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/* apps/genpkey.c */ |
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/* |
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* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project |
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* 2006 |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 2006 The OpenSSL Project. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* licensing@OpenSSL.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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#include <stdio.h> |
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#include <string.h> |
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#include "apps.h" |
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#include <openssl/pem.h> |
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#include <openssl/err.h> |
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#include <openssl/evp.h> |
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#ifndef OPENSSL_NO_ENGINE |
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# include <openssl/engine.h> |
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#endif |
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|
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static int init_keygen_file(BIO *err, EVP_PKEY_CTX **pctx, |
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const char *file, ENGINE *e); |
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static int genpkey_cb(EVP_PKEY_CTX *ctx); |
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|
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#define PROG genpkey_main |
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|
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int MAIN(int, char **); |
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|
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int MAIN(int argc, char **argv) |
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{ |
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ENGINE *e = NULL; |
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char **args, *outfile = NULL; |
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char *passarg = NULL; |
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BIO *in = NULL, *out = NULL; |
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const EVP_CIPHER *cipher = NULL; |
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int outformat; |
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int text = 0; |
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EVP_PKEY *pkey = NULL; |
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EVP_PKEY_CTX *ctx = NULL; |
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char *pass = NULL; |
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int badarg = 0; |
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int ret = 1, rv; |
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|
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int do_param = 0; |
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|
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if (bio_err == NULL) |
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bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); |
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|
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if (!load_config(bio_err, NULL)) |
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goto end; |
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|
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outformat = FORMAT_PEM; |
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|
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ERR_load_crypto_strings(); |
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OpenSSL_add_all_algorithms(); |
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args = argv + 1; |
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while (!badarg && *args && *args[0] == '-') { |
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if (!strcmp(*args, "-outform")) { |
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if (args[1]) { |
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args++; |
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outformat = str2fmt(*args); |
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} else |
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badarg = 1; |
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} else if (!strcmp(*args, "-pass")) { |
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if (!args[1]) |
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goto bad; |
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passarg = *(++args); |
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} |
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#ifndef OPENSSL_NO_ENGINE |
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else if (strcmp(*args, "-engine") == 0) { |
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if (!args[1]) |
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goto bad; |
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e = setup_engine(bio_err, *(++args), 0); |
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} |
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#endif |
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else if (!strcmp(*args, "-paramfile")) { |
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if (!args[1]) |
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goto bad; |
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args++; |
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if (do_param == 1) |
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goto bad; |
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if (!init_keygen_file(bio_err, &ctx, *args, e)) |
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goto end; |
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} else if (!strcmp(*args, "-out")) { |
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if (args[1]) { |
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args++; |
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outfile = *args; |
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} else |
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badarg = 1; |
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} else if (strcmp(*args, "-algorithm") == 0) { |
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if (!args[1]) |
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goto bad; |
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if (!init_gen_str(bio_err, &ctx, *(++args), e, do_param)) |
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goto end; |
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} else if (strcmp(*args, "-pkeyopt") == 0) { |
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if (!args[1]) |
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goto bad; |
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if (!ctx) { |
