1 /* apps/rsa.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 #ifndef OPENSSL_NO_RSA 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <time.h> 65 #include "apps.h" 66 #include <openssl/bio.h> 67 #include <openssl/err.h> 68 #include <openssl/rsa.h> 69 #include <openssl/evp.h> 70 #include <openssl/x509.h> 71 #include <openssl/pem.h> 72 #include <openssl/bn.h> 73 74 #undef PROG 75 #define PROG rsa_main 76 77 /* -inform arg - input format - default PEM (one of DER, NET or PEM) 78 * -outform arg - output format - default PEM 79 * -in arg - input file - default stdin 80 * -out arg - output file - default stdout 81 * -des - encrypt output if PEM format with DES in cbc mode 82 * -des3 - encrypt output if PEM format 83 * -idea - encrypt output if PEM format 84 * -seed - encrypt output if PEM format 85 * -aes128 - encrypt output if PEM format 86 * -aes192 - encrypt output if PEM format 87 * -aes256 - encrypt output if PEM format 88 * -camellia128 - encrypt output if PEM format 89 * -camellia192 - encrypt output if PEM format 90 * -camellia256 - encrypt output if PEM format 91 * -text - print a text version 92 * -modulus - print the RSA key modulus 93 * -check - verify key consistency 94 * -pubin - Expect a public key in input file. 95 * -pubout - Output a public key. 96 */ 97 98 int MAIN(int, char **); 99 100 int MAIN(int argc, char **argv) 101 { 102 ENGINE *e = NULL; 103 int ret=1; 104 RSA *rsa=NULL; 105 int i,badops=0, sgckey=0; 106 const EVP_CIPHER *enc=NULL; 107 BIO *out=NULL; 108 int informat,outformat,text=0,check=0,noout=0; 109 int pubin = 0, pubout = 0; 110 char *infile,*outfile,*prog; 111 char *passargin = NULL, *passargout = NULL; 112 char *passin = NULL, *passout = NULL; 113 #ifndef OPENSSL_NO_ENGINE 114 char *engine=NULL; 115 #endif 116 int modulus=0; 117 118 int pvk_encr = 2; 119 120 apps_startup(); 121 122 if (bio_err == NULL) 123 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 124 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 125 126 if (!load_config(bio_err, NULL)) 127 goto end; 128 129 infile=NULL; 130 outfile=NULL; 131 informat=FORMAT_PEM; 132 outformat=FORMAT_PEM; 133 134 prog=argv[0]; 135 argc--; 136 argv++; 137 while (argc >= 1) 138 { 139 if (strcmp(*argv,"-inform") == 0) 140 { 141 if (--argc < 1) goto bad; 142 informat=str2fmt(*(++argv)); 143 } 144 else if (strcmp(*argv,"-outform") == 0) 145 { 146 if (--argc < 1) goto bad; 147 outformat=str2fmt(*(++argv)); 148 } 149 else if (strcmp(*argv,"-in") == 0) 150 { 151 if (--argc < 1) goto bad; 152 infile= *(++argv); 153 } 154 else if (strcmp(*argv,"-out") == 0) 155 { 156 if (--argc < 1) goto bad; 157 outfile= *(++argv); 158 } 159 else if (strcmp(*argv,"-passin") == 0) 160 { 161 if (--argc < 1) goto bad; 162 passargin= *(++argv); 163 } 164 else if (strcmp(*argv,"-passout") == 0) 165 { 166 if (--argc < 1) goto bad; 167 passargout= *(++argv); 168 } 169 #ifndef OPENSSL_NO_ENGINE 170 else if (strcmp(*argv,"-engine") == 0) 171 { 172 if (--argc < 1) goto bad; 173 engine= *(++argv); 174 } 175 #endif 176 else if (strcmp(*argv,"-sgckey") == 0) 177 sgckey=1; 178 else if (strcmp(*argv,"-pubin") == 0) 179 pubin=1; 180 else if (strcmp(*argv,"-pubout") == 0) 181 pubout=1; 182 else if (strcmp(*argv,"-RSAPublicKey_in") == 0) 183 pubin = 2; 184 else if (strcmp(*argv,"-RSAPublicKey_out") == 0) 185 pubout = 2; 