Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* apps/genrsa.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> |
| 60 | /* Until the key-gen callbacks are modified to use newer prototypes, we allow |
| 61 | * deprecated functions for openssl-internal code */ |
| 62 | #ifdef OPENSSL_NO_DEPRECATED |
| 63 | #undef OPENSSL_NO_DEPRECATED |
| 64 | #endif |
| 65 | |
| 66 | #ifndef OPENSSL_NO_RSA |
| 67 | #include <stdio.h> |
| 68 | #include <string.h> |
| 69 | #include <sys/types.h> |
| 70 | #include <sys/stat.h> |
| 71 | #include "apps.h" |
| 72 | #include <openssl/bio.h> |
| 73 | #include <openssl/err.h> |
| 74 | #include <openssl/bn.h> |
| 75 | #include <openssl/rsa.h> |
| 76 | #include <openssl/evp.h> |
| 77 | #include <openssl/x509.h> |
| 78 | #include <openssl/pem.h> |
| 79 | #include <openssl/rand.h> |
| 80 | |
| 81 | #define DEFBITS 512 |
| 82 | #undef PROG |
| 83 | #define PROG genrsa_main |
| 84 | |
| 85 | static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb); |
| 86 | |
| 87 | int MAIN(int, char **); |
| 88 | |
| 89 | int MAIN(int argc, char **argv) |
| 90 | { |
| 91 | BN_GENCB cb; |
| 92 | #ifndef OPENSSL_NO_ENGINE |
| 93 | ENGINE *e = NULL; |
| 94 | #endif |
| 95 | int ret=1; |
| 96 | int i,num=DEFBITS; |
| 97 | long l; |
| 98 | const EVP_CIPHER *enc=NULL; |
| 99 | unsigned long f4=RSA_F4; |
| 100 | char *outfile=NULL; |
| 101 | char *passargout = NULL, *passout = NULL; |
| 102 | #ifndef OPENSSL_NO_ENGINE |
| 103 | char *engine=NULL; |
| 104 | #endif |
| 105 | char *inrand=NULL; |
| 106 | BIO *out=NULL; |
| 107 | BIGNUM *bn = BN_new(); |
| 108 | RSA *rsa = NULL; |
| 109 | |
| 110 | if(!bn) goto err; |
| 111 | |
| 112 | apps_startup(); |
| 113 | BN_GENCB_set(&cb, genrsa_cb, bio_err); |
| 114 | |
| 115 | if (bio_err == NULL) |
| 116 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
| 117 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
| 118 | |
| 119 | if (!load_config(bio_err, NULL)) |
| 120 | goto err; |
| 121 | if ((out=BIO_new(BIO_s_file())) == NULL) |
| 122 | { |
| 123 | BIO_printf(bio_err,"unable to create BIO for output\n"); |
| 124 | goto err; |
| 125 | } |
| 126 | |
| 127 | argv++; |
| 128 | argc--; |
| 129 | for (;;) |
| 130 | { |
| 131 | if (argc <= 0) break; |
| 132 | if (strcmp(*argv,"-out") == 0) |
| 133 | { |
| 134 | if (--argc < 1) goto bad; |
| 135 | outfile= *(++argv); |
| 136 | } |
| 137 | else if (strcmp(*argv,"-3") == 0) |
| 138 | f4=3; |
| 139 | else if (strcmp(*argv,"-F4") == 0 || strcmp(*argv,"-f4") == 0) |
| 140 | f4=RSA_F4; |
| 141 | #ifndef OPENSSL_NO_ENGINE |
| 142 | else if (strcmp(*argv,"-engine") == 0) |
| 143 | { |
| 144 | if (--argc < 1) goto bad; |
| 145 | engine= *(++argv); |
| 146 | } |
| 147 | #endif |
| 148 | else if (strcmp(*argv,"-rand") == 0) |
| 149 | { |
| 150 | if (--argc < 1) goto bad; |
| 151 | inrand= *(++argv); |
| 152 | } |
| 153 | #ifndef OPENSSL_NO_DES |
| 154 | else if (strcmp(*argv,"-des") == 0) |
| 155 | enc=EVP_des_cbc(); |
