| 1 |
/* apps/dhparam.c */ |
| 2 |
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| 3 |
* All rights reserved. |
| 4 |
* |
| 5 |
* This package is an SSL implementation written |
| 6 |
* by Eric Young (eay@cryptsoft.com). |
| 7 |
* The implementation was written so as to conform with Netscapes SSL. |
| 8 |
* |
| 9 |
* This library is free for commercial and non-commercial use as long as |
| 10 |
* the following conditions are aheared to. The following conditions |
| 11 |
* apply to all code found in this distribution, be it the RC4, RSA, |
| 12 |
* lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| 13 |
* included with this distribution is covered by the same copyright terms |
| 14 |
* except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| 15 |
* |
| 16 |
* Copyright remains Eric Young's, and as such any Copyright notices in |
| 17 |
* the code are not to be removed. |
| 18 |
* If this package is used in a product, Eric Young should be given attribution |
| 19 |
* as the author of the parts of the library used. |
| 20 |
* This can be in the form of a textual message at program startup or |
| 21 |
* in documentation (online or textual) provided with the package. |
| 22 |
* |
| 23 |
* Redistribution and use in source and binary forms, with or without |
| 24 |
* modification, are permitted provided that the following conditions |
| 25 |
* are met: |
| 26 |
* 1. Redistributions of source code must retain the copyright |
| 27 |
* notice, this list of conditions and the following disclaimer. |
| 28 |
* 2. Redistributions in binary form must reproduce the above copyright |
| 29 |
* notice, this list of conditions and the following disclaimer in the |
| 30 |
* documentation and/or other materials provided with the distribution. |
| 31 |
* 3. All advertising materials mentioning features or use of this software |
| 32 |
* must display the following acknowledgement: |
| 33 |
* "This product includes cryptographic software written by |
| 34 |
* Eric Young (eay@cryptsoft.com)" |
| 35 |
* The word 'cryptographic' can be left out if the rouines from the library |
| 36 |
* being used are not cryptographic related :-). |
| 37 |
* 4. If you include any Windows specific code (or a derivative thereof) from |
| 38 |
* the apps directory (application code) you must include an acknowledgement: |
| 39 |
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| 40 |
* |
| 41 |
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| 42 |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 43 |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 44 |
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 45 |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 46 |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 47 |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 48 |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 49 |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 50 |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 51 |
* SUCH DAMAGE. |
| 52 |
* |
| 53 |
* The licence and distribution terms for any publically available version or |
| 54 |
* derivative of this code cannot be changed. i.e. this code cannot simply be |
| 55 |
* copied and put under another distribution licence |
| 56 |
* [including the GNU Public Licence.] |
| 57 |
*/ |
| 58 |
/* ==================================================================== |
| 59 |
* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. |
| 60 |
* |
| 61 |