186 else if (strcmp(*argv,"-pvk-strong") == 0) 187 pvk_encr=2; 188 else if (strcmp(*argv,"-pvk-weak") == 0) 189 pvk_encr=1; 190 else if (strcmp(*argv,"-pvk-none") == 0) 191 pvk_encr=0; 192 else if (strcmp(*argv,"-noout") == 0) 193 noout=1; 194 else if (strcmp(*argv,"-text") == 0) 195 text=1; 196 else if (strcmp(*argv,"-modulus") == 0) 197 modulus=1; 198 else if (strcmp(*argv,"-check") == 0) 199 check=1; 200 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 201 { 202 BIO_printf(bio_err,"unknown option %s\n",*argv); 203 badops=1; 204 break; 205 } 206 argc--; 207 argv++; 208 } 209 210 if (badops) 211 { 212 bad: 213 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); 214 BIO_printf(bio_err,"where options are\n"); 215 BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); 216 BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); 217 BIO_printf(bio_err," -in arg input file\n"); 218 BIO_printf(bio_err," -sgckey Use IIS SGC key format\n"); 219 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); 220 BIO_printf(bio_err," -out arg output file\n"); 221 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 222 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 223 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 224 #ifndef OPENSSL_NO_IDEA 225 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 226 #endif 227 #ifndef OPENSSL_NO_SEED 228 BIO_printf(bio_err," -seed encrypt PEM output with cbc seed\n"); 229 #endif 230 #ifndef OPENSSL_NO_AES 231 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 232 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 233 #endif 234 #ifndef OPENSSL_NO_CAMELLIA 235 BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n"); 236 BIO_printf(bio_err," encrypt PEM output with cbc camellia\n"); 237 #endif 238 BIO_printf(bio_err," -text print the key in text\n"); 239 BIO_printf(bio_err," -noout don't print key out\n"); 240 BIO_printf(bio_err," -modulus print the RSA key modulus\n"); 241 BIO_printf(bio_err," -check verify key consistency\n"); 242 BIO_printf(bio_err," -pubin expect a public key in input file\n"); 243 BIO_printf(bio_err," -pubout output a public key\n"); 244 #ifndef OPENSSL_NO_ENGINE 245 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 246 #endif 247 goto end; 248 } 249 250 ERR_load_crypto_strings(); 251 252 #ifndef OPENSSL_NO_ENGINE 253 e = setup_engine(bio_err, engine, 0); 254 #endif 255 256 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 257 BIO_printf(bio_err, "Error getting passwords\n"); 258 goto end; 259 } 260 261 if(check && pubin) { 262 BIO_printf(bio_err, "Only private keys can be checked\n"); 263 goto end; 264 } 265 266 out=BIO_new(BIO_s_file()); 267 268 { 269 EVP_PKEY *pkey; 270 271 if (pubin) 272 { 273 int tmpformat=-1; 274 if (pubin == 2) 275 { 276 if (informat == FORMAT_PEM) 277 tmpformat = FORMAT_PEMRSA; 278 else if (informat == FORMAT_ASN1) 279 tmpformat = FORMAT_ASN1RSA; 280 } 281 else if (informat == FORMAT_NETSCAPE && sgckey) 282 tmpformat = FORMAT_IISSGC; 283 else 284 tmpformat = informat; 285 286 pkey = load_pubkey(bio_err, infile, tmpformat, 1, 287 passin, e, "Public Key"); 288 } 289 else 290 pkey = load_key(bio_err, infile, 291 (informat == FORMAT_NETSCAPE && sgckey ? 