cms.c revision 296465
1/* apps/cms.c */ 2/* 3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 4 * project. 5 */ 6/* ==================================================================== 7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * licensing@OpenSSL.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 */ 54 55/* CMS utility function */ 56 57#include <stdio.h> 58#include <string.h> 59#include "apps.h" 60 61#ifndef OPENSSL_NO_CMS 62 63# include <openssl/crypto.h> 64# include <openssl/pem.h> 65# include <openssl/err.h> 66# include <openssl/x509_vfy.h> 67# include <openssl/x509v3.h> 68# include <openssl/cms.h> 69 70# undef PROG 71# define PROG cms_main 72static int save_certs(char *signerfile, STACK_OF(X509) *signers); 73static int cms_cb(int ok, X509_STORE_CTX *ctx); 74static void receipt_request_print(BIO *out, CMS_ContentInfo *cms); 75static CMS_ReceiptRequest *make_receipt_request(STACK * rr_to, 76 int rr_allorfirst, 77 STACK * rr_from); 78 79# define SMIME_OP 0x10 80# define SMIME_IP 0x20 81# define SMIME_SIGNERS 0x40 82# define SMIME_ENCRYPT (1 | SMIME_OP) 83# define SMIME_DECRYPT (2 | SMIME_IP) 84# define SMIME_SIGN (3 | SMIME_OP | SMIME_SIGNERS) 85# define SMIME_VERIFY (4 | SMIME_IP) 86# define SMIME_CMSOUT (5 | SMIME_IP | SMIME_OP) 87# define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS) 88# define SMIME_DATAOUT (7 | SMIME_IP) 89# define SMIME_DATA_CREATE (8 | SMIME_OP) 90# define SMIME_DIGEST_VERIFY (9 | SMIME_IP) 91# define SMIME_DIGEST_CREATE (10 | SMIME_OP) 92# define SMIME_UNCOMPRESS (11 | SMIME_IP) 93# define SMIME_COMPRESS (12 | SMIME_OP) 94# define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP) 95# define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP) 96# define SMIME_SIGN_RECEIPT (15 | SMIME_IP | SMIME_OP) 97# define SMIME_VERIFY_RECEIPT (16 | SMIME_IP) 98 99int MAIN(int, char **); 100 101int MAIN(int argc, char **argv) 102{ 103 ENGINE *e = NULL; 104 int operation = 0; 105 int ret = 0; 106 char **args; 107 const char *inmode = "r", *outmode = "w"; 108 char *infile = NULL, *outfile = NULL, *rctfile = NULL; 109 char *signerfile = NULL, *recipfile = NULL; 110 STACK *sksigners = NULL, *skkeys = NULL; 111 char *certfile = NULL, *keyfile = NULL, *contfile = NULL; 112 char *certsoutfile = NULL; 113 const EVP_CIPHER *cipher = NULL; 114 CMS_ContentInfo *cms = NULL, *rcms = NULL; 115 X509_STORE *store = NULL; 116 X509 *cert = NULL, *recip = NULL, *signer = NULL; 117 EVP_PKEY *key = NULL; 118 STACK_OF(X509) *encerts = NULL, *other = NULL; 119 BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL; 120 int badarg = 0; 121 int flags = CMS_DETACHED; 122 int rr_print = 0, rr_allorfirst = -1; 123 STACK *rr_to = NULL, *rr_from = NULL; 124 CMS_ReceiptRequest *rr = NULL; 125 char *to = NULL, *from = NULL, *subject = NULL; 126 char *CAfile = NULL, *CApath = NULL; 127 char *passargin = NULL, *passin = NULL; 128 char *inrand = NULL; 129 int need_rand = 0; 130 const EVP_MD *sign_md = NULL; 131 int informat = FORMAT_SMIME, outformat = FORMAT_SMIME; 132 int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM; 133# ifndef OPENSSL_NO_ENGINE 134 char *engine = NULL; 135# endif 136 unsigned char *secret_key = NULL, *secret_keyid = NULL; 137 size_t secret_keylen = 0, secret_keyidlen = 0; 138 139 ASN1_OBJECT *econtent_type = NULL; 140 141 X509_VERIFY_PARAM *vpm = NULL; 142 143 args = argv + 1; 144 ret = 1; 145 146 apps_startup(); 147 148 if (bio_err == NULL) { 149 if ((bio_err = BIO_new(BIO_s_file())) != NULL) 150 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); 151 } 152 153 if (!load_config(bio_err, NULL)) 154 goto end; 155 156 while (!badarg && *args && *args[0] == '-') { 157 if (!strcmp(*args, "-encrypt")) 158 operation = SMIME_ENCRYPT; 159 else if (!strcmp(*args, "-decrypt")) 160 operation = SMIME_DECRYPT; 161 else if (!strcmp(*args, "-sign")) 162 operation = SMIME_SIGN; 163 else if (!strcmp(*args, "-sign_receipt")) 164 operation = SMIME_SIGN_RECEIPT; 165 else if (!strcmp(*args, "-resign")) 166 operation = SMIME_RESIGN; 167 else if (!strcmp(*args, "-verify")) 168 operation = SMIME_VERIFY; 169 else if (!strcmp(*args, "-verify_receipt")) { 170 operation = SMIME_VERIFY_RECEIPT; 171 if (!args[1]) 172 goto argerr; 173 args++; 174 rctfile = *args; 175 } else if (!strcmp(*args, "-cmsout")) 176 operation = SMIME_CMSOUT; 177 else if (!strcmp(*args, "-data_out")) 178 operation = SMIME_DATAOUT; 179 else if (!strcmp(*args, "-data_create")) 180 operation = SMIME_DATA_CREATE; 181 else if (!strcmp(*args, "-digest_verify")) 182 operation = SMIME_DIGEST_VERIFY; 183 else if (!strcmp(*args, "-digest_create")) 184 operation = SMIME_DIGEST_CREATE; 185 else if (!strcmp(*args, "-compress")) 186 operation = SMIME_COMPRESS; 187 else if (!strcmp(*args, "-uncompress")) 188 operation = SMIME_UNCOMPRESS; 189 else if (!strcmp(*args, "-EncryptedData_decrypt")) 190 operation = SMIME_ENCRYPTED_DECRYPT; 191 else if (!strcmp(*args, "-EncryptedData_encrypt")) 192 operation = SMIME_ENCRYPTED_ENCRYPT; 193# ifndef OPENSSL_NO_DES 194 else if (!strcmp(*args, "-des3")) 195 cipher = EVP_des_ede3_cbc(); 196 else if (!strcmp(*args, "-des")) 197 cipher = EVP_des_cbc(); 198# endif 199# ifndef OPENSSL_NO_SEED 200 else if (!strcmp(*args, "-seed")) 201 cipher = EVP_seed_cbc(); 202# endif 203# ifndef OPENSSL_NO_RC2 204 else if (!strcmp(*args, "-rc2-40")) 205 cipher = EVP_rc2_40_cbc(); 206 else if (!strcmp(*args, "-rc2-128")) 207 cipher = EVP_rc2_cbc(); 208 else if (!strcmp(*args, "-rc2-64")) 209 cipher = EVP_rc2_64_cbc(); 210# endif 211# ifndef OPENSSL_NO_AES 212 else if (!strcmp(*args, "-aes128")) 213 cipher = EVP_aes_128_cbc(); 214 else if (!strcmp(*args, "-aes192")) 215 cipher = EVP_aes_192_cbc(); 216 else if (!strcmp(*args, "-aes256")) 217 cipher = EVP_aes_256_cbc(); 218# endif 219# ifndef OPENSSL_NO_CAMELLIA 220 else if (!strcmp(*args, "-camellia128")) 221 cipher = EVP_camellia_128_cbc(); 222 else if (!strcmp(*args, "-camellia192")) 223 cipher = EVP_camellia_192_cbc(); 224 else if (!strcmp(*args, "-camellia256")) 225 cipher = EVP_camellia_256_cbc(); 226# endif 227 else if (!strcmp(*args, "-debug_decrypt")) 228 flags |= CMS_DEBUG_DECRYPT; 229 else if (!strcmp(*args, "-text")) 230 flags |= CMS_TEXT; 231 else if (!strcmp(*args, "-nointern")) 232 flags |= CMS_NOINTERN; 233 else if (!strcmp(*args, "-noverify") 234 || !strcmp(*args, "-no_signer_cert_verify")) 235 flags |= CMS_NO_SIGNER_CERT_VERIFY; 236 else if (!strcmp(*args, "-nocerts")) 237 flags |= CMS_NOCERTS; 238 else if (!strcmp(*args, "-noattr")) 239 flags |= CMS_NOATTR; 240 else if (!strcmp(*args, "-nodetach")) 241 flags &= ~CMS_DETACHED; 242 else if (!strcmp(*args, "-nosmimecap")) 243 flags |= CMS_NOSMIMECAP; 244 else if (!strcmp(*args, "-binary")) 245 flags |= CMS_BINARY; 246 else if (!strcmp(*args, "-keyid")) 247 flags |= CMS_USE_KEYID; 248 else if (!strcmp(*args, "-nosigs")) 249 flags |= CMS_NOSIGS; 250 else if (!strcmp(*args, "-no_content_verify")) 251 flags |= CMS_NO_CONTENT_VERIFY; 252 else if (!strcmp(*args, "-no_attr_verify")) 253 flags |= CMS_NO_ATTR_VERIFY; 254 else if (!strcmp(*args, "-stream")) { 255 args++; 256 continue; 257 } else if (!strcmp(*args, "-indef")) { 258 args++; 259 continue; 260 } else if (!strcmp(*args, "-noindef")) 261 flags &= ~CMS_STREAM; 262 else if (!strcmp(*args, "-nooldmime")) 263 flags |= CMS_NOOLDMIMETYPE; 264 else if (!strcmp(*args, "-crlfeol")) 265 flags |= CMS_CRLFEOL; 266 else if (!strcmp(*args, "-receipt_request_print")) 267 rr_print = 1; 268 else if (!strcmp(*args, "-receipt_request_all")) 269 rr_allorfirst = 0; 270 else if (!strcmp(*args, "-receipt_request_first")) 271 rr_allorfirst = 1; 272 else if (!strcmp(*args, "-receipt_request_from")) { 273 if (!args[1]) 274 goto argerr; 275 args++; 276 if (!rr_from) 277 rr_from = sk_new_null(); 278 sk_push(rr_from, *args); 279 } else if (!strcmp(*args, "-receipt_request_to")) { 280 if (!args[1]) 281 goto argerr; 282 args++; 283 if (!rr_to) 284 rr_to = sk_new_null(); 285 sk_push(rr_to, *args); 286 } else if (!strcmp(*args, "-secretkey")) { 287 long ltmp; 288 if (!args[1]) 289 goto argerr; 290 args++; 291 secret_key = string_to_hex(*args, <mp); 292 if (!secret_key) { 293 BIO_printf(bio_err, "Invalid key %s\n", *args); 294 goto argerr; 295 } 296 secret_keylen = (size_t)ltmp; 297 } else if (!strcmp(*args, "-secretkeyid")) { 298 long ltmp; 299 if (!args[1]) 300 goto argerr; 301 args++; 302 secret_keyid = string_to_hex(*args, <mp); 303 if (!secret_keyid) { 304 BIO_printf(bio_err, "Invalid id %s\n", *args); 305 goto argerr; 306 } 307 secret_keyidlen = (size_t)ltmp; 308 } else if (!strcmp(*args, "-econtent_type")) { 309 if (!args[1]) 310 goto argerr; 311 args++; 312 econtent_type = OBJ_txt2obj(*args, 0); 313 if (!econtent_type) { 314 BIO_printf(bio_err, "Invalid OID %s\n", *args); 315 goto argerr; 316 } 317 } else if (!strcmp(*args, "-rand")) { 318 if (!args[1]) 319 goto argerr; 320 args++; 321 inrand = *args; 322 need_rand = 1; 323 } 324# ifndef OPENSSL_NO_ENGINE 325 else if (!strcmp(*args, "-engine")) { 326 if (!args[1]) 327 goto argerr; 328 engine = *++args; 329 } 330# endif 331 else if (!strcmp(*args, "-passin")) { 332 if (!args[1]) 333 goto argerr; 334 passargin = *++args; 335 } else if (!strcmp(*args, "-to")) { 336 if (!args[1]) 337 goto argerr; 338 to = *++args; 339 } else if (!strcmp(*args, "-from")) { 340 if (!args[1]) 341 goto argerr; 342 from = *++args; 343 } else if (!strcmp(*args, "-subject")) { 344 if (!args[1]) 345 goto argerr; 346 subject = *++args; 347 } else if (!strcmp(*args, "-signer")) { 348 if (!args[1]) 349 goto argerr; 350 /* If previous -signer argument add signer to list */ 351 352 if (signerfile) { 353 if (!sksigners) 354 sksigners = sk_new_null(); 355 sk_push(sksigners, signerfile); 356 if (!keyfile) 357 keyfile = signerfile; 358 if (!skkeys) 359 skkeys = sk_new_null(); 360 sk_push(skkeys, keyfile); 361 keyfile = NULL; 362 } 363 signerfile = *++args; 364 } else if (!strcmp(*args, "-recip")) { 365 if (!args[1]) 366 goto argerr; 367 recipfile = *++args; 368 } else if (!strcmp(*args, "-certsout")) { 369 if (!args[1]) 370 goto argerr; 371 certsoutfile = *++args; 372 } else if (!strcmp(*args, "-md")) { 373 if (!args[1]) 374 goto argerr; 375 sign_md = EVP_get_digestbyname(*++args); 376 if (sign_md == NULL) { 377 BIO_printf(bio_err, "Unknown digest %s\n", *args); 378 goto argerr; 379 } 380 } else if (!strcmp(*args, "-inkey")) { 381 if (!args[1]) 382 goto argerr; 383 /* If previous -inkey arument add signer to list */ 384 if (keyfile) { 385 if (!signerfile) { 386 BIO_puts(bio_err, "Illegal -inkey without -signer\n"); 387 goto argerr; 388 } 389 if (!sksigners) 390 sksigners = sk_new_null(); 391 sk_push(sksigners, signerfile); 392 signerfile = NULL; 393 if (!skkeys) 394 skkeys = sk_new_null(); 395 sk_push(skkeys, keyfile); 396 } 397 keyfile = *++args; 398 } else if (!strcmp(*args, "-keyform")) { 399 if (!args[1]) 400 goto argerr; 401 keyform = str2fmt(*++args); 402 } else if (!strcmp(*args, "-rctform")) { 403 if (!args[1]) 404 goto argerr; 405 rctformat = str2fmt(*++args); 406 } else if (!strcmp(*args, "-certfile")) { 407 if (!args[1]) 408 goto argerr; 409 certfile = *++args; 410 } else if (!strcmp(*args, "-CAfile")) { 411 if (!args[1]) 412 goto argerr; 413 CAfile = *++args; 414 } else if (!strcmp(*args, "-CApath")) { 415 if (!args[1]) 416 goto argerr; 417 CApath = *++args; 418 } else if (!strcmp(*args, "-in")) { 419 if (!args[1]) 420 goto argerr; 421 infile = *++args; 422 } else if (!strcmp(*args, "-inform")) { 423 if (!args[1]) 424 goto argerr; 425 informat = str2fmt(*++args); 426 } else if (!strcmp(*args, "-outform")) { 427 if (!args[1]) 428 goto argerr; 429 outformat = str2fmt(*++args); 430 } else if (!strcmp(*args, "-out")) { 431 if (!args[1]) 432 goto argerr; 433 outfile = *++args; 434 } else if (!strcmp(*args, "-content")) { 435 if (!args[1]) 436 goto argerr; 437 contfile = *++args; 438 } else if (args_verify(&args, NULL, &badarg, bio_err, &vpm)) 439 continue; 440 else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL) 441 badarg = 1; 442 args++; 443 } 444 445 if (((rr_allorfirst != -1) || rr_from) && !rr_to) { 446 BIO_puts(bio_err, "No Signed Receipts Recipients\n"); 447 goto argerr; 448 } 449 450 if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) { 451 BIO_puts(bio_err, "Signed receipts only allowed with -sign\n"); 452 goto argerr; 453 } 454 if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) { 