Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 | #if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4) |
| 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 |