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 /* 60 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 61 * Use is subject to license terms. 62 */ 63 64 #pragma ident "%Z%%M% %I% %E% SMI" 65 66 #include <openssl/opensslconf.h> 67 /* Until the key-gen callbacks are modified to use newer prototypes, we allow 68 * deprecated functions for openssl-internal code */ 69 #ifdef OPENSSL_NO_DEPRECATED 70 #undef OPENSSL_NO_DEPRECATED 71 #endif 72 73 #ifndef OPENSSL_NO_RSA 74 #include <stdio.h> 75 #include <string.h> 76 #include <sys/types.h> 77 #include <sys/stat.h> 78 #include "apps.h" 79 #include <openssl/bio.h> 80 #include <openssl/err.h> 81 #include <openssl/bn.h> 82 #include <openssl/rsa.h> 83 #include <openssl/evp.h> 84 #include <openssl/x509.h> 85 #include <openssl/pem.h> 86 #include <openssl/rand.h> 87 88 #define DEFBITS 512 89 #undef PROG 90 #define PROG genrsa_main 91 92 #ifdef SOLARIS_OPENSSL 93 extern int SUNWcry_installed; 94 #endif 95 96 static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb); 97 98 int MAIN(int, char **); 99 100 int MAIN(int argc, char **argv) 101 { 102 BN_GENCB cb; 103 #ifndef OPENSSL_NO_ENGINE 104 ENGINE *e = NULL; 105 #endif 106 int ret=1; 107 int i,num=DEFBITS; 108 long l; 109 const EVP_CIPHER *enc=NULL; 110 unsigned long f4=RSA_F4; 111 char *outfile=NULL; 112 char *passargout = NULL, *passout = NULL; 113 #ifndef OPENSSL_NO_ENGINE 114 char *engine=NULL; 115 #endif 116 char *inrand=NULL; 117 BIO *out=NULL; 118 BIGNUM *bn = BN_new(); 119 RSA *rsa = RSA_new(); 120 121 if(!bn || !rsa) goto err; 122 123 apps_startup(); 124 BN_GENCB_set(&cb, genrsa_cb, bio_err); 125 126 if (bio_err == NULL) 127 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 128 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 129 130 if (!load_config(bio_err, NULL)) 131 goto err; 132 if ((out=BIO_new(BIO_s_file())) == NULL) 133 { 134 BIO_printf(bio_err,"unable to create BIO for output\n"); 135 goto err; 136 } 137 138 argv++; 139 argc--; 140 for (;;) 141 { 142 if (argc <= 0) break; 143 if (strcmp(*argv,"-out") == 0) 144 { 145 if (--argc < 1) goto bad; 146 outfile= *(++argv); 147 } 148 else if (strcmp(*argv,"-3") == 0) 149 f4=3; 150 else if (strcmp(*argv,"-F4") == 0 || strcmp(*argv,"-f4") == 0) 151 f4=RSA_F4; 152 #ifndef OPENSSL_NO_ENGINE 153 else if (strcmp(*argv,"-engine") == 0) 154 { 155 if (--argc < 1) goto bad; 156 engine= *(++argv); 157 } 158 #endif 159 else if (strcmp(*argv,"-rand") == 0) 160 { 161 if (--argc < 1) goto bad; 162 inrand= *(++argv); 163 } 164 #ifndef OPENSSL_NO_DES 165 else if (strcmp(*argv,"-des") == 0) 166 enc=EVP_des_cbc(); 167 else if (strcmp(*argv,"-des3") == 0) 168 enc=EVP_des_ede3_cbc(); 169 #endif 170 #ifndef OPENSSL_NO_IDEA 171 else if (strcmp(*argv,"-idea") == 0) 172 enc=EVP_idea_cbc(); 173 #endif 174 #ifndef OPENSSL_NO_AES 175 else if (strcmp(*argv,"-aes128") == 0) 176 enc=EVP_aes_128_cbc(); 177 #ifdef SOLARIS_OPENSSL 178 else if (strcmp(*argv,"-aes192") == 0) 179 { 180 if (!SUNWcry_installed) 181 { 182 BIO_printf(bio_err,"SUNWcry not installed.\n"); 183 goto bad; 184 } 185 } 186 else if (strcmp(*argv,"-aes256") == 0) 187 { 188 if (!SUNWcry_installed) 189 { 190 BIO_printf(bio_err,"SUNWcry not installed.