455 BIO_puts(bio_err, "Multiple signers or keys not allowed\n"); 456 goto argerr; 457 } 458 459 if (operation & SMIME_SIGNERS) { 460 if (keyfile && !signerfile) { 461 BIO_puts(bio_err, "Illegal -inkey without -signer\n"); 462 goto argerr; 463 } 464 /* Check to see if any final signer needs to be appended */ 465 if (signerfile) { 466 if (!sksigners) 467 sksigners = sk_new_null(); 468 sk_push(sksigners, signerfile); 469 if (!skkeys) 470 skkeys = sk_new_null(); 471 if (!keyfile) 472 keyfile = signerfile; 473 sk_push(skkeys, keyfile); 474 } 475 if (!sksigners) { 476 BIO_printf(bio_err, "No signer certificate specified\n"); 477 badarg = 1; 478 } 479 signerfile = NULL; 480 keyfile = NULL; 481 need_rand = 1; 482 } 483 484 else if (operation == SMIME_DECRYPT) { 485 if (!recipfile && !keyfile && !secret_key) { 486 BIO_printf(bio_err, 487 "No recipient certificate or key specified\n"); 488 badarg = 1; 489 } 490 } else if (operation == SMIME_ENCRYPT) { 491 if (!*args && !secret_key) { 492 BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); 493 badarg = 1; 494 } 495 need_rand = 1; 496 } else if (!operation) 497 badarg = 1; 498 499 if (badarg) { 500 argerr: 501 BIO_printf(bio_err, "Usage cms [options] cert.pem ...\n"); 502 BIO_printf(bio_err, "where options are\n"); 503 BIO_printf(bio_err, "-encrypt encrypt message\n"); 504 BIO_printf(bio_err, "-decrypt decrypt encrypted message\n"); 505 BIO_printf(bio_err, "-sign sign message\n"); 506 BIO_printf(bio_err, "-verify verify signed message\n"); 507 BIO_printf(bio_err, "-cmsout output CMS structure\n"); 508# ifndef OPENSSL_NO_DES 509 BIO_printf(bio_err, "-des3 encrypt with triple DES\n"); 510 BIO_printf(bio_err, "-des encrypt with DES\n"); 511# endif 512# ifndef OPENSSL_NO_SEED 513 BIO_printf(bio_err, "-seed encrypt with SEED\n"); 514# endif 515# ifndef OPENSSL_NO_RC2 516 BIO_printf(bio_err, "-rc2-40 encrypt with RC2-40 (default)\n"); 517 BIO_printf(bio_err, "-rc2-64 encrypt with RC2-64\n"); 518 BIO_printf(bio_err, "-rc2-128 encrypt with RC2-128\n"); 519# endif 520# ifndef OPENSSL_NO_AES 521 BIO_printf(bio_err, "-aes128, -aes192, -aes256\n"); 522 BIO_printf(bio_err, 523 " encrypt PEM output with cbc aes\n"); 524# endif 525# ifndef OPENSSL_NO_CAMELLIA 526 BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n"); 527 BIO_printf(bio_err, 528 " encrypt PEM output with cbc camellia\n"); 529# endif 530 BIO_printf(bio_err, 531 "-nointern don't search certificates in message for signer\n"); 532 BIO_printf(bio_err, 533 "-nosigs don't verify message signature\n"); 534 BIO_printf(bio_err, 535 "-noverify don't verify signers certificate\n"); 536 BIO_printf(bio_err, 537 "-nocerts don't include signers certificate when signing\n"); 538 BIO_printf(bio_err, "-nodetach use opaque signing\n"); 539 BIO_printf(bio_err, 540 "-noattr don't include any signed attributes\n"); 541 BIO_printf(bio_err, 542 "-binary don't translate message to text\n"); 543 BIO_printf(bio_err, "-certfile file other certificates file\n"); 544 BIO_printf(bio_err, "-certsout file certificate output file\n"); 545 BIO_printf(bio_err, "-signer file signer certificate file\n"); 546 BIO_printf(bio_err, 547 "-recip file recipient certificate file for decryption\n"); 548 BIO_printf(bio_err, "-keyid use subject key identifier\n"); 549 BIO_printf(bio_err, "-in file input file\n"); 550 BIO_printf(bio_err, 551 "-inform arg input format SMIME (default), PEM or DER\n"); 552 BIO_printf(bio_err, 553 "-inkey file input private key (if not signer or recipient)\n"); 554 BIO_printf(bio_err, 555 "-keyform arg input private key format (PEM or ENGINE)\n"); 556 BIO_printf(bio_err, "-out file output file\n"); 557 BIO_printf(bio_err, 558 "-outform arg output format SMIME (default), PEM or DER\n"); 559 BIO_printf(bio_err, 560 "-content file supply or override content for detached signature\n"); 561 BIO_printf(bio_err, "-to addr to address\n"); 562 BIO_printf(bio_err, "-from ad from address\n"); 563 BIO_printf(bio_err, "-subject s subject\n"); 564 BIO_printf(bio_err, 565 "-text include or delete text MIME headers\n"); 566 BIO_printf(bio_err, 567 "-CApath dir trusted certificates directory\n"); 568 BIO_printf(bio_err, "-CAfile file trusted certificates file\n"); 569 BIO_printf(bio_err, 570 "-crl_check check revocation status of signer's certificate using CRLs\n"); 571 BIO_printf(bio_err, 572 "-crl_check_all check revocation status of signer's certificate chain using CRLs\n"); 573# ifndef OPENSSL_NO_ENGINE 574 BIO_printf(bio_err, 575 "-engine e use engine e, possibly a hardware device.