* Redistribution and use in source and binary forms, with or without |
| 62 |
* modification, are permitted provided that the following conditions |
| 63 |
* are met: |
| 64 |
* |
| 65 |
* 1. Redistributions of source code must retain the above copyright |
| 66 |
* notice, this list of conditions and the following disclaimer. |
| 67 |
* |
| 68 |
* 2. Redistributions in binary form must reproduce the above copyright |
| 69 |
* notice, this list of conditions and the following disclaimer in |
| 70 |
* the documentation and/or other materials provided with the |
| 71 |
* distribution. |
| 72 |
* |
| 73 |
* 3. All advertising materials mentioning features or use of this |
| 74 |
* software must display the following acknowledgment: |
| 75 |
* "This product includes software developed by the OpenSSL Project |
| 76 |
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
| 77 |
* |
| 78 |
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 79 |
* endorse or promote products derived from this software without |
| 80 |
* prior written permission. For written permission, please contact |
| 81 |
* openssl-core@openssl.org. |
| 82 |
* |
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* 5. Products derived from this software may not be called "OpenSSL" |
| 84 |
* nor may "OpenSSL" appear in their names without prior written |
| 85 |
* permission of the OpenSSL Project. |
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* |
| 87 |
* 6. Redistributions of any form whatsoever must retain the following |
| 88 |
* acknowledgment: |
| 89 |
* "This product includes software developed by the OpenSSL Project |
| 90 |
* for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
| 91 |
* |
| 92 |
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 93 |
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 94 |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 95 |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 96 |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 97 |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 98 |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 99 |
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 100 |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 101 |
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 102 |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 103 |
* OF THE POSSIBILITY OF SUCH DAMAGE. |
| 104 |
* ==================================================================== |
| 105 |
* |
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* This product includes cryptographic software written by Eric Young |
| 107 |
* (eay@cryptsoft.com). This product includes software written by Tim |
| 108 |
* Hudson (tjh@cryptsoft.com). |
| 109 |
* |
| 110 |
*/ |
| 111 |
|
| 112 |
#include <openssl/opensslconf.h> /* for OPENSSL_NO_DH */ |
| 113 |
#ifndef OPENSSL_NO_DH |
| 114 |
# include <stdio.h> |
| 115 |
# include <stdlib.h> |
| 116 |
# include <time.h> |
| 117 |
# include <string.h> |
| 118 |
# include "apps.h" |
| 119 |
# include <openssl/bio.h> |
| 120 |
# include <openssl/err.h> |
| 121 |
# include <openssl/bn.h> |
| 122 |
# include <openssl/dh.h> |
| 123 |
# include <openssl/x509.h> |
| 124 |
# include <openssl/pem.h> |
| 125 |
|
| 126 |
# ifndef OPENSSL_NO_DSA |
| 127 |
# include <openssl/dsa.h> |
| 128 |
# endif |
| 129 |
|
| 130 |
# undef PROG |
| 131 |
# define PROG dhparam_main |
| 132 |
|
| 133 |
# define DEFBITS 2048 |
| 134 |
|
| 135 |
/*- |
| 136 |
* -inform arg - input format - default PEM (DER or PEM) |
