apps/cms.c

   1 /*
   2  * Copyright 2008-2022 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
  28 *make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to, int rr_allorfirst,
  29                       STACK_OF(OPENSSL_STRING) *rr_from);
  30 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
  31                               STACK_OF(OPENSSL_STRING) *param);
  32
  33 #define SMIME_OP                0x100
  34 #define SMIME_IP                0x200
  35 #define SMIME_SIGNERS           0x400
  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_RESIGN            (5 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
  41 #define SMIME_SIGN_RECEIPT      (6 | SMIME_IP | SMIME_OP)
  42 #define SMIME_VERIFY_RECEIPT    (7 | SMIME_IP)
  43 #define SMIME_DIGEST_CREATE     (8 | SMIME_OP)
  44 #define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
  45 #define SMIME_COMPRESS          (10 | SMIME_OP)
  46 #define SMIME_UNCOMPRESS        (11 | SMIME_IP)
  47 #define SMIME_ENCRYPTED_ENCRYPT (12 | SMIME_OP)
  48 #define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
  49 #define SMIME_DATA_CREATE       (14 | SMIME_OP)
  50 #define SMIME_DATA_OUT          (15 | SMIME_IP)
  51 #define SMIME_CMSOUT            (16 | SMIME_IP | SMIME_OP)
  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_COMMON,
  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, 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     {"help", OPT_HELP, '-', "Display this summary"},
  93
  94     OPT_SECTION("General"),
  95     {"in", OPT_IN, '<', "Input file"},
  96     {"out", OPT_OUT, '>', "Output file"},
  97     OPT_CONFIG_OPTION,
  98
  99     OPT_SECTION("Operation"),
 100     {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"},
 101     {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"},
 102     {"sign", OPT_SIGN, '-', "Sign message"},
 103     {"verify", OPT_VERIFY, '-', "Verify signed message"},
 104     {"resign", OPT_RESIGN, '-', "Resign a signed message"},
 105     {"sign_receipt", OPT_SIGN_RECEIPT, '-',
 106      "Generate a signed receipt for a message"},
 107     {"verify_receipt", OPT_VERIFY_RECEIPT, '<',
 108      "Verify receipts; exit if receipt signatures do not verify"},
 109     {"digest", OPT_DIGEST, 's', "Sign a pre-computed digest in hex notation"},
 110     {"digest_create", OPT_DIGEST_CREATE, '-',
 111      "Create a CMS \"DigestedData\" object"},
 112     {"digest_verify", OPT_DIGEST_VERIFY, '-',
 113      "Verify a CMS \"DigestedData\" object and output it"},
 114     {"compress", OPT_COMPRESS, '-', "Create a CMS \"CompressedData\" object"},
 115     {"uncompress", OPT_UNCOMPRESS, '-',
 116      "Uncompress a CMS \"CompressedData\" object"},
 117     {"EncryptedData_encrypt", OPT_ED_ENCRYPT, '-',
 118      "Create CMS \"EncryptedData\" object using symmetric key"},
 119     {"EncryptedData_decrypt", OPT_ED_DECRYPT, '-',
 120      "Decrypt CMS \"EncryptedData\" object using symmetric key"},
 121     {"data_create", OPT_DATA_CREATE, '-', "Create a CMS \"Data\" object"},
 122     {"data_out", OPT_DATA_OUT, '-', "Copy CMS \"Data\" object to output"},
 123     {"cmsout", OPT_CMSOUT, '-', "Output CMS structure"},
 124
 125     OPT_SECTION("File format"),
 126     {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"},
 127     {"outform", OPT_OUTFORM, 'c',
 128      "Output format SMIME (default), PEM or DER"},
 129     {"rctform", OPT_RCTFORM, 'F', "Receipt file format"},
 130     {"stream", OPT_INDEF, '-', "Enable CMS streaming"},
 131     {"indef", OPT_INDEF, '-', "Same as -stream"},
 132     {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"},
 133     {"binary", OPT_BINARY, '-',
 134      "Treat input as binary: do not translate to canonical form"},
 135     {"crlfeol", OPT_CRLFEOL, '-',
 136      "Use CRLF as EOL termination instead of CR only" },
 137     {"asciicrlf", OPT_ASCIICRLF, '-',
 138      "Perform CRLF canonicalisation when signing"},
 139
 140     OPT_SECTION("Keys and passwords"),
 141     {"pwri_password", OPT_PWRI_PASSWORD, 's',
 142      "Specific password for recipient"},
 143     {"secretkey", OPT_SECRETKEY, 's',
 144      "Use specified hex-encoded key to decrypt/encrypt recipients or content"},
 145     {"secretkeyid", OPT_SECRETKEYID, 's',
 146      "Identity of the -secretkey for CMS \"KEKRecipientInfo\" object"},
 147     {"inkey", OPT_INKEY, 's',
 148      "Input private key (if not signer or recipient)"},
 149     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
 150     {"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"},
 151     {"keyform", OPT_KEYFORM, 'f',
 152      "Input private key format (ENGINE, other values ignored)"},
 153 #ifndef OPENSSL_NO_ENGINE
 154     {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
 155 #endif
 156     OPT_PROV_OPTIONS,
 157     OPT_R_OPTIONS,
 158
 159     OPT_SECTION("Encryption and decryption"),
 160     {"originator", OPT_ORIGINATOR, 's', "Originator certificate file"},
 161     {"recip", OPT_RECIP, '<', "Recipient cert file"},
 162     {"cert...", OPT_PARAM, '.',
 163      "Recipient certs (optional; used only when encrypting)"},
 164     {"", OPT_CIPHER, '-',
 165      "The encryption algorithm to use (any supported cipher)"},
 166     {"wrap", OPT_WRAP, 's',
 167      "Key wrap algorithm to use when encrypting with key agreement"},
 168     {"aes128-wrap", OPT_AES128_WRAP, '-', "Use AES128 to wrap key"},
 169     {"aes192-wrap", OPT_AES192_WRAP, '-', "Use AES192 to wrap key"},
 170     {"aes256-wrap", OPT_AES256_WRAP, '-', "Use AES256 to wrap key"},
 171     {"des3-wrap", OPT_3DES_WRAP, '-', "Use 3DES-EDE to wrap key"},
 172     {"debug_decrypt", OPT_DEBUG_DECRYPT, '-',
 173      "Disable MMA protection, return error if no recipient found (see doc)"},
 174
 175     OPT_SECTION("Signing"),
 176     {"md", OPT_MD, 's', "Digest algorithm to use"},
 177     {"signer", OPT_SIGNER, 's', "Signer certificate input file"},
 178     {"certfile", OPT_CERTFILE, '<', "Other certificates file"},
 179     {"cades", OPT_CADES, '-',
 180      "Include signingCertificate attribute (CAdES-BES)"},
 181     {"nodetach", OPT_NODETACH, '-', "Use opaque signing"},
 182     {"nocerts", OPT_NOCERTS, '-',
 183      "Don't include signer's certificate when signing"},
 184     {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"},
 185     {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"},
 186     {"receipt_request_all", OPT_RR_ALL, '-',
 187      "When signing, create a receipt request for all recipients"},
 188     {"receipt_request_first", OPT_RR_FIRST, '-',
 189      "When signing, create a receipt request for first recipient"},
 190     {"receipt_request_from", OPT_RR_FROM, 's',
 191      "Create signed receipt request with specified email address"},
 192     {"receipt_request_to", OPT_RR_TO, 's',
 193      "Create signed receipt targeted to specified address"},