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BIO_puts(bio_err, "No keytype specified\n"); |
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goto bad; |
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} else if (pkey_ctrl_string(ctx, *(++args)) <= 0) { |
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BIO_puts(bio_err, "parameter setting error\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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} else if (strcmp(*args, "-genparam") == 0) { |
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if (ctx) |
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goto bad; |
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do_param = 1; |
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} else if (strcmp(*args, "-text") == 0) |
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text = 1; |
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else { |
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cipher = EVP_get_cipherbyname(*args + 1); |
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if (!cipher) { |
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BIO_printf(bio_err, "Unknown cipher %s\n", *args + 1); |
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badarg = 1; |
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} |
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if (do_param == 1) |
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badarg = 1; |
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} |
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args++; |
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} |
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|
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if (!ctx) |
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badarg = 1; |
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|
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if (badarg) { |
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bad: |
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BIO_printf(bio_err, "Usage: genpkey [options]\n"); |
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BIO_printf(bio_err, "where options may be\n"); |
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BIO_printf(bio_err, "-out file output file\n"); |
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BIO_printf(bio_err, |
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"-outform X output format (DER or PEM)\n"); |
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BIO_printf(bio_err, |
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"-pass arg output file pass phrase source\n"); |
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BIO_printf(bio_err, |
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"-<cipher> use cipher <cipher> to encrypt the key\n"); |
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#ifndef OPENSSL_NO_ENGINE |
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BIO_printf(bio_err, |
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"-engine e use engine e, possibly a hardware device.\n"); |
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#endif |
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BIO_printf(bio_err, "-paramfile file parameters file\n"); |
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BIO_printf(bio_err, "-algorithm alg the public key algorithm\n"); |
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BIO_printf(bio_err, |
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"-pkeyopt opt:value set the public key algorithm option <opt>\n" |
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" to value <value>\n"); |
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BIO_printf(bio_err, |
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"-genparam generate parameters, not key\n"); |
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BIO_printf(bio_err, "-text print the in text\n"); |
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BIO_printf(bio_err, |
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"NB: options order may be important! See the manual page.\n"); |
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goto end; |
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} |
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|
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if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { |
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BIO_puts(bio_err, "Error getting password\n"); |
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goto end; |
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} |
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|
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if (outfile) { |
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if (!(out = BIO_new_file(outfile, "wb"))) { |
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BIO_printf(bio_err, "Can't open output file %s\n", outfile); |
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goto end; |
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} |
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} else { |
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out = BIO_new_fp(stdout, BIO_NOCLOSE); |
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#ifdef OPENSSL_SYS_VMS |
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{ |
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BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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out = BIO_push(tmpbio, out); |
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} |
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#endif |
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} |
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|
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EVP_PKEY_CTX_set_cb(ctx, genpkey_cb); |
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EVP_PKEY_CTX_set_app_data(ctx, bio_err); |
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|
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if (do_param) { |
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if (EVP_PKEY_paramgen(ctx, &pkey) <= 0) { |
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BIO_puts(bio_err, "Error generating parameters\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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} else { |
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if (EVP_PKEY_keygen(ctx, &pkey) <= 0) { |
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BIO_puts(bio_err, "Error generating key\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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} |
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|
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if (do_param) |
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rv = PEM_write_bio_Parameters(out, pkey); |
