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