| 137 |
* -outform arg - output format - default PEM |
| 138 |
* -in arg - input file - default stdin |
| 139 |
* -out arg - output file - default stdout |
| 140 |
* -dsaparam - read or generate DSA parameters, convert to DH |
| 141 |
* -check - check the parameters are ok |
| 142 |
* -noout |
| 143 |
* -text |
| 144 |
* -C |
| 145 |
*/ |
| 146 |
|
| 147 |
static int MS_CALLBACK dh_cb(int p, int n, BN_GENCB *cb); |
| 148 |
|
| 149 |
int MAIN(int, char **); |
| 150 |
|
| 151 |
int MAIN(int argc, char **argv) |
| 152 |
{ |
| 153 |
DH *dh = NULL; |
| 154 |
int i, badops = 0, text = 0; |
| 155 |
# ifndef OPENSSL_NO_DSA |
| 156 |
int dsaparam = 0; |
| 157 |
# endif |
| 158 |
BIO *in = NULL, *out = NULL; |
| 159 |
int informat, outformat, check = 0, noout = 0, C = 0, ret = 1; |
| 160 |
char *infile, *outfile, *prog; |
| 161 |
char *inrand = NULL; |
| 162 |
char *engine = NULL; |
| 163 |
ENGINE *e = NULL; |
| 164 |
int num = 0, g = 0; |
| 165 |
|
| 166 |
apps_startup(); |
| 167 |
|
| 168 |
if (bio_err == NULL) |
| 169 |
if ((bio_err = BIO_new(BIO_s_file())) != NULL) |
| 170 |
BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); |
| 171 |
|
| 172 |
if (!load_config(bio_err, NULL)) |
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goto end; |
| 174 |
|
| 175 |
infile = NULL; |
| 176 |
outfile = NULL; |
| 177 |
informat = FORMAT_PEM; |
| 178 |
outformat = FORMAT_PEM; |
| 179 |
|
| 180 |
prog = argv[0]; |
| 181 |
argc--; |
| 182 |
argv++; |
| 183 |
while (argc >= 1) { |
| 184 |
if (strcmp(*argv, "-inform") == 0) { |
| 185 |
if (--argc < 1) |
| 186 |
goto bad; |
| 187 |
informat = str2fmt(*(++argv)); |
| 188 |
} else if (strcmp(*argv, "-outform") == 0) { |
| 189 |
if (--argc < 1) |
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goto bad; |
| 191 |
outformat = str2fmt(*(++argv)); |
| 192 |
} else if (strcmp(*argv, "-in") == 0) { |
| 193 |
if (--argc < 1) |
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goto bad; |
| 195 |
infile = *(++argv); |
| 196 |
} else if (strcmp(*argv, "-out") == 0) { |
| 197 |
if (--argc < 1) |
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goto bad; |
| 199 |
outfile = *(++argv); |
| 200 |
} |
| 201 |
# ifndef OPENSSL_NO_ENGINE |
| 202 |
else if (strcmp(*argv, "-engine") == 0) { |
| 203 |
if (--argc < 1) |
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goto bad; |
| 205 |
engine = *(++argv); |
| 206 |
} |
| 207 |
# endif |
| 208 |
else if (strcmp(*argv, "-check") == 0) |
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check = 1; |
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else if (strcmp(*argv, "-text") == 0) |
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text = 1; |
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# ifndef OPENSSL_NO_DSA |
| 213 |
else if (strcmp(*argv, "-dsaparam") == 0) |
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dsaparam = 1; |
| 215 |
# endif |
| 216 |
else if (strcmp(*argv, "-C") == 0) |
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C = 1; |
| 218 |
else if (strcmp(*argv, "-noout") == 0) |
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noout = 1; |
| 220 |
else if (strcmp(*argv, "-2") == 0) |
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g = 2; |
| 222 |
else if (strcmp(*argv, "-5") == 0) |
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g = 5; |
| 224 |
else if (strcmp(*argv, "-rand") == 0) { |
| 225 |
if (--argc < 1) |
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goto bad; |
