apps/cms.c

   1 /* apps/cms.c */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  */
  53
  54 /* CMS utility function */
  55
  56 #include <stdio.h>
  57 #include <string.h>
  58 #include "apps.h"
  59
  60 #ifndef OPENSSL_NO_CMS
  61
  62 #include <openssl/crypto.h>
  63 #include <openssl/pem.h>
  64 #include <openssl/err.h>
  65 #include <openssl/x509_vfy.h>
  66 #include <openssl/x509v3.h>
  67 #include <openssl/cms.h>
  68
  69 #undef PROG
  70 #define PROG cms_main
  71 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
  72 static int cms_cb(int ok, X509_STORE_CTX *ctx);
  73 static void receipt_request_print(BIO *out, CMS_ContentInfo *cms);
  74 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to,
  75                                                 int rr_allorfirst,
  76                                         STACK_OF(OPENSSL_STRING) *rr_from);
  77 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
  78                         STACK_OF(OPENSSL_STRING) *param);
  79
  80 #define SMIME_OP        0x10
  81 #define SMIME_IP        0x20
  82 #define SMIME_SIGNERS   0x40
  83 #define SMIME_ENCRYPT           (1 | SMIME_OP)
  84 #define SMIME_DECRYPT           (2 | SMIME_IP)
  85 #define SMIME_SIGN              (3 | SMIME_OP | SMIME_SIGNERS)
  86 #define SMIME_VERIFY            (4 | SMIME_IP)
  87 #define SMIME_CMSOUT            (5 | SMIME_IP | SMIME_OP)
  88 #define SMIME_RESIGN            (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
  89 #define SMIME_DATAOUT           (7 | SMIME_IP)
  90 #define SMIME_DATA_CREATE       (8 | SMIME_OP)
  91 #define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
  92 #define SMIME_DIGEST_CREATE     (10 | SMIME_OP)
  93 #define SMIME_UNCOMPRESS        (11 | SMIME_IP)
  94 #define SMIME_COMPRESS          (12 | SMIME_OP)
  95 #define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
  96 #define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
  97 #define SMIME_SIGN_RECEIPT      (15 | SMIME_IP | SMIME_OP)
  98 #define SMIME_VERIFY_RECEIPT    (16 | SMIME_IP)
  99
 100 int verify_err = 0;
 101
 102 typedef struct cms_key_param_st cms_key_param;
 103
 104 struct cms_key_param_st
 105         {
 106         int idx;
 107         STACK_OF(OPENSSL_STRING)*param;
 108         cms_key_param *next;
 109         };
 110
 111 int MAIN(int, char **);
 112
 113 int MAIN(int argc, char **argv)
 114         {
 115         ENGINE *e = NULL;
 116         int operation = 0;
 117         int ret = 0;
 118         char **args;
 119         const char *inmode = "r", *outmode = "w";
 120         char *infile = NULL, *outfile = NULL, *rctfile = NULL;
 121         char *signerfile = NULL, *recipfile = NULL;
 122         STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
 123         char *certfile = NULL, *keyfile = NULL, *contfile=NULL;
 124         char *certsoutfile = NULL;
 125         const EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
 126         CMS_ContentInfo *cms = NULL, *rcms = NULL;
 127         X509_STORE *store = NULL;
 128         X509 *cert = NULL, *recip = NULL, *signer = NULL;
 129         EVP_PKEY *key = NULL;
 130         STACK_OF(X509) *encerts = NULL, *other = NULL;
 131         BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
 132         int badarg = 0;
 133         int flags = CMS_DETACHED, noout = 0, print = 0;
 134         int verify_retcode = 0;
 135         int rr_print = 0, rr_allorfirst = -1;
 136         STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
 137         CMS_ReceiptRequest *rr = NULL;
 138         char *to = NULL, *from = NULL, *subject = NULL;
 139         char *CAfile = NULL, *CApath = NULL;
 140         char *passargin = NULL, *passin = NULL;
 141         char *inrand = NULL;
 142         int need_rand = 0;
 143         const EVP_MD *sign_md = NULL;
 144         int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
 145         int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
 146 #ifndef OPENSSL_NO_ENGINE
 147         char *engine=NULL;
 148 #endif
 149         unsigned char *secret_key = NULL, *secret_keyid = NULL;
 150         unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
 151         size_t secret_keylen = 0, secret_keyidlen = 0;
 152
 153         cms_key_param *key_first = NULL, *key_param = NULL;
 154
 155         ASN1_OBJECT *econtent_type = NULL;
 156
 157         X509_VERIFY_PARAM *vpm = NULL;
 158
 159         args = argv + 1;
 160         ret = 1;
 161
 162         apps_startup();
 163
 164         if (bio_err == NULL)
 165                 {
 166                 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
 167                         BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT);
 168                 }
 169
 170         if (!load_config(bio_err, NULL))
 171                 goto end;
 172
 173         while (!badarg && *args && *args[0] == '-')
 174                 {
 175                 if (!strcmp (*args, "-encrypt"))
 176                         operation = SMIME_ENCRYPT;
 177                 else if (!strcmp (*args, "-decrypt"))
 178                         operation = SMIME_DECRYPT;
 179                 else if (!strcmp (*args, "-sign"))
 180                         operation = SMIME_SIGN;
 181                 else if (!strcmp (*args, "-sign_receipt"))
 182                         operation = SMIME_SIGN_RECEIPT;
 183                 else if (!strcmp (*args, "-resign"))
 184                         operation = SMIME_RESIGN;
 185                 else if (!strcmp (*args, "-verify"))
 186                         operation = SMIME_VERIFY;
 187                 else if (!strcmp (*args, "-verify_retcode"))
 188                         verify_retcode = 1;
 189                 else if (!strcmp(*args,"-verify_receipt"))
 190                         {
 191                         operation = SMIME_VERIFY_RECEIPT;
 192                         if (!args[1])
 193                                 goto argerr;
 194                         args++;
 195                         rctfile = *args;
 196                         }
 197                 else if (!strcmp (*args, "-cmsout"))
 198                         operation = SMIME_CMSOUT;
 199                 else if (!strcmp (*args, "-data_out"))
 200                         operation = SMIME_DATAOUT;
 201                 else if (!strcmp (*args, "-data_create"))
 202                         operation = SMIME_DATA_CREATE;
 203                 else if (!strcmp (*args, "-digest_verify"))
 204                         operation = SMIME_DIGEST_VERIFY;
 205                 else if (!strcmp (*args, "-digest_create"))
 206                         operation = SMIME_DIGEST_CREATE;
 207                 else if (!strcmp (*args, "-compress"))
 208                         operation = SMIME_COMPRESS;
 209                 else if (!strcmp (*args, "-uncompress"))
 210                         operation = SMIME_UNCOMPRESS;
 211                 else if (!strcmp (*args, "-EncryptedData_decrypt"))
 212                         operation = SMIME_ENCRYPTED_DECRYPT;
 213                 else if (!strcmp (*args, "-EncryptedData_encrypt"))
 214                         operation = SMIME_ENCRYPTED_ENCRYPT;
 215 #ifndef OPENSSL_NO_DES
 216                 else if (!strcmp (*args, "-des3"))
 217                                 cipher = EVP_des_ede3_cbc();
 218                 else if (!strcmp (*args, "-des"))
 219                                 cipher = EVP_des_cbc();
 220                 else if (!strcmp (*args, "-des3-wrap"))
 221                                 wrap_cipher = EVP_des_ede3_wrap();
 222 #endif
 223 #ifndef OPENSSL_NO_SEED
 224                 else if (!strcmp (*args, "-seed"))
 225                                 cipher = EVP_seed_cbc();
 226 #endif
 227 #ifndef OPENSSL_NO_RC2
 228                 else if (!strcmp (*args, "-rc2-40"))
 229                                 cipher = EVP_rc2_40_cbc();
 230                 else if (!strcmp (*args, "-rc2-128"))
 231                                 cipher = EVP_rc2_cbc();
 232                 else if (!strcmp (*args, "-rc2-64"))
 233                                 cipher = EVP_rc2_64_cbc();
 234 #endif
 235 #ifndef OPENSSL_NO_AES
