ill.... 13260 [Steve Henson] 13261 13262 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 13263 in e_os.h. Audit of header files to check ANSI and non ANSI 13264 sections: 10 functions were absent from non ANSI section and not exported 13265 from Windows DLLs. Fixed up libeay.num for new functions. 13266 [Steve Henson] 13267 13268 *) Make `openssl version' output lines consistent. 13269 [Ralf S. Engelschall] 13270 13271 *) Fix Win32 symbol export lists for BIO functions: Added 13272 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 13273 to ms/libeay{16,32}.def. 13274 [Ralf S. Engelschall] 13275 13276 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 13277 fine under Unix and passes some trivial tests I've now added. But the 13278 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 13279 added to make sure no one expects that this stuff really works in the 13280 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 13281 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 13282 openssl_bio.xs. 13283 [Ralf S. Engelschall] 13284 13285 *) Fix the generation of two part addresses in perl. 13286 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 13287 13288 *) Add config entry for Linux on MIPS. 13289 [John Tobey <jtobey@channel1.com>] 13290 13291 *) Make links whenever Configure is run, unless we are on Windoze. 13292 [Ben Laurie] 13293 13294 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 13295 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 13296 in CRLs. 13297 [Steve Henson] 13298 13299 *) Add a useful kludge to allow package maintainers to specify compiler and 13300 other platforms details on the command line without having to patch the 13301 Configure script every time: One now can use ``perl Configure 13302 <id>:<details>'', i.e. platform ids are allowed to have details appended 13303 to them (separated by colons). This is treated as there would be a static 13304 pre-configured entry in Configure's %table under key <id> with value 13305 <details> and ``perl Configure <id>'' is called. So, when you want to 13306 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 13307 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 13308 now, which overrides the FreeBSD-elf entry on-the-fly. 13309 [Ralf S. Engelschall] 13310 13311 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 13312 [Ben Laurie] 13313 13314 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 13315 on the `perl Configure ...' command line. This way one can compile 13316 OpenSSL libraries with Position Independent Code (PIC) which is needed 13317 for linking it into DSOs. 13318 [Ralf S. Engelschall] 13319 13320 *) Remarkably, export ciphers were totally broken and no-one had noticed! 13321 Fixed. 13322 [Ben Laurie] 13323 13324 *) Cleaned up the LICENSE document: The official contact for any license 13325 questions now is the OpenSSL core team under openssl-core@openssl.org. 13326 And add a paragraph about the dual-license situation to make sure people 13327 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 13328 to the OpenSSL toolkit. 13329 [Ralf S. Engelschall] 13330 13331 *) General source tree makefile cleanups: Made `making xxx in yyy...' 13332 display consistent in the source tree and replaced `/bin/rm' by `rm'. 13333 Additionally cleaned up the `make links' target: Remove unnecessary 13334 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 13335 to speed processing and no longer clutter the display with confusing 13336 stuff. Instead only the actually done links are displayed. 13337 [Ralf S. Engelschall] 13338 13339 *) Permit null encryption ciphersuites, used for authentication only. It used 13340 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 13341 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 13342 encryption. 13343 [Ben Laurie] 13344 13345 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 13346 signed attributes when verifying signatures (this would break them), 13347 the detached data encoding was wrong and public keys obtained using 13348 X509_get_pubkey() weren't freed. 13349 [Steve Henson] 13350 13351 *) Add text documentation for the BUFFER functions. Also added a work around 13352 to a Win95 console bug. This was triggered by the password read stuff: the 13353 last character typed gets carried over to the next fread(). If you were 13354 generating a new cert request using 'req' for example then the last 13355 character of the passphrase would be CR which would then enter the first 13356 field as blank. 13357 [Steve Henson] 13358 13359 *) Added the new `Includes OpenSSL Cryptography Software' button as 13360 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 13361 button and can be used by applications based on OpenSSL to show the 13362 relationship to the OpenSSL project. 13363 [Ralf S. Engelschall] 13364 13365 *) Remove confusing variables in function signatures in files 13366 ssl/ssl_lib.c and ssl/ssl.h. 13367 [Lennart Bong <lob@kulthea.stacken.kth.se>] 13368 13369 *) Don't install bss_file.c under PREFIX/include/ 13370 [Lennart Bong <lob@kulthea.stacken.kth.se>] 13371 13372 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 13373 functions that return function pointers and has support for NT specific 13374 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 13375 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 13376 unsigned to signed types: this was killing the Win32 compile. 