Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 |