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inrand = *(++argv); |
| 228 |
} else if (((sscanf(*argv, "%d", &num) == 0) || (num <= 0))) |
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goto bad; |
| 230 |
argv++; |
| 231 |
argc--; |
| 232 |
} |
| 233 |
|
| 234 |
if (badops) { |
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bad: |
| 236 |
BIO_printf(bio_err, "%s [options] [numbits]\n", prog); |
| 237 |
BIO_printf(bio_err, "where options are\n"); |
| 238 |
BIO_printf(bio_err, " -inform arg input format - one of DER PEM\n"); |
| 239 |
BIO_printf(bio_err, |
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" -outform arg output format - one of DER PEM\n"); |
| 241 |
BIO_printf(bio_err, " -in arg input file\n"); |
| 242 |
BIO_printf(bio_err, " -out arg output file\n"); |
| 243 |
# ifndef OPENSSL_NO_DSA |
| 244 |
BIO_printf(bio_err, |
| 245 |
" -dsaparam read or generate DSA parameters, convert to DH\n"); |
| 246 |
# endif |
| 247 |
BIO_printf(bio_err, " -check check the DH parameters\n"); |
| 248 |
BIO_printf(bio_err, |
| 249 |
" -text print a text form of the DH parameters\n"); |
| 250 |
BIO_printf(bio_err, " -C Output C code\n"); |
| 251 |
BIO_printf(bio_err, |
| 252 |
" -2 generate parameters using 2 as the generator value\n"); |
| 253 |
BIO_printf(bio_err, |
| 254 |
" -5 generate parameters using 5 as the generator value\n"); |
| 255 |
BIO_printf(bio_err, |
| 256 |
" numbits number of bits in to generate (default 2048)\n"); |
| 257 |
# ifndef OPENSSL_NO_ENGINE |
| 258 |
BIO_printf(bio_err, |
| 259 |
" -engine e use engine e, possibly a hardware device.\n"); |
| 260 |
# endif |
| 261 |
BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, |
| 262 |
LIST_SEPARATOR_CHAR); |
| 263 |
BIO_printf(bio_err, |
| 264 |
" - load the file (or the files in the directory) into\n"); |
| 265 |
BIO_printf(bio_err, " the random number generator\n"); |
| 266 |
BIO_printf(bio_err, " -noout no output\n"); |
| 267 |
goto end; |
| 268 |
} |
| 269 |
|
| 270 |
ERR_load_crypto_strings(); |
| 271 |
|
| 272 |
e = setup_engine(bio_err, engine, 0); |
| 273 |
|
| 274 |
if (g && !num) |
| 275 |
num = DEFBITS; |
| 276 |
|
| 277 |
# ifndef OPENSSL_NO_DSA |
| 278 |
if (dsaparam) { |
| 279 |
if (g) { |
| 280 |
BIO_printf(bio_err, |
| 281 |
"generator may not be chosen for DSA parameters\n"); |
| 282 |
goto end; |
| 283 |
} |
| 284 |
} else |
| 285 |
# endif |
| 286 |
{ |
| 287 |
/* DH parameters */ |
| 288 |
if (num && !g) |
| 289 |
g = 2; |
| 290 |
} |
| 291 |
|
| 292 |
if (num) { |
| 293 |
|
| 294 |
BN_GENCB cb; |
| 295 |
BN_GENCB_set(&cb, dh_cb, bio_err); |
| 296 |
if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) { |
| 297 |
BIO_printf(bio_err, |
| 298 |
"warning, not much extra random data, consider using the -rand option\n"); |
| 299 |
} |
| 300 |
if (inrand != NULL) |
| 301 |
BIO_printf(bio_err, "%ld semi-random bytes loaded\n", |
| 302 |
app_RAND_load_files(inrand)); |
| 303 |
|
| 304 |
# ifndef OPENSSL_NO_DSA |
| 305 |
if (dsaparam) { |
| 306 |
DSA *dsa = DSA_new(); |
| 307 |
|
| 308 |
BIO_printf(bio_err, |
| 309 |
"Generating DSA parameters, %d bit long prime\n", num); |
| 310 |
if (!dsa |
| 311 |
|| !DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, |
| 312 |
&cb)) { |
| 313 |
if (dsa) |
| 314 |
DSA_free(dsa); |
| 315 |
ERR_print_errors(bio_err); |
| 316 |
goto end; |
| 317 |
} |
| 318 |
|
| 319 |
dh = DSA_dup_DH(dsa); |
| 320 |
DSA_free(dsa); |
| 321 |
if (dh == NULL) { |
| 322 |
ERR_print_errors(bio_err); |
