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