 194
 195     OPT_SECTION("Verification"),
 196     {"signer", OPT_DUP, 's', "Signer certificate(s) output file"},
 197     {"content", OPT_CONTENT, '<',
 198      "Supply or override content for detached signature"},
 199     {"no_content_verify", OPT_NO_CONTENT_VERIFY, '-',
 200      "Do not verify signed content signatures"},
 201     {"no_attr_verify", OPT_NO_ATTR_VERIFY, '-',
 202      "Do not verify signed attribute signatures"},
 203     {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"},
 204     {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"},
 205     {"nointern", OPT_NOINTERN, '-',
 206      "Don't search certificates in message for signer"},
 207     {"cades", OPT_DUP, '-', "Check signingCertificate (CAdES-BES)"},
 208     {"verify_retcode", OPT_VERIFY_RETCODE, '-',
 209      "Exit non-zero on verification failure"},
 210     {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
 211     {"CApath", OPT_CAPATH, '/', "Trusted certificates directory"},
 212     {"CAstore", OPT_CASTORE, ':', "Trusted certificates store URI"},
 213     {"no-CAfile", OPT_NOCAFILE, '-',
 214      "Do not load the default certificates file"},
 215     {"no-CApath", OPT_NOCAPATH, '-',
 216      "Do not load certificates from the default certificates directory"},
 217     {"no-CAstore", OPT_NOCASTORE, '-',
 218      "Do not load certificates from the default certificates store"},
 219
 220     OPT_SECTION("Output"),
 221     {"keyid", OPT_KEYID, '-', "Use subject key identifier"},
 222     {"econtent_type", OPT_ECONTENT_TYPE, 's', "OID for external content"},
 223     {"text", OPT_TEXT, '-', "Include or delete text MIME headers"},
 224     {"certsout", OPT_CERTSOUT, '>', "Certificate output file"},
 225     {"to", OPT_TO, 's', "To address"},
 226     {"from", OPT_FROM, 's', "From address"},
 227     {"subject", OPT_SUBJECT, 's', "Subject"},
 228
 229     OPT_SECTION("Printing"),
 230     {"noout", OPT_NOOUT, '-',
 231      "For the -cmsout operation do not output the parsed CMS structure"},
 232     {"print", OPT_PRINT, '-',
 233      "For the -cmsout operation print out all fields of the CMS structure"},
 234     {"nameopt", OPT_NAMEOPT, 's',
 235      "For the -print option specifies various strings printing options"},
 236     {"receipt_request_print", OPT_RR_PRINT, '-', "Print CMS Receipt Request" },
 237
 238     OPT_V_OPTIONS,
 239     {NULL}
 240 };
 241
 242 static CMS_ContentInfo *load_content_info(int informat, BIO *in, int flags,
 243                                           BIO **indata, const char *name)
 244 {
 245     CMS_ContentInfo *ret, *ci;
 246
 247     ret = CMS_ContentInfo_new_ex(app_get0_libctx(), app_get0_propq());
 248     if (ret == NULL) {
 249         BIO_printf(bio_err, "Error allocating CMS_contentinfo\n");
 250         return NULL;
 251     }
 252     switch (informat) {
 253     case FORMAT_SMIME:
 254         ci = SMIME_read_CMS_ex(in, flags, indata, &ret);
 255         break;
 256     case FORMAT_PEM:
 257         ci = PEM_read_bio_CMS(in, &ret, NULL, NULL);
 258         break;
 259     case FORMAT_ASN1:
 260         ci = d2i_CMS_bio(in, &ret);
 261         break;
 262     default:
 263         BIO_printf(bio_err, "Bad input format for %s\n", name);
 264         goto err;
 265     }
 266     if (ci == NULL) {
 267         BIO_printf(bio_err, "Error reading %s Content Info\n", name);
 268         goto err;
 269     }
 270     return ret;
 271  err:
 272     CMS_ContentInfo_free(ret);
 273     return NULL;
 274 }
 275
 276 int cms_main(int argc, char **argv)
 277 {
 278     CONF *conf = NULL;
 279     ASN1_OBJECT *econtent_type = NULL;
 280     BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
 281     CMS_ContentInfo *cms = NULL, *rcms = NULL;
 282     CMS_ReceiptRequest *rr = NULL;
 283     ENGINE *e = NULL;
 284     EVP_PKEY *key = NULL;
 285     EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
 286     EVP_MD *sign_md = NULL;
 287     STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
 288     STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
 289     STACK_OF(X509) *encerts = sk_X509_new_null(), *other = NULL;
 290     X509 *cert = NULL, *recip = NULL, *signer = NULL, *originator = NULL;
 291     X509_STORE *store = NULL;
 292     X509_VERIFY_PARAM *vpm = X509_VERIFY_PARAM_new();
 293     char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
 294     const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL;
 295     char *certsoutfile = NULL, *digestname = NULL, *wrapname = NULL;
 296     int noCAfile = 0, noCApath = 0, noCAstore = 0;
 297     char *digesthex = NULL;
 298     unsigned char *digestbin = NULL;
 299     long digestlen = 0;
 300     char *infile = NULL, *outfile = NULL, *rctfile = NULL;
 301     char *passinarg = NULL, *passin = NULL, *signerfile = NULL;
 302     char *originatorfile = NULL, *recipfile = NULL, *ciphername = NULL;
 303     char *to = NULL, *from = NULL, *subject = NULL, *prog;
 304     cms_key_param *key_first = NULL, *key_param = NULL;
 305     int flags = CMS_DETACHED, binary_files = 0;
 306     int noout = 0, print = 0, keyidx = -1, vpmtouched = 0;
 307     int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
 308     int operation = 0, ret = 1, rr_print = 0, rr_allorfirst = -1;
 309     int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_UNDEF;
 310     size_t secret_keylen = 0, secret_keyidlen = 0;
 311     unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
 312     unsigned char *secret_key = NULL, *secret_keyid = NULL;
 313     long ltmp;
 314     const char *mime_eol = "\n";
 315     OPTION_CHOICE o;
 316     OSSL_LIB_CTX *libctx = app_get0_libctx();
 317
 318     if (encerts == NULL || vpm == NULL)
 319         goto end;
 320
 321     opt_set_unknown_name("cipher");
 322     prog = opt_init(argc, argv, cms_options);
 323     while ((o = opt_next()) != OPT_EOF) {
 324         switch (o) {
 325         case OPT_EOF:
 326         case OPT_ERR:
 327  opthelp:
 328             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 329             goto end;
 330         case OPT_HELP:
 331             opt_help(cms_options);
 332             ret = 0;
 333             goto end;
 334         case OPT_INFORM:
 335             if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat))
 336                 goto opthelp;
 337             break;
 338         case OPT_OUTFORM:
 339             if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat))
 340                 goto opthelp;
 341             break;
 342         case OPT_OUT:
 343             outfile = opt_arg();
 344             break;
 345
 346         case OPT_ENCRYPT:
 347             operation = SMIME_ENCRYPT;
 348             break;
 349         case OPT_DECRYPT:
 350             operation = SMIME_DECRYPT;
 351             break;
 352         case OPT_SIGN:
 353             operation = SMIME_SIGN;
 354             break;
 355         case OPT_VERIFY:
 356             operation = SMIME_VERIFY;
 357             break;
 358         case OPT_RESIGN:
 359             operation = SMIME_RESIGN;
 360             break;
 361         case OPT_SIGN_RECEIPT:
 362             operation = SMIME_SIGN_RECEIPT;
 363             break;
 364         case OPT_VERIFY_RECEIPT:
 365             operation = SMIME_VERIFY_RECEIPT;
 366             rctfile = opt_arg();
 367             break;
 368         case OPT_VERIFY_RETCODE:
 369             verify_retcode = 1;
 370             break;
 371         case OPT_DIGEST_CREATE:
 372             operation = SMIME_DIGEST_CREATE;
 373             break;
 374         case OPT_DIGEST:
 375             digesthex = opt_arg();
 376             break;
 377         case OPT_DIGEST_VERIFY:
 378             operation = SMIME_DIGEST_VERIFY;
 379             break;
 380         case OPT_COMPRESS:
 381             operation = SMIME_COMPRESS;
 382             break;
 383         case OPT_UNCOMPRESS:
 384             operation = SMIME_UNCOMPRESS;
 385             break;
 386         case OPT_ED_ENCRYPT:
 387             operation = SMIME_ENCRYPTED_ENCRYPT;
 388             break;
 389         case OPT_ED_DECRYPT:
 390             operation = SMIME_ENCRYPTED_DECRYPT;
 391             break;
 392         case OPT_DATA_CREATE:
 393             operation = SMIME_DATA_CREATE;
 394             break;
 395         case OPT_DATA_OUT:
 396             operation = SMIME_DATA_OUT;
 397             break;
 398         case OPT_CMSOUT:
 399             operation = SMIME_CMSOUT;
 400             break;
 401
 402         case OPT_DEBUG_DECRYPT:
 403             flags |= CMS_DEBUG_DECRYPT;
 404             break;
 405         case OPT_TEXT:
 406             flags |= CMS_TEXT;
 407             break;
 408         case OPT_ASCIICRLF:
 409             flags |= CMS_ASCIICRLF;
 410             break;
 411         case OPT_NOINTERN:
 412             flags |= CMS_NOINTERN;
 413             break;
 414         case OPT_NOVERIFY:
 415             flags |= CMS_NO_SIGNER_CERT_VERIFY;
 416             break;
 417         case OPT_NOCERTS:
 418             flags |= CMS_NOCERTS;
 419             break;
 420         case OPT_NOATTR:
 421             flags |= CMS_NOATTR;
 422             break;
 423         case OPT_NODETACH:
 424             flags &= ~CMS_DETACHED;
 425             break;
 426         case OPT_NOSMIMECAP:
 427             flags |= CMS_NOSMIMECAP;
 428             break;
 429         case OPT_BINARY:
 430             flags |= CMS_BINARY;
 431             break;
 432         case OPT_CADES:
 433             flags |= CMS_CADES;
 434             break;
 435         case OPT_KEYID:
 436             flags |= CMS_USE_KEYID;
 437             break;
 438         case OPT_NOSIGS:
 439             flags |= CMS_NOSIGS;
 440             break;
 441         case OPT_NO_CONTENT_VERIFY:
 442             flags |= CMS_NO_CONTENT_VERIFY;
 443             break;
 444         case OPT_NO_ATTR_VERIFY:
 445             flags |= CMS_NO_ATTR_VERIFY;
 446             break;
 447         case OPT_INDEF:
 448             flags |= CMS_STREAM;
 449             break;
 450         case OPT_NOINDEF:
 451             flags &= ~CMS_STREAM;
 452             break;
 453         case OPT_CRLFEOL:
 454             mime_eol = "\r\n";
 455             flags |= CMS_CRLFEOL;
 456             break;
 457         case OPT_NOOUT:
 458             noout = 1;
 459             break;
 460         case OPT_RR_PRINT:
 461             rr_print = 1;
 462             break;
 463         case OPT_RR_ALL:
 464             rr_allorfirst = 0;
 465             break;
 466         case OPT_RR_FIRST:
 467             rr_allorfirst = 1;
 468             break;
 469         case OPT_RCTFORM:
 470             if (!opt_format(opt_arg(),
 471                             OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat))
 472                 goto opthelp;
 473             break;
 474         case OPT_CERTFILE:
 475             certfile = opt_arg();
 476             break;
 477         case OPT_CAFILE:
 478             CAfile = opt_arg();
 479             break;
 480         case OPT_CAPATH:
 481             CApath = opt_arg();
 482             break;
 483         case OPT_CASTORE:
 484             CAstore = opt_arg();
 485             break;
 486         case OPT_NOCAFILE:
 487             noCAfile = 1;
 488             break;
 489         case OPT_NOCAPATH:
 490             noCApath = 1;
 491             break;
 492         case OPT_NOCASTORE:
 493             noCAstore = 1;
 494             break;
 495         case OPT_IN:
 496             infile = opt_arg();
 497             break;
 498         case OPT_CONTENT:
 499             contfile = opt_arg();
 500             break;
 501         case OPT_RR_FROM:
 502             if (rr_from == NULL
 503                 && (rr_from = sk_OPENSSL_STRING_new_null()) == NULL)
 504                 goto end;
 505             sk_OPENSSL_STRING_push(rr_from, opt_arg());
 506             break;
 507         case OPT_RR_TO:
 508             if (rr_to == NULL
 509                 && (rr_to = sk_OPENSSL_STRING_new_null()) == NULL)
 510                 goto end;
 511             sk_OPENSSL_STRING_push(rr_to, opt_arg());
 512             break;
 513         case OPT_PRINT:
 514             noout = print = 1;
 515             break;
 516         case OPT_NAMEOPT:
 517             if (!set_nameopt(opt_arg()))
 518                 goto opthelp;
 519             break;
 520         case OPT_SECRETKEY:
 521             if (secret_key != NULL) {
 522                 BIO_printf(bio_err, "Invalid key (supplied twice) %s\n",
 523                            opt_arg());
 524                 goto opthelp;
 525             }
 526             secret_key = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 527             if (secret_key == NULL) {
 528                 BIO_printf(bio_err, "Invalid key %s\n", opt_arg());
 529                 goto end;
 530             }
 531             secret_keylen = (size_t)ltmp;
 532             break;
 533         case OPT_SECRETKEYID:
 534             if (secret_keyid != NULL) {
 535                 BIO_printf(bio_err, "Invalid id (supplied twice) %s\n",
 536                            opt_arg());
 537                 goto opthelp;
 538             }
 539             secret_keyid = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 540             if (secret_keyid == NULL) {
 541                 BIO_printf(bio_err, "Invalid id %s\n", opt_arg());
 542                 goto opthelp;
 543             }
 544             secret_keyidlen = (size_t)ltmp;
 545             break;
 546         case OPT_PWRI_PASSWORD:
 547             pwri_pass = (unsigned char *)opt_arg();
 548             break;
 549         case OPT_ECONTENT_TYPE:
 550             if (econtent_type != NULL) {
 551                 BIO_printf(bio_err, "Invalid OID (supplied twice) %s\n",
 552                            opt_arg());
 553                 goto opthelp;
 554             }
 555             econtent_type = OBJ_txt2obj(opt_arg(), 0);
 556             if (econtent_type == NULL) {
 557                 BIO_printf(bio_err, "Invalid OID %s\n", opt_arg());
 558                 goto opthelp;
 559             }
 560             break;
 561         case OPT_ENGINE:
 562             e = setup_engine(opt_arg(), 0);
 563             break;
 564         case OPT_PASSIN:
 565             passinarg = opt_arg();
 566             break;
 567         case OPT_TO:
 568             to = opt_arg();
 569             break;
 570         case OPT_FROM:
 571             from = opt_arg();
 572             break;
 573         case OPT_SUBJECT:
 574             subject = opt_arg();
 575             break;
 576         case OPT_CERTSOUT:
 577             certsoutfile = opt_arg();
 578             break;
 579         case OPT_MD:
 580             digestname = opt_arg();
 581             break;
 582         case OPT_SIGNER:
 583             /* If previous -signer argument add signer to list */
 584             if (signerfile != NULL) {
 585                 if (sksigners == NULL
 586                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 587                     goto end;
 588                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 589                 if (keyfile == NULL)
 590                     keyfile = signerfile;
 591                 if (skkeys == NULL
 592                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 593                     goto end;
 594                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 595                 keyfile = NULL;
 596             }
 597             signerfile = opt_arg();
 598             break;
 599         case OPT_ORIGINATOR:
 600             originatorfile = opt_arg();
 601             break;
 602         case OPT_INKEY:
 603             /* If previous -inkey argument add signer to list */
 604             if (keyfile != NULL) {
 605                 if (signerfile == NULL) {
 606                     BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 607                     goto end;
 608                 }
 609                 if (sksigners == NULL
 610                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 611                     goto end;
 612                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 613                 signerfile = NULL;
 614                 if (skkeys == NULL
 615                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 616                     goto end;
 617                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 618             }
 619             keyfile = opt_arg();
 620             break;
 621         case OPT_KEYFORM:
 622             if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
 623                 goto opthelp;
 624             break;
 625         case OPT_RECIP:
 626             if (operation == SMIME_ENCRYPT) {
 627                 cert = load_cert(opt_arg(), FORMAT_UNDEF,
 628                                  "recipient certificate file");
 629                 if (cert == NULL)
 630                     goto end;
 631                 sk_X509_push(encerts, cert);
 632                 cert = NULL;
 633             } else {
 634                 recipfile = opt_arg();
 635             }
 636             break;
 637         case OPT_CIPHER:
 638             ciphername = opt_unknown();
 639             break;
 640         case OPT_KEYOPT:
 641             keyidx = -1;
 642             if (operation == SMIME_ENCRYPT) {
 643                 if (sk_X509_num(encerts) > 0)
 644                     keyidx += sk_X509_num(encerts);
 645             } else {
 646                 if (keyfile != NULL || signerfile != NULL)
 647                     keyidx++;
 648                 if (skkeys != NULL)
 649                     keyidx += sk_OPENSSL_STRING_num(skkeys);
 650             }
 651             if (keyidx < 0) {
 652                 BIO_printf(bio_err, "No key specified\n");
 653                 goto opthelp;
 654             }
 655             if (key_param == NULL || key_param->idx != keyidx) {
 656                 cms_key_param *nparam;
 657                 nparam = app_malloc(sizeof(*nparam), "key param buffer");
 658                 if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL) {
 659                     OPENSSL_free(nparam);
 660                     goto end;
 661                 }
 662                 nparam->idx = keyidx;
 663                 nparam->next = NULL;
 664                 if (key_first == NULL)
 665                     key_first = nparam;
 666                 else
 667                     key_param->next = nparam;
 668                 key_param = nparam;
 669             }
 670             sk_OPENSSL_STRING_push(key_param->param, opt_arg());
 671             break;
 672         case OPT_V_CASES:
 673             if (!opt_verify(o, vpm))
 674                 goto end;
 675             vpmtouched++;
 676             break;
 677         case OPT_R_CASES:
 678             if (!opt_rand(o))
 679                 goto end;
 680             break;
 681         case OPT_PROV_CASES:
 682             if (!opt_provider(o))
 683                 goto end;
 684             break;
 685         case OPT_CONFIG:
 686             conf = app_load_config_modules(opt_arg());
 687             if (conf == NULL)
 688                 goto end;
 689             break;
 690         case OPT_WRAP:
 691             wrapname = opt_arg();
 692             break;
 693         case OPT_AES128_WRAP:
 694         case OPT_AES192_WRAP:
 695         case OPT_AES256_WRAP:
 696         case OPT_3DES_WRAP:
 697             wrapname = opt_flag() + 1;
 698             break;
 699         }
 700     }
 701     if (!app_RAND_load())
 702         goto end;
 703
 704     if (digestname != NULL) {
 705         if (!opt_md(digestname, &sign_md))
 706             goto end;
 707     }
 708     if (!opt_cipher_any(ciphername, &cipher))
 709         goto end;
 710     if (wrapname != NULL) {
 711         if (!opt_cipher_any(wrapname, &wrap_cipher))
 712             goto end;
 713     }
 714
 715     /* Remaining args are files to process. */
 716     argc = opt_num_rest();
 717     argv = opt_rest();
 718
 719     if ((rr_allorfirst != -1 || rr_from != NULL) && rr_to == NULL) {
 720         BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 721         goto opthelp;
 722     }
 723
 724     if (!(operation & SMIME_SIGNERS) && (rr_to != NULL || rr_from != NULL)) {
 725         BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 726         goto opthelp;
 727     }
