apps/cms.c

   1 /*
   2  * Copyright 2008-2021 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 /* CMS utility function */
  11
  12 #include <stdio.h>
  13 #include <string.h>
  14 #include "apps.h"
  15 #include "progs.h"
  16
  17 #include <openssl/crypto.h>
  18 #include <openssl/pem.h>
  19 #include <openssl/err.h>
  20 #include <openssl/x509_vfy.h>
  21 #include <openssl/x509v3.h>
  22 #include <openssl/cms.h>
  23
  24 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
  25 static int cms_cb(int ok, X509_STORE_CTX *ctx);
  26 static void receipt_request_print(CMS_ContentInfo *cms);
  27 static CMS_ReceiptRequest *make_receipt_request(
  28     STACK_OF(OPENSSL_STRING) *rr_to, int rr_allorfirst,
  29     STACK_OF(OPENSSL_STRING) *rr_from, OSSL_LIB_CTX *libctx);
  30 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
  31                               STACK_OF(OPENSSL_STRING) *param);
  32
  33 #define SMIME_OP        0x10
  34 #define SMIME_IP        0x20
  35 #define SMIME_SIGNERS   0x40
  36 #define SMIME_ENCRYPT           (1 | SMIME_OP)
  37 #define SMIME_DECRYPT           (2 | SMIME_IP)
  38 #define SMIME_SIGN              (3 | SMIME_OP | SMIME_SIGNERS)
  39 #define SMIME_VERIFY            (4 | SMIME_IP)
  40 #define SMIME_CMSOUT            (5 | SMIME_IP | SMIME_OP)
  41 #define SMIME_RESIGN            (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
  42 #define SMIME_DATAOUT           (7 | SMIME_IP)
  43 #define SMIME_DATA_CREATE       (8 | SMIME_OP)
  44 #define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
  45 #define SMIME_DIGEST_CREATE     (10 | SMIME_OP)
  46 #define SMIME_UNCOMPRESS        (11 | SMIME_IP)
  47 #define SMIME_COMPRESS          (12 | SMIME_OP)
  48 #define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
  49 #define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
  50 #define SMIME_SIGN_RECEIPT      (15 | SMIME_IP | SMIME_OP)
  51 #define SMIME_VERIFY_RECEIPT    (16 | SMIME_IP)
  52
  53 static int verify_err = 0;
  54
  55 typedef struct cms_key_param_st cms_key_param;
  56
  57 struct cms_key_param_st {
  58     int idx;
  59     STACK_OF(OPENSSL_STRING) *param;
  60     cms_key_param *next;
  61 };
  62
  63 typedef enum OPTION_choice {
  64     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  65     OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENCRYPT,
  66     OPT_DECRYPT, OPT_SIGN, OPT_CADES, OPT_SIGN_RECEIPT, OPT_RESIGN,
  67     OPT_VERIFY, OPT_VERIFY_RETCODE, OPT_VERIFY_RECEIPT,
  68     OPT_CMSOUT, OPT_DATA_OUT, OPT_DATA_CREATE, OPT_DIGEST_VERIFY,
  69     OPT_DIGEST_CREATE, OPT_COMPRESS, OPT_UNCOMPRESS,
  70     OPT_ED_DECRYPT, OPT_ED_ENCRYPT, OPT_DEBUG_DECRYPT, OPT_TEXT,
  71     OPT_ASCIICRLF, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCERTS,
  72     OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, OPT_BINARY, OPT_KEYID,
  73     OPT_NOSIGS, OPT_NO_CONTENT_VERIFY, OPT_NO_ATTR_VERIFY, OPT_INDEF,
  74     OPT_NOINDEF, OPT_CRLFEOL, OPT_NOOUT, OPT_RR_PRINT,
  75     OPT_RR_ALL, OPT_RR_FIRST, OPT_RCTFORM, OPT_CERTFILE, OPT_CAFILE,
  76     OPT_CAPATH, OPT_CASTORE, OPT_NOCAPATH, OPT_NOCAFILE, OPT_NOCASTORE,
  77     OPT_CONTENT, OPT_PRINT, OPT_NAMEOPT,
  78     OPT_SECRETKEY, OPT_SECRETKEYID, OPT_PWRI_PASSWORD, OPT_ECONTENT_TYPE,
  79     OPT_PASSIN, OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP,
  80     OPT_CERTSOUT, OPT_MD, OPT_INKEY, OPT_KEYFORM, OPT_KEYOPT, OPT_RR_FROM,
  81     OPT_RR_TO, OPT_AES128_WRAP, OPT_AES192_WRAP, OPT_AES256_WRAP,
  82     OPT_3DES_WRAP, OPT_WRAP, OPT_ENGINE,
  83     OPT_R_ENUM,
  84     OPT_PROV_ENUM, OPT_CONFIG,
  85     OPT_V_ENUM,
  86     OPT_CIPHER,
  87     OPT_ORIGINATOR
  88 } OPTION_CHOICE;
  89
  90 const OPTIONS cms_options[] = {
  91     {OPT_HELP_STR, 1, '-', "Usage: %s [options] [cert...]\n"},
  92
  93     OPT_SECTION("General"),
  94     {"help", OPT_HELP, '-', "Display this summary"},
  95     {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"},
  96     {"outform", OPT_OUTFORM, 'c',
  97      "Output format SMIME (default), PEM or DER"},
  98     {"in", OPT_IN, '<', "Input file"},
  99     {"out", OPT_OUT, '>', "Output file"},
 100     {"debug_decrypt", OPT_DEBUG_DECRYPT, '-',
 101         "Disable MMA protection and return an error if no recipient found"
 102         " (see documentation)"},
 103     {"stream", OPT_INDEF, '-', "Enable CMS streaming"},
 104     {"indef", OPT_INDEF, '-', "Same as -stream"},
 105     {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"},
 106     {"crlfeol", OPT_CRLFEOL, '-', "Use CRLF as EOL termination instead of CR only" },
 107     {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
 108     {"CApath", OPT_CAPATH, '/', "trusted certificates directory"},
 109     {"CAstore", OPT_CASTORE, ':', "trusted certificates store URI"},
 110     {"no-CAfile", OPT_NOCAFILE, '-',
 111      "Do not load the default certificates file"},
 112     {"no-CApath", OPT_NOCAPATH, '-',
 113      "Do not load certificates from the default certificates directory"},
 114     {"no-CAstore", OPT_NOCASTORE, '-',
 115      "Do not load certificates from the default certificates store"},
 116 # ifndef OPENSSL_NO_ENGINE
 117     {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
 118 # endif
 119     OPT_CONFIG_OPTION,
 120
 121     OPT_SECTION("Action"),
 122     {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"},
 123     {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"},
 124     {"sign", OPT_SIGN, '-', "Sign message"},
 125     {"sign_receipt", OPT_SIGN_RECEIPT, '-', "Generate a signed receipt for the message"},
 126     {"resign", OPT_RESIGN, '-', "Resign a signed message"},
 127     {"cades", OPT_CADES, '-', "Include or check signingCertificate (CAdES-BES)"},
 128     {"verify", OPT_VERIFY, '-', "Verify signed message"},
 129     {"verify_retcode", OPT_VERIFY_RETCODE, '-',
 130         "Exit non-zero on verification failure"},
 131     {"verify_receipt", OPT_VERIFY_RECEIPT, '<',
 132         "Verify receipts; exit if receipt signatures do not verify"},
 133     {"digest_verify", OPT_DIGEST_VERIFY, '-',
 134         "Verify a CMS \"DigestedData\" object and output it"},
 135     {"digest_create", OPT_DIGEST_CREATE, '-',
 136         "Create a CMS \"DigestedData\" object"},
 137     {"compress", OPT_COMPRESS, '-', "Create a CMS \"CompressedData\" object"},
 138     {"uncompress", OPT_UNCOMPRESS, '-',
 139         "Uncompress a CMS \"CompressedData\" object"},
 140     {"EncryptedData_decrypt", OPT_ED_DECRYPT, '-',
 141         "Decrypt CMS \"EncryptedData\" object using symmetric key"},
 142     {"EncryptedData_encrypt", OPT_ED_ENCRYPT, '-',
 143         "Create CMS \"EncryptedData\" object using symmetric key"},
 144     {"data_out", OPT_DATA_OUT, '-', "Copy CMS \"Data\" object to output"},
 145     {"data_create", OPT_DATA_CREATE, '-', "Create a CMS \"Data\" object"},
 146     {"cmsout", OPT_CMSOUT, '-', "Output CMS structure"},