 236                 else if (!strcmp(*args,"-aes128"))
 237                                 cipher = EVP_aes_128_cbc();
 238                 else if (!strcmp(*args,"-aes192"))
 239                                 cipher = EVP_aes_192_cbc();
 240                 else if (!strcmp(*args,"-aes256"))
 241                                 cipher = EVP_aes_256_cbc();
 242                 else if (!strcmp(*args,"-aes128-wrap"))
 243                                 wrap_cipher = EVP_aes_128_wrap();
 244                 else if (!strcmp(*args,"-aes192-wrap"))
 245                                 wrap_cipher = EVP_aes_192_wrap();
 246                 else if (!strcmp(*args,"-aes256-wrap"))
 247                                 wrap_cipher = EVP_aes_256_wrap();
 248 #endif
 249 #ifndef OPENSSL_NO_CAMELLIA
 250                 else if (!strcmp(*args,"-camellia128"))
 251                                 cipher = EVP_camellia_128_cbc();
 252                 else if (!strcmp(*args,"-camellia192"))
 253                                 cipher = EVP_camellia_192_cbc();
 254                 else if (!strcmp(*args,"-camellia256"))
 255                                 cipher = EVP_camellia_256_cbc();
 256 #endif
 257                 else if (!strcmp (*args, "-debug_decrypt"))
 258                                 flags |= CMS_DEBUG_DECRYPT;
 259                 else if (!strcmp (*args, "-text"))
 260                                 flags |= CMS_TEXT;
 261                 else if (!strcmp (*args, "-asciicrlf"))
 262                                 flags |= CMS_ASCIICRLF;
 263                 else if (!strcmp (*args, "-nointern"))
 264                                 flags |= CMS_NOINTERN;
 265                 else if (!strcmp (*args, "-noverify")
 266                         || !strcmp (*args, "-no_signer_cert_verify"))
 267                                 flags |= CMS_NO_SIGNER_CERT_VERIFY;
 268                 else if (!strcmp (*args, "-nocerts"))
 269                                 flags |= CMS_NOCERTS;
 270                 else if (!strcmp (*args, "-noattr"))
 271                                 flags |= CMS_NOATTR;
 272                 else if (!strcmp (*args, "-nodetach"))
 273                                 flags &= ~CMS_DETACHED;
 274                 else if (!strcmp (*args, "-nosmimecap"))
 275                                 flags |= CMS_NOSMIMECAP;
 276                 else if (!strcmp (*args, "-binary"))
 277                                 flags |= CMS_BINARY;
 278                 else if (!strcmp (*args, "-keyid"))
 279                                 flags |= CMS_USE_KEYID;
 280                 else if (!strcmp (*args, "-nosigs"))
 281                                 flags |= CMS_NOSIGS;
 282                 else if (!strcmp (*args, "-no_content_verify"))
 283                                 flags |= CMS_NO_CONTENT_VERIFY;
 284                 else if (!strcmp (*args, "-no_attr_verify"))
 285                                 flags |= CMS_NO_ATTR_VERIFY;
 286                 else if (!strcmp (*args, "-stream"))
 287                                 flags |= CMS_STREAM;
 288                 else if (!strcmp (*args, "-indef"))
 289                                 flags |= CMS_STREAM;
 290                 else if (!strcmp (*args, "-noindef"))
 291                                 flags &= ~CMS_STREAM;
 292                 else if (!strcmp (*args, "-nooldmime"))
 293                                 flags |= CMS_NOOLDMIMETYPE;
 294                 else if (!strcmp (*args, "-crlfeol"))
 295                                 flags |= CMS_CRLFEOL;
 296                 else if (!strcmp (*args, "-noout"))
 297                                 noout = 1;
 298                 else if (!strcmp (*args, "-receipt_request_print"))
 299                                 rr_print = 1;
 300                 else if (!strcmp (*args, "-receipt_request_all"))
 301                                 rr_allorfirst = 0;
 302                 else if (!strcmp (*args, "-receipt_request_first"))
 303                                 rr_allorfirst = 1;
 304                 else if (!strcmp(*args,"-receipt_request_from"))
 305                         {
 306                         if (!args[1])
 307                                 goto argerr;
 308                         args++;
 309                         if (!rr_from)
 310                                 rr_from = sk_OPENSSL_STRING_new_null();
 311                         sk_OPENSSL_STRING_push(rr_from, *args);
 312                         }
 313                 else if (!strcmp(*args,"-receipt_request_to"))
 314                         {
 315                         if (!args[1])
 316                                 goto argerr;
 317                         args++;
 318                         if (!rr_to)
 319                                 rr_to = sk_OPENSSL_STRING_new_null();
 320                         sk_OPENSSL_STRING_push(rr_to, *args);
 321                         }
 322                 else if (!strcmp (*args, "-print"))
 323                                 {
 324                                 noout = 1;
 325                                 print = 1;
 326                                 }
 327                 else if (!strcmp(*args,"-secretkey"))
 328                         {
 329                         long ltmp;
 330                         if (!args[1])
 331                                 goto argerr;
 332                         args++;
 333                         secret_key = string_to_hex(*args, &ltmp);
 334                         if (!secret_key)
 335                                 {
 336                                 BIO_printf(bio_err, "Invalid key %s\n", *args);
 337                                 goto argerr;
 338                                 }
 339                         secret_keylen = (size_t)ltmp;
 340                         }
 341                 else if (!strcmp(*args,"-secretkeyid"))
 342                         {
 343                         long ltmp;
 344                         if (!args[1])
 345                                 goto argerr;
 346                         args++;
 347                         secret_keyid = string_to_hex(*args, &ltmp);
 348                         if (!secret_keyid)
 349                                 {
 350                                 BIO_printf(bio_err, "Invalid id %s\n", *args);
 351                                 goto argerr;
 352                                 }
 353                         secret_keyidlen = (size_t)ltmp;
 354                         }
 355                 else if (!strcmp(*args,"-pwri_password"))
 356                         {
 357                         if (!args[1])
 358                                 goto argerr;
 359                         args++;
 360                         pwri_pass = (unsigned char *)*args;
 361                         }
 362                 else if (!strcmp(*args,"-econtent_type"))
 363                         {
 364                         if (!args[1])
 365                                 goto argerr;
 366                         args++;
 367                         econtent_type = OBJ_txt2obj(*args, 0);
 368                         if (!econtent_type)
 369                                 {
 370                                 BIO_printf(bio_err, "Invalid OID %s\n", *args);
 371                                 goto argerr;
 372                                 }
 373                         }
 374                 else if (!strcmp(*args,"-rand"))
 375                         {
 376                         if (!args[1])
 377                                 goto argerr;
 378                         args++;
 379                         inrand = *args;
 380                         need_rand = 1;
 381                         }
 382 #ifndef OPENSSL_NO_ENGINE
 383                 else if (!strcmp(*args,"-engine"))
 384                         {
 385                         if (!args[1])
 386                                 goto argerr;
 387                         engine = *++args;
 388                         }
 389 #endif
 390                 else if (!strcmp(*args,"-passin"))
 391                         {
 392                         if (!args[1])