 728     if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) {
 729         BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 730         goto opthelp;
 731     }
 732
 733     if ((flags & CMS_CADES) != 0) {
 734         if ((flags & CMS_NOATTR) != 0) {
 735             BIO_puts(bio_err, "Incompatible options: "
 736                      "CAdES requires signed attributes\n");
 737             goto opthelp;
 738         }
 739         if (operation == SMIME_VERIFY
 740                 && (flags & (CMS_NO_SIGNER_CERT_VERIFY | CMS_NO_ATTR_VERIFY)) != 0) {
 741             BIO_puts(bio_err, "Incompatible options: CAdES validation requires"
 742                      " certs and signed attributes validations\n");
 743             goto opthelp;
 744         }
 745     }
 746
 747     if (operation & SMIME_SIGNERS) {
 748         if (keyfile != NULL && signerfile == NULL) {
 749             BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 750             goto opthelp;
 751         }
 752         /* Check to see if any final signer needs to be appended */
 753         if (signerfile != NULL) {
 754             if (sksigners == NULL
 755                 && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 756                 goto end;
 757             sk_OPENSSL_STRING_push(sksigners, signerfile);
 758             if (skkeys == NULL && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 759                 goto end;
 760             if (keyfile == NULL)
 761                 keyfile = signerfile;
 762             sk_OPENSSL_STRING_push(skkeys, keyfile);
 763         }
 764         if (sksigners == NULL) {
 765             BIO_printf(bio_err, "No signer certificate specified\n");
 766             goto opthelp;
 767         }
 768         signerfile = NULL;
 769         keyfile = NULL;
 770     } else if (operation == SMIME_DECRYPT) {
 771         if (recipfile == NULL && keyfile == NULL
 772             && secret_key == NULL && pwri_pass == NULL) {
 773             BIO_printf(bio_err,
 774                        "No recipient certificate or key specified\n");
 775             goto opthelp;
 776         }
 777     } else if (operation == SMIME_ENCRYPT) {
 778         if (*argv == NULL && secret_key == NULL
 779             && pwri_pass == NULL && sk_X509_num(encerts) <= 0) {
 780             BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 781             goto opthelp;
 782         }
 783     } else if (!operation) {
 784         BIO_printf(bio_err, "No operation option (-encrypt|-decrypt|-sign|-verify|...) specified.\n");
 785         goto opthelp;
 786     }
 787
 788     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 789         BIO_printf(bio_err, "Error getting password\n");
 790         goto end;
 791     }
 792
 793     ret = 2;
 794
 795     if ((operation & SMIME_SIGNERS) == 0) {
 796         if ((flags & CMS_DETACHED) == 0)
 797             BIO_printf(bio_err,
 798                        "Warning: -nodetach option is ignored for non-signing operation\n");
 799
 800         flags &= ~CMS_DETACHED;
 801     }
 802     if ((operation & SMIME_IP) == 0 && contfile != NULL)
 803         BIO_printf(bio_err,
 804                    "Warning: -contfile option is ignored for the given operation\n");
 805
 806     if ((flags & CMS_BINARY) != 0) {
 807         if (!(operation & SMIME_OP))
 808             outformat = FORMAT_BINARY;
 809         if (!(operation & SMIME_IP))
 810             informat = FORMAT_BINARY;
 811         if ((operation & SMIME_SIGNERS) != 0 && (flags & CMS_DETACHED) != 0)
 812             binary_files = 1;
 813         if ((operation & SMIME_IP) != 0 && contfile == NULL)
 814             binary_files = 1;
 815     }
 816
 817     if (operation == SMIME_ENCRYPT) {
 818         if (!cipher) {
 819 #ifndef OPENSSL_NO_DES
 820             cipher = (EVP_CIPHER *)EVP_des_ede3_cbc();
 821 #else
 822             BIO_printf(bio_err, "No cipher selected\n");
 823             goto end;
 824 #endif
 825         }
 826
 827         if (secret_key && !secret_keyid) {
 828             BIO_printf(bio_err, "No secret key id\n");
 829             goto end;
 830         }
 831
 832         if (*argv != NULL) {
 833             if (operation == SMIME_ENCRYPT) {
 834                 for (; *argv != NULL; argv++) {
 835                     cert = load_cert(*argv, FORMAT_UNDEF,
 836                                      "recipient certificate file");
 837                     if (cert == NULL)
 838                         goto end;
 839                     sk_X509_push(encerts, cert);
 840                     cert = NULL;
 841                 }
 842             } else {
 843                 BIO_printf(bio_err, "Warning: recipient certificate file parameters ignored for operation other than -encrypt\n");
 844             }
 845         }
 846     }
 847
 848     if (certfile != NULL) {
 849         if (!load_certs(certfile, 0, &other, NULL, "certificate file")) {
 850             ERR_print_errors(bio_err);
 851             goto end;
 852         }
 853     }
 854
 855     if (recipfile != NULL && (operation == SMIME_DECRYPT)) {
 856         if ((recip = load_cert(recipfile, FORMAT_UNDEF,
 857                                "recipient certificate file")) == NULL) {
 858             ERR_print_errors(bio_err);
 859             goto end;
 860         }
 861     }
 862
 863     if (originatorfile != NULL) {
 864         if ((originator = load_cert(originatorfile, FORMAT_UNDEF,
 865                                     "originator certificate file")) == NULL) {
 866             ERR_print_errors(bio_err);
 867             goto end;
 868         }
 869     }
 870
 871     if (operation == SMIME_SIGN_RECEIPT) {
 872         if ((signer = load_cert(signerfile, FORMAT_UNDEF,
 873                                 "receipt signer certificate file")) == NULL) {
 874             ERR_print_errors(bio_err);
 875             goto end;
 876         }
 877     }
 878
 879     if ((operation == SMIME_DECRYPT) || (operation == SMIME_ENCRYPT)) {
 880         if (keyfile == NULL)
 881             keyfile = recipfile;
 882     } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
 883         if (keyfile == NULL)
 884             keyfile = signerfile;
 885     } else {
 886         keyfile = NULL;
 887     }
 888
 889     if (keyfile != NULL) {
 890         key = load_key(keyfile, keyform, 0, passin, e, "signing key");
 891         if (key == NULL)
 892             goto end;
 893     }
 894
 895     if (digesthex != NULL) {
 896         if (operation != SMIME_SIGN) {
 897             BIO_printf(bio_err,
 898                        "Cannot use -digest for non-signing operation\n");
 899             goto end;
 900         }
 901         if (infile != NULL
 902             || (flags & CMS_DETACHED) == 0
 903             || (flags & CMS_STREAM) != 0) {
 904             BIO_printf(bio_err,