 147     {"no_content_verify", OPT_NO_CONTENT_VERIFY, '-',
 148         "Do not verify signed content signatures"},
 149     {"no_attr_verify", OPT_NO_ATTR_VERIFY, '-',
 150         "Do not verify signed attribute signatures"},
 151     {"nointern", OPT_NOINTERN, '-',
 152         "Don't search certificates in message for signer"},
 153     {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"},
 154
 155     OPT_SECTION("Formatting"),
 156     {"text", OPT_TEXT, '-', "Include or delete text MIME headers"},
 157     {"asciicrlf", OPT_ASCIICRLF, '-',
 158         "Perform CRLF canonicalisation when signing"},
 159     {"nodetach", OPT_NODETACH, '-', "Use opaque signing"},
 160     {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"},
 161     {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"},
 162     {"binary", OPT_BINARY, '-', "Don't translate message to text"},
 163     {"keyid", OPT_KEYID, '-', "Use subject key identifier"},
 164     {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"},
 165     {"nocerts", OPT_NOCERTS, '-',
 166      "Don't include signers certificate when signing"},
 167     {"noout", OPT_NOOUT, '-',
 168         "For the -cmsout operation do not output the parsed CMS structure"},
 169     {"receipt_request_print", OPT_RR_PRINT, '-', "Print CMS Receipt Request" },
 170     {"receipt_request_all", OPT_RR_ALL, '-',
 171         "When signing, create a receipt request for all recipients"},
 172     {"receipt_request_first", OPT_RR_FIRST, '-',
 173         "When signing, create a receipt request for first recipient"},
 174     {"rctform", OPT_RCTFORM, 'F', "Receipt file format"},
 175     {"certfile", OPT_CERTFILE, '<', "Other certificates file"},
 176     {"content", OPT_CONTENT, '<',
 177      "Supply or override content for detached signature"},
 178     {"print", OPT_PRINT, '-',
 179      "For the -cmsout operation print out all fields of the CMS structure"},
 180     {"nameopt", OPT_NAMEOPT, 's',
 181      "For the -print option specifies various strings printing options"},
 182     {"certsout", OPT_CERTSOUT, '>', "Certificate output file"},
 183
 184     OPT_SECTION("Keying"),
 185     {"secretkey", OPT_SECRETKEY, 's',
 186         "Use specified hex-encoded key to decrypt/encrypt recipients or content"},
 187     {"secretkeyid", OPT_SECRETKEYID, 's',
 188         "Identity of the -secretkey for CMS \"KEKRecipientInfo\" object"},
 189     {"pwri_password", OPT_PWRI_PASSWORD, 's',
 190         "Specific password for recipient"},
 191     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
 192     {"inkey", OPT_INKEY, 's',
 193      "Input private key (if not signer or recipient)"},
 194     {"keyform", OPT_KEYFORM, 'f', "Input private key format (ENGINE, other values ignored)"},
 195     {"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"},
 196
 197     OPT_SECTION("Mail header"),
 198     {"econtent_type", OPT_ECONTENT_TYPE, 's', "OID for external content"},
 199     {"to", OPT_TO, 's', "To address"},
 200     {"from", OPT_FROM, 's', "From address"},
 201     {"subject", OPT_SUBJECT, 's', "Subject"},
 202     {"signer", OPT_SIGNER, 's', "Signer certificate file"},
 203     {"originator", OPT_ORIGINATOR, 's', "Originator certificate file"},
 204     {"recip", OPT_RECIP, '<', "Recipient cert file for decryption"},
 205     {"receipt_request_from", OPT_RR_FROM, 's',
 206         "Create signed receipt request with specified email address"},
 207     {"receipt_request_to", OPT_RR_TO, 's',
 208         "Create signed receipt targeted to specified address"},
 209
 210     OPT_SECTION("Encryption"),
 211     {"md", OPT_MD, 's', "Digest algorithm to use when signing or resigning"},
 212     {"", OPT_CIPHER, '-', "Any supported cipher"},
 213
 214     OPT_SECTION("Key-wrapping"),
 215     {"aes128-wrap", OPT_AES128_WRAP, '-', "Use AES128 to wrap key"},
 216     {"aes192-wrap", OPT_AES192_WRAP, '-', "Use AES192 to wrap key"},
 217     {"aes256-wrap", OPT_AES256_WRAP, '-', "Use AES256 to wrap key"},
 218 # ifndef OPENSSL_NO_DES
 219     {"des3-wrap", OPT_3DES_WRAP, '-', "Use 3DES-EDE to wrap key"},
 220 # endif
 221     {"wrap", OPT_WRAP, 's', "Any wrap cipher to wrap key"},
 222
 223     OPT_R_OPTIONS,
 224     OPT_V_OPTIONS,
 225     OPT_PROV_OPTIONS,
 226
 227     OPT_PARAMETERS(),
 228     {"cert", 0, 0, "Recipient certs (optional; used only when encrypting)"},
 229     {NULL}
 230 };
 231
 232 static CMS_ContentInfo *load_content_info(int informat, BIO *in, BIO **indata,
 233                                           const char *name,
 234                                           OSSL_LIB_CTX *libctx,
 235                                           const char *propq)
 236 {
 237     CMS_ContentInfo *ret, *ci;
 238
 239     ret = CMS_ContentInfo_new_ex(libctx, propq);
 240     if (ret == NULL) {
 241         BIO_printf(bio_err, "Error allocating CMS_contentinfo\n");
 242         return NULL;
 243     }
 244     switch (informat) {
 245     case FORMAT_SMIME:
 246         ci = SMIME_read_CMS_ex(in, indata, &ret);
 247         break;
 248     case FORMAT_PEM:
 249         ci = PEM_read_bio_CMS(in, &ret, NULL, NULL);
 250         break;
 251     case FORMAT_ASN1:
 252         ci = d2i_CMS_bio(in, &ret);
 253         break;
 254     default:
 255         BIO_printf(bio_err, "Bad input format for %s\n", name);
 256         goto err;
 257     }
 258     if (ci == NULL) {
 259         BIO_printf(bio_err, "Error reading %s Content Info\n", name);
 260         goto err;
 261     }
 262     return ret;
 263 err:
 264     CMS_ContentInfo_free(ret);
 265     return NULL;
 266 }
 267
 268 int cms_main(int argc, char **argv)
 269 {
 270     CONF *conf = NULL;
 271     ASN1_OBJECT *econtent_type = NULL;
 272     BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
 273     CMS_ContentInfo *cms = NULL, *rcms = NULL;
 274     CMS_ReceiptRequest *rr = NULL;
 275     ENGINE *e = NULL;
 276     EVP_PKEY *key = NULL;
 277     EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
 278     EVP_MD *sign_md = NULL;
 279     STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
 280     STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
 281     STACK_OF(X509) *encerts = NULL, *other = NULL;
 282     X509 *cert = NULL, *recip = NULL, *signer = NULL, *originator = NULL;
 283     X509_STORE *store = NULL;
 284     X509_VERIFY_PARAM *vpm = NULL;
 285     char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
 286     const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL;
 287     char *certsoutfile = NULL, *digestname = NULL;
 288     int noCAfile = 0, noCApath = 0, noCAstore = 0;
 289     char *infile = NULL, *outfile = NULL, *rctfile = NULL;
 290     char *passinarg = NULL, *passin = NULL, *signerfile = NULL;
 291     char *originatorfile = NULL, *recipfile = NULL, *ciphername = NULL;
 292     char *to = NULL, *from = NULL, *subject = NULL, *prog;
 293     cms_key_param *key_first = NULL, *key_param = NULL;