 393                                 goto argerr;
 394                         passargin = *++args;
 395                         }
 396                 else if (!strcmp (*args, "-to"))
 397                         {
 398                         if (!args[1])
 399                                 goto argerr;
 400                         to = *++args;
 401                         }
 402                 else if (!strcmp (*args, "-from"))
 403                         {
 404                         if (!args[1])
 405                                 goto argerr;
 406                         from = *++args;
 407                         }
 408                 else if (!strcmp (*args, "-subject"))
 409                         {
 410                         if (!args[1])
 411                                 goto argerr;
 412                         subject = *++args;
 413                         }
 414                 else if (!strcmp (*args, "-signer"))
 415                         {
 416                         if (!args[1])
 417                                 goto argerr;
 418                         /* If previous -signer argument add signer to list */
 419
 420                         if (signerfile)
 421                                 {
 422                                 if (!sksigners)
 423                                         sksigners = sk_OPENSSL_STRING_new_null();
 424                                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 425                                 if (!keyfile)
 426                                         keyfile = signerfile;
 427                                 if (!skkeys)
 428                                         skkeys = sk_OPENSSL_STRING_new_null();
 429                                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 430                                 keyfile = NULL;
 431                                 }
 432                         signerfile = *++args;
 433                         }
 434                 else if (!strcmp (*args, "-recip"))
 435                         {
 436                         if (!args[1])
 437                                 goto argerr;
 438                         if (operation == SMIME_ENCRYPT)
 439                                 {
 440                                 if (!encerts)
 441                                         encerts = sk_X509_new_null();
 442                                 cert = load_cert(bio_err,*++args,FORMAT_PEM,
 443                                                 NULL, e,
 444                                                 "recipient certificate file");
 445                                 if (!cert)
 446                                         goto end;
 447                                 sk_X509_push(encerts, cert);
 448                                 cert = NULL;
 449                                 }
 450                         else
 451                                 recipfile = *++args;
 452                         }
 453                 else if (!strcmp (*args, "-certsout"))
 454                         {
 455                         if (!args[1])
 456                                 goto argerr;
 457                         certsoutfile = *++args;
 458                         }
 459                 else if (!strcmp (*args, "-md"))
 460                         {
 461                         if (!args[1])
 462                                 goto argerr;
 463                         sign_md = EVP_get_digestbyname(*++args);
 464                         if (sign_md == NULL)
 465                                 {
 466                                 BIO_printf(bio_err, "Unknown digest %s\n",
 467                                                         *args);
 468                                 goto argerr;
 469                                 }
 470                         }
 471                 else if (!strcmp (*args, "-inkey"))
 472                         {
 473                         if (!args[1])
 474                                 goto argerr;
 475                         /* If previous -inkey arument add signer to list */
 476                         if (keyfile)
 477                                 {
 478                                 if (!signerfile)
 479                                         {
 480                                         BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 481                                         goto argerr;
 482                                         }
 483                                 if (!sksigners)
 484                                         sksigners = sk_OPENSSL_STRING_new_null();
 485                                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 486                                 signerfile = NULL;
 487                                 if (!skkeys)
 488                                         skkeys = sk_OPENSSL_STRING_new_null();
 489                                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 490                                 }
 491                         keyfile = *++args;
 492                         }
 493                 else if (!strcmp (*args, "-keyform"))
 494                         {
 495                         if (!args[1])
 496                                 goto argerr;
 497                         keyform = str2fmt(*++args);
 498                         }
 499                 else if (!strcmp (*args, "-keyopt"))
 500                         {
 501                         int keyidx = -1;
 502                         if (!args[1])
 503                                 goto argerr;
 504                         if (operation == SMIME_ENCRYPT)
 505                                 {
 506                                 if (encerts)
 507                                         keyidx += sk_X509_num(encerts);
 508                                 }
 509                         else
 510                                 {
 511                                 if (keyfile || signerfile)
 512                                         keyidx++;
 513                                 if (skkeys)
 514                                         keyidx += sk_OPENSSL_STRING_num(skkeys);
 515                                 }
 516                         if (keyidx < 0)
 517                                 {
 518                                 BIO_printf(bio_err, "No key specified\n");
 519                                 goto argerr;
 520                                 }
 521                         if (key_param == NULL || key_param->idx != keyidx)
 522                                 {
 523                                 cms_key_param *nparam;
 524                                 nparam = OPENSSL_malloc(sizeof(cms_key_param));
 525                                 nparam->idx = keyidx;
 526                                 nparam->param = sk_OPENSSL_STRING_new_null();
 527                                 nparam->next = NULL;
 528                                 if (key_first == NULL)
 529                                         key_first = nparam;
 530                                 else
 531                                         key_param->next = nparam;
 532                                 key_param = nparam;
 533                                 }
 534                         sk_OPENSSL_STRING_push(key_param->param, *++args);
 535                         }
 536                 else if (!strcmp (*args, "-rctform"))
 537                         {
 538                         if (!args[1])
 539                                 goto argerr;
 540                         rctformat = str2fmt(*++args);
 541                         }
 542                 else if (!strcmp (*args, "-certfile"))
 543                         {
 544                         if (!args[1])
 545                                 goto argerr;
 546                         certfile = *++args;
 547                         }
 548                 else if (!strcmp (*args, "-CAfile"))
 549                         {
 550                         if (!args[1])
 551                                 goto argerr;
 552                         CAfile = *++args;
