1 /* apps/gendsa.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 #include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */ 60 #ifndef OPENSSL_NO_DSA 61 # include <stdio.h> 62 # include <string.h> 63 # include <sys/types.h> 64 # include <sys/stat.h> 65 # include "apps.h" 66 # include <openssl/bio.h> 67 # include <openssl/err.h> 68 # include <openssl/bn.h> 69 # include <openssl/dsa.h> 70 # include <openssl/x509.h> 71 # include <openssl/pem.h> 72 73 # define DEFBITS 512 74 # undef PROG 75 # define PROG gendsa_main 76 77 int MAIN(int, char **); 78 79 int MAIN(int argc, char **argv) 80 { 81 DSA *dsa = NULL; 82 int ret = 1; 83 char *outfile = NULL; 84 char *inrand = NULL, *dsaparams = NULL; 85 char *passargout = NULL, *passout = NULL; 86 BIO *out = NULL, *in = NULL; 87 const EVP_CIPHER *enc = NULL; 88 # ifndef OPENSSL_NO_ENGINE 89 char *engine = NULL; 90 # endif 91 92 apps_startup(); 93 94 if (bio_err == NULL) 95 if ((bio_err = BIO_new(BIO_s_file())) != NULL) 96 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); 97 98 if (!load_config(bio_err, NULL)) 99 goto end; 100 101 argv++; 102 argc--; 103 for (;;) { 104 if (argc <= 0) 105 break; 106 if (strcmp(*argv, "-out") == 0) { 107 if (--argc < 1) 108 goto bad; 109 outfile = *(++argv); 110 } else if (strcmp(*argv, "-passout") == 0) { 111 if (--argc < 1) 112 goto bad; 113 passargout = *(++argv); 114 } 115 # ifndef OPENSSL_NO_ENGINE 116 else if (strcmp(*argv, "-engine") == 0) { 117 if (--argc < 1) 118 goto bad; 119 engine = *(++argv); 120 } 121 # endif 122 else if (strcmp(*argv, "-rand") == 0) { 123 if (--argc < 1) 124 goto bad; 125 inrand = *(++argv); 126 } else if (strcmp(*argv, "-") == 0) 127 goto bad; 128 # ifndef OPENSSL_NO_DES 129 else if (strcmp(*argv, "-des") == 0) 130 enc = EVP_des_cbc(); 131 else if (strcmp(*argv, "-des3") == 0) 132 enc = EVP_des_ede3_cbc(); 133 # endif 134 # ifndef OPENSSL_NO_IDEA 135 else if (strcmp(*argv, "-idea") == 0) 136 enc = EVP_idea_cbc(); 137 # endif 138 # ifndef OPENSSL_NO_SEED 139 else if (strcmp(*argv, "-seed") == 0) 140 enc = EVP_seed_cbc(); 141 # endif 142 # ifndef OPENSSL_NO_AES 143 else if (strcmp(*argv, "-aes128") == 0) 144 enc = EVP_aes_128_cbc(); 145 else if (strcmp(*argv, "-aes192") == 0) 146 enc = EVP_aes_192_cbc(); 147 else if (strcmp(*argv, "-aes256") == 0) 148 enc = EVP_aes_256_cbc(); 149 # endif 150 # ifndef OPENSSL_NO_CAMELLIA 151 else if (strcmp(*argv, "-camellia128") == 0) 152 enc = EVP_camellia_128_cbc(); 153 else if (strcmp(*argv, "-camellia192") == 0) 154 enc = EVP_camellia_192_cbc(); 155 else if (strcmp(*argv, "-camellia256") == 0) 156 enc = EVP_camellia_256_cbc(); 157 # endif 158 else if (**argv != '-' && dsaparams == NULL) { 159 dsaparams = *argv; 160 } else 161 goto bad; 162 argv++; 163 argc--; 164 } 165 166 if (dsaparams == NULL) { 167 bad: 168 BIO_printf(bio_err, "usage: gendsa [args] dsaparam-file\n"); 169 BIO_printf(bio_err, " -out file - output the key to 'file'\n"); 170 # ifndef OPENSSL_NO_DES 171 BIO_printf(bio_err, 172 " -des - encrypt the generated key with DES in cbc mode\n"); 173 BIO_printf(bio_err, 174 " -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); 175 # endif 176 # ifndef OPENSSL_NO_IDEA 177 BIO_printf(bio_err, 178 " -idea - encrypt the generated key with IDEA in cbc mode\n"); 179 # endif 180 # ifndef OPENSSL_NO_SEED 181 BIO_printf(bio_err, " -seed\n"); 182 BIO_printf(bio_err, 183 " encrypt PEM output with cbc seed\n"); 184 # endif 185 # ifndef OPENSSL_NO_AES 186 BIO_printf(bio_err, " -aes128, -aes192, -aes256\n"); 187 BIO_printf(bio_err, 188 " encrypt PEM output with cbc aes\n"); 189 # endif 190 # ifndef OPENSSL_NO_CAMELLIA 191 BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n"); 192 BIO_printf(bio_err, 193 " encrypt PEM output with cbc camellia\n"); 194 # endif 195 # ifndef OPENSSL_NO_ENGINE 196 BIO_printf(bio_err, 197 " -engine e - use engine e, possibly a hardware device.\n"); 198 # endif 199 BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, 200 LIST_SEPARATOR_CHAR); 201 BIO_printf(bio_err, 202 " - load the file (or the files in the directory) into\n"); 203 BIO_printf(bio_err, " the random number generator\n"); 204 BIO_printf(bio_err, " dsaparam-file\n"); 205 BIO_printf(bio_err, 206 " - a DSA parameter file as generated by the dsaparam command\n"); 207 goto end; 208 } 209 # ifndef OPENSSL_NO_ENGINE 210 setup_engine(bio_err, engine, 0); 211 # endif 212 213 if (!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { 214 BIO_printf(bio_err, "Error getting password\n"); 215 goto end; 216 } 217 218 in = BIO_new(BIO_s_file()); 219 if (!(BIO_read_filename(in, dsaparams))) { 220 perror(dsaparams); 221 goto end; 222 } 223 224 if ((dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL)) == NULL) { 225 BIO_printf(bio_err, "unable to load DSA parameter file\n"); 226 goto end; 227 } 228 BIO_free(in); 229 in = NULL; 230 231 out = BIO_new(BIO_s_file()); 232 if (out == NULL) 233 goto end; 234 235 if (outfile == NULL) { 236 BIO_set_fp(out, stdout, BIO_NOCLOSE); 237 # ifdef OPENSSL_SYS_VMS 238 { 239 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 240 out = BIO_push(tmpbio, out); 241 } 242 # endif 243 } else { 244 if (BIO_write_filename(out, outfile) <= 0) { 245 perror(outfile); 246 goto end; 247 } 248 } 249 250 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) { 251 BIO_printf(bio_err, 252 "warning, not much extra random data, consider using the -rand option\n"); 253 } 254 if (inrand != NULL) 255 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 256 app_RAND_load_files(inrand)); 257 258 BIO_printf(bio_err, "Generating DSA key, %d bits\n", BN_num_bits(dsa->p)); 259 if (!DSA_generate_key(dsa)) 260 goto end; 261 262 app_RAND_write_file(NULL, bio_err); 263 264 if (!PEM_write_bio_DSAPrivateKey(out, dsa, enc, NULL, 0, NULL, passout)) 265 goto end; 266 ret = 0; 267 end: 268 if (ret != 0) 269 ERR_print_errors(bio_err); 270 if (in != NULL) 271 BIO_free(in); 272 if (out != NULL) 273 BIO_free_all(out); 274 if (dsa != NULL) 275 DSA_free(dsa); 276 if (passout) 277 OPENSSL_free(passout); 278 apps_shutdown(); 279 OPENSSL_EXIT(ret); 280 } 281 #else /* !OPENSSL_NO_DSA */ 282 283 # if PEDANTIC 284 static void *dummy = &dummy; 285 # endif 286 287 #endif 288