 294     int flags = CMS_DETACHED, noout = 0, print = 0, keyidx = -1, vpmtouched = 0;
 295     int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
 296     int operation = 0, ret = 1, rr_print = 0, rr_allorfirst = -1;
 297     int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
 298     size_t secret_keylen = 0, secret_keyidlen = 0;
 299     unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
 300     unsigned char *secret_key = NULL, *secret_keyid = NULL;
 301     long ltmp;
 302     const char *mime_eol = "\n";
 303     OPTION_CHOICE o;
 304     OSSL_LIB_CTX *libctx = app_get0_libctx();
 305
 306     if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
 307         return 1;
 308
 309     prog = opt_init(argc, argv, cms_options);
 310     while ((o = opt_next()) != OPT_EOF) {
 311         switch (o) {
 312         case OPT_EOF:
 313         case OPT_ERR:
 314  opthelp:
 315             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 316             goto end;
 317         case OPT_HELP:
 318             opt_help(cms_options);
 319             ret = 0;
 320             goto end;
 321         case OPT_INFORM:
 322             if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat))
 323                 goto opthelp;
 324             break;
 325         case OPT_OUTFORM:
 326             if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat))
 327                 goto opthelp;
 328             break;
 329         case OPT_OUT:
 330             outfile = opt_arg();
 331             break;
 332         case OPT_ENCRYPT:
 333             operation = SMIME_ENCRYPT;
 334             break;
 335         case OPT_DECRYPT:
 336             operation = SMIME_DECRYPT;
 337             break;
 338         case OPT_SIGN:
 339             operation = SMIME_SIGN;
 340             break;
 341         case OPT_SIGN_RECEIPT:
 342             operation = SMIME_SIGN_RECEIPT;
 343             break;
 344         case OPT_RESIGN:
 345             operation = SMIME_RESIGN;
 346             break;
 347         case OPT_VERIFY:
 348             operation = SMIME_VERIFY;
 349             break;
 350         case OPT_VERIFY_RETCODE:
 351             verify_retcode = 1;
 352             break;
 353         case OPT_VERIFY_RECEIPT:
 354             operation = SMIME_VERIFY_RECEIPT;
 355             rctfile = opt_arg();
 356             break;
 357         case OPT_CMSOUT:
 358             operation = SMIME_CMSOUT;
 359             break;
 360         case OPT_DATA_OUT:
 361             operation = SMIME_DATAOUT;
 362             break;
 363         case OPT_DATA_CREATE:
 364             operation = SMIME_DATA_CREATE;
 365             break;
 366         case OPT_DIGEST_VERIFY:
 367             operation = SMIME_DIGEST_VERIFY;
 368             break;
 369         case OPT_DIGEST_CREATE:
 370             operation = SMIME_DIGEST_CREATE;
 371             break;
 372         case OPT_COMPRESS:
 373             operation = SMIME_COMPRESS;
 374             break;
 375         case OPT_UNCOMPRESS:
 376             operation = SMIME_UNCOMPRESS;
 377             break;
 378         case OPT_ED_DECRYPT:
 379             operation = SMIME_ENCRYPTED_DECRYPT;
 380             break;
 381         case OPT_ED_ENCRYPT:
 382             operation = SMIME_ENCRYPTED_ENCRYPT;
 383             break;
 384         case OPT_DEBUG_DECRYPT:
 385             flags |= CMS_DEBUG_DECRYPT;
 386             break;
 387         case OPT_TEXT:
 388             flags |= CMS_TEXT;
 389             break;
 390         case OPT_ASCIICRLF:
 391             flags |= CMS_ASCIICRLF;
 392             break;
 393         case OPT_NOINTERN:
 394             flags |= CMS_NOINTERN;
 395             break;
 396         case OPT_NOVERIFY:
 397             flags |= CMS_NO_SIGNER_CERT_VERIFY;
 398             break;
 399         case OPT_NOCERTS:
 400             flags |= CMS_NOCERTS;
 401             break;
 402         case OPT_NOATTR:
 403             flags |= CMS_NOATTR;
 404             break;
 405         case OPT_NODETACH:
 406             flags &= ~CMS_DETACHED;
 407             break;
 408         case OPT_NOSMIMECAP:
 409             flags |= CMS_NOSMIMECAP;
 410             break;
 411         case OPT_BINARY:
 412             flags |= CMS_BINARY;
 413             break;
 414         case OPT_CADES:
 415             flags |= CMS_CADES;
 416             break;
 417         case OPT_KEYID:
 418             flags |= CMS_USE_KEYID;
 419             break;
 420         case OPT_NOSIGS:
 421             flags |= CMS_NOSIGS;
 422             break;
 423         case OPT_NO_CONTENT_VERIFY:
 424             flags |= CMS_NO_CONTENT_VERIFY;
 425             break;
 426         case OPT_NO_ATTR_VERIFY:
 427             flags |= CMS_NO_ATTR_VERIFY;
 428             break;
 429         case OPT_INDEF:
 430             flags |= CMS_STREAM;
 431             break;
 432         case OPT_NOINDEF:
 433             flags &= ~CMS_STREAM;
 434             break;
 435         case OPT_CRLFEOL:
 436             mime_eol = "\r\n";
 437             flags |= CMS_CRLFEOL;
 438             break;
 439         case OPT_NOOUT:
 440             noout = 1;
 441             break;
 442         case OPT_RR_PRINT:
 443             rr_print = 1;
 444             break;
 445         case OPT_RR_ALL:
 446             rr_allorfirst = 0;
 447             break;
 448         case OPT_RR_FIRST:
 449             rr_allorfirst = 1;
 450             break;
 451         case OPT_RCTFORM:
 452             if (rctformat == FORMAT_ASN1) {
 453                 if (!opt_format(opt_arg(),
 454                                 OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat))
 455                     goto opthelp;
 456             } else {
 457                 rcms = load_content_info(rctformat, rctin, NULL, "recipient",
 458                                          libctx, app_get0_propq());
 459             }
 460             break;
 461         case OPT_CERTFILE:
 462             certfile = opt_arg();
 463             break;
 464         case OPT_CAFILE:
 465             CAfile = opt_arg();
 466             break;
 467         case OPT_CAPATH:
 468             CApath = opt_arg();
 469             break;
 470         case OPT_CASTORE:
 471             CAstore = opt_arg();
 472             break;
 473         case OPT_NOCAFILE:
 474             noCAfile = 1;
 475             break;
 476         case OPT_NOCAPATH:
 477             noCApath = 1;
 478             break;
 479         case OPT_NOCASTORE:
 480             noCAstore = 1;
 481             break;
 482         case OPT_IN:
 483             infile = opt_arg();
 484             break;
 485         case OPT_CONTENT:
 486             contfile = opt_arg();
 487             break;
 488         case OPT_RR_FROM:
 489             if (rr_from == NULL
 490                 && (rr_from = sk_OPENSSL_STRING_new_null()) == NULL)
 491                 goto end;
 492             sk_OPENSSL_STRING_push(rr_from, opt_arg());
 493             break;