 553                         }
 554                 else if (!strcmp (*args, "-CApath"))
 555                         {
 556                         if (!args[1])
 557                                 goto argerr;
 558                         CApath = *++args;
 559                         }
 560                 else if (!strcmp (*args, "-in"))
 561                         {
 562                         if (!args[1])
 563                                 goto argerr;
 564                         infile = *++args;
 565                         }
 566                 else if (!strcmp (*args, "-inform"))
 567                         {
 568                         if (!args[1])
 569                                 goto argerr;
 570                         informat = str2fmt(*++args);
 571                         }
 572                 else if (!strcmp (*args, "-outform"))
 573                         {
 574                         if (!args[1])
 575                                 goto argerr;
 576                         outformat = str2fmt(*++args);
 577                         }
 578                 else if (!strcmp (*args, "-out"))
 579                         {
 580                         if (!args[1])
 581                                 goto argerr;
 582                         outfile = *++args;
 583                         }
 584                 else if (!strcmp (*args, "-content"))
 585                         {
 586                         if (!args[1])
 587                                 goto argerr;
 588                         contfile = *++args;
 589                         }
 590                 else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
 591                         continue;
 592                 else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
 593                         badarg = 1;
 594                 args++;
 595                 }
 596
 597         if (((rr_allorfirst != -1) || rr_from) && !rr_to)
 598                 {
 599                 BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 600                 goto argerr;
 601                 }
 602
 603         if (!(operation & SMIME_SIGNERS)  && (rr_to || rr_from))
 604                 {
 605                 BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 606                 goto argerr;
 607                 }
 608         if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners))
 609                 {
 610                 BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 611                 goto argerr;
 612                 }
 613
 614         if (operation & SMIME_SIGNERS)
 615                 {
 616                 if (keyfile && !signerfile)
 617                         {
 618                         BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 619                         goto argerr;
 620                         }
 621                 /* Check to see if any final signer needs to be appended */
 622                 if (signerfile)
 623                         {
 624                         if (!sksigners)
 625                                 sksigners = sk_OPENSSL_STRING_new_null();
 626                         sk_OPENSSL_STRING_push(sksigners, signerfile);
 627                         if (!skkeys)
 628                                 skkeys = sk_OPENSSL_STRING_new_null();
 629                         if (!keyfile)
 630                                 keyfile = signerfile;
 631                         sk_OPENSSL_STRING_push(skkeys, keyfile);
 632                         }
 633                 if (!sksigners)
 634                         {
 635                         BIO_printf(bio_err, "No signer certificate specified\n");
 636                         badarg = 1;
 637                         }
 638                 signerfile = NULL;
 639                 keyfile = NULL;
 640                 need_rand = 1;
 641                 }
 642
 643         else if (operation == SMIME_DECRYPT)
 644                 {
 645                 if (!recipfile && !keyfile && !secret_key && !pwri_pass)
 646                         {
 647                         BIO_printf(bio_err, "No recipient certificate or key specified\n");
 648                         badarg = 1;
 649                         }
 650                 }
 651         else if (operation == SMIME_ENCRYPT)
 652                 {
 653                 if (!*args && !secret_key && !pwri_pass && !encerts)
 654                         {
 655                         BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 656                         badarg = 1;
 657                         }
 658                 need_rand = 1;
 659                 }
 660         else if (!operation)
 661                 badarg = 1;
 662
 663         if (badarg)
 664                 {
 665                 argerr:
 666                 BIO_printf (bio_err, "Usage cms [options] cert.pem ...\n");
 667                 BIO_printf (bio_err, "where options are\n");
 668                 BIO_printf (bio_err, "-encrypt       encrypt message\n");
 669                 BIO_printf (bio_err, "-decrypt       decrypt encrypted message\n");
 670                 BIO_printf (bio_err, "-sign          sign message\n");
 671                 BIO_printf (bio_err, "-verify        verify signed message\n");
 672                 BIO_printf (bio_err, "-cmsout        output CMS structure\n");
 673 #ifndef OPENSSL_NO_DES
 674                 BIO_printf (bio_err, "-des3          encrypt with triple DES\n");
 675                 BIO_printf (bio_err, "-des           encrypt with DES\n");
 676 #endif
 677 #ifndef OPENSSL_NO_SEED
 678                 BIO_printf (bio_err, "-seed          encrypt with SEED\n");
 679 #endif
 680 #ifndef OPENSSL_NO_RC2
 681                 BIO_printf (bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
 682                 BIO_printf (bio_err, "-rc2-64        encrypt with RC2-64\n");
 683                 BIO_printf (bio_err, "-rc2-128       encrypt with RC2-128\n");
 684 #endif
 685 #ifndef OPENSSL_NO_AES
 686                 BIO_printf (bio_err, "-aes128, -aes192, -aes256\n");
 687                 BIO_printf (bio_err, "               encrypt PEM output with cbc aes\n");
 688 #endif
 689 #ifndef OPENSSL_NO_CAMELLIA
 690                 BIO_printf (bio_err, "-camellia128, -camellia192, -camellia256\n");
 691                 BIO_printf (bio_err, "               encrypt PEM output with cbc camellia\n");
 692 #endif
 693                 BIO_printf (bio_err, "-nointern      don't search certificates in message for signer\n");
 694                 BIO_printf (bio_err, "-nosigs        don't verify message signature\n");
 695                 BIO_printf (bio_err, "-noverify      don't verify signers certificate\n");
 696                 BIO_printf (bio_err, "-nocerts       don't include signers certificate when signing\n");
 697                 BIO_printf (bio_err, "-nodetach      use opaque signing\n");
 698                 BIO_printf (bio_err, "-noattr        don't include any signed attributes\n");
 699                 BIO_printf (bio_err, "-binary        don't translate message to text\n");
 700                 BIO_printf (bio_err, "-certfile file other certificates file\n");
 701                 BIO_printf (bio_err, "-certsout file certificate output file\n");
 702                 BIO_printf (bio_err, "-signer file   signer certificate file\n");
 703                 BIO_printf (bio_err, "-recip  file   recipient certificate file for decryption\n");
 704                 BIO_printf (bio_err, "-keyid         use subject key identifier\n");
 705                 BIO_printf (bio_err, "-in file       input file\n");
 706                 BIO_printf (bio_err, "-inform arg    input format SMIME (default), PEM or DER\n");
 707                 BIO_printf (bio_err, "-inkey file    input private key (if not signer or recipient)\n");
 708                 BIO_printf (bio_err, "-keyform arg   input private key format (PEM or ENGINE)\n");
 709                 BIO_printf (bio_err, "-keyopt nm:v   set public key parameters\n");
 710                 BIO_printf (bio_err, "-out file      output file\n");
 711                 BIO_printf (bio_err, "-outform arg   output format SMIME (default), PEM or DER\n");