\n"); 576# endif 577 BIO_printf(bio_err, "-passin arg input file pass phrase source\n"); 578 BIO_printf(bio_err, "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, 579 LIST_SEPARATOR_CHAR); 580 BIO_printf(bio_err, 581 " load the file (or the files in the directory) into\n"); 582 BIO_printf(bio_err, " the random number generator\n"); 583 BIO_printf(bio_err, 584 "cert.pem recipient certificate(s) for encryption\n"); 585 goto end; 586 } 587# ifndef OPENSSL_NO_ENGINE 588 e = setup_engine(bio_err, engine, 0); 589# endif 590 591 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { 592 BIO_printf(bio_err, "Error getting password\n"); 593 goto end; 594 } 595 596 if (need_rand) { 597 app_RAND_load_file(NULL, bio_err, (inrand != NULL)); 598 if (inrand != NULL) 599 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 600 app_RAND_load_files(inrand)); 601 } 602 603 ret = 2; 604 605 if (!(operation & SMIME_SIGNERS)) 606 flags &= ~CMS_DETACHED; 607 608 if (operation & SMIME_OP) { 609 if (outformat == FORMAT_ASN1) 610 outmode = "wb"; 611 } else { 612 if (flags & CMS_BINARY) 613 outmode = "wb"; 614 } 615 616 if (operation & SMIME_IP) { 617 if (informat == FORMAT_ASN1) 618 inmode = "rb"; 619 } else { 620 if (flags & CMS_BINARY) 621 inmode = "rb"; 622 } 623 624 if (operation == SMIME_ENCRYPT) { 625 if (!cipher) { 626# ifndef OPENSSL_NO_DES 627 cipher = EVP_des_ede3_cbc(); 628# else 629 BIO_printf(bio_err, "No cipher selected\n"); 630 goto end; 631# endif 632 } 633 634 if (secret_key && !secret_keyid) { 635 BIO_printf(bio_err, "No sectre key id\n"); 636 goto end; 637 } 638 639 if (*args) 640 encerts = sk_X509_new_null(); 641 while (*args) { 642 if (!(cert = load_cert(bio_err, *args, FORMAT_PEM, 643 NULL, e, "recipient certificate file"))) 644 goto end; 645 sk_X509_push(encerts, cert); 646 cert = NULL; 647 args++; 648 } 649 } 650 651 if (certfile) { 652 if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL, 653 e, "certificate file"))) { 654 ERR_print_errors(bio_err); 655 goto end; 656 } 657 } 658 659 if (recipfile && (operation == SMIME_DECRYPT)) { 660 if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL, 661 e, "recipient certificate file"))) { 662 ERR_print_errors(bio_err); 663 goto end; 664 } 665 } 666 667 if (operation == SMIME_SIGN_RECEIPT) { 668 if (!(signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL, 669 e, "receipt signer certificate file"))) { 670 ERR_print_errors(bio_err); 671 goto end; 672 } 673 } 674 675 if (operation == SMIME_DECRYPT) { 676 if (!keyfile) 677 keyfile = recipfile; 678 } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) { 679 if (!keyfile) 680 keyfile = signerfile; 681 } else 682 keyfile = NULL; 683 684 if (keyfile) { 685 key = load_key(bio_err, keyfile, keyform, 0, passin, e, 686 "signing key file"); 687 if (!key) 688 goto end; 689 } 690 691 if (infile) { 692 if (!(in = BIO_new_file(infile, inmode))) { 693 BIO_printf(bio_err, "Can't open input file %s\n", infile); 694 goto end; 695 } 696 } else 697 in = BIO_new_fp(stdin, BIO_NOCLOSE); 698 699 if (operation & SMIME_IP) { 700 if (informat == FORMAT_SMIME) 701 cms = SMIME_read_CMS(in, &indata); 702 else if (informat == FORMAT_PEM) 703 cms = PEM_read_bio_CMS(in, NULL, NULL, NULL); 704 else if (informat == FORMAT_ASN1) 705 cms = d2i_CMS_bio(in, NULL); 706 else { 707 BIO_printf(bio_err, "Bad input format for CMS file\n"); 708 goto end; 709 } 710 711 if (!cms) { 712 BIO_printf(bio_err, "Error reading S/MIME message\n"); 713 goto end; 714 } 715 if (contfile) { 716 BIO_free(indata); 717 if (!