 494         case OPT_RR_TO:
 495             if (rr_to == NULL
 496                 && (rr_to = sk_OPENSSL_STRING_new_null()) == NULL)
 497                 goto end;
 498             sk_OPENSSL_STRING_push(rr_to, opt_arg());
 499             break;
 500         case OPT_PRINT:
 501             noout = print = 1;
 502             break;
 503         case OPT_NAMEOPT:
 504             if (!set_nameopt(opt_arg()))
 505                 goto opthelp;
 506             break;
 507         case OPT_SECRETKEY:
 508             if (secret_key != NULL) {
 509                 BIO_printf(bio_err, "Invalid key (supplied twice) %s\n",
 510                            opt_arg());
 511                 goto opthelp;
 512             }
 513             secret_key = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 514             if (secret_key == NULL) {
 515                 BIO_printf(bio_err, "Invalid key %s\n", opt_arg());
 516                 goto end;
 517             }
 518             secret_keylen = (size_t)ltmp;
 519             break;
 520         case OPT_SECRETKEYID:
 521             if (secret_keyid != NULL) {
 522                 BIO_printf(bio_err, "Invalid id (supplied twice) %s\n",
 523                            opt_arg());
 524                 goto opthelp;
 525             }
 526             secret_keyid = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 527             if (secret_keyid == NULL) {
 528                 BIO_printf(bio_err, "Invalid id %s\n", opt_arg());
 529                 goto opthelp;
 530             }
 531             secret_keyidlen = (size_t)ltmp;
 532             break;
 533         case OPT_PWRI_PASSWORD:
 534             pwri_pass = (unsigned char *)opt_arg();
 535             break;
 536         case OPT_ECONTENT_TYPE:
 537             if (econtent_type != NULL) {
 538                 BIO_printf(bio_err, "Invalid OID (supplied twice) %s\n",
 539                            opt_arg());
 540                 goto opthelp;
 541             }
 542             econtent_type = OBJ_txt2obj(opt_arg(), 0);
 543             if (econtent_type == NULL) {
 544                 BIO_printf(bio_err, "Invalid OID %s\n", opt_arg());
 545                 goto opthelp;
 546             }
 547             break;
 548         case OPT_ENGINE:
 549             e = setup_engine(opt_arg(), 0);
 550             break;
 551         case OPT_PASSIN:
 552             passinarg = opt_arg();
 553             break;
 554         case OPT_TO:
 555             to = opt_arg();
 556             break;
 557         case OPT_FROM:
 558             from = opt_arg();
 559             break;
 560         case OPT_SUBJECT:
 561             subject = opt_arg();
 562             break;
 563         case OPT_CERTSOUT:
 564             certsoutfile = opt_arg();
 565             break;
 566         case OPT_MD:
 567             digestname = opt_arg();
 568             break;
 569         case OPT_SIGNER:
 570             /* If previous -signer argument add signer to list */
 571             if (signerfile != NULL) {
 572                 if (sksigners == NULL
 573                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 574                     goto end;
 575                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 576                 if (keyfile == NULL)
 577                     keyfile = signerfile;
 578                 if (skkeys == NULL
 579                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 580                     goto end;
 581                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 582                 keyfile = NULL;
 583             }
 584             signerfile = opt_arg();
 585             break;
 586         case OPT_ORIGINATOR:
 587              originatorfile = opt_arg();
 588              break;
 589         case OPT_INKEY:
 590             /* If previous -inkey argument add signer to list */
 591             if (keyfile != NULL) {
 592                 if (signerfile == NULL) {
 593                     BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 594                     goto end;
 595                 }
 596                 if (sksigners == NULL
 597                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 598                     goto end;
 599                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 600                 signerfile = NULL;
 601                 if (skkeys == NULL
 602                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 603                     goto end;
 604                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 605             }
 606             keyfile = opt_arg();
 607             break;
 608         case OPT_KEYFORM:
 609             if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
 610                 goto opthelp;
 611             break;
 612         case OPT_RECIP:
 613             if (operation == SMIME_ENCRYPT) {
 614                 if (encerts == NULL && (encerts = sk_X509_new_null()) == NULL)
 615                     goto end;
 616                 cert = load_cert(opt_arg(), "recipient certificate file");
 617                 if (cert == NULL)
 618                     goto end;
 619                 sk_X509_push(encerts, cert);
 620                 cert = NULL;
 621             } else {
 622                 recipfile = opt_arg();
 623             }
 624             break;
 625         case OPT_CIPHER:
 626             ciphername = opt_unknown();
 627             break;
 628         case OPT_KEYOPT:
 629             keyidx = -1;
 630             if (operation == SMIME_ENCRYPT) {
 631                 if (encerts != NULL)
 632                     keyidx += sk_X509_num(encerts);
 633             } else {
 634                 if (keyfile != NULL || signerfile != NULL)
 635                     keyidx++;
 636                 if (skkeys != NULL)
 637                     keyidx += sk_OPENSSL_STRING_num(skkeys);
 638             }
 639             if (keyidx < 0) {
 640                 BIO_printf(bio_err, "No key specified\n");
 641                 goto opthelp;
 642             }
 643             if (key_param == NULL || key_param->idx != keyidx) {
 644                 cms_key_param *nparam;
 645                 nparam = app_malloc(sizeof(*nparam), "key param buffer");
 646                 if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL) {
 647                     OPENSSL_free(nparam);
 648                     goto end;
 649                 }
 650                 nparam->idx = keyidx;
 651                 nparam->next = NULL;
 652                 if (key_first == NULL)
 653                     key_first = nparam;
 654                 else
 655                     key_param->next = nparam;
 656                 key_param = nparam;
 657             }
 658             sk_OPENSSL_STRING_push(key_param->param, opt_arg());
 659             break;
 660         case OPT_V_CASES:
 661             if (!opt_verify(o, vpm))
