/* $OpenBSD: gendsa.c,v 1.27 2014/06/12 15:49:27 deraadt Exp $ */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ #include /* for OPENSSL_NO_DSA */ #include #include #include #include #include "apps.h" #include #include #include #include #include #include #define DEFBITS 512 int gendsa_main(int, char **); int gendsa_main(int argc, char **argv) { DSA *dsa = NULL; int ret = 1; char *outfile = NULL; char *dsaparams = NULL; char *passargout = NULL, *passout = NULL; BIO *out = NULL, *in = NULL; const EVP_CIPHER *enc = NULL; #ifndef OPENSSL_NO_ENGINE char *engine = NULL; #endif if (!load_config(bio_err, NULL)) goto end; argv++; argc--; for (;;) { if (argc <= 0) break; if (strcmp(*argv, "-out") == 0) { if (--argc < 1) goto bad; outfile = *(++argv); } else if (strcmp(*argv, "-passout") == 0) { if (--argc < 1) goto bad; passargout = *(++argv); } #ifndef OPENSSL_NO_ENGINE else if (strcmp(*argv, "-engine") == 0) { if (--argc < 1) goto bad; engine = *(++argv); } #endif else if (strcmp(*argv, "-") == 0) goto bad; #ifndef OPENSSL_NO_DES else if (strcmp(*argv, "-des") == 0) enc = EVP_des_cbc(); else if (strcmp(*argv, "-des3") == 0) enc = EVP_des_ede3_cbc(); #endif #ifndef OPENSSL_NO_IDEA else if (strcmp(*argv, "-idea") == 0) enc = EVP_idea_cbc(); #endif #ifndef OPENSSL_NO_AES else if (strcmp(*argv, "-aes128") == 0) enc = EVP_aes_128_cbc(); else if (strcmp(*argv, "-aes192") == 0) enc = EVP_aes_192_cbc(); else if (strcmp(*argv, "-aes256") == 0) enc = EVP_aes_256_cbc(); #endif #ifndef OPENSSL_NO_CAMELLIA else if (strcmp(*argv, "-camellia128") == 0) enc = EVP_camellia_128_cbc(); else if (strcmp(*argv, "-camellia192") == 0) enc = EVP_camellia_192_cbc(); else if (strcmp(*argv, "-camellia256") == 0) enc = EVP_camellia_256_cbc(); #endif else if (**argv != '-' && dsaparams == NULL) { dsaparams = *argv; } else goto bad; argv++; argc--; } if (dsaparams == NULL) { bad: BIO_printf(bio_err, "usage: gendsa [args] dsaparam-file\n"); BIO_printf(bio_err, " -out file - output the key to 'file'\n"); #ifndef OPENSSL_NO_DES BIO_printf(bio_err, " -des - encrypt the generated key with DES in cbc mode\n"); BIO_printf(bio_err, " -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); #endif #ifndef OPENSSL_NO_IDEA BIO_printf(bio_err, " -idea - encrypt the generated key with IDEA in cbc mode\n"); #endif #ifndef OPENSSL_NO_AES BIO_printf(bio_err, " -aes128, -aes192, -aes256\n"); BIO_printf(bio_err, " encrypt PEM output with cbc aes\n"); #endif #ifndef OPENSSL_NO_CAMELLIA BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n"); BIO_printf(bio_err, " encrypt PEM output with cbc camellia\n"); #endif #ifndef OPENSSL_NO_ENGINE BIO_printf(bio_err, " -engine e - use engine e, possibly a hardware device.\n"); #endif BIO_printf(bio_err, " dsaparam-file\n"); BIO_printf(bio_err, " - a DSA parameter file as generated by the dsaparam command\n"); goto end; } #ifndef OPENSSL_NO_ENGINE setup_engine(bio_err, engine, 0); #endif if (!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { BIO_printf(bio_err, "Error getting password\n"); goto end; } in = BIO_new(BIO_s_file()); if (!(BIO_read_filename(in, dsaparams))) { perror(dsaparams); goto end; } if ((dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL)) == NULL) { BIO_printf(bio_err, "unable to load DSA parameter file\n"); goto end; } BIO_free(in); in = NULL; out = BIO_new(BIO_s_file()); if (out == NULL) goto end; if (outfile == NULL) { BIO_set_fp(out, stdout, BIO_NOCLOSE); } else { if (BIO_write_filename(out, outfile) <= 0) { perror(outfile); goto end; } } BIO_printf(bio_err, "Generating DSA key, %d bits\n", BN_num_bits(dsa->p)); if (!DSA_generate_key(dsa)) goto end; if (!PEM_write_bio_DSAPrivateKey(out, dsa, enc, NULL, 0, NULL, passout)) goto end; ret = 0; end: if (ret != 0) ERR_print_errors(bio_err); if (in != NULL) BIO_free(in); if (out != NULL) BIO_free_all(out); if (dsa != NULL) DSA_free(dsa); free(passout); return (ret); }