(indata = BIO_new_file(contfile, "rb"))) { 718 BIO_printf(bio_err, "Can't read content file %s\n", contfile); 719 goto end; 720 } 721 } 722 if (certsoutfile) { 723 STACK_OF(X509) *allcerts; 724 allcerts = CMS_get1_certs(cms); 725 if (!save_certs(certsoutfile, allcerts)) { 726 BIO_printf(bio_err, 727 "Error writing certs to %s\n", certsoutfile); 728 ret = 5; 729 goto end; 730 } 731 sk_X509_pop_free(allcerts, X509_free); 732 } 733 } 734 735 if (rctfile) { 736 char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r"; 737 if (!(rctin = BIO_new_file(rctfile, rctmode))) { 738 BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile); 739 goto end; 740 } 741 742 if (rctformat == FORMAT_SMIME) 743 rcms = SMIME_read_CMS(rctin, NULL); 744 else if (rctformat == FORMAT_PEM) 745 rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL); 746 else if (rctformat == FORMAT_ASN1) 747 rcms = d2i_CMS_bio(rctin, NULL); 748 else { 749 BIO_printf(bio_err, "Bad input format for receipt\n"); 750 goto end; 751 } 752 753 if (!rcms) { 754 BIO_printf(bio_err, "Error reading receipt\n"); 755 goto end; 756 } 757 } 758 759 if (outfile) { 760 if (!(out = BIO_new_file(outfile, outmode))) { 761 BIO_printf(bio_err, "Can't open output file %s\n", outfile); 762 goto end; 763 } 764 } else { 765 out = BIO_new_fp(stdout, BIO_NOCLOSE); 766# ifdef OPENSSL_SYS_VMS 767 { 768 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 769 out = BIO_push(tmpbio, out); 770 } 771# endif 772 } 773 774 if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) { 775 if (!(store = setup_verify(bio_err, CAfile, CApath))) 776 goto end; 777 X509_STORE_set_verify_cb_func(store, cms_cb); 778 if (vpm) 779 X509_STORE_set1_param(store, vpm); 780 } 781 782 ret = 3; 783 784 if (operation == SMIME_DATA_CREATE) { 785 cms = CMS_data_create(in, flags); 786 } else if (operation == SMIME_DIGEST_CREATE) { 787 cms = CMS_digest_create(in, sign_md, flags); 788 } else if (operation == SMIME_COMPRESS) { 789 cms = CMS_compress(in, -1, flags); 790 } else if (operation == SMIME_ENCRYPT) { 791 flags |= CMS_PARTIAL; 792 cms = CMS_encrypt(encerts, in, cipher, flags); 793 if (!cms) 794 goto end; 795 if (secret_key) { 796 if (!CMS_add0_recipient_key(cms, NID_undef, 797 secret_key, secret_keylen, 798 secret_keyid, secret_keyidlen, 799 NULL, NULL, NULL)) 800 goto end; 801 /* NULL these because call absorbs them */ 802 secret_key = NULL; 803 secret_keyid = NULL; 804 } 805 if (!(flags & CMS_STREAM)) { 806 if (!CMS_final(cms, in, NULL, flags)) 807 goto end; 808 } 809 } else if (operation == SMIME_ENCRYPTED_ENCRYPT) { 810 cms = CMS_EncryptedData_encrypt(in, cipher, 811 secret_key, secret_keylen, flags); 812 813 } else if (operation == SMIME_SIGN_RECEIPT) { 814 CMS_ContentInfo *srcms = NULL; 815 STACK_OF(CMS_SignerInfo) *sis; 816 CMS_SignerInfo *si; 817 sis = CMS_get0_SignerInfos(cms); 818 if (!sis) 819 goto end; 820 si = sk_CMS_SignerInfo_value(sis, 0); 821 srcms = CMS_sign_receipt(si, signer, key, other, flags); 822 if (!srcms) 823 goto end; 824 CMS_ContentInfo_free(cms); 825 cms = srcms; 826 } else if (operation & SMIME_SIGNERS) { 827 int i; 828 /* 829 * If detached data content we enable streaming if S/MIME output 830 * format. 831 */ 832 if (operation == SMIME_SIGN) { 833 834 if (flags & CMS_DETACHED) { 835 if (outformat == FORMAT_SMIME) 836 flags |= CMS_STREAM; 837 } 838 flags |= CMS_PARTIAL; 839 cms = CMS_sign(NULL, NULL, other, in, flags); 840 if (!cms) 841 goto end; 842 if (econtent_type) 843 CMS_set1_eContentType(cms, econtent_type); 844 845 if (rr_to) { 846 rr = make_receipt_request(rr_to, rr_allorfirst, rr_from); 847 if (!rr) { 848 BIO_puts(bio_err, 849 "Signed Receipt Request Creation Error\n"); 850 goto end; 851 } 852 } 853 } else 854 flags |= CMS_REUSE_DIGEST; 855 for (i = 0; i < sk_num(sksigners); i++) { 856 CMS_SignerInfo *si; 857 signerfile = sk_value(sksigners, i); 858 keyfile = sk_value(skkeys, i); 859 signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL, 860 e, "signer certificate"); 861 if (!signer) 862 goto end; 863 key = load_key(bio_err, keyfile, keyform, 0, passin, e, 864 "signing key file"); 865 if (!key) 866 goto end; 867 si = CMS_add1_signer(cms, signer, key, sign_md, flags); 868 if (!si) 869 goto end; 870 if (rr && !CMS_add1_ReceiptRequest(si, rr)) 871 goto end; 872 X509_free(signer); 873 signer = NULL; 874 