 662                 goto end;
 663             vpmtouched++;
 664             break;
 665         case OPT_R_CASES:
 666             if (!opt_rand(o))
 667                 goto end;
 668             break;
 669         case OPT_PROV_CASES:
 670             if (!opt_provider(o))
 671                 goto end;
 672             break;
 673         case OPT_CONFIG:
 674             conf = app_load_config_modules(opt_arg());
 675             if (conf == NULL)
 676                 goto end;
 677             break;
 678         case OPT_3DES_WRAP:
 679 # ifndef OPENSSL_NO_DES
 680             wrap_cipher = (EVP_CIPHER *)EVP_des_ede3_wrap();
 681 # endif
 682             break;
 683         case OPT_AES128_WRAP:
 684             wrap_cipher = (EVP_CIPHER *)EVP_aes_128_wrap();
 685             break;
 686         case OPT_AES192_WRAP:
 687             wrap_cipher = (EVP_CIPHER *)EVP_aes_192_wrap();
 688             break;
 689         case OPT_AES256_WRAP:
 690             wrap_cipher = (EVP_CIPHER *)EVP_aes_256_wrap();
 691             break;
 692         case OPT_WRAP:
 693             if (!opt_cipher(opt_unknown(), &wrap_cipher))
 694                 goto end;
 695             break;
 696         }
 697     }
 698     if (!app_RAND_load())
 699         goto end;
 700
 701     if (digestname != NULL) {
 702         if (!opt_md(digestname, &sign_md))
 703             goto end;
 704     }
 705     if (ciphername != NULL) {
 706         if (!opt_cipher(ciphername, &cipher))
 707             goto end;
 708     }
 709
 710     /* Remaining args are files to process. */
 711     argc = opt_num_rest();
 712     argv = opt_rest();
 713
 714     if ((rr_allorfirst != -1 || rr_from != NULL) && rr_to == NULL) {
 715         BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 716         goto opthelp;
 717     }
 718
 719     if (!(operation & SMIME_SIGNERS) && (rr_to != NULL || rr_from != NULL)) {
 720         BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 721         goto opthelp;
 722     }
 723     if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) {
 724         BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 725         goto opthelp;
 726     }
 727
 728     if ((flags & CMS_CADES) != 0) {
 729         if ((flags & CMS_NOATTR) != 0) {
 730             BIO_puts(bio_err, "Incompatible options: "
 731                      "CAdES requires signed attributes\n");
 732             goto opthelp;
 733         }
 734         if (operation == SMIME_VERIFY
 735                 && (flags & (CMS_NO_SIGNER_CERT_VERIFY | CMS_NO_ATTR_VERIFY)) != 0) {
 736             BIO_puts(bio_err, "Incompatible options: CAdES validation requires"
 737                      " certs and signed attributes validations\n");
 738             goto opthelp;
 739         }
 740     }
 741
 742     if (operation & SMIME_SIGNERS) {
 743         if (keyfile != NULL && signerfile == NULL) {
 744             BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 745             goto opthelp;
 746         }
 747         /* Check to see if any final signer needs to be appended */
 748         if (signerfile != NULL) {
 749             if (sksigners == NULL
 750                 && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 751                 goto end;
 752             sk_OPENSSL_STRING_push(sksigners, signerfile);
 753             if (skkeys == NULL && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 754                 goto end;
 755             if (keyfile == NULL)
 756                 keyfile = signerfile;
 757             sk_OPENSSL_STRING_push(skkeys, keyfile);
 758         }
 759         if (sksigners == NULL) {
 760             BIO_printf(bio_err, "No signer certificate specified\n");
 761             goto opthelp;
 762         }
 763         signerfile = NULL;
 764         keyfile = NULL;
 765     } else if (operation == SMIME_DECRYPT) {
 766         if (recipfile == NULL && keyfile == NULL
 767             && secret_key == NULL && pwri_pass == NULL) {
 768             BIO_printf(bio_err,
 769                        "No recipient certificate or key specified\n");
 770             goto opthelp;
 771         }
 772     } else if (operation == SMIME_ENCRYPT) {
 773         if (*argv == NULL && secret_key == NULL
 774             && pwri_pass == NULL && encerts == NULL) {
 775             BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 776             goto opthelp;
 777         }
 778     } else if (!operation) {
 779         BIO_printf(bio_err, "No operation option (-encrypt|-decrypt|-sign|-verify|...) specified.\n");
 780         goto opthelp;
 781     }
 782
 783     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 784         BIO_printf(bio_err, "Error getting password\n");
 785         goto end;
 786     }
 787
 788     ret = 2;
 789
 790     if (!(operation & SMIME_SIGNERS))
 791         flags &= ~CMS_DETACHED;
 792
 793     if (!(operation & SMIME_OP))
 794         if (flags & CMS_BINARY)
 795             outformat = FORMAT_BINARY;
 796
 797     if (!(operation & SMIME_IP))
 798         if (flags & CMS_BINARY)
 799             informat = FORMAT_BINARY;
 800
 801     if (operation == SMIME_ENCRYPT) {
 802         if (!cipher) {
 803 # ifndef OPENSSL_NO_DES
 804             cipher = (EVP_CIPHER *)EVP_des_ede3_cbc();
 805 # else
 806             BIO_printf(bio_err, "No cipher selected\n");
 807             goto end;
 808 # endif
 809         }
 810
 811         if (secret_key && !secret_keyid) {
 812             BIO_printf(bio_err, "No secret key id\n");
 813             goto end;
 814         }
 815
 816         if (*argv && encerts == NULL)
 817             if ((encerts = sk_X509_new_null()) == NULL)
 818                 goto end;
 819         while (*argv) {
 820             if ((cert = load_cert(*argv, "recipient certificate file")) == NULL)
 821                 goto end;
 822             sk_X509_push(encerts, cert);
 823             cert = NULL;
 824             argv++;
 825         }
 826     }
 827
 828     if (certfile != NULL) {
 829         if (!load_certs(certfile, 0, &other, NULL, "certificate file")) {
 830             ERR_print_errors(bio_err);
 831             goto end;
 832         }
 833     }
 834
 835     if (recipfile != NULL && (operation == SMIME_DECRYPT)) {
 836         if ((recip = load_cert(recipfile,
 837                                "recipient certificate file")) == NULL) {
 838             ERR_print_errors(bio_err);
 839             goto end;
 840         }
 841     }
 842
 843     if (originatorfile != NULL) {
 844         if ((originator = load_cert(originatorfile,
 845                                     "originator certificate file")) == NULL) {
 846              ERR_print_errors(bio_err);
 847              goto end;
 848         }
 849     }
 850
 851     if (operation == SMIME_SIGN_RECEIPT) {
 852         if ((signer = load_cert(signerfile,
 853                                 "receipt signer certificate file")) == NULL) {