 712                 BIO_printf (bio_err, "-content file  supply or override content for detached signature\n");
 713                 BIO_printf (bio_err, "-to addr       to address\n");
 714                 BIO_printf (bio_err, "-from ad       from address\n");
 715                 BIO_printf (bio_err, "-subject s     subject\n");
 716                 BIO_printf (bio_err, "-text          include or delete text MIME headers\n");
 717                 BIO_printf (bio_err, "-CApath dir    trusted certificates directory\n");
 718                 BIO_printf (bio_err, "-CAfile file   trusted certificates file\n");
 719                 BIO_printf (bio_err, "-trusted_first use locally trusted certificates first when building trust chain\n");
 720                 BIO_printf (bio_err, "-crl_check     check revocation status of signer's certificate using CRLs\n");
 721                 BIO_printf (bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
 722 #ifndef OPENSSL_NO_ENGINE
 723                 BIO_printf (bio_err, "-engine e      use engine e, possibly a hardware device.\n");
 724 #endif
 725                 BIO_printf (bio_err, "-passin arg    input file pass phrase source\n");
 726                 BIO_printf(bio_err,  "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 727                 BIO_printf(bio_err,  "               load the file (or the files in the directory) into\n");
 728                 BIO_printf(bio_err,  "               the random number generator\n");
 729                 BIO_printf (bio_err, "cert.pem       recipient certificate(s) for encryption\n");
 730                 goto end;
 731                 }
 732
 733 #ifndef OPENSSL_NO_ENGINE
 734         e = setup_engine(bio_err, engine, 0);
 735 #endif
 736
 737         if (!app_passwd(bio_err, passargin, NULL, &passin, NULL))
 738                 {
 739                 BIO_printf(bio_err, "Error getting password\n");
 740                 goto end;
 741                 }
 742
 743         if (need_rand)
 744                 {
 745                 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
 746                 if (inrand != NULL)
 747                         BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 748                                 app_RAND_load_files(inrand));
 749                 }
 750
 751         ret = 2;
 752
 753         if (!(operation & SMIME_SIGNERS))
 754                 flags &= ~CMS_DETACHED;
 755
 756         if (operation & SMIME_OP)
 757                 {
 758                 if (outformat == FORMAT_ASN1)
 759                         outmode = "wb";
 760                 }
 761         else
 762                 {
 763                 if (flags & CMS_BINARY)
 764                         outmode = "wb";
 765                 }
 766
 767         if (operation & SMIME_IP)
 768                 {
 769                 if (informat == FORMAT_ASN1)
 770                         inmode = "rb";
 771                 }
 772         else
 773                 {
 774                 if (flags & CMS_BINARY)
 775                         inmode = "rb";
 776                 }
 777
 778         if (operation == SMIME_ENCRYPT)
 779                 {
 780                 if (!cipher)
 781                         {
 782 #ifndef OPENSSL_NO_DES
 783                         cipher = EVP_des_ede3_cbc();
 784 #else
 785                         BIO_printf(bio_err, "No cipher selected\n");
 786                         goto end;
 787 #endif
 788                         }
 789
 790                 if (secret_key && !secret_keyid)
 791                         {
 792                         BIO_printf(bio_err, "No secret key id\n");
 793                         goto end;
 794                         }
 795
 796                 if (*args && !encerts)
 797                         encerts = sk_X509_new_null();
 798                 while (*args)
 799                         {
 800                         if (!(cert = load_cert(bio_err,*args,FORMAT_PEM,
 801                                 NULL, e, "recipient certificate file")))
 802                                 goto end;
 803                         sk_X509_push(encerts, cert);
 804                         cert = NULL;
 805                         args++;
 806                         }
 807                 }
 808
 809         if (certfile)
 810                 {
 811                 if (!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
 812                         e, "certificate file")))
 813                         {
 814                         ERR_print_errors(bio_err);
 815                         goto end;
 816                         }
 817                 }
 818
 819         if (recipfile && (operation == SMIME_DECRYPT))
 820                 {
 821                 if (!(recip = load_cert(bio_err,recipfile,FORMAT_PEM,NULL,
 822                         e, "recipient certificate file")))
 823                         {
 824                         ERR_print_errors(bio_err);
 825                         goto end;
 826                         }
 827                 }
 828
 829         if (operation == SMIME_SIGN_RECEIPT)
 830                 {
 831                 if (!(signer = load_cert(bio_err,signerfile,FORMAT_PEM,NULL,
 832                         e, "receipt signer certificate file")))
 833                         {
 834                         ERR_print_errors(bio_err);
 835                         goto end;
 836                         }
 837                 }
 838
 839         if (operation == SMIME_DECRYPT)
 840                 {
 841                 if (!keyfile)
 842                         keyfile = recipfile;
 843                 }
 844         else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT))
 845                 {
 846                 if (!keyfile)
 847                         keyfile = signerfile;
 848                 }
 849         else keyfile = NULL;
 850
 851         if (keyfile)
 852                 {
 853                 key = load_key(bio_err, keyfile, keyform, 0, passin, e,
 854                                "signing key file");
 855                 if (!key)
 856                         goto end;
 857                 }
 858
 859         if (infile)
 860                 {
 861                 if (!(in = BIO_new_file(infile, inmode)))
 862                         {
 863                         BIO_printf (bio_err,
 864                                  "Can't open input file %s\n", infile);
 865                         goto end;
 866                         }
 867                 }
 868         else
 869                 in = BIO_new_fp(stdin, BIO_NOCLOSE);
 870
 871         if (operation & SMIME_IP)
 872                 {
 873                 if (informat == FORMAT_SMIME)
 874                         cms = SMIME_read_CMS(in, &indata);
 875                 else if (informat == FORMAT_PEM)
 876                         cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
 877                 else if (informat == FORMAT_ASN1)
 878                         cms = d2i_CMS_bio(in, NULL);
 879                 else
 880                         {
 881                         BIO_printf(bio_err, "Bad input format for CMS file\n");
 882                         goto end;
 883                         }
 884
 885                 if (!cms)
 886                         {
 887                         BIO_printf(bio_err, "Error reading S/MIME message\n");
 888                         goto end;
 889                         }
 890                 if (contfile)
 891                         {
 892                         BIO_free(indata);
 893                         if (!(indata = BIO_new_file(contfile, "rb")))
 894                                 {
 895                                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
 896                                 goto end;
 897                                 }
 898                         }
 899                 if (certsoutfile)
 900                         {
 901                         STACK_OF(X509) *allcerts;
 902                         allcerts = CMS_get1_certs(cms);
 903                         if (!save_certs(certsoutfile, allcerts))