292 FORMAT_IISSGC : informat), 1, 293 passin, e, "Private Key"); 294 295 if (pkey != NULL) 296 rsa = EVP_PKEY_get1_RSA(pkey); 297 EVP_PKEY_free(pkey); 298 } 299 300 if (rsa == NULL) 301 { 302 ERR_print_errors(bio_err); 303 goto end; 304 } 305 306 if (outfile == NULL) 307 { 308 BIO_set_fp(out,stdout,BIO_NOCLOSE); 309 #ifdef OPENSSL_SYS_VMS 310 { 311 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 312 out = BIO_push(tmpbio, out); 313 } 314 #endif 315 } 316 else 317 { 318 if (BIO_write_filename(out,outfile) <= 0) 319 { 320 perror(outfile); 321 goto end; 322 } 323 } 324 325 if (text) 326 if (!RSA_print(out,rsa,0)) 327 { 328 perror(outfile); 329 ERR_print_errors(bio_err); 330 goto end; 331 } 332 333 if (modulus) 334 { 335 BIO_printf(out,"Modulus="); 336 BN_print(out,rsa->n); 337 BIO_printf(out,"\n"); 338 } 339 340 if (check) 341 { 342 int r = RSA_check_key(rsa); 343 344 if (r == 1) 345 BIO_printf(out,"RSA key ok\n"); 346 else if (r == 0) 347 { 348 unsigned long err; 349 350 while ((err = ERR_peek_error()) != 0 && 351 ERR_GET_LIB(err) == ERR_LIB_RSA && 352 ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY && 353 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) 354 { 355 BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err)); 356 ERR_get_error(); /* remove e from error stack */ 357 } 358 } 359 360 if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ 361 { 362 ERR_print_errors(bio_err); 363 goto end; 364 } 365 } 366 367 if (noout) 368 { 369 ret = 0; 370 goto end; 371 } 372 BIO_printf(bio_err,"writing RSA key\n"); 373 if (outformat == FORMAT_ASN1) { 374 if(pubout || pubin) 375 { 376 if (pubout == 2) 377 i=i2d_RSAPublicKey_bio(out,rsa); 378 else 379 i=i2d_RSA_PUBKEY_bio(out,rsa); 380 } 381 else i=i2d_RSAPrivateKey_bio(out,rsa); 382 } 383 #ifndef OPENSSL_NO_RC4 384 else if (outformat == FORMAT_NETSCAPE) 385 { 386 unsigned char *p,*pp; 387 int size; 388 389 i=1; 390 size=i2d_RSA_NET(rsa,NULL,NULL, sgckey); 391 if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL) 392 { 393 BIO_printf(bio_err,"Memory allocation failure\n"); 394 goto end; 395 } 396 pp=p; 397 i2d_RSA_NET(rsa,&p,NULL, sgckey); 398 BIO_write(out,(char *)pp,size); 399 OPENSSL_free(pp); 400 } 401 #endif 402 else if (outformat == FORMAT_PEM) { 403 if(pubout || pubin) 404 { 405 if (pubout == 2) 406 i=PEM_write_bio_RSAPublicKey(out,rsa); 407 else 408 i=PEM_write_bio_RSA_PUBKEY(out,rsa); 409 } 410 else i=PEM_write_bio_RSAPrivateKey(out,rsa, 411 enc,NULL,0,NULL,passout); 412 #ifndef OPENSSL_NO_DSA 413 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) { 414 EVP_PKEY *pk; 415 pk = EVP_PKEY_new(); 416 EVP_PKEY_set1_RSA(pk, rsa); 417 if (outformat == FORMAT_PVK) 418 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout); 419 else if (pubin || pubout) 420 i = i2b_PublicKey_bio(out, pk); 421 else 422 i = i2b_PrivateKey_bio(out, pk); 423 EVP_PKEY_free(pk); 424 #endif 425 } else { 426 BIO_printf(bio_err,"bad output format specified for outfile\n"); 427 goto end; 428 } 429 if (i <= 0) 430 { 431 BIO_printf(bio_err,"unable to write key\n"); 432 ERR_print_errors(bio_err); 433 } 434 else 435 ret=0; 436 end: 437 if(out != NULL) BIO_free_all(out); 438 if(rsa != NULL) RSA_free(rsa); 439 if(passin) OPENSSL_free(passin); 440 if(passout) OPENSSL_free(passout); 441 apps_shutdown(); 442 OPENSSL_EXIT(ret); 443 } 444 #else /* !OPENSSL_NO_RSA */ 445 446 # if PEDANTIC 447 static void *dummy=&dummy; 448 # endif 449 450 #endif 451