 905                        "Cannot use -digest when -in, -nodetach or streaming is used\n");
 906             goto end;
 907         }
 908         digestbin = OPENSSL_hexstr2buf(digesthex, &digestlen);
 909         if (digestbin == NULL) {
 910             BIO_printf(bio_err,
 911                        "Invalid hex value after -digest\n");
 912             goto end;
 913         }
 914     } else {
 915         in = bio_open_default(infile, 'r',
 916                               binary_files ? FORMAT_BINARY : informat);
 917         if (in == NULL)
 918             goto end;
 919     }
 920
 921     if (operation & SMIME_IP) {
 922         cms = load_content_info(informat, in, flags, &indata, "SMIME");
 923         if (cms == NULL)
 924             goto end;
 925         if (contfile != NULL) {
 926             BIO_free(indata);
 927             if ((indata = BIO_new_file(contfile, "rb")) == NULL) {
 928                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
 929                 goto end;
 930             }
 931         }
 932         if (certsoutfile != NULL) {
 933             STACK_OF(X509) *allcerts;
 934             allcerts = CMS_get1_certs(cms);
 935             if (!save_certs(certsoutfile, allcerts)) {
 936                 BIO_printf(bio_err,
 937                            "Error writing certs to %s\n", certsoutfile);
 938                 ret = 5;
 939                 goto end;
 940             }
 941             OSSL_STACK_OF_X509_free(allcerts);
 942         }
 943     }
 944
 945     if (rctfile != NULL) {
 946         char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 947
 948         if ((rctin = BIO_new_file(rctfile, rctmode)) == NULL) {
 949             BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
 950             goto end;
 951         }
 952
 953         rcms = load_content_info(rctformat, rctin, 0, NULL, "receipt");
 954         if (rcms == NULL)
 955             goto end;
 956     }
 957
 958     out = bio_open_default(outfile, 'w',
 959                            binary_files ? FORMAT_BINARY : outformat);
 960     if (out == NULL)
 961         goto end;
 962
 963     if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
 964         if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath,
 965                                   CAstore, noCAstore)) == NULL)
 966             goto end;
 967         X509_STORE_set_verify_cb(store, cms_cb);
 968         if (vpmtouched)
 969             X509_STORE_set1_param(store, vpm);
 970     }
 971
 972     ret = 3;
 973
 974     if (operation == SMIME_DATA_CREATE) {
 975         cms = CMS_data_create_ex(in, flags, libctx, app_get0_propq());
 976     } else if (operation == SMIME_DIGEST_CREATE) {
 977         cms = CMS_digest_create_ex(in, sign_md, flags, libctx, app_get0_propq());
 978     } else if (operation == SMIME_COMPRESS) {
 979         cms = CMS_compress(in, -1, flags);
 980     } else if (operation == SMIME_ENCRYPT) {
 981         int i;
 982         flags |= CMS_PARTIAL;
 983         cms = CMS_encrypt_ex(NULL, in, cipher, flags, libctx, app_get0_propq());
 984         if (cms == NULL)
 985             goto end;
 986         for (i = 0; i < sk_X509_num(encerts); i++) {
 987             CMS_RecipientInfo *ri;
 988             cms_key_param *kparam;
 989             int tflags = flags | CMS_KEY_PARAM;
 990             /* This flag enforces allocating the EVP_PKEY_CTX for the recipient here */
 991             EVP_PKEY_CTX *pctx;
 992             X509 *x = sk_X509_value(encerts, i);
 993             int res;
 994
 995             for (kparam = key_first; kparam; kparam = kparam->next) {
 996                 if (kparam->idx == i) {
 997                     break;
 998                 }
 999             }
1000             ri = CMS_add1_recipient(cms, x, key, originator, tflags);
1001             if (ri == NULL)
1002                 goto end;
1003
1004             pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
1005             if (kparam != NULL) {
1006                 if (!cms_set_pkey_param(pctx, kparam->param))
1007                     goto end;
1008             }
1009
1010             res = EVP_PKEY_CTX_ctrl(pctx, -1, -1,
1011                                     EVP_PKEY_CTRL_CIPHER,
1012                                     EVP_CIPHER_get_nid(cipher), NULL);
1013             if (res <= 0 && res != -2)
1014                 goto end;
1015
1016             if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
1017                     && wrap_cipher != NULL) {
1018                 EVP_CIPHER_CTX *wctx;
1019                 wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
1020                 EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
1021             }
1022         }
1023
1024         if (secret_key != NULL) {
1025             if (!CMS_add0_recipient_key(cms, NID_undef,
1026                                         secret_key, secret_keylen,
1027                                         secret_keyid, secret_keyidlen,
1028                                         NULL, NULL, NULL))
1029                 goto end;
1030             /* NULL these because call absorbs them */
1031             secret_key = NULL;
1032             secret_keyid = NULL;
1033         }
1034         if (pwri_pass != NULL) {
1035             pwri_tmp = (unsigned char *)OPENSSL_strdup((char *)pwri_pass);
1036             if (pwri_tmp == NULL)
1037                 goto end;
1038             if (CMS_add0_recipient_password(cms,
1039                                             -1, NID_undef, NID_undef,
1040                                             pwri_tmp, -1, NULL) == NULL)
1041                 goto end;
1042             pwri_tmp = NULL;
1043         }
1044         if (!(flags & CMS_STREAM)) {
1045             if (!CMS_final(cms, in, NULL, flags))
1046                 goto end;
1047         }
1048     } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
1049         cms = CMS_EncryptedData_encrypt_ex(in, cipher, secret_key,
1050                                            secret_keylen, flags, libctx, app_get0_propq());
1051
1052     } else if (operation == SMIME_SIGN_RECEIPT) {
1053         CMS_ContentInfo *srcms = NULL;
1054         STACK_OF(CMS_SignerInfo) *sis;
1055         CMS_SignerInfo *si;
1056         sis = CMS_get0_SignerInfos(cms);
1057         if (sis == NULL)
1058             goto end;
1059         si = sk_CMS_SignerInfo_value(sis, 0);
1060         srcms = CMS_sign_receipt(si, signer, key, other, flags);
1061         if (srcms == NULL)
1062             goto end;
1063         CMS_ContentInfo_free(cms);
1064         cms = srcms;
1065     } else if (operation & SMIME_SIGNERS) {
1066         int i;
1067         /*
1068          * If detached data content and not signing pre-computed digest, we
1069          * enable streaming if S/MIME output format.