 904                                 {
 905                                 BIO_printf(bio_err,
 906                                                 "Error writing certs to %s\n",
 907                                                                 certsoutfile);
 908                                 ret = 5;
 909                                 goto end;
 910                                 }
 911                         sk_X509_pop_free(allcerts, X509_free);
 912                         }
 913                 }
 914
 915         if (rctfile)
 916                 {
 917                 char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 918                 if (!(rctin = BIO_new_file(rctfile, rctmode)))
 919                         {
 920                         BIO_printf (bio_err,
 921                                  "Can't open receipt file %s\n", rctfile);
 922                         goto end;
 923                         }
 924
 925                 if (rctformat == FORMAT_SMIME)
 926                         rcms = SMIME_read_CMS(rctin, NULL);
 927                 else if (rctformat == FORMAT_PEM)
 928                         rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 929                 else if (rctformat == FORMAT_ASN1)
 930                         rcms = d2i_CMS_bio(rctin, NULL);
 931                 else
 932                         {
 933                         BIO_printf(bio_err, "Bad input format for receipt\n");
 934                         goto end;
 935                         }
 936
 937                 if (!rcms)
 938                         {
 939                         BIO_printf(bio_err, "Error reading receipt\n");
 940                         goto end;
 941                         }
 942                 }
 943
 944         if (outfile)
 945                 {
 946                 if (!(out = BIO_new_file(outfile, outmode)))
 947                         {
 948                         BIO_printf (bio_err,
 949                                  "Can't open output file %s\n", outfile);
 950                         goto end;
 951                         }
 952                 }
 953         else
 954                 {
 955                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 956 #ifdef OPENSSL_SYS_VMS
 957                 {
 958                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 959                     out = BIO_push(tmpbio, out);
 960                 }
 961 #endif
 962                 }
 963
 964         if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT))
 965                 {
 966                 if (!(store = setup_verify(bio_err, CAfile, CApath)))
 967                         goto end;
 968                 X509_STORE_set_verify_cb(store, cms_cb);
 969                 if (vpm)
 970                         X509_STORE_set1_param(store, vpm);
 971                 }
 972
 973
 974         ret = 3;
 975
 976         if (operation == SMIME_DATA_CREATE)
 977                 {
 978                 cms = CMS_data_create(in, flags);
 979                 }
 980         else if (operation == SMIME_DIGEST_CREATE)
 981                 {
 982                 cms = CMS_digest_create(in, sign_md, flags);
 983                 }
 984         else if (operation == SMIME_COMPRESS)
 985                 {
 986                 cms = CMS_compress(in, -1, flags);
 987                 }
 988         else if (operation == SMIME_ENCRYPT)
 989                 {
 990                 int i;
 991                 flags |= CMS_PARTIAL;
 992                 cms = CMS_encrypt(NULL, in, cipher, flags);
 993                 if (!cms)
 994                         goto end;
 995                 for (i = 0; i < sk_X509_num(encerts); i++)
 996                         {
 997                         CMS_RecipientInfo *ri;
 998                         cms_key_param *kparam;
 999                         int tflags = flags;
1000                         X509 *x = sk_X509_value(encerts, i);
1001                         for(kparam = key_first; kparam; kparam = kparam->next)
1002                                 {
1003                                 if(kparam->idx == i)
1004                                         {
1005                                         tflags |= CMS_KEY_PARAM;
1006                                         break;
1007                                         }
1008                                 }
1009                         ri = CMS_add1_recipient_cert(cms, x, tflags);
1010                         if (!ri)
1011                                 goto end;
1012                         if (kparam)
1013                                 {
1014                                 EVP_PKEY_CTX *pctx;
1015                                 pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
1016                                 if (!cms_set_pkey_param(pctx, kparam->param))
1017                                         goto end;
1018                                 }
1019                         if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
1020                                 && wrap_cipher)
1021                                 {
1022                                 EVP_CIPHER_CTX *wctx;
1023                                 wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
1024                                 EVP_EncryptInit_ex(wctx, wrap_cipher,
1025                                                         NULL, NULL, NULL);
1026                                 }
1027                         }
1028
1029                 if (secret_key)
1030                         {
1031                         if (!CMS_add0_recipient_key(cms, NID_undef,
1032                                                 secret_key, secret_keylen,
1033                                                 secret_keyid, secret_keyidlen,
1034                                                 NULL, NULL, NULL))
1035                                 goto end;
1036                         /* NULL these because call absorbs them */
1037                         secret_key = NULL;
1038                         secret_keyid = NULL;
1039                         }
1040                 if (pwri_pass)
1041                         {
1042                         pwri_tmp = (unsigned char *)BUF_strdup((char *)pwri_pass);
1043                         if (!pwri_tmp)
1044                                 goto end;
1045                         if (!CMS_add0_recipient_password(cms,
1046                                                 -1, NID_undef, NID_undef,
1047                                                  pwri_tmp, -1, NULL))
1048                                 goto end;
1049                         pwri_tmp = NULL;
1050                         }
1051                 if (!(flags & CMS_STREAM))
1052                         {
1053                         if (!CMS_final(cms, in, NULL, flags))
1054                                 goto end;
1055                         }
1056                 }
1057         else if (operation == SMIME_ENCRYPTED_ENCRYPT)
1058                 {
1059                 cms = CMS_EncryptedData_encrypt(in, cipher,
1060                                                 secret_key, secret_keylen,
1061                                                 flags);
1062
1063                 }
1064         else if (operation == SMIME_SIGN_RECEIPT)
1065                 {
1066                 CMS_ContentInfo *srcms = NULL;
1067                 STACK_OF(CMS_SignerInfo) *sis;
1068                 CMS_SignerInfo *si;
1069                 sis = CMS_get0_SignerInfos(cms);
1070                 if (!sis)
1071                         goto end;
1072                 si = sk_CMS_SignerInfo_value(sis, 0);
1073                 srcms = CMS_sign_receipt(si, signer, key, other, flags);
1074                 if (!srcms)
1075                         goto end;
1076                 CMS_ContentInfo_free(cms);
1077                 cms = srcms;
1078                 }
1079         else if (operation & SMIME_SIGNERS)
1080                 {
1081                 int i;
1082                 /* If detached data content we enable streaming if
1083                  * S/MIME output format.