 854             ERR_print_errors(bio_err);
 855             goto end;
 856         }
 857     }
 858
 859     if ((operation == SMIME_DECRYPT) || (operation == SMIME_ENCRYPT)) {
 860         if (keyfile == NULL)
 861             keyfile = recipfile;
 862     } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
 863         if (keyfile == NULL)
 864             keyfile = signerfile;
 865     } else {
 866         keyfile = NULL;
 867     }
 868
 869     if (keyfile != NULL) {
 870         key = load_key(keyfile, keyform, 0, passin, e, "signing key");
 871         if (key == NULL)
 872             goto end;
 873     }
 874
 875     in = bio_open_default(infile, 'r', informat);
 876     if (in == NULL)
 877         goto end;
 878
 879     if (operation & SMIME_IP) {
 880         cms = load_content_info(informat, in, &indata, "SMIME", libctx, app_get0_propq());
 881         if (cms == NULL)
 882             goto end;
 883         if (contfile != NULL) {
 884             BIO_free(indata);
 885             if ((indata = BIO_new_file(contfile, "rb")) == NULL) {
 886                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
 887                 goto end;
 888             }
 889         }
 890         if (certsoutfile != NULL) {
 891             STACK_OF(X509) *allcerts;
 892             allcerts = CMS_get1_certs(cms);
 893             if (!save_certs(certsoutfile, allcerts)) {
 894                 BIO_printf(bio_err,
 895                            "Error writing certs to %s\n", certsoutfile);
 896                 ret = 5;
 897                 goto end;
 898             }
 899             sk_X509_pop_free(allcerts, X509_free);
 900         }
 901     }
 902
 903     if (rctfile != NULL) {
 904         char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 905         if ((rctin = BIO_new_file(rctfile, rctmode)) == NULL) {
 906             BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
 907             goto end;
 908         }
 909
 910         rcms = load_content_info(rctformat, rctin, NULL, "recipient", libctx,
 911                                  app_get0_propq());
 912         if (rcms == NULL)
 913             goto end;
 914     }
 915
 916     out = bio_open_default(outfile, 'w', outformat);
 917     if (out == NULL)
 918         goto end;
 919
 920     if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
 921         if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath,
 922                                   CAstore, noCAstore)) == NULL)
 923             goto end;
 924         X509_STORE_set_verify_cb(store, cms_cb);
 925         if (vpmtouched)
 926             X509_STORE_set1_param(store, vpm);
 927     }
 928
 929     ret = 3;
 930
 931     if (operation == SMIME_DATA_CREATE) {
 932         cms = CMS_data_create_ex(in, flags, libctx, app_get0_propq());
 933     } else if (operation == SMIME_DIGEST_CREATE) {
 934         cms = CMS_digest_create_ex(in, sign_md, flags, libctx, app_get0_propq());
 935     } else if (operation == SMIME_COMPRESS) {
 936         cms = CMS_compress(in, -1, flags);
 937     } else if (operation == SMIME_ENCRYPT) {
 938         int i;
 939         flags |= CMS_PARTIAL;
 940         cms = CMS_encrypt_ex(NULL, in, cipher, flags, libctx, app_get0_propq());
 941         if (cms == NULL)
 942             goto end;
 943         for (i = 0; i < sk_X509_num(encerts); i++) {
 944             CMS_RecipientInfo *ri;
 945             cms_key_param *kparam;
 946             int tflags = flags | CMS_KEY_PARAM; /* This flag enforces allocating the EVP_PKEY_CTX for the recipient here */
 947             EVP_PKEY_CTX *pctx;
 948             X509 *x = sk_X509_value(encerts, i);
 949             int res;
 950
 951             for (kparam = key_first; kparam; kparam = kparam->next) {
 952                 if (kparam->idx == i) {
 953                     break;
 954                 }
 955             }
 956             ri = CMS_add1_recipient(cms, x, key, originator, tflags);
 957             if (ri == NULL)
 958                 goto end;
 959
 960             pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
 961             if (kparam != NULL) {
 962                 if (!cms_set_pkey_param(pctx, kparam->param))
 963                     goto end;
 964             }
 965
 966             res = EVP_PKEY_CTX_ctrl(pctx, -1, -1,
 967                                     EVP_PKEY_CTRL_CIPHER,
 968                                     EVP_CIPHER_nid(cipher), NULL);
 969             if (res <= 0 && res != -2)
 970                 goto end;
 971
 972             if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
 973                     && wrap_cipher != NULL) {
 974                 EVP_CIPHER_CTX *wctx;
 975                 wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
 976                 EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
 977             }
 978         }
 979
 980         if (secret_key != NULL) {
 981             if (!CMS_add0_recipient_key(cms, NID_undef,
 982                                         secret_key, secret_keylen,
 983                                         secret_keyid, secret_keyidlen,
 984                                         NULL, NULL, NULL))
 985                 goto end;
 986             /* NULL these because call absorbs them */
 987             secret_key = NULL;
 988             secret_keyid = NULL;
 989         }
 990         if (pwri_pass != NULL) {
 991             pwri_tmp = (unsigned char *)OPENSSL_strdup((char *)pwri_pass);
 992             if (pwri_tmp == NULL)
 993                 goto end;
 994             if (CMS_add0_recipient_password(cms,
 995                                             -1, NID_undef, NID_undef,
 996                                             pwri_tmp, -1, NULL) == NULL)
 997                 goto end;
 998             pwri_tmp = NULL;
 999         }
1000         if (!(flags & CMS_STREAM)) {
1001             if (!CMS_final(cms, in, NULL, flags))
1002                 goto end;
1003         }
1004     } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
1005         cms = CMS_EncryptedData_encrypt_ex(in, cipher, secret_key,
1006                                            secret_keylen, flags, libctx, app_get0_propq());
1007
1008     } else if (operation == SMIME_SIGN_RECEIPT) {
1009         CMS_ContentInfo *srcms = NULL;
1010         STACK_OF(CMS_SignerInfo) *sis;
1011         CMS_SignerInfo *si;
1012         sis = CMS_get0_SignerInfos(cms);
1013         if (sis == NULL)
1014             goto end;
1015         si = sk_CMS_SignerInfo_value(sis, 0);
1016         srcms = CMS_sign_receipt(si, signer, key, other, flags);
1017         if (srcms == NULL)
1018             goto end;
1019         CMS_ContentInfo_free(cms);
1020         cms = srcms;
1021     } else if (operation & SMIME_SIGNERS) {
1022         int i;
1023         /*
1024          * If detached data content we enable streaming if S/MIME output
1025          * format.