\n"); 191 goto bad; 192 } 193 } 194 #else 195 else if (strcmp(*argv,"-aes192") == 0) 196 enc=EVP_aes_192_cbc(); 197 else if (strcmp(*argv,"-aes256") == 0) 198 enc=EVP_aes_256_cbc(); 199 #endif 200 #endif 201 else if (strcmp(*argv,"-passout") == 0) 202 { 203 if (--argc < 1) goto bad; 204 passargout= *(++argv); 205 } 206 else 207 break; 208 argv++; 209 argc--; 210 } 211 if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0))) 212 { 213 bad: 214 BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n"); 215 BIO_printf(bio_err," -des encrypt the generated key with DES in cbc mode\n"); 216 BIO_printf(bio_err," -des3 encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); 217 #ifndef OPENSSL_NO_IDEA 218 BIO_printf(bio_err," -idea encrypt the generated key with IDEA in cbc mode\n"); 219 #endif 220 #ifndef OPENSSL_NO_AES 221 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 222 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 223 #endif 224 BIO_printf(bio_err," -out file output the key to 'file\n"); 225 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 226 BIO_printf(bio_err," -f4 use F4 (0x10001) for the E value\n"); 227 BIO_printf(bio_err," -3 use 3 for the E value\n"); 228 #ifndef OPENSSL_NO_ENGINE 229 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 230 #endif 231 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 232 BIO_printf(bio_err," load the file (or the files in the directory) into\n"); 233 BIO_printf(bio_err," the random number generator\n"); 234 goto err; 235 } 236 237 ERR_load_crypto_strings(); 238 239 if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { 240 BIO_printf(bio_err, "Error getting password\n"); 241 goto err; 242 } 243 244 #ifndef OPENSSL_NO_ENGINE 245 e = setup_engine(bio_err, engine, 0); 246 #endif 247 248 if (outfile == NULL) 249 { 250 BIO_set_fp(out,stdout,BIO_NOCLOSE); 251 #ifdef OPENSSL_SYS_VMS 252 { 253 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 254 out = BIO_push(tmpbio, out); 255 } 256 #endif 257 } 258 else 259 { 260 if (BIO_write_filename(out,outfile) <= 0) 261 { 262 perror(outfile); 263 goto err; 264 } 265 } 266 267 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 268 && !RAND_status()) 269 { 270 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); 271 } 272 if (inrand != NULL) 273 BIO_printf(bio_err,"%ld semi-random bytes loaded\n", 274 app_RAND_load_files(inrand)); 275 276 BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n", 277 num); 278 279 if(!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, &cb)) 280 goto err; 281 282 app_RAND_write_file(NULL, bio_err); 283 284 /* We need to do the following for when the base number size is < 285 * long, esp windows 3.1 :-(. */ 286 l=0L; 287 for (i=0; i<rsa->e->top; i++) 288 { 289 #ifndef SIXTY_FOUR_BIT 290 l<<=BN_BITS4; 291 l<<=BN_BITS4; 292 #endif 293 l+=rsa->e->d[i]; 294 } 295 BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l); 296 { 297 PW_CB_DATA cb_data; 298 cb_data.password = passout; 299 cb_data.prompt_info = outfile; 300 if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0, 301 (pem_password_cb *)password_callback,&cb_data)) 302 goto err; 303 } 304 305 ret=0; 306 err: 307 if (bn) BN_free(bn); 308 if (rsa) RSA_free(rsa); 309 if (out) BIO_free_all(out); 310 if(passout) OPENSSL_free(passout); 311 if (ret != 0) 312 ERR_print_errors(bio_err); 313 apps_shutdown(); 314 OPENSSL_EXIT(ret); 315 } 316 317 static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb) 318 { 319 char c='*'; 320 321 if (p == 0) c='.'; 322 if (p == 1) c='+'; 323 if (p == 2) c='*'; 324 if (p == 3) c='\n'; 325 BIO_write(cb->arg,&c,1); 326 (void)BIO_flush(cb->arg); 327 #ifdef LINT 328 p=n; 329 #endif 330 return 1; 331 } 332 #else /* !OPENSSL_NO_RSA */ 333 334 # if PEDANTIC 335 static void *dummy=&dummy; 336 # endif 337 338 #endif 339