| 156 | else if (strcmp(*argv,"-des3") == 0) |
| 157 | enc=EVP_des_ede3_cbc(); |
| 158 | #endif |
| 159 | #ifndef OPENSSL_NO_IDEA |
| 160 | else if (strcmp(*argv,"-idea") == 0) |
| 161 | enc=EVP_idea_cbc(); |
| 162 | #endif |
| 163 | #ifndef OPENSSL_NO_SEED |
| 164 | else if (strcmp(*argv,"-seed") == 0) |
| 165 | enc=EVP_seed_cbc(); |
| 166 | #endif |
| 167 | #ifndef OPENSSL_NO_AES |
| 168 | else if (strcmp(*argv,"-aes128") == 0) |
| 169 | enc=EVP_aes_128_cbc(); |
| 170 | else if (strcmp(*argv,"-aes192") == 0) |
| 171 | enc=EVP_aes_192_cbc(); |
| 172 | else if (strcmp(*argv,"-aes256") == 0) |
| 173 | enc=EVP_aes_256_cbc(); |
| 174 | #endif |
| 175 | #ifndef OPENSSL_NO_CAMELLIA |
| 176 | else if (strcmp(*argv,"-camellia128") == 0) |
| 177 | enc=EVP_camellia_128_cbc(); |
| 178 | else if (strcmp(*argv,"-camellia192") == 0) |
| 179 | enc=EVP_camellia_192_cbc(); |
| 180 | else if (strcmp(*argv,"-camellia256") == 0) |
| 181 | enc=EVP_camellia_256_cbc(); |
| 182 | #endif |
| 183 | else if (strcmp(*argv,"-passout") == 0) |
| 184 | { |
| 185 | if (--argc < 1) goto bad; |
| 186 | passargout= *(++argv); |
| 187 | } |
| 188 | else |
| 189 | break; |
| 190 | argv++; |
| 191 | argc--; |
| 192 | } |
| 193 | if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0))) |
| 194 | { |
| 195 | bad: |
| 196 | BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n"); |
| 197 | BIO_printf(bio_err," -des encrypt the generated key with DES in cbc mode\n"); |
| 198 | BIO_printf(bio_err," -des3 encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); |
| 199 | #ifndef OPENSSL_NO_IDEA |
| 200 | BIO_printf(bio_err," -idea encrypt the generated key with IDEA in cbc mode\n"); |
| 201 | #endif |
| 202 | #ifndef OPENSSL_NO_SEED |
| 203 | BIO_printf(bio_err," -seed\n"); |
| 204 | BIO_printf(bio_err," encrypt PEM output with cbc seed\n"); |
| 205 | #endif |
| 206 | #ifndef OPENSSL_NO_AES |
| 207 | BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); |
| 208 | BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); |
| 209 | #endif |
| 210 | #ifndef OPENSSL_NO_CAMELLIA |
| 211 | BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n"); |
| 212 | BIO_printf(bio_err," encrypt PEM output with cbc camellia\n"); |
| 213 | #endif |
| 214 | BIO_printf(bio_err," -out file output the key to 'file\n"); |
| 215 | BIO_printf(bio_err," -passout arg output file pass phrase source\n"); |
| 216 | BIO_printf(bio_err," -f4 use F4 (0x10001) for the E value\n"); |
| 217 | BIO_printf(bio_err," -3 use 3 for the E value\n"); |
| 218 | #ifndef OPENSSL_NO_ENGINE |
| 219 | BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); |
| 220 | #endif |
| 221 | BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); |
| 222 | BIO_printf(bio_err," load the file (or the files in the directory) into\n"); |
| 223 | BIO_printf(bio_err," the random number generator\n"); |
| 224 | goto err; |
| 225 | } |
| 226 | |
| 227 | ERR_load_crypto_strings(); |
| 228 | |