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else if (outformat == FORMAT_PEM) |
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rv = PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0, NULL, pass); |
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else if (outformat == FORMAT_ASN1) |
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rv = i2d_PrivateKey_bio(out, pkey); |
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else { |
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BIO_printf(bio_err, "Bad format specified for key\n"); |
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goto end; |
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} |
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|
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if (rv <= 0) { |
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BIO_puts(bio_err, "Error writing key\n"); |
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ERR_print_errors(bio_err); |
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} |
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|
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if (text) { |
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if (do_param) |
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rv = EVP_PKEY_print_params(out, pkey, 0, NULL); |
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else |
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rv = EVP_PKEY_print_private(out, pkey, 0, NULL); |
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|
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if (rv <= 0) { |
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BIO_puts(bio_err, "Error printing key\n"); |
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ERR_print_errors(bio_err); |
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} |
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} |
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|
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ret = 0; |
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|
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end: |
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if (pkey) |
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EVP_PKEY_free(pkey); |
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if (ctx) |
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EVP_PKEY_CTX_free(ctx); |
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if (out) |
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BIO_free_all(out); |
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BIO_free(in); |
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release_engine(e); |
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if (pass) |
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OPENSSL_free(pass); |
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return ret; |
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} |
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|
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static int init_keygen_file(BIO *err, EVP_PKEY_CTX **pctx, |
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const char *file, ENGINE *e) |
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{ |
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BIO *pbio; |
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EVP_PKEY *pkey = NULL; |
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EVP_PKEY_CTX *ctx = NULL; |
290 |
if (*pctx) { |
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BIO_puts(err, "Parameters already set!\n"); |
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return 0; |
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} |
294 |
|
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pbio = BIO_new_file(file, "r"); |
296 |
if (!pbio) { |
297 |
BIO_printf(err, "Can't open parameter file %s\n", file); |
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return 0; |
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} |
300 |
|
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pkey = PEM_read_bio_Parameters(pbio, NULL); |
302 |
BIO_free(pbio); |
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|
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if (!pkey) { |
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BIO_printf(bio_err, "Error reading parameter file %s\n", file); |
306 |
return 0; |
307 |
} |
308 |
|
309 |
ctx = EVP_PKEY_CTX_new(pkey, e); |
310 |
if (!ctx) |
311 |
goto err; |
312 |
if (EVP_PKEY_keygen_init(ctx) <= 0) |
313 |
goto err; |
314 |
EVP_PKEY_free(pkey); |
315 |
*pctx = ctx; |
316 |
return 1; |
317 |
|
318 |
err: |
319 |
BIO_puts(err, "Error initializing context\n"); |
320 |
ERR_print_errors(err); |
321 |
if (ctx) |
322 |
EVP_PKEY_CTX_free(ctx); |
323 |
if (pkey) |
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EVP_PKEY_free(pkey); |
325 |
return 0; |
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|
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} |
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|
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int init_gen_str(BIO *err, EVP_PKEY_CTX **pctx, |
330 |
const char *algname, ENGINE *e, int do_param) |
331 |
{ |
332 |
EVP_PKEY_CTX *ctx = NULL; |
333 |
const EVP_PKEY_ASN1_METHOD *ameth; |
334 |
ENGINE *tmpeng = NULL; |
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int pkey_id; |
336 |
|
337 |
if (*pctx) { |
338 |
BIO_puts(err, "Algorithm already set!\n"); |
339 |
return 0; |
340 |
} |
341 |
|
342 |
ameth = EVP_PKEY_asn1_find_str(&tmpeng, algname, -1); |
343 |
|
344 |
#ifndef OPENSSL_NO_ENGINE |
345 |
if (!ameth && e) |
346 |
ameth = ENGINE_get_pkey_asn1_meth_str(e, algname, -1); |
347 |
#endif |
348 |
|
349 |
if (!ameth) { |
350 |
BIO_printf(bio_err, "Algorithm %s not found\n", algname); |
351 |
return 0; |
352 |
} |
353 |
|
354 |
ERR_clear_error(); |
355 |
|
356 |
EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth); |
357 |
#ifndef OPENSSL_NO_ENGINE |
358 |
if (tmpeng) |
359 |
ENGINE_finish(tmpeng); |
360 |
#endif |
361 |
ctx = EVP_PKEY_CTX_new_id(pkey_id, e); |
362 |
|
363 |
if (!ctx) |
364 |
goto err; |
365 |
if (do_param) { |
366 |
if (EVP_PKEY_paramgen_init(ctx) <= 0) |
367 |
goto err; |
368 |
} else { |
369 |
if (EVP_PKEY_keygen_init(ctx) <= 0) |
370 |
goto err; |
371 |
} |
372 |
|
373 |
*pctx = ctx; |
374 |
return 1; |
375 |
|
376 |
err: |
377 |
BIO_printf(err, "Error initializing %s context\n", algname); |
378 |
ERR_print_errors(err); |
379 |
if (ctx) |
380 |
EVP_PKEY_CTX_free(ctx); |
381 |
return 0; |
382 |
|
383 |
} |
384 |
|
385 |
static int genpkey_cb(EVP_PKEY_CTX *ctx) |
386 |
{ |
387 |
char c = '*'; |
388 |
BIO *b = EVP_PKEY_CTX_get_app_data(ctx); |
389 |
int p; |
390 |
p = EVP_PKEY_CTX_get_keygen_info(ctx, 0); |
391 |
if (p == 0) |
392 |
c = '.'; |
393 |
if (p == 1) |
394 |
c = '+'; |
395 |
if (p == 2) |
396 |
c = '*'; |
397 |
if (p == 3) |
398 |
c = '\n'; |
399 |
BIO_write(b, &c, 1); |
400 |
(void)BIO_flush(b); |
401 |
#ifdef LINT |
402 |
p = n; |
403 |
#endif |
404 |
return 1; |
405 |
} |