1026          */
1027         if (operation == SMIME_SIGN) {
1028
1029             if (flags & CMS_DETACHED) {
1030                 if (outformat == FORMAT_SMIME)
1031                     flags |= CMS_STREAM;
1032             }
1033             flags |= CMS_PARTIAL;
1034             cms = CMS_sign_ex(NULL, NULL, other, in, flags, libctx, app_get0_propq());
1035             if (cms == NULL)
1036                 goto end;
1037             if (econtent_type != NULL)
1038                 CMS_set1_eContentType(cms, econtent_type);
1039
1040             if (rr_to != NULL) {
1041                 rr = make_receipt_request(rr_to, rr_allorfirst, rr_from, libctx);
1042                 if (rr == NULL) {
1043                     BIO_puts(bio_err,
1044                              "Signed Receipt Request Creation Error\n");
1045                     goto end;
1046                 }
1047             }
1048         } else {
1049             flags |= CMS_REUSE_DIGEST;
1050         }
1051         for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
1052             CMS_SignerInfo *si;
1053             cms_key_param *kparam;
1054             int tflags = flags;
1055             signerfile = sk_OPENSSL_STRING_value(sksigners, i);
1056             keyfile = sk_OPENSSL_STRING_value(skkeys, i);
1057
1058             signer = load_cert(signerfile, "signer certificate");
1059             if (signer == NULL) {
1060                 ret = 2;
1061                 goto end;
1062             }
1063             key = load_key(keyfile, keyform, 0, passin, e, "signing key");
1064             if (key == NULL) {
1065                 ret = 2;
1066                 goto end;
1067             }
1068
1069             for (kparam = key_first; kparam; kparam = kparam->next) {
1070                 if (kparam->idx == i) {
1071                     tflags |= CMS_KEY_PARAM;
1072                     break;
1073                 }
1074             }
1075             si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
1076             if (si == NULL)
1077                 goto end;
1078             if (kparam != NULL) {
1079                 EVP_PKEY_CTX *pctx;
1080                 pctx = CMS_SignerInfo_get0_pkey_ctx(si);
1081                 if (!cms_set_pkey_param(pctx, kparam->param))
1082                     goto end;
1083             }
1084             if (rr != NULL && !CMS_add1_ReceiptRequest(si, rr))
1085                 goto end;
1086             X509_free(signer);
1087             signer = NULL;
1088             EVP_PKEY_free(key);
1089             key = NULL;
1090         }
1091         /* If not streaming or resigning finalize structure */
1092         if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
1093             if (!CMS_final(cms, in, NULL, flags))
1094                 goto end;
1095         }
1096     }
1097
1098     if (cms == NULL) {
1099         BIO_printf(bio_err, "Error creating CMS structure\n");
1100         goto end;
1101     }
1102
1103     ret = 4;
1104     if (operation == SMIME_DECRYPT) {
1105         if (flags & CMS_DEBUG_DECRYPT)
1106             CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
1107
1108         if (secret_key != NULL) {
1109             if (!CMS_decrypt_set1_key(cms,
1110                                       secret_key, secret_keylen,
1111                                       secret_keyid, secret_keyidlen)) {
1112                 BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
1113                 goto end;
1114             }
1115         }
1116
1117         if (key != NULL) {
1118             if (!CMS_decrypt_set1_pkey_and_peer(cms, key, recip, originator)) {
1119                 BIO_puts(bio_err, "Error decrypting CMS using private key\n");
1120                 goto end;
1121             }
1122         }
1123
1124         if (pwri_pass != NULL) {
1125             if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
1126                 BIO_puts(bio_err, "Error decrypting CMS using password\n");
1127                 goto end;
1128             }
1129         }
1130
1131         if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
1132             BIO_printf(bio_err, "Error decrypting CMS structure\n");
1133             goto end;
1134         }
1135     } else if (operation == SMIME_DATAOUT) {
1136         if (!CMS_data(cms, out, flags))
1137             goto end;
1138     } else if (operation == SMIME_UNCOMPRESS) {
1139         if (!CMS_uncompress(cms, indata, out, flags))
1140             goto end;
1141     } else if (operation == SMIME_DIGEST_VERIFY) {
1142         if (CMS_digest_verify(cms, indata, out, flags) > 0) {
1143             BIO_printf(bio_err, "Verification successful\n");
1144         } else {
1145             BIO_printf(bio_err, "Verification failure\n");
1146             goto end;
1147         }
1148     } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
1149         if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1150                                        indata, out, flags))
1151             goto end;
1152     } else if (operation == SMIME_VERIFY) {
1153         if (CMS_verify(cms, other, store, indata, out, flags) > 0) {
1154             BIO_printf(bio_err, "%s Verification successful\n",
1155                        (flags & CMS_CADES) ? "CAdES" : "CMS");
1156         } else {
1157             BIO_printf(bio_err, "Verification failure\n");
1158             if (verify_retcode)
1159                 ret = verify_err + 32;
1160             goto end;
1161         }
1162         if (signerfile != NULL) {
1163             STACK_OF(X509) *signers;
1164             signers = CMS_get0_signers(cms);
1165             if (!save_certs(signerfile, signers)) {
1166                 BIO_printf(bio_err,
1167                            "Error writing signers to %s\n", signerfile);
1168                 ret = 5;
1169                 goto end;
1170             }
1171             sk_X509_free(signers);
1172         }
1173         if (rr_print)
1174             receipt_request_print(cms);
1175
1176     } else if (operation == SMIME_VERIFY_RECEIPT) {
1177         if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) {
1178             BIO_printf(bio_err, "Verification successful\n");
1179         } else {
1180             BIO_printf(bio_err, "Verification failure\n");
1181             goto end;
1182         }
1183     } else {
1184         if (noout) {
1185             if (print) {
1186                 ASN1_PCTX *pctx = NULL;
1187                 if (get_nameopt() != XN_FLAG_ONELINE) {
1188                     pctx = ASN1_PCTX_new();
1189                     if (pctx != NULL) { /* Print anyway if malloc failed */
1190                         ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT);
1191                         ASN1_PCTX_set_str_flags(pctx, get_nameopt());
1192                         ASN1_PCTX_set_nm_flags(pctx, get_nameopt());
1193                     }
1194                 }
1195                 CMS_ContentInfo_print_ctx(out, cms, 0, pctx);
1196                 ASN1_PCTX_free(pctx);
1197             }
1198         } else if (outformat == FORMAT_SMIME) {
1199             if (to)
1200                 BIO_printf(out, "To: %s%s", to, mime_eol);
1201             if (from)
1202                 BIO_printf(out, "From: %s%s", from, mime_eol);
1203             if (subject)
1204                 BIO_printf(out, "Subject: %s%s", subject, mime_eol);
1205             if (operation == SMIME_RESIGN)
1206                 ret = SMIME_write_CMS(out, cms, indata, flags);
1207             else
1208                 ret = SMIME_write_CMS(out, cms, in, flags);
1209         } else if (outformat == FORMAT_PEM) {