13377 [Steve Henson] 13378 13379 *) Add new certificate file to stack functions, 13380 SSL_add_dir_cert_subjects_to_stack() and 13381 SSL_add_file_cert_subjects_to_stack(). These largely supplant 13382 SSL_load_client_CA_file(), and can be used to add multiple certs easily 13383 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 13384 This means that Apache-SSL and similar packages don't have to mess around 13385 to add as many CAs as they want to the preferred list. 13386 [Ben Laurie] 13387 13388 *) Experiment with doxygen documentation. Currently only partially applied to 13389 ssl/ssl_lib.c. 13390 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 13391 openssl.doxy as the configuration file. 13392 [Ben Laurie] 13393 13394 *) Get rid of remaining C++-style comments which strict C compilers hate. 13395 [Ralf S. Engelschall, pointed out by Carlos Amengual] 13396 13397 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 13398 compiled in by default: it has problems with large keys. 13399 [Steve Henson] 13400 13401 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 13402 DH private keys and/or callback functions which directly correspond to 13403 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 13404 is needed for applications which have to configure certificates on a 13405 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 13406 (e.g. s_server). 13407 For the RSA certificate situation is makes no difference, but 13408 for the DSA certificate situation this fixes the "no shared cipher" 13409 problem where the OpenSSL cipher selection procedure failed because the 13410 temporary keys were not overtaken from the context and the API provided 13411 no way to reconfigure them. 13412 The new functions now let applications reconfigure the stuff and they 13413 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 13414 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 13415 non-public-API function ssl_cert_instantiate() is used as a helper 13416 function and also to reduce code redundancy inside ssl_rsa.c. 13417 [Ralf S. Engelschall] 13418 13419 *) Move s_server -dcert and -dkey options out of the undocumented feature 13420 area because they are useful for the DSA situation and should be 13421 recognized by the users. 13422 [Ralf S. Engelschall] 13423 13424 *) Fix the cipher decision scheme for export ciphers: the export bits are 13425 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 13426 SSL_EXP_MASK. So, the original variable has to be used instead of the 13427 already masked variable. 13428 [Richard Levitte <levitte@stacken.kth.se>] 13429 13430 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 13431 [Richard Levitte <levitte@stacken.kth.se>] 13432 13433 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 13434 from `int' to `unsigned int' because it's a length and initialized by 13435 EVP_DigestFinal() which expects an `unsigned int *'. 13436 [Richard Levitte <levitte@stacken.kth.se>] 13437 13438 *) Don't hard-code path to Perl interpreter on shebang line of Configure 13439 script. Instead use the usual Shell->Perl transition trick. 13440 [Ralf S. Engelschall] 13441 13442 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 13443 (in addition to RSA certificates) to match the behaviour of `openssl dsa 13444 -noout -modulus' as it's already the case for `openssl rsa -noout 13445 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 13446 currently the public key is printed (a decision which was already done by 13447 `openssl dsa -modulus' in the past) which serves a similar purpose. 13448 Additionally the NO_RSA no longer completely removes the whole -modulus 13449 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 13450 now, too. 13451 [Ralf S. Engelschall] 13452 13453 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 13454 BIO. See the source (crypto/evp/bio_ok.c) for more info. 13455 [Arne Ansper <arne@ats.cyber.ee>] 13456 13457 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 13458 to be added. Now both 'req' and 'ca' can use new objects defined in the 13459 config file. 13460 [Steve Henson] 13461 13462 *) Add cool BIO that does syslog (or event log on NT). 13463 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 13464 13465 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 13466 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 13467 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 13468 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 13469 [Ben Laurie] 13470 13471 *) Add preliminary config info for new extension code. 13472 [Steve Henson] 13473 13474 *) Make RSA_NO_PADDING really use no padding. 13475 [Ulf Moeller <ulf@fitug.de>] 13476 13477 *) Generate errors when private/public key check is done. 13478 [Ben Laurie] 13479 13480 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 13481 for some CRL extensions and new objects added. 