EVP_PKEY_free(key); 875 key = NULL; 876 } 877 /* If not streaming or resigning finalize structure */ 878 if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) { 879 if (!CMS_final(cms, in, NULL, flags)) 880 goto end; 881 } 882 } 883 884 if (!cms) { 885 BIO_printf(bio_err, "Error creating CMS structure\n"); 886 goto end; 887 } 888 889 ret = 4; 890 if (operation == SMIME_DECRYPT) { 891 if (flags & CMS_DEBUG_DECRYPT) 892 CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags); 893 894 if (secret_key) { 895 if (!CMS_decrypt_set1_key(cms, 896 secret_key, secret_keylen, 897 secret_keyid, secret_keyidlen)) { 898 BIO_puts(bio_err, "Error decrypting CMS using secret key\n"); 899 goto end; 900 } 901 } 902 903 if (key) { 904 if (!CMS_decrypt_set1_pkey(cms, key, recip)) { 905 BIO_puts(bio_err, "Error decrypting CMS using private key\n"); 906 goto end; 907 } 908 } 909 910 if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) { 911 BIO_printf(bio_err, "Error decrypting CMS structure\n"); 912 goto end; 913 } 914 } else if (operation == SMIME_DATAOUT) { 915 if (!CMS_data(cms, out, flags)) 916 goto end; 917 } else if (operation == SMIME_UNCOMPRESS) { 918 if (!CMS_uncompress(cms, indata, out, flags)) 919 goto end; 920 } else if (operation == SMIME_DIGEST_VERIFY) { 921 if (CMS_digest_verify(cms, indata, out, flags) > 0) 922 BIO_printf(bio_err, "Verification successful\n"); 923 else { 924 BIO_printf(bio_err, "Verification failure\n"); 925 goto end; 926 } 927 } else if (operation == SMIME_ENCRYPTED_DECRYPT) { 928 if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen, 929 indata, out, flags)) 930 goto end; 931 } else if (operation == SMIME_VERIFY) { 932 if (CMS_verify(cms, other, store, indata, out, flags) > 0) 933 BIO_printf(bio_err, "Verification successful\n"); 934 else { 935 BIO_printf(bio_err, "Verification failure\n"); 936 goto end; 937 } 938 if (signerfile) { 939 STACK_OF(X509) *signers; 940 signers = CMS_get0_signers(cms); 941 if (!save_certs(signerfile, signers)) { 942 BIO_printf(bio_err, 943 "Error writing signers to %s\n", signerfile); 944 ret = 5; 945 goto end; 946 } 947 sk_X509_free(signers); 948 } 949 if (rr_print) 950 receipt_request_print(bio_err, cms); 951 952 } else if (operation == SMIME_VERIFY_RECEIPT) { 953 if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) 954 BIO_printf(bio_err, "Verification successful\n"); 955 else { 956 BIO_printf(bio_err, "Verification failure\n"); 957 goto end; 958 } 959 } else { 960 if (outformat == FORMAT_SMIME) { 961 if (to) 962 BIO_printf(out, "To: %s\n", to); 963 if (from) 964 BIO_printf(out, "From: %s\n", from); 965 if (subject) 966 BIO_printf(out, "Subject: %s\n", subject); 967 if (operation == SMIME_RESIGN) 968 ret = SMIME_write_CMS(out, cms, indata, flags); 969 else 970 ret = SMIME_write_CMS(out, cms, in, flags); 971 } else if (outformat == FORMAT_PEM) 972 ret = PEM_write_bio_CMS(out, cms); 973 else if (outformat == FORMAT_ASN1) 974 ret = i2d_CMS_bio(out, cms); 975 else { 976 BIO_printf(bio_err, "Bad output format for CMS file\n"); 977 goto end; 978 } 979 if (ret <= 0) { 980 ret = 6; 981 goto end; 982 } 983 } 984 ret = 0; 985 end: 986 if (ret) 987 ERR_print_errors(bio_err); 988 if (need_rand) 989 app_RAND_write_file(NULL, bio_err); 990 sk_X509_pop_free(encerts, X509_free); 991 sk_X509_pop_free(other, X509_free); 992 if (vpm) 993 X509_VERIFY_PARAM_free(vpm); 994 if (sksigners) 995 sk_free(sksigners); 996 if (skkeys) 997 sk_free(skkeys); 998 if (secret_key) 999 OPENSSL_free(secret_key); 1000 if (secret_keyid) 1001 OPENSSL_free(secret_keyid); 1002 if (econtent_type) 1003 ASN1_OBJECT_free(econtent_type); 1004 if (rr) 1005 CMS_ReceiptRequest_free(rr); 1006 if (rr_to) 1007 sk_free(rr_to); 1008 if (rr_from) 1009 sk_free(rr_from); 1010 X509_STORE_free(store); 1011 X509_free(cert); 1012 X509_free(recip); 1013 X509_free(signer); 1014 EVP_PKEY_free(key); 1015 CMS_ContentInfo_free(cms); 1016 CMS_ContentInfo_free(rcms); 1017 BIO_free(rctin); 1018 BIO_free(in); 1019 BIO_free(indata); 1020 BIO_free_all(out); 1021 if (passin) 1022 OPENSSL_free(passin); 1023 return (ret); 1024} 1025 1026static int save_certs(char *signerfile, STACK_OF(X509) *signers) 1027{ 1028 int i; 1029 BIO *tmp; 1030 if (!signerfile) 1031 return 1; 1032 tmp = BIO_new_file(signerfile, "w"); 1033 if (!tmp) 1034 return 0; 1035 for (i = 0; i < sk_X509_num(signers); i++) 1036 PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); 1037 BIO_free(tmp); 1038 return 1; 1039} 1040 1041/* Minimal callback just to output policy info (if any) */ 1042 1043static int cms_cb(int ok, X509_STORE_CTX *ctx) 1044{ 1045 int error; 1046 1047 error = X509_STORE_CTX_get_error(ctx); 1048 1049 if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) 1050 && ((error != X509_V_OK) || (ok != 2))) 1051 return ok; 1052 1053 policies_print(NULL, ctx); 1054 1055 return ok; 1056 1057} 1058 1059static void gnames_stack_print(BIO *out, STACK_OF(GENERAL_NAMES) *gns) 1060{ 1061 STACK_OF(GENERAL_NAME) *gens; 1062 GENERAL_NAME *gen; 1063 int i, j; 1064 for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) { 1065 gens = sk_GENERAL_NAMES_value(gns, i); 1066 for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) { 1067 gen = sk_GENERAL_NAME_value(gens, j); 1068 BIO_puts(out, " "); 1069 GENERAL_NAME_print(out, gen); 1070 BIO_puts(out, "\n"); 1071 } 1072 } 1073 return; 1074} 1075 1076static void receipt_request_print(BIO *out, CMS_ContentInfo *cms) 1077{ 1078 STACK_OF(CMS_SignerInfo) *sis; 1079 CMS_SignerInfo *si; 1080 CMS_ReceiptRequest *rr; 1081 int allorfirst; 1082 STACK_OF(GENERAL_NAMES) *rto, *rlist; 1083 ASN1_STRING *scid; 1084 int i, rv; 1085 sis = CMS_get0_SignerInfos(cms); 1086 for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) { 1087 si = sk_CMS_SignerInfo_value(sis, i); 1088 rv = CMS_get1_ReceiptRequest(si, &rr); 1089 BIO_printf(bio_err, "Signer %d:\n", i + 1); 1090 if (rv == 0) 1091 BIO_puts(bio_err, " No Receipt Request\n"); 1092 else if (rv < 0) { 1093 BIO_puts(bio_err, " Receipt Request Parse Error\n"); 1094 ERR_print_errors(bio_err); 1095 } else { 1096 char *id; 1097 int idlen; 1098 CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst, 1099 &rlist, &rto); 1100 BIO_puts(out, " Signed Content ID:\n"); 1101 idlen = ASN1_STRING_length(scid); 1102 id = (char *)ASN1_STRING_data(scid); 1103 BIO_dump_indent(out, id, idlen, 4); 1104 BIO_puts(out, " Receipts From"); 1105 if (rlist) { 1106 BIO_puts(out, " List:\n"); 1107 gnames_stack_print(out, rlist); 1108 } else if (allorfirst == 1) 1109 BIO_puts(out, ": First Tier\n"); 1110 else if (allorfirst == 0) 1111 BIO_puts(out, ": All\n"); 1112 else 1113 BIO_printf(out, " Unknown (%d)\n", allorfirst); 1114 BIO_puts(out, " Receipts To:\n"); 1115 gnames_stack_print(out, rto); 1116 } 1117 if (rr) 1118 CMS_ReceiptRequest_free(rr); 1119 } 1120} 1121 1122static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK * ns) 1123{ 1124 int i; 1125 STACK_OF(GENERAL_NAMES) *ret; 1126 GENERAL_NAMES *gens = NULL; 1127 GENERAL_NAME *gen = NULL; 1128 ret = sk_GENERAL_NAMES_new_null(); 1129 if (!ret) 1130 goto err; 1131 for (i = 0; i < sk_num(ns); i++) { 1132 CONF_VALUE cnf; 1133 cnf.name = "email"; 1134 cnf.value = sk_value(ns, i); 1135 gen = v2i_GENERAL_NAME(NULL, NULL, &cnf); 1136 if (!gen) 1137 goto err; 1138 gens = GENERAL_NAMES_new(); 1139 if (!gens) 1140 goto err; 1141 if (!sk_GENERAL_NAME_push(gens, gen)) 1142 goto err; 1143 gen = NULL; 1144 if (!sk_GENERAL_NAMES_push(ret, gens)) 1145 goto err; 1146 gens = NULL; 1147 } 1148 1149 return ret; 1150 1151 err: 1152 if (ret) 1153 sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free); 1154 if (gens) 1155 GENERAL_NAMES_free(gens); 1156 if (gen) 1157 GENERAL_NAME_free(gen); 1158 return NULL; 1159} 1160 1161static CMS_ReceiptRequest *make_receipt_request(STACK * rr_to, 1162 int rr_allorfirst, 1163 STACK * rr_from) 1164{ 1165 STACK_OF(GENERAL_NAMES) *rct_to, *rct_from; 1166 CMS_ReceiptRequest *rr; 1167 rct_to = make_names_stack(rr_to); 1168 if (!rct_to) 1169 goto err; 1170 if (rr_from) { 1171 rct_from = make_names_stack(rr_from); 1172 if (!rct_from) 1173 goto err; 1174 } else 1175 rct_from = NULL; 1176 rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from, 1177 rct_to); 1178 return rr; 1179 err: 1180 return NULL; 1181} 1182 1183#endif 1184