1070          */
1071         if (operation == SMIME_SIGN) {
1072
1073             if ((flags & CMS_DETACHED) != 0 && digestbin == NULL) {
1074                 if (outformat == FORMAT_SMIME)
1075                     flags |= CMS_STREAM;
1076             }
1077             flags |= CMS_PARTIAL;
1078             cms = CMS_sign_ex(NULL, NULL, other, in, flags, libctx, app_get0_propq());
1079             if (cms == NULL)
1080                 goto end;
1081             if (econtent_type != NULL)
1082                 CMS_set1_eContentType(cms, econtent_type);
1083
1084             if (rr_to != NULL
1085                 && ((rr = make_receipt_request(rr_to, rr_allorfirst, rr_from))
1086                     == NULL)) {
1087                 BIO_puts(bio_err, "Signed Receipt Request Creation Error\n");
1088                 goto end;
1089             }
1090         } else {
1091             flags |= CMS_REUSE_DIGEST;
1092         }
1093         for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
1094             CMS_SignerInfo *si;
1095             cms_key_param *kparam;
1096             int tflags = flags;
1097             signerfile = sk_OPENSSL_STRING_value(sksigners, i);
1098             keyfile = sk_OPENSSL_STRING_value(skkeys, i);
1099
1100             signer = load_cert(signerfile, FORMAT_UNDEF, "signer certificate");
1101             if (signer == NULL) {
1102                 ret = 2;
1103                 goto end;
1104             }
1105             key = load_key(keyfile, keyform, 0, passin, e, "signing key");
1106             if (key == NULL) {
1107                 ret = 2;
1108                 goto end;
1109             }
1110
1111             for (kparam = key_first; kparam; kparam = kparam->next) {
1112                 if (kparam->idx == i) {
1113                     tflags |= CMS_KEY_PARAM;
1114                     break;
1115                 }
1116             }
1117             si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
1118             if (si == NULL)
1119                 goto end;
1120             if (kparam != NULL) {
1121                 EVP_PKEY_CTX *pctx;
1122                 pctx = CMS_SignerInfo_get0_pkey_ctx(si);
1123                 if (!cms_set_pkey_param(pctx, kparam->param))
1124                     goto end;
1125             }
1126             if (rr != NULL && !CMS_add1_ReceiptRequest(si, rr))
1127                 goto end;
1128             X509_free(signer);
1129             signer = NULL;
1130             EVP_PKEY_free(key);
1131             key = NULL;
1132         }
1133         /* If not streaming or resigning finalize structure */
1134         if (operation == SMIME_SIGN && digestbin != NULL
1135             && (flags & CMS_STREAM) == 0) {
1136             /* Use pre-computed digest instead of content */
1137             if (!CMS_final_digest(cms, digestbin, digestlen, NULL, flags))
1138                 goto end;
1139         } else if (operation == SMIME_SIGN && (flags & CMS_STREAM) == 0) {
1140             if (!CMS_final(cms, in, NULL, flags))
1141                 goto end;
1142         }
1143     }
1144
1145     if (cms == NULL) {
1146         BIO_printf(bio_err, "Error creating CMS structure\n");
1147         goto end;
1148     }
1149
1150     ret = 4;
1151     if (operation == SMIME_DECRYPT) {
1152         if (flags & CMS_DEBUG_DECRYPT)
1153             CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
1154
1155         if (secret_key != NULL) {
1156             if (!CMS_decrypt_set1_key(cms,
1157                                       secret_key, secret_keylen,
1158                                       secret_keyid, secret_keyidlen)) {
1159                 BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
1160                 goto end;
1161             }
1162         }
1163
1164         if (key != NULL) {
1165             if (!CMS_decrypt_set1_pkey_and_peer(cms, key, recip, originator)) {
1166                 BIO_puts(bio_err, "Error decrypting CMS using private key\n");
1167                 goto end;
1168             }
1169         }
1170
1171         if (pwri_pass != NULL) {
1172             if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
1173                 BIO_puts(bio_err, "Error decrypting CMS using password\n");
1174                 goto end;
1175             }
1176         }
1177
1178         if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
1179             BIO_printf(bio_err, "Error decrypting CMS structure\n");
1180             goto end;
1181         }
1182     } else if (operation == SMIME_DATA_OUT) {
1183         if (!CMS_data(cms, out, flags))
1184             goto end;
1185     } else if (operation == SMIME_UNCOMPRESS) {
1186         if (!CMS_uncompress(cms, indata, out, flags))
1187             goto end;
1188     } else if (operation == SMIME_DIGEST_VERIFY) {
1189         if (CMS_digest_verify(cms, indata, out, flags) > 0) {
1190             BIO_printf(bio_err, "Verification successful\n");
1191         } else {
1192             BIO_printf(bio_err, "Verification failure\n");
1193             goto end;
1194         }
1195     } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
1196         if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1197                                        indata, out, flags))
1198             goto end;
1199     } else if (operation == SMIME_VERIFY) {
1200         if (CMS_verify(cms, other, store, indata, out, flags) > 0) {
1201             BIO_printf(bio_err, "%s Verification successful\n",
1202                        (flags & CMS_CADES) != 0 ? "CAdES" : "CMS");
1203         } else {
1204             BIO_printf(bio_err, "%s Verification failure\n",
1205                        (flags & CMS_CADES) != 0 ? "CAdES" : "CMS");
1206             if (verify_retcode)
1207                 ret = verify_err + 32;
1208             goto end;
1209         }
1210         if (signerfile != NULL) {
1211             STACK_OF(X509) *signers = CMS_get0_signers(cms);
1212
1213             if (!save_certs(signerfile, signers)) {
1214                 BIO_printf(bio_err,
1215                            "Error writing signers to %s\n", signerfile);
1216                 ret = 5;
1217                 goto end;
1218             }
1219             sk_X509_free(signers);
1220         }
1221         if (rr_print)
1222             receipt_request_print(cms);
1223
1224     } else if (operation == SMIME_VERIFY_RECEIPT) {
1225         if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) {
1226             BIO_printf(bio_err, "Verification successful\n");
1227         } else {
1228             BIO_printf(bio_err, "Verification failure\n");
1229             goto end;
1230         }
1231     } else {
1232         if (noout) {
1233             if (print) {
1234                 ASN1_PCTX *pctx = NULL;
1235                 if (get_nameopt() != XN_FLAG_ONELINE) {
1236                     pctx = ASN1_PCTX_new();
1237                     if (pctx != NULL) { /* Print anyway if malloc failed */
1238                         ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT);
1239                         ASN1_PCTX_set_str_flags(pctx, get_nameopt());
1240                         ASN1_PCTX_set_nm_flags(pctx, get_nameopt());
1241                     }
1242                 }
1243                 CMS_ContentInfo_print_ctx(out, cms, 0, pctx);
1244                 ASN1_PCTX_free(pctx);
1245             }
1246         } else if (outformat == FORMAT_SMIME) {
1247             if (to)
1248                 BIO_printf(out, "To: %s%s", to, mime_eol);
1249             if (from)
1250                 BIO_printf(out, "From: %s%s", from, mime_eol);
1251             if (subject)
1252                 BIO_printf(out, "Subject: %s%s", subject, mime_eol);
1253             if (operation == SMIME_RESIGN)
1254                 ret = SMIME_write_CMS(out, cms, indata, flags);