13482 [Steve Henson] 13483 13484 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 13485 key usage extension and fuller support for authority key id. 13486 [Steve Henson] 13487 13488 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 13489 padding method for RSA, which is recommended for new applications in PKCS 13490 #1 v2.0 (RFC 2437, October 1998). 13491 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 13492 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 13493 against Bleichbacher's attack on RSA. 13494 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 13495 Ben Laurie] 13496 13497 *) Updates to the new SSL compression code 13498 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 13499 13500 *) Fix so that the version number in the master secret, when passed 13501 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 13502 (because the server will not accept higher), that the version number 13503 is 0x03,0x01, not 0x03,0x00 13504 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 13505 13506 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 13507 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 13508 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 13509 [Steve Henson] 13510 13511 *) Support for RAW extensions where an arbitrary extension can be 13512 created by including its DER encoding. See apps/openssl.cnf for 13513 an example. 13514 [Steve Henson] 13515 13516 *) Make sure latest Perl versions don't interpret some generated C array 13517 code as Perl array code in the crypto/err/err_genc.pl script. 13518 [Lars Weber <3weber@informatik.uni-hamburg.de>] 13519 13520 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 13521 not many people have the assembler. Various Win32 compilation fixes and 13522 update to the INSTALL.W32 file with (hopefully) more accurate Win32 13523 build instructions. 13524 [Steve Henson] 13525 13526 *) Modify configure script 'Configure' to automatically create crypto/date.h 13527 file under Win32 and also build pem.h from pem.org. New script 13528 util/mkfiles.pl to create the MINFO file on environments that can't do a 13529 'make files': perl util/mkfiles.pl >MINFO should work. 13530 [Steve Henson] 13531 13532 *) Major rework of DES function declarations, in the pursuit of correctness 13533 and purity. As a result, many evil casts evaporated, and some weirdness, 13534 too. You may find this causes warnings in your code. Zapping your evil 13535 casts will probably fix them. Mostly. 13536 [Ben Laurie] 13537 13538 *) Fix for a typo in asn1.h. Bug fix to object creation script 13539 obj_dat.pl. It considered a zero in an object definition to mean 13540 "end of object": none of the objects in objects.h have any zeros 13541 so it wasn't spotted. 13542 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 13543 13544 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 13545 Masking (CBCM). In the absence of test vectors, the best I have been able 13546 to do is check that the decrypt undoes the encrypt, so far. Send me test 13547 vectors if you have them. 13548 [Ben Laurie] 13549 13550 *) Correct calculation of key length for export ciphers (too much space was 13551 allocated for null ciphers). This has not been tested! 13552 [Ben Laurie] 13553 13554 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 13555 message is now correct (it understands "crypto" and "ssl" on its 13556 command line). There is also now an "update" option. This will update 13557 the util/ssleay.num and util/libeay.num files with any new functions. 13558 If you do a: 13559 perl util/mkdef.pl crypto ssl update 13560 it will update them. 13561 [Steve Henson] 13562 13563 *) Overhauled the Perl interface (perl/*): 13564 - ported BN stuff to OpenSSL's different BN library 13565 - made the perl/ source tree CVS-aware 13566 - renamed the package from SSLeay to OpenSSL (the files still contain 13567 their history because I've copied them in the repository) 13568 - removed obsolete files (the test scripts will be replaced 13569 by better Test::Harness variants in the future) 13570 [Ralf S. Engelschall] 13571 13572 *) First cut for a very conservative source tree cleanup: 13573 1. merge various obsolete readme texts into doc/ssleay.txt 13574 where we collect the old documents and readme texts. 13575 2. remove the first part of files where I'm already sure that we no 13576 longer need them because of three reasons: either they are just temporary 13577 files which were left by Eric or they are preserved original files where 13578 I've verified that the diff is also available in the CVS via "cvs diff 13579 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 13580 the crypto/md/ stuff). 13581 [Ralf S. Engelschall] 13582 13583 *) More extension code. Incomplete support for subject and issuer alt 13584 name, issuer and authority key id. Change the i2v function parameters 13585 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 13586 what that's for :-) Fix to ASN1 macro which messed up 13587 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 13588 [Steve Henson] 13589 13590 *) Preliminary support for ENUMERATED type. This is largely copied from the 13591 INTEGER code. 13592 [Steve Henson] 13593 13594 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 13595 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 13596 13597 *) Make sure `make rehash' target really finds the `openssl' program. 