1084                  */
1085                 if (operation == SMIME_SIGN)
1086                         {
1087
1088                         if (flags & CMS_DETACHED)
1089                                 {
1090                                 if (outformat == FORMAT_SMIME)
1091                                         flags |= CMS_STREAM;
1092                                 }
1093                         flags |= CMS_PARTIAL;
1094                         cms = CMS_sign(NULL, NULL, other, in, flags);
1095                         if (!cms)
1096                                 goto end;
1097                         if (econtent_type)
1098                                 CMS_set1_eContentType(cms, econtent_type);
1099
1100                         if (rr_to)
1101                                 {
1102                                 rr = make_receipt_request(rr_to, rr_allorfirst,
1103                                                                 rr_from);
1104                                 if (!rr)
1105                                         {
1106                                         BIO_puts(bio_err,
1107                                 "Signed Receipt Request Creation Error\n");
1108                                         goto end;
1109                                         }
1110                                 }
1111                         }
1112                 else
1113                         flags |= CMS_REUSE_DIGEST;
1114                 for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++)
1115                         {
1116                         CMS_SignerInfo *si;
1117                         cms_key_param *kparam;
1118                         int tflags = flags;
1119                         signerfile = sk_OPENSSL_STRING_value(sksigners, i);
1120                         keyfile = sk_OPENSSL_STRING_value(skkeys, i);
1121
1122                         signer = load_cert(bio_err, signerfile,FORMAT_PEM, NULL,
1123                                         e, "signer certificate");
1124                         if (!signer)
1125                                 goto end;
1126                         key = load_key(bio_err, keyfile, keyform, 0, passin, e,
1127                                "signing key file");
1128                         if (!key)
1129                                 goto end;
1130                         for(kparam = key_first; kparam; kparam = kparam->next)
1131                                 {
1132                                 if(kparam->idx == i)
1133                                         {
1134                                         tflags |= CMS_KEY_PARAM;
1135                                         break;
1136                                         }
1137                                 }
1138                         si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
1139                         if (!si)
1140                                 goto end;
1141                         if (kparam)
1142                                 {
1143                                 EVP_PKEY_CTX *pctx;
1144                                 pctx = CMS_SignerInfo_get0_pkey_ctx(si);
1145                                 if (!cms_set_pkey_param(pctx, kparam->param))
1146                                         goto end;
1147                                 }
1148                         if (rr && !CMS_add1_ReceiptRequest(si, rr))
1149                                 goto end;
1150                         X509_free(signer);
1151                         signer = NULL;
1152                         EVP_PKEY_free(key);
1153                         key = NULL;
1154                         }
1155                 /* If not streaming or resigning finalize structure */
1156                 if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM))
1157                         {
1158                         if (!CMS_final(cms, in, NULL, flags))
1159                                 goto end;
1160                         }
1161                 }
1162
1163         if (!cms)
1164                 {
1165                 BIO_printf(bio_err, "Error creating CMS structure\n");
1166                 goto end;
1167                 }
1168
1169         ret = 4;
1170         if (operation == SMIME_DECRYPT)
1171                 {
1172                 if (flags & CMS_DEBUG_DECRYPT)
1173                         CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
1174
1175                 if (secret_key)
1176                         {
1177                         if (!CMS_decrypt_set1_key(cms,
1178                                                 secret_key, secret_keylen,
1179                                                 secret_keyid, secret_keyidlen))
1180                                 {
1181                                 BIO_puts(bio_err,
1182                                         "Error decrypting CMS using secret key\n");
1183                                 goto end;
1184                                 }
1185                         }
1186
1187                 if (key)
1188                         {
1189                         if (!CMS_decrypt_set1_pkey(cms, key, recip))
1190                                 {
1191                                 BIO_puts(bio_err,
1192                                         "Error decrypting CMS using private key\n");
1193                                 goto end;
1194                                 }
1195                         }
1196
1197                 if (pwri_pass)
1198                         {
1199                         if (!CMS_decrypt_set1_password(cms, pwri_pass, -1))
1200                                 {
1201                                 BIO_puts(bio_err,
1202                                         "Error decrypting CMS using password\n");
1203                                 goto end;
1204                                 }
1205                         }
1206
1207                 if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags))
1208                         {
1209                         BIO_printf(bio_err, "Error decrypting CMS structure\n");
1210                         goto end;
1211                         }
1212                 }
1213         else if (operation == SMIME_DATAOUT)
1214                 {
1215                 if (!CMS_data(cms, out, flags))
1216                         goto end;
1217                 }
1218         else if (operation == SMIME_UNCOMPRESS)
1219                 {
1220                 if (!CMS_uncompress(cms, indata, out, flags))
1221                         goto end;
1222                 }
1223         else if (operation == SMIME_DIGEST_VERIFY)
1224                 {
1225                 if (CMS_digest_verify(cms, indata, out, flags) > 0)
1226                         BIO_printf(bio_err, "Verification successful\n");
1227                 else
1228                         {
1229                         BIO_printf(bio_err, "Verification failure\n");
1230                         goto end;
1231                         }
1232                 }
1233         else if (operation == SMIME_ENCRYPTED_DECRYPT)
1234                 {
1235                 if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1236                                                 indata, out, flags))
1237                         goto end;
1238                 }
1239         else if (operation == SMIME_VERIFY)
1240                 {
1241                 if (CMS_verify(cms, other, store, indata, out, flags) > 0)
1242                         BIO_printf(bio_err, "Verification successful\n");
1243                 else
1244                         {
1245                         BIO_printf(bio_err, "Verification failure\n");
1246                         if (verify_retcode)
1247                                 ret = verify_err + 32;
1248                         goto end;
1249                         }
1250                 if (signerfile)
1251                         {
1252                         STACK_OF(X509) *signers;
1253                         signers = CMS_get0_signers(cms);
1254                         if (!save_certs(signerfile, signers))
1255                                 {
1256                                 BIO_printf(bio_err,
1257                                                 "Error writing signers to %s\n",
1258                                                                 signerfile);
1259                                 ret = 5;
1260                                 goto end;
1261                                 }
1262                         sk_X509_free(signers);
1263                         }
1264                 if (rr_print)
1265                         receipt_request_print(bio_err, cms);
1266
1267                 }
1268         else if (operation == SMIME_VERIFY_RECEIPT)
1269                 {
1270                 if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
1271                         BIO_printf(bio_err, "Verification successful\n");
1272                 else
1273                         {
1274                         BIO_printf(bio_err, "Verification failure\n");
1275                         goto end;
1276                         }
1277                 }
1278         else
1279                 {
1280                 if (noout)
1281                         {
1282                         if (print)
1283                                 CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
1284                         }
1285                 else if (outformat == FORMAT_SMIME)
1286                         {
1287                         if (to)
1288                                 BIO_printf(out, "To: %s\n", to);
1289                         if (from)
1290                                 BIO_printf(out, "From: %s\n", from);
1291                         if (subject)
1292                                 BIO_printf(out, "Subject: %s\n", subject);
1293                         if (operation == SMIME_RESIGN)
1294                                 ret = SMIME_write_CMS(out, cms, indata, flags);