| 323 |
goto end; |
| 324 |
} |
| 325 |
} else |
| 326 |
# endif |
| 327 |
{ |
| 328 |
dh = DH_new(); |
| 329 |
BIO_printf(bio_err, |
| 330 |
"Generating DH parameters, %d bit long safe prime, generator %d\n", |
| 331 |
num, g); |
| 332 |
BIO_printf(bio_err, "This is going to take a long time\n"); |
| 333 |
if (!dh || !DH_generate_parameters_ex(dh, num, g, &cb)) { |
| 334 |
ERR_print_errors(bio_err); |
| 335 |
goto end; |
| 336 |
} |
| 337 |
} |
| 338 |
|
| 339 |
app_RAND_write_file(NULL, bio_err); |
| 340 |
} else { |
| 341 |
|
| 342 |
in = BIO_new(BIO_s_file()); |
| 343 |
if (in == NULL) { |
| 344 |
ERR_print_errors(bio_err); |
| 345 |
goto end; |
| 346 |
} |
| 347 |
if (infile == NULL) |
| 348 |
BIO_set_fp(in, stdin, BIO_NOCLOSE); |
| 349 |
else { |
| 350 |
if (BIO_read_filename(in, infile) <= 0) { |
| 351 |
perror(infile); |
| 352 |
goto end; |
| 353 |
} |
| 354 |
} |
| 355 |
|
| 356 |
if (informat != FORMAT_ASN1 && informat != FORMAT_PEM) { |
| 357 |
BIO_printf(bio_err, "bad input format specified\n"); |
| 358 |
goto end; |
| 359 |
} |
| 360 |
# ifndef OPENSSL_NO_DSA |
| 361 |
if (dsaparam) { |
| 362 |
DSA *dsa; |
| 363 |
|
| 364 |
if (informat == FORMAT_ASN1) |
| 365 |
dsa = d2i_DSAparams_bio(in, NULL); |
| 366 |
else /* informat == FORMAT_PEM */ |
| 367 |
dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL); |
| 368 |
|
| 369 |
if (dsa == NULL) { |
| 370 |
BIO_printf(bio_err, "unable to load DSA parameters\n"); |
| 371 |
ERR_print_errors(bio_err); |
| 372 |
goto end; |
| 373 |
} |
| 374 |
|
| 375 |
dh = DSA_dup_DH(dsa); |
| 376 |
DSA_free(dsa); |
| 377 |
if (dh == NULL) { |
| 378 |
ERR_print_errors(bio_err); |
| 379 |
goto end; |
| 380 |
} |
| 381 |
} else |
| 382 |
# endif |
| 383 |
{ |
| 384 |
if (informat == FORMAT_ASN1) { |
| 385 |
/* |
| 386 |
* We have no PEM header to determine what type of DH params it |
| 387 |
* is. We'll just try both. |
| 388 |
*/ |
| 389 |
dh = d2i_DHparams_bio(in, NULL); |
| 390 |
/* BIO_reset() returns 0 for success for file BIOs only!!! */ |
| 391 |
if (dh == NULL && BIO_reset(in) == 0) |
| 392 |
dh = d2i_DHxparams_bio(in, NULL); |
| 393 |
} else { |
| 394 |
/* informat == FORMAT_PEM */ |
| 395 |
dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL); |
| 396 |
} |
| 397 |
|
| 398 |
if (dh == NULL) { |
| 399 |
BIO_printf(bio_err, "unable to load DH parameters\n"); |
| 400 |
ERR_print_errors(bio_err); |
| 401 |
goto end; |
| 402 |
} |
| 403 |
} |
| 404 |
|
| 405 |
/* dh != NULL */ |
| 406 |
} |
| 407 |
|
| 408 |
out = BIO_new(BIO_s_file()); |
| 409 |
if (out == NULL) { |
| 410 |
ERR_print_errors(bio_err); |
| 411 |
goto end; |
| 412 |
} |
| 413 |
if (outfile == NULL) { |
| 414 |
BIO_set_fp(out, stdout, BIO_NOCLOSE); |
| 415 |
# ifdef OPENSSL_SYS_VMS |
| 416 |
{ |
| 417 |
BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| 418 |
out = BIO_push(tmpbio, out); |
| 419 |
} |
| 420 |
# endif |
| 421 |
} else { |
| 422 |
if (BIO_write_filename(out, outfile) <= 0) { |
| 423 |
perror(outfile); |
| 424 |
goto end; |
| 425 |
} |
| 426 |
} |
| 427 |
|
| 428 |
if (text) { |
| 429 |
DHparams_print(out, dh); |
| 430 |
} |
| 431 |
|
| 432 |
if (check) { |
| 433 |
if (!DH_check(dh, &i)) { |
| 434 |
ERR_print_errors(bio_err); |
| 435 |
goto end; |
| 436 |
} |
| 437 |
if (i & DH_CHECK_P_NOT_PRIME) |
| 438 |
printf("p value is not prime\n"); |
| 439 |
if (i & DH_CHECK_P_NOT_SAFE_PRIME) |
| 440 |
printf("p value is not a safe prime\n"); |
| 441 |
if (i & DH_UNABLE_TO_CHECK_GENERATOR) |
| 442 |