13598 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 13599 13600 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 13601 like to hear about it if this slows down other processors. 13602 [Ben Laurie] 13603 13604 *) Add CygWin32 platform information to Configure script. 13605 [Alan Batie <batie@aahz.jf.intel.com>] 13606 13607 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 13608 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 13609 13610 *) New program nseq to manipulate netscape certificate sequences 13611 [Steve Henson] 13612 13613 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 13614 few typos. 13615 [Steve Henson] 13616 13617 *) Fixes to BN code. Previously the default was to define BN_RECURSION 13618 but the BN code had some problems that would cause failures when 13619 doing certificate verification and some other functions. 13620 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 13621 13622 *) Add ASN1 and PEM code to support netscape certificate sequences. 13623 [Steve Henson] 13624 13625 *) Add ASN1 and PEM code to support netscape certificate sequences. 13626 [Steve Henson] 13627 13628 *) Add several PKIX and private extended key usage OIDs. 13629 [Steve Henson] 13630 13631 *) Modify the 'ca' program to handle the new extension code. Modify 13632 openssl.cnf for new extension format, add comments. 13633 [Steve Henson] 13634 13635 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 13636 and add a sample to openssl.cnf so req -x509 now adds appropriate 13637 CA extensions. 13638 [Steve Henson] 13639 13640 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 13641 error code, add initial support to X509_print() and x509 application. 13642 [Steve Henson] 13643 13644 *) Takes a deep breath and start adding X509 V3 extension support code. Add 13645 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 13646 stuff is currently isolated and isn't even compiled yet. 13647 [Steve Henson] 13648 13649 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 13650 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 13651 Removed the versions check from X509 routines when loading extensions: 13652 this allows certain broken certificates that don't set the version 13653 properly to be processed. 13654 [Steve Henson] 13655 13656 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 13657 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 13658 can still be regenerated with "make depend". 13659 [Ben Laurie] 13660 13661 *) Spelling mistake in C version of CAST-128. 13662 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 13663 13664 *) Changes to the error generation code. The perl script err-code.pl 13665 now reads in the old error codes and retains the old numbers, only 13666 adding new ones if necessary. It also only changes the .err files if new 13667 codes are added. The makefiles have been modified to only insert errors 13668 when needed (to avoid needlessly modifying header files). This is done 13669 by only inserting errors if the .err file is newer than the auto generated 13670 C file. To rebuild all the error codes from scratch (the old behaviour) 13671 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 13672 or delete all the .err files. 13673 [Steve Henson] 13674 13675 *) CAST-128 was incorrectly implemented for short keys. The C version has 13676 been fixed, but is untested. The assembler versions are also fixed, but 13677 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 13678 to regenerate it if needed. 13679 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 13680 Hagino <itojun@kame.net>] 13681 13682 *) File was opened incorrectly in randfile.c. 13683 [Ulf Möller <ulf@fitug.de>] 13684 13685 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 13686 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 13687 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 13688 al: it's just almost always a UTCTime. Note this patch adds new error 13689 codes so do a "make errors" if there are problems. 13690 [Steve Henson] 13691 13692 *) Correct Linux 1 recognition in config. 13693 [Ulf Möller <ulf@fitug.de>] 13694 13695 *) Remove pointless MD5 hash when using DSA keys in ca. 13696 [Anonymous <nobody@replay.com>] 13697 13698 *) Generate an error if given an empty string as a cert directory. Also 13699 generate an error if handed NULL (previously returned 0 to indicate an 13700 error, but didn't set one). 13701 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 13702 13703 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 13704 [Ben Laurie] 13705 13706 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 13707 parameters. This was causing a warning which killed off the Win32 compile. 13708 [Steve Henson] 13709 13710 *) Remove C++ style comments from crypto/bn/bn_local.h. 13711 [Neil Costigan <neil.costigan@celocom.com>] 13712 13713 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 13714 based on a text string, looking up short and long names and finally 13715 "dot" format. The "dot" format stuff didn't work. Added new function 13716 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 13717 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 13718 OID is not part of the table. 