1210             ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1211         } else if (outformat == FORMAT_ASN1) {
1212             ret = i2d_CMS_bio_stream(out, cms, in, flags);
1213         } else {
1214             BIO_printf(bio_err, "Bad output format for CMS file\n");
1215             goto end;
1216         }
1217         if (ret <= 0) {
1218             ret = 6;
1219             goto end;
1220         }
1221     }
1222     ret = 0;
1223  end:
1224     if (ret)
1225         ERR_print_errors(bio_err);
1226     sk_X509_pop_free(encerts, X509_free);
1227     sk_X509_pop_free(other, X509_free);
1228     X509_VERIFY_PARAM_free(vpm);
1229     sk_OPENSSL_STRING_free(sksigners);
1230     sk_OPENSSL_STRING_free(skkeys);
1231     OPENSSL_free(secret_key);
1232     OPENSSL_free(secret_keyid);
1233     OPENSSL_free(pwri_tmp);
1234     ASN1_OBJECT_free(econtent_type);
1235     CMS_ReceiptRequest_free(rr);
1236     sk_OPENSSL_STRING_free(rr_to);
1237     sk_OPENSSL_STRING_free(rr_from);
1238     for (key_param = key_first; key_param;) {
1239         cms_key_param *tparam;
1240         sk_OPENSSL_STRING_free(key_param->param);
1241         tparam = key_param->next;
1242         OPENSSL_free(key_param);
1243         key_param = tparam;
1244     }
1245     X509_STORE_free(store);
1246     X509_free(cert);
1247     X509_free(recip);
1248     X509_free(signer);
1249     EVP_PKEY_free(key);
1250     EVP_CIPHER_free(cipher);
1251     EVP_CIPHER_free(wrap_cipher);
1252     EVP_MD_free(sign_md);
1253     CMS_ContentInfo_free(cms);
1254     CMS_ContentInfo_free(rcms);
1255     release_engine(e);
1256     BIO_free(rctin);
1257     BIO_free(in);
1258     BIO_free(indata);
1259     BIO_free_all(out);
1260     OPENSSL_free(passin);
1261     NCONF_free(conf);
1262     return ret;
1263 }
1264
1265 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1266 {
1267     int i;
1268     BIO *tmp;
1269     if (signerfile == NULL)
1270         return 1;
1271     tmp = BIO_new_file(signerfile, "w");
1272     if (tmp == NULL)
1273         return 0;
1274     for (i = 0; i < sk_X509_num(signers); i++)
1275         PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1276     BIO_free(tmp);
1277     return 1;
1278 }
1279
1280 /* Minimal callback just to output policy info (if any) */
1281
1282 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1283 {
1284     int error;
1285
1286     error = X509_STORE_CTX_get_error(ctx);
1287
1288     verify_err = error;
1289
1290     if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1291         && ((error != X509_V_OK) || (ok != 2)))
1292         return ok;
1293
1294     policies_print(ctx);
1295
1296     return ok;
1297
1298 }
1299
1300 static void gnames_stack_print(STACK_OF(GENERAL_NAMES) *gns)
1301 {
1302     STACK_OF(GENERAL_NAME) *gens;
1303     GENERAL_NAME *gen;
1304     int i, j;
1305
1306     for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1307         gens = sk_GENERAL_NAMES_value(gns, i);
1308         for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1309             gen = sk_GENERAL_NAME_value(gens, j);
1310             BIO_puts(bio_err, "    ");
1311             GENERAL_NAME_print(bio_err, gen);
1312             BIO_puts(bio_err, "\n");
1313         }
1314     }
1315     return;
1316 }
1317
1318 static void receipt_request_print(CMS_ContentInfo *cms)
1319 {
1320     STACK_OF(CMS_SignerInfo) *sis;
1321     CMS_SignerInfo *si;
1322     CMS_ReceiptRequest *rr;
1323     int allorfirst;
1324     STACK_OF(GENERAL_NAMES) *rto, *rlist;
1325     ASN1_STRING *scid;
1326     int i, rv;
1327     sis = CMS_get0_SignerInfos(cms);
1328     for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1329         si = sk_CMS_SignerInfo_value(sis, i);
1330         rv = CMS_get1_ReceiptRequest(si, &rr);
1331         BIO_printf(bio_err, "Signer %d:\n", i + 1);
1332         if (rv == 0) {
1333             BIO_puts(bio_err, "  No Receipt Request\n");
1334         } else if (rv < 0) {
1335             BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1336             ERR_print_errors(bio_err);
1337         } else {
1338             const char *id;
1339             int idlen;
1340             CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1341                                            &rlist, &rto);
1342             BIO_puts(bio_err, "  Signed Content ID:\n");
1343             idlen = ASN1_STRING_length(scid);
1344             id = (const char *)ASN1_STRING_get0_data(scid);
1345             BIO_dump_indent(bio_err, id, idlen, 4);
1346             BIO_puts(bio_err, "  Receipts From");
1347             if (rlist != NULL) {
1348                 BIO_puts(bio_err, " List:\n");
1349                 gnames_stack_print(rlist);
1350             } else if (allorfirst == 1) {
1351                 BIO_puts(bio_err, ": First Tier\n");
1352             } else if (allorfirst == 0) {
1353                 BIO_puts(bio_err, ": All\n");
1354             } else {
1355                 BIO_printf(bio_err, " Unknown (%d)\n", allorfirst);
1356             }
1357             BIO_puts(bio_err, "  Receipts To:\n");
1358             gnames_stack_print(rto);
1359         }
1360         CMS_ReceiptRequest_free(rr);
1361     }
1362 }
1363
1364 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
1365 {
1366     int i;
1367     STACK_OF(GENERAL_NAMES) *ret;
1368     GENERAL_NAMES *gens = NULL;
1369     GENERAL_NAME *gen = NULL;
1370     ret = sk_GENERAL_NAMES_new_null();
1371     if (ret == NULL)
1372         goto err;
1373     for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1374         char *str = sk_OPENSSL_STRING_value(ns, i);
1375         gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1376         if (gen == NULL)
1377             goto err;
1378         gens = GENERAL_NAMES_new();
1379         if (gens == NULL)
1380             goto err;
1381         if (!sk_GENERAL_NAME_push(gens, gen))
1382             goto err;
1383         gen = NULL;
1384         if (!sk_GENERAL_NAMES_push(ret, gens))
1385             goto err;
1386         gens = NULL;
1387     }
1388
1389     return ret;
1390
1391  err:
1392     sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1393     GENERAL_NAMES_free(gens);
1394     GENERAL_NAME_free(gen);
1395     return NULL;
1396 }
1397
1398 static CMS_ReceiptRequest *make_receipt_request(
1399    STACK_OF(OPENSSL_STRING) *rr_to, int rr_allorfirst,
1400    STACK_OF(OPENSSL_STRING) *rr_from,
1401    OSSL_LIB_CTX *libctx)
1402 {
1403     STACK_OF(GENERAL_NAMES) *rct_to = NULL, *rct_from = NULL;
1404     CMS_ReceiptRequest *rr;
1405     rct_to = make_names_stack(rr_to);
1406     if (rct_to == NULL)
1407         goto err;
1408     if (rr_from != NULL) {
1409         rct_from = make_names_stack(rr_from);
1410         if (rct_from == NULL)
1411             goto err;
1412     } else {
1413         rct_from = NULL;
1414     }
1415     rr = CMS_ReceiptRequest_create0_ex(NULL, -1, rr_allorfirst, rct_from,
1416                                        rct_to, libctx, app_get0_propq());
1417     return rr;
1418  err:
1419     sk_GENERAL_NAMES_pop_free(rct_to, GENERAL_NAMES_free);
1420     return NULL;
1421 }
1422
1423 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
1424                               STACK_OF(OPENSSL_STRING) *param)
1425 {
1426     char *keyopt;
1427     int i;
1428     if (sk_OPENSSL_STRING_num(param) <= 0)
1429         return 1;
1430     for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) {
1431         keyopt = sk_OPENSSL_STRING_value(param, i);
1432         if (pkey_ctrl_string(pctx, keyopt) <= 0) {
1433             BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt);
1434             ERR_print_errors(bio_err);
1435             return 0;
1436         }
1437     }
1438     return 1;
1439 }