printf("unable to check the generator value\n"); |
| 443 |
if (i & DH_NOT_SUITABLE_GENERATOR) |
| 444 |
printf("the g value is not a generator\n"); |
| 445 |
if (i == 0) |
| 446 |
printf("DH parameters appear to be ok.\n"); |
| 447 |
} |
| 448 |
if (C) { |
| 449 |
unsigned char *data; |
| 450 |
int len, l, bits; |
| 451 |
|
| 452 |
len = BN_num_bytes(dh->p); |
| 453 |
bits = BN_num_bits(dh->p); |
| 454 |
data = (unsigned char *)OPENSSL_malloc(len); |
| 455 |
if (data == NULL) { |
| 456 |
perror("OPENSSL_malloc"); |
| 457 |
goto end; |
| 458 |
} |
| 459 |
printf("#ifndef HEADER_DH_H\n" |
| 460 |
"#include <openssl/dh.h>\n" "#endif\n"); |
| 461 |
printf("DH *get_dh%d()\n\t{\n", bits); |
| 462 |
|
| 463 |
l = BN_bn2bin(dh->p, data); |
| 464 |
printf("\tstatic unsigned char dh%d_p[]={", bits); |
| 465 |
for (i = 0; i < l; i++) { |
| 466 |
if ((i % 12) == 0) |
| 467 |
printf("\n\t\t"); |
| 468 |
printf("0x%02X,", data[i]); |
| 469 |
} |
| 470 |
printf("\n\t\t};\n"); |
| 471 |
|
| 472 |
l = BN_bn2bin(dh->g, data); |
| 473 |
printf("\tstatic unsigned char dh%d_g[]={", bits); |
| 474 |
for (i = 0; i < l; i++) { |
| 475 |
if ((i % 12) == 0) |
| 476 |
printf("\n\t\t"); |
| 477 |
printf("0x%02X,", data[i]); |
| 478 |
} |
| 479 |
printf("\n\t\t};\n"); |
| 480 |
|
| 481 |
printf("\tDH *dh;\n\n"); |
| 482 |
printf("\tif ((dh=DH_new()) == NULL) return(NULL);\n"); |
| 483 |
printf("\tdh->p=BN_bin2bn(dh%d_p,sizeof(dh%d_p),NULL);\n", |
| 484 |
bits, bits); |
| 485 |
printf("\tdh->g=BN_bin2bn(dh%d_g,sizeof(dh%d_g),NULL);\n", |
| 486 |
bits, bits); |
| 487 |
printf("\tif ((dh->p == NULL) || (dh->g == NULL))\n"); |
| 488 |
printf("\t\t{ DH_free(dh); return(NULL); }\n"); |
| 489 |
if (dh->length) |
| 490 |
printf("\tdh->length = %ld;\n", dh->length); |
| 491 |
printf("\treturn(dh);\n\t}\n"); |
| 492 |
OPENSSL_free(data); |
| 493 |
} |
| 494 |
|
| 495 |
if (!noout) { |
| 496 |
if (outformat == FORMAT_ASN1) { |
| 497 |
if (dh->q != NULL) |
| 498 |
i = i2d_DHxparams_bio(out, dh); |
| 499 |
else |
| 500 |
i = i2d_DHparams_bio(out, dh); |
| 501 |
} else if (outformat == FORMAT_PEM) { |
| 502 |
if (dh->q != NULL) |
| 503 |
i = PEM_write_bio_DHxparams(out, dh); |
| 504 |
else |
| 505 |
i = PEM_write_bio_DHparams(out, dh); |
| 506 |
} else { |
| 507 |
BIO_printf(bio_err, "bad output format specified for outfile\n"); |
| 508 |
goto end; |
| 509 |
} |
| 510 |
if (!i) { |
| 511 |
BIO_printf(bio_err, "unable to write DH parameters\n"); |
| 512 |
ERR_print_errors(bio_err); |
| 513 |
goto end; |
| 514 |
} |
| 515 |
} |
| 516 |
ret = 0; |
| 517 |
end: |
| 518 |
if (in != NULL) |
| 519 |
BIO_free(in); |
| 520 |
if (out != NULL) |
| 521 |
BIO_free_all(out); |
| 522 |
if (dh != NULL) |
| 523 |
DH_free(dh); |
| 524 |
release_engine(e); |
| 525 |
apps_shutdown(); |
| 526 |
OPENSSL_EXIT(ret); |
| 527 |
} |
| 528 |
|
| 529 |
/* dh_cb is identical to dsa_cb in apps/dsaparam.c */ |
| 530 |
static int MS_CALLBACK dh_cb(int p, int n, BN_GENCB *cb) |
| 531 |
{ |
| 532 |
char c = '*'; |
| 533 |
|
| 534 |
if (p == 0) |
| 535 |
c = '.'; |
| 536 |
if (p == 1) |
| 537 |
c = '+'; |
| 538 |
if (p == 2) |
| 539 |
c = '*'; |
| 540 |
if (p == 3) |
| 541 |
c = '\n'; |
| 542 |
BIO_write(cb->arg, &c, 1); |
| 543 |
(void)BIO_flush(cb->arg); |
| 544 |
# ifdef LINT |
| 545 |
p = n; |
| 546 |
# endif |
| 547 |
return 1; |
| 548 |
} |
| 549 |
|
| 550 |
#else /* !OPENSSL_NO_DH */ |
| 551 |
|
| 552 |
# if PEDANTIC |
| 553 |
static void *dummy = &dummy; |
| 554 |
# endif |
| 555 |
|
| 556 |
#endif |