1255             else
1256                 ret = SMIME_write_CMS(out, cms, in, flags);
1257         } else if (outformat == FORMAT_PEM) {
1258             ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1259         } else if (outformat == FORMAT_ASN1) {
1260             ret = i2d_CMS_bio_stream(out, cms, in, flags);
1261         } else {
1262             BIO_printf(bio_err, "Bad output format for CMS file\n");
1263             goto end;
1264         }
1265         if (ret <= 0) {
1266             ret = 6;
1267             goto end;
1268         }
1269     }
1270     ret = 0;
1271  end:
1272     if (ret)
1273         ERR_print_errors(bio_err);
1274     OSSL_STACK_OF_X509_free(encerts);
1275     OSSL_STACK_OF_X509_free(other);
1276     X509_VERIFY_PARAM_free(vpm);
1277     sk_OPENSSL_STRING_free(sksigners);
1278     sk_OPENSSL_STRING_free(skkeys);
1279     OPENSSL_free(secret_key);
1280     OPENSSL_free(secret_keyid);
1281     OPENSSL_free(pwri_tmp);
1282     ASN1_OBJECT_free(econtent_type);
1283     CMS_ReceiptRequest_free(rr);
1284     sk_OPENSSL_STRING_free(rr_to);
1285     sk_OPENSSL_STRING_free(rr_from);
1286     for (key_param = key_first; key_param;) {
1287         cms_key_param *tparam;
1288         sk_OPENSSL_STRING_free(key_param->param);
1289         tparam = key_param->next;
1290         OPENSSL_free(key_param);
1291         key_param = tparam;
1292     }
1293     X509_STORE_free(store);
1294     X509_free(cert);
1295     X509_free(recip);
1296     X509_free(signer);
1297     EVP_PKEY_free(key);
1298     EVP_CIPHER_free(cipher);
1299     EVP_CIPHER_free(wrap_cipher);
1300     EVP_MD_free(sign_md);
1301     CMS_ContentInfo_free(cms);
1302     CMS_ContentInfo_free(rcms);
1303     release_engine(e);
1304     BIO_free(rctin);
1305     BIO_free(in);
1306     BIO_free(indata);
1307     BIO_free_all(out);
1308     OPENSSL_free(digestbin);
1309     OPENSSL_free(passin);
1310     NCONF_free(conf);
1311     return ret;
1312 }
1313
1314 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1315 {
1316     int i;
1317     BIO *tmp;
1318     if (signerfile == NULL)
1319         return 1;
1320     tmp = BIO_new_file(signerfile, "w");
1321     if (tmp == NULL)
1322         return 0;
1323     for (i = 0; i < sk_X509_num(signers); i++)
1324         PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1325     BIO_free(tmp);
1326     return 1;
1327 }
1328
1329 /* Minimal callback just to output policy info (if any) */
1330
1331 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1332 {
1333     int error;
1334
1335     error = X509_STORE_CTX_get_error(ctx);
1336
1337     verify_err = error;
1338
1339     if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1340         && ((error != X509_V_OK) || (ok != 2)))
1341         return ok;
1342
1343     policies_print(ctx);
1344
1345     return ok;
1346
1347 }
1348
1349 static void gnames_stack_print(STACK_OF(GENERAL_NAMES) *gns)
1350 {
1351     STACK_OF(GENERAL_NAME) *gens;
1352     GENERAL_NAME *gen;
1353     int i, j;
1354
1355     for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1356         gens = sk_GENERAL_NAMES_value(gns, i);
1357         for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1358             gen = sk_GENERAL_NAME_value(gens, j);
1359             BIO_puts(bio_err, "    ");
1360             GENERAL_NAME_print(bio_err, gen);
1361             BIO_puts(bio_err, "\n");
1362         }
1363     }
1364     return;
1365 }
1366
1367 static void receipt_request_print(CMS_ContentInfo *cms)
1368 {
1369     STACK_OF(CMS_SignerInfo) *sis;
1370     CMS_SignerInfo *si;
1371     CMS_ReceiptRequest *rr;
1372     int allorfirst;
1373     STACK_OF(GENERAL_NAMES) *rto, *rlist;
1374     ASN1_STRING *scid;
1375     int i, rv;
1376     sis = CMS_get0_SignerInfos(cms);
1377     for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1378         si = sk_CMS_SignerInfo_value(sis, i);
1379         rv = CMS_get1_ReceiptRequest(si, &rr);
1380         BIO_printf(bio_err, "Signer %d:\n", i + 1);
1381         if (rv == 0) {
1382             BIO_puts(bio_err, "  No Receipt Request\n");
1383         } else if (rv < 0) {
1384             BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1385             ERR_print_errors(bio_err);
1386         } else {
1387             const char *id;
1388             int idlen;
1389             CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1390                                            &rlist, &rto);
1391             BIO_puts(bio_err, "  Signed Content ID:\n");
1392             idlen = ASN1_STRING_length(scid);
1393             id = (const char *)ASN1_STRING_get0_data(scid);
1394             BIO_dump_indent(bio_err, id, idlen, 4);
1395             BIO_puts(bio_err, "  Receipts From");
1396             if (rlist != NULL) {
1397                 BIO_puts(bio_err, " List:\n");
1398                 gnames_stack_print(rlist);
1399             } else if (allorfirst == 1) {
1400                 BIO_puts(bio_err, ": First Tier\n");
1401             } else if (allorfirst == 0) {
1402                 BIO_puts(bio_err, ": All\n");
1403             } else {
1404                 BIO_printf(bio_err, " Unknown (%d)\n", allorfirst);
1405             }
1406             BIO_puts(bio_err, "  Receipts To:\n");
1407             gnames_stack_print(rto);
1408         }
1409         CMS_ReceiptRequest_free(rr);
1410     }
1411 }
1412
1413 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
1414 {
1415     int i;
1416     STACK_OF(GENERAL_NAMES) *ret;
1417     GENERAL_NAMES *gens = NULL;
1418     GENERAL_NAME *gen = NULL;
1419     ret = sk_GENERAL_NAMES_new_null();
1420     if (ret == NULL)
1421         goto err;
1422     for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1423         char *str = sk_OPENSSL_STRING_value(ns, i);
1424         gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1425         if (gen == NULL)
1426             goto err;
1427         gens = GENERAL_NAMES_new();
1428         if (gens == NULL)
1429             goto err;
1430         if (!sk_GENERAL_NAME_push(gens, gen))
1431             goto err;
1432         gen = NULL;
1433         if (!sk_GENERAL_NAMES_push(ret, gens))
1434             goto err;
1435         gens = NULL;
1436     }
1437
1438     return ret;
1439
1440  err:
1441     sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1442     GENERAL_NAMES_free(gens);
1443     GENERAL_NAME_free(gen);
1444     return NULL;
1445 }
1446
1447 static CMS_ReceiptRequest
1448 *make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to, int rr_allorfirst,
1449                       STACK_OF(OPENSSL_STRING) *rr_from)
1450 {
1451     STACK_OF(GENERAL_NAMES) *rct_to = NULL, *rct_from = NULL;
1452
1453     rct_to = make_names_stack(rr_to);
1454     if (rct_to == NULL)
1455         goto err;
1456     if (rr_from != NULL) {
1457         rct_from = make_names_stack(rr_from);
1458         if (rct_from == NULL)
1459             goto err;
1460     } else {
1461         rct_from = NULL;
1462     }
1463     return CMS_ReceiptRequest_create0_ex(NULL, -1, rr_allorfirst, rct_from,
1464                                          rct_to, app_get0_libctx());
1465  err:
1466     sk_GENERAL_NAMES_pop_free(rct_to, GENERAL_NAMES_free);
1467     return NULL;
1468 }
1469
1470 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
1471                               STACK_OF(OPENSSL_STRING) *param)
1472 {
1473     char *keyopt;
1474     int i;
1475     if (sk_OPENSSL_STRING_num(param) <= 0)
1476         return 1;
1477     for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) {
1478         keyopt = sk_OPENSSL_STRING_value(param, i);
1479         if (pkey_ctrl_string(pctx, keyopt) <= 0) {
1480             BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt);
1481             ERR_print_errors(bio_err);
1482             return 0;
1483         }
1484     }
1485     return 1;
1486 }