13719 [Steve Henson] 13720 13721 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 13722 X509_LOOKUP_by_alias(). 13723 [Ben Laurie] 13724 13725 *) Sort openssl functions by name. 13726 [Ben Laurie] 13727 13728 *) Get the gendsa program working (hopefully) and add it to app list. Remove 13729 encryption from sample DSA keys (in case anyone is interested the password 13730 was "1234"). 13731 [Steve Henson] 13732 13733 *) Make _all_ *_free functions accept a NULL pointer. 13734 [Frans Heymans <fheymans@isaserver.be>] 13735 13736 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 13737 NULL pointers. 13738 [Anonymous <nobody@replay.com>] 13739 13740 *) s_server should send the CAfile as acceptable CAs, not its own cert. 13741 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 13742 13743 *) Don't blow it for numeric -newkey arguments to apps/req. 13744 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 13745 13746 *) Temp key "for export" tests were wrong in s3_srvr.c. 13747 [Anonymous <nobody@replay.com>] 13748 13749 *) Add prototype for temp key callback functions 13750 SSL_CTX_set_tmp_{rsa,dh}_callback(). 13751 [Ben Laurie] 13752 13753 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 13754 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 13755 [Steve Henson] 13756 13757 *) X509_name_add_entry() freed the wrong thing after an error. 13758 [Arne Ansper <arne@ats.cyber.ee>] 13759 13760 *) rsa_eay.c would attempt to free a NULL context. 13761 [Arne Ansper <arne@ats.cyber.ee>] 13762 13763 *) BIO_s_socket() had a broken should_retry() on Windoze. 13764 [Arne Ansper <arne@ats.cyber.ee>] 13765 13766 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 13767 [Arne Ansper <arne@ats.cyber.ee>] 13768 13769 *) Make sure the already existing X509_STORE->depth variable is initialized 13770 in X509_STORE_new(), but document the fact that this variable is still 13771 unused in the certificate verification process. 13772 [Ralf S. Engelschall] 13773 13774 *) Fix the various library and apps files to free up pkeys obtained from 13775 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 13776 [Steve Henson] 13777 13778 *) Fix reference counting in X509_PUBKEY_get(). This makes 13779 demos/maurice/example2.c work, amongst others, probably. 13780 [Steve Henson and Ben Laurie] 13781 13782 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 13783 `openssl' and second, the shortcut symlinks for the `openssl <command>' 13784 are no longer created. This way we have a single and consistent command 13785 line interface `openssl <command>', similar to `cvs <command>'. 13786 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 13787 13788 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 13789 BIT STRING wrapper always have zero unused bits. 13790 [Steve Henson] 13791 13792 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 13793 [Steve Henson] 13794 13795 *) Make the top-level INSTALL documentation easier to understand. 13796 [Paul Sutton] 13797 13798 *) Makefiles updated to exit if an error occurs in a sub-directory 13799 make (including if user presses ^C) [Paul Sutton] 13800 13801 *) Make Montgomery context stuff explicit in RSA data structure. 13802 [Ben Laurie] 13803 13804 *) Fix build order of pem and err to allow for generated pem.h. 13805 [Ben Laurie] 13806 13807 *) Fix renumbering bug in X509_NAME_delete_entry(). 13808 [Ben Laurie] 13809 13810 *) Enhanced the err-ins.pl script so it makes the error library number 13811 global and can add a library name. This is needed for external ASN1 and 13812 other error libraries. 13813 [Steve Henson] 13814 13815 *) Fixed sk_insert which never worked properly. 13816 [Steve Henson] 13817 13818 *) Fix ASN1 macros so they can handle indefinite length constructed 13819 EXPLICIT tags. Some non standard certificates use these: they can now 13820 be read in. 13821 [Steve Henson] 13822 13823 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 13824 into a single doc/ssleay.txt bundle. This way the information is still 13825 preserved but no longer messes up this directory. Now it's new room for 13826 the new set of documentation files. 13827 [Ralf S. Engelschall] 13828 13829 *) SETs were incorrectly DER encoded. This was a major pain, because they 13830 shared code with SEQUENCEs, which aren't coded the same. This means that 13831 almost everything to do with SETs or SEQUENCEs has either changed name or 13832 number of arguments. 13833 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 13834 13835 *) Fix test data to work with the above. 13836 [Ben Laurie] 13837 13838 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 13839 was already fixed by Eric for 0.9.1 it seems. 13840 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>] 13841 13842 *) Autodetect FreeBSD3. 13843 [Ben Laurie] 13844 13845 *) Fix various bugs in Configure. This affects the following platforms: 13846 nextstep 13847 ncr-scde 13848 unixware-2.0 13849 unixware-2.0-pentium 13850 sco5-cc. 13851 [Ben Laurie] 13852 13853 *) Eliminate generated files from CVS. Reorder tests to regenerate files 13854 before they are needed. 