| 229 | if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { |
| 230 | BIO_printf(bio_err, "Error getting password\n"); |
| 231 | goto err; |
| 232 | } |
| 233 | |
| 234 | #ifndef OPENSSL_NO_ENGINE |
| 235 | e = setup_engine(bio_err, engine, 0); |
| 236 | #endif |
| 237 | |
| 238 | if (outfile == NULL) |
| 239 | { |
| 240 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
| 241 | #ifdef OPENSSL_SYS_VMS |
| 242 | { |
| 243 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| 244 | out = BIO_push(tmpbio, out); |
| 245 | } |
| 246 | #endif |
| 247 | } |
| 248 | else |
| 249 | { |
| 250 | if (BIO_write_filename(out,outfile) <= 0) |
| 251 | { |
| 252 | perror(outfile); |
| 253 | goto err; |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL |
| 258 | && !RAND_status()) |
| 259 | { |
| 260 | BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); |
| 261 | } |
| 262 | if (inrand != NULL) |
| 263 | BIO_printf(bio_err,"%ld semi-random bytes loaded\n", |
| 264 | app_RAND_load_files(inrand)); |
| 265 | |
| 266 | BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n", |
| 267 | num); |
| 268 | #ifdef OPENSSL_NO_ENGINE |
| 269 | rsa = RSA_new(); |
| 270 | #else |
| 271 | rsa = RSA_new_method(e); |
| 272 | #endif |
| 273 | if (!rsa) |
| 274 | goto err; |
| 275 | |
| 276 | if(!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, &cb)) |
| 277 | goto err; |
| 278 | |
| 279 | app_RAND_write_file(NULL, bio_err); |
| 280 | |
| 281 | /* We need to do the following for when the base number size is < |
| 282 | * long, esp windows 3.1 :-(. */ |
| 283 | l=0L; |
| 284 | for (i=0; i<rsa->e->top; i++) |
| 285 | { |
| 286 | #ifndef SIXTY_FOUR_BIT |
| 287 | l<<=BN_BITS4; |
| 288 | l<<=BN_BITS4; |
| 289 | #endif |
| 290 | l+=rsa->e->d[i]; |
| 291 | } |
| 292 | BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l); |
| 293 | { |
| 294 | PW_CB_DATA cb_data; |
| 295 | cb_data.password = passout; |
| 296 | cb_data.prompt_info = outfile; |
| 297 | if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0, |
| 298 | (pem_password_cb *)password_callback,&cb_data)) |
| 299 | goto err; |
| 300 | } |
| 301 | |
| 302 | ret=0; |
| 303 | err: |
| 304 | if (bn) BN_free(bn); |
| 305 | if (rsa) RSA_free(rsa); |
| 306 | if (out) BIO_free_all(out); |
| 307 | if(passout) OPENSSL_free(passout); |
| 308 | if (ret != 0) |
| 309 | ERR_print_errors(bio_err); |
| 310 | apps_shutdown(); |
| 311 | OPENSSL_EXIT(ret); |
| 312 | } |
| 313 | |
| 314 | static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb) |
| 315 | { |
| 316 | char c='*'; |
| 317 | |
| 318 | if (p == 0) c='.'; |
| 319 | if (p == 1) c='+'; |
| 320 | if (p == 2) c='*'; |
| 321 | if (p == 3) c='\n'; |
| 322 | BIO_write(cb->arg,&c,1); |
| 323 | (void)BIO_flush(cb->arg); |
| 324 | #ifdef LINT |
| 325 | p=n; |
| 326 | #endif |
| 327 | return 1; |
| 328 | } |
| 329 | #else /* !OPENSSL_NO_RSA */ |
| 330 | |
| 331 | # if PEDANTIC |
| 332 | static void *dummy=&dummy; |
| 333 | # endif |
| 334 | |
| 335 | #endif |