1295                         else
1296                                 ret = SMIME_write_CMS(out, cms, in, flags);
1297                         }
1298                 else if (outformat == FORMAT_PEM)
1299                         ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1300                 else if (outformat == FORMAT_ASN1)
1301                         ret = i2d_CMS_bio_stream(out,cms, in, flags);
1302                 else
1303                         {
1304                         BIO_printf(bio_err, "Bad output format for CMS file\n");
1305                         goto end;
1306                         }
1307                 if (ret <= 0)
1308                         {
1309                         ret = 6;
1310                         goto end;
1311                         }
1312                 }
1313         ret = 0;
1314 end:
1315         if (ret)
1316                 ERR_print_errors(bio_err);
1317         if (need_rand)
1318                 app_RAND_write_file(NULL, bio_err);
1319         sk_X509_pop_free(encerts, X509_free);
1320         sk_X509_pop_free(other, X509_free);
1321         if (vpm)
1322                 X509_VERIFY_PARAM_free(vpm);
1323         if (sksigners)
1324                 sk_OPENSSL_STRING_free(sksigners);
1325         if (skkeys)
1326                 sk_OPENSSL_STRING_free(skkeys);
1327         if (secret_key)
1328                 OPENSSL_free(secret_key);
1329         if (secret_keyid)
1330                 OPENSSL_free(secret_keyid);
1331         if (pwri_tmp)
1332                 OPENSSL_free(pwri_tmp);
1333         if (econtent_type)
1334                 ASN1_OBJECT_free(econtent_type);
1335         if (rr)
1336                 CMS_ReceiptRequest_free(rr);
1337         if (rr_to)
1338                 sk_OPENSSL_STRING_free(rr_to);
1339         if (rr_from)
1340                 sk_OPENSSL_STRING_free(rr_from);
1341         for(key_param = key_first; key_param;)
1342                 {
1343                 cms_key_param *tparam;
1344                 sk_OPENSSL_STRING_free(key_param->param);
1345                 tparam = key_param->next;
1346                 OPENSSL_free(key_param);
1347                 key_param = tparam;
1348                 }
1349         X509_STORE_free(store);
1350         X509_free(cert);
1351         X509_free(recip);
1352         X509_free(signer);
1353         EVP_PKEY_free(key);
1354         CMS_ContentInfo_free(cms);
1355         CMS_ContentInfo_free(rcms);
1356         BIO_free(rctin);
1357         BIO_free(in);
1358         BIO_free(indata);
1359         BIO_free_all(out);
1360         if (passin) OPENSSL_free(passin);
1361         return (ret);
1362 }
1363
1364 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1365         {
1366         int i;
1367         BIO *tmp;
1368         if (!signerfile)
1369                 return 1;
1370         tmp = BIO_new_file(signerfile, "w");
1371         if (!tmp) return 0;
1372         for(i = 0; i < sk_X509_num(signers); i++)
1373                 PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1374         BIO_free(tmp);
1375         return 1;
1376         }
1377
1378
1379 /* Minimal callback just to output policy info (if any) */
1380
1381 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1382         {
1383         int error;
1384
1385         error = X509_STORE_CTX_get_error(ctx);
1386
1387         verify_err = error;
1388
1389         if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1390                 && ((error != X509_V_OK) || (ok != 2)))
1391                 return ok;
1392
1393         policies_print(NULL, ctx);
1394
1395         return ok;
1396
1397         }
1398
1399 static void gnames_stack_print(BIO *out, STACK_OF(GENERAL_NAMES) *gns)
1400         {
1401         STACK_OF(GENERAL_NAME) *gens;
1402         GENERAL_NAME *gen;
1403         int i, j;
1404         for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++)
1405                 {
1406                 gens = sk_GENERAL_NAMES_value(gns, i);
1407                 for (j = 0; j < sk_GENERAL_NAME_num(gens); j++)
1408                         {
1409                         gen = sk_GENERAL_NAME_value(gens, j);
1410                         BIO_puts(out, "    ");
1411                         GENERAL_NAME_print(out, gen);
1412                         BIO_puts(out, "\n");
1413                         }
1414                 }
1415         return;
1416         }
1417
1418 static void receipt_request_print(BIO *out, CMS_ContentInfo *cms)
1419         {
1420         STACK_OF(CMS_SignerInfo) *sis;
1421         CMS_SignerInfo *si;
1422         CMS_ReceiptRequest *rr;
1423         int allorfirst;
1424         STACK_OF(GENERAL_NAMES) *rto, *rlist;
1425         ASN1_STRING *scid;
1426         int i, rv;
1427         sis = CMS_get0_SignerInfos(cms);
1428         for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++)
1429                 {
1430                 si = sk_CMS_SignerInfo_value(sis, i);
1431                 rv = CMS_get1_ReceiptRequest(si, &rr);
1432                 BIO_printf(bio_err, "Signer %d:\n", i + 1);
1433                 if (rv == 0)
1434                         BIO_puts(bio_err, "  No Receipt Request\n");
1435                 else if (rv < 0)
1436                         {
1437                         BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1438                         ERR_print_errors(bio_err);
1439                         }
1440                 else
1441                         {
1442                         char *id;
1443                         int idlen;
1444                         CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1445                                                         &rlist, &rto);
1446                         BIO_puts(out, "  Signed Content ID:\n");
1447                         idlen = ASN1_STRING_length(scid);
1448                         id = (char *)ASN1_STRING_data(scid);
1449                         BIO_dump_indent(out, id, idlen, 4);
1450                         BIO_puts(out, "  Receipts From");
1451                         if (rlist)
1452                                 {
1453                                 BIO_puts(out, " List:\n");
1454                                 gnames_stack_print(out, rlist);
1455                                 }
1456                         else if (allorfirst == 1)
1457                                 BIO_puts(out, ": First Tier\n");
1458                         else if (allorfirst == 0)
1459                                 BIO_puts(out, ": All\n");
1460                         else
1461                                 BIO_printf(out, " Unknown (%d)\n", allorfirst);
1462                         BIO_puts(out, "  Receipts To:\n");
1463                         gnames_stack_print(out, rto);
1464                         }
1465                 if (rr)
1466                         CMS_ReceiptRequest_free(rr);
1467                 }
1468         }
1469
1470 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
1471         {
1472         int i;
1473         STACK_OF(GENERAL_NAMES) *ret;
1474         GENERAL_NAMES *gens = NULL;
1475         GENERAL_NAME *gen = NULL;
1476         ret = sk_GENERAL_NAMES_new_null();
1477         if (!ret)
1478                 goto err;
1479         for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++)
1480                 {
1481                 char *str = sk_OPENSSL_STRING_value(ns, i);
1482                 gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1483                 if (!gen)
1484                         goto err;
1485                 gens = GENERAL_NAMES_new();
1486                 if (!gens)
1487                         goto err;
1488                 if (!sk_GENERAL_NAME_push(gens, gen))
1489                         goto err;
1490                 gen = NULL;
1491                 if (!sk_GENERAL_NAMES_push(ret, gens))
1492                         goto err;
1493                 gens = NULL;
1494                 }
1495
1496         return ret;
1497
1498         err:
1499         if (ret)
1500                 sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1501         if (gens)
1502                 GENERAL_NAMES_free(gens);
1503         if (gen)
1504                 GENERAL_NAME_free(gen);
1505         return NULL;
1506         }
1507
1508
1509 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to,
1510                                                 int rr_allorfirst,
1511                                                 STACK_OF(OPENSSL_STRING) *rr_from)
1512         {
1513         STACK_OF(GENERAL_NAMES) *rct_to, *rct_from;
1514         CMS_ReceiptRequest *rr;
1515         rct_to = make_names_stack(rr_to);
1516         if (!rct_to)
1517                 goto err;
1518         if (rr_from)
1519                 {
1520                 rct_from = make_names_stack(rr_from);
1521                 if (!rct_from)
1522                         goto err;
1523                 }
1524         else
1525                 rct_from = NULL;
1526         rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1527                                                 rct_to);
1528         return rr;
1529         err:
1530         return NULL;
1531         }
1532
1533 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
1534                         STACK_OF(OPENSSL_STRING) *param)
1535         {
1536         char *keyopt;
1537         int i;
1538         if (sk_OPENSSL_STRING_num(param) <= 0)
1539                 return 1;
1540         for (i = 0; i < sk_OPENSSL_STRING_num(param); i++)
1541                 {
1542                 keyopt = sk_OPENSSL_STRING_value(param, i);
1543                 if (pkey_ctrl_string(pctx, keyopt) <= 0)
1544                         {
1545                         BIO_printf(bio_err, "parameter error \"%s\"\n",
1546                                                 keyopt);
1547                         ERR_print_errors(bio_err);
1548                         return 0;
1549                         }
1550                 }
1551         return 1;
1552         }
1553
1554 #endif