13855 [Ben Laurie] 13856 13857 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 13858 [Ben Laurie] 13859 13860 13861 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 13862 13863 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 13864 changed SSLeay to OpenSSL in version strings. 13865 [Ralf S. Engelschall] 13866 13867 *) Some fixups to the top-level documents. 13868 [Paul Sutton] 13869 13870 *) Fixed the nasty bug where rsaref.h was not found under compile-time 13871 because the symlink to include/ was missing. 13872 [Ralf S. Engelschall] 13873 13874 *) Incorporated the popular no-RSA/DSA-only patches 13875 which allow to compile a RSA-free SSLeay. 13876 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 13877 13878 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 13879 when "ssleay" is still not found. 13880 [Ralf S. Engelschall] 13881 13882 *) Added more platforms to Configure: Cray T3E, HPUX 11, 13883 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 13884 13885 *) Updated the README file. 13886 [Ralf S. Engelschall] 13887 13888 *) Added various .cvsignore files in the CVS repository subdirs 13889 to make a "cvs update" really silent. 13890 [Ralf S. Engelschall] 13891 13892 *) Recompiled the error-definition header files and added 13893 missing symbols to the Win32 linker tables. 13894 [Ralf S. Engelschall] 13895 13896 *) Cleaned up the top-level documents; 13897 o new files: CHANGES and LICENSE 13898 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 13899 o merged COPYRIGHT into LICENSE 13900 o removed obsolete TODO file 13901 o renamed MICROSOFT to INSTALL.W32 13902 [Ralf S. Engelschall] 13903 13904 *) Removed dummy files from the 0.9.1b source tree: 13905 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 13906 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 13907 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 13908 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 13909 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 13910 [Ralf S. Engelschall] 13911 13912 *) Added various platform portability fixes. 13913 [Mark J. Cox] 13914 13915 *) The Genesis of the OpenSSL rpject: 13916 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 13917 Young and Tim J. Hudson created while they were working for C2Net until 13918 summer 1998. 13919 [The OpenSSL Project] 13920 13921 13922 Changes between 0.9.0b and 0.9.1b [not released] 13923 13924 *) Updated a few CA certificates under certs/ 13925 [Eric A. Young] 13926 13927 *) Changed some BIGNUM api stuff. 13928 [Eric A. Young] 13929 13930 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 13931 DGUX x86, Linux Alpha, etc. 13932 [Eric A. Young] 13933 13934 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 13935 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 13936 available). 13937 [Eric A. Young] 13938 13939 *) Add -strparse option to asn1pars program which parses nested 13940 binary structures 13941 [Dr Stephen Henson <shenson@bigfoot.com>] 13942 13943 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 13944 [Eric A. Young] 13945 13946 *) DSA fix for "ca" program. 13947 [Eric A. Young] 13948 13949 *) Added "-genkey" option to "dsaparam" program. 13950 [Eric A. Young] 13951 13952 *) Added RIPE MD160 (rmd160) message digest. 13953 [Eric A. Young] 13954 13955 *) Added -a (all) option to "ssleay version" command. 13956 [Eric A. Young] 13957 13958 *) Added PLATFORM define which is the id given to Configure. 13959 [Eric A. Young] 13960 13961 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 13962 [Eric A. Young] 13963 13964 *) Extended the ASN.1 parser routines. 13965 [Eric A. Young] 13966 13967 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 13968 [Eric A. Young] 13969 13970 *) Added a BN_CTX to the BN library. 13971 [Eric A. Young] 13972 13973 *) Fixed the weak key values in DES library 13974 [Eric A. Young] 13975 13976 *) Changed API in EVP library for cipher aliases. 13977 [Eric A. Young] 13978 13979 *) Added support for RC2/64bit cipher. 13980 [Eric A. Young] 13981 13982 *) Converted the lhash library to the crypto/mem.c functions. 13983 [Eric A. Young] 13984 13985 *) Added more recognized ASN.1 object ids. 13986 [Eric A. Young] 13987 13988 *) Added more RSA padding checks for SSL/TLS. 13989 [Eric A. Young] 13990 13991 *) Added BIO proxy/filter functionality. 13992 [Eric A. Young] 13993 13994 *) Added extra_certs to SSL_CTX which can be used 13995 send extra CA certificates to the client in the CA cert chain sending 13996 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 13997 [Eric A. Young] 13998 13999 *) Now Fortezza is denied in the authentication phase because 14000 this is key exchange mechanism is not supported by SSLeay at all. 14001 [Eric A. Young] 14002 14003 *) Additional PKCS1 checks. 14004 [Eric A. Young] 14005 14006 *) Support the string "TLSv1" for all TLS v1 ciphers. 14007 [Eric A. Young] 14008 14009 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 14010 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 14011 [Eric A. Young] 14012 14013 *) Fixed a few memory leaks. 14014 [Eric A. Young] 14015 14016 *) Fixed various code and comment typos. 14017 [Eric A. Young] 14018 14019 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 14020 bytes sent in the client random. 14021 [Edward Bishop <ebishop@spyglass.com>] 14022