1 /* apps/genrsa.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 336
