crypto/openssl/apps/pkcs12.c

   1 /*
   2  * Copyright 1999-2024 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 #include <openssl/opensslconf.h>
  11
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include "apps.h"
  16 #include "progs.h"
  17 #include <openssl/crypto.h>
  18 #include <openssl/err.h>
  19 #include <openssl/pem.h>
  20 #include <openssl/pkcs12.h>
  21 #include <openssl/provider.h>
  22 #include <openssl/kdf.h>
  23
  24 #define NOKEYS          0x1
  25 #define NOCERTS         0x2
  26 #define INFO            0x4
  27 #define CLCERTS         0x8
  28 #define CACERTS         0x10
  29
  30 #define PASSWD_BUF_SIZE 2048
  31
  32 #define WARN_EXPORT(opt) \
  33     BIO_printf(bio_err, "Warning: -%s option ignored with -export\n", opt);
  34 #define WARN_NO_EXPORT(opt) \
  35     BIO_printf(bio_err, "Warning: -%s option ignored without -export\n", opt);
  36
  37 static int get_cert_chain(X509 *cert, X509_STORE *store,
  38                           STACK_OF(X509) *untrusted_certs,
  39                           STACK_OF(X509) **chain);
  40 int dump_certs_keys_p12(BIO *out, const PKCS12 *p12,
  41                         const char *pass, int passlen, int options,
  42                         char *pempass, const EVP_CIPHER *enc);
  43 int dump_certs_pkeys_bags(BIO *out, const STACK_OF(PKCS12_SAFEBAG) *bags,
  44                           const char *pass, int passlen, int options,
  45                           char *pempass, const EVP_CIPHER *enc);
  46 int dump_certs_pkeys_bag(BIO *out, const PKCS12_SAFEBAG *bags,
  47                          const char *pass, int passlen,
  48                          int options, char *pempass, const EVP_CIPHER *enc);
  49 void print_attribute(BIO *out, const ASN1_TYPE *av);
  50 int print_attribs(BIO *out, const STACK_OF(X509_ATTRIBUTE) *attrlst,
  51                   const char *name);
  52 void hex_prin(BIO *out, unsigned char *buf, int len);
  53 static int alg_print(const X509_ALGOR *alg);
  54 int cert_load(BIO *in, STACK_OF(X509) *sk);
  55 static int set_pbe(int *ppbe, const char *str);
  56
  57 typedef enum OPTION_choice {
  58     OPT_COMMON,
  59     OPT_CIPHER, OPT_NOKEYS, OPT_KEYEX, OPT_KEYSIG, OPT_NOCERTS, OPT_CLCERTS,
  60     OPT_CACERTS, OPT_NOOUT, OPT_INFO, OPT_CHAIN, OPT_TWOPASS, OPT_NOMACVER,
  61 #ifndef OPENSSL_NO_DES
  62     OPT_DESCERT,
  63 #endif
  64     OPT_EXPORT, OPT_ITER, OPT_NOITER, OPT_MACITER, OPT_NOMACITER,
  65     OPT_NOMAC, OPT_LMK, OPT_NODES, OPT_NOENC, OPT_MACALG, OPT_CERTPBE, OPT_KEYPBE,
  66     OPT_INKEY, OPT_CERTFILE, OPT_UNTRUSTED, OPT_PASSCERTS,
  67     OPT_NAME, OPT_CSP, OPT_CANAME,
  68     OPT_IN, OPT_OUT, OPT_PASSIN, OPT_PASSOUT, OPT_PASSWORD, OPT_CAPATH,
  69     OPT_CAFILE, OPT_CASTORE, OPT_NOCAPATH, OPT_NOCAFILE, OPT_NOCASTORE, OPT_ENGINE,
  70     OPT_R_ENUM, OPT_PROV_ENUM,
  71 #ifndef OPENSSL_NO_DES
  72     OPT_LEGACY_ALG
  73 #endif
  74 } OPTION_CHOICE;
  75
  76 const OPTIONS pkcs12_options[] = {
  77     OPT_SECTION("General"),
  78     {"help", OPT_HELP, '-', "Display this summary"},
  79     {"in", OPT_IN, '<', "Input file"},
  80     {"out", OPT_OUT, '>', "Output file"},
  81     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
  82     {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
  83     {"password", OPT_PASSWORD, 's', "Set PKCS#12 import/export password source"},
  84     {"twopass", OPT_TWOPASS, '-', "Separate MAC, encryption passwords"},
  85     {"nokeys", OPT_NOKEYS, '-', "Don't output private keys"},
  86     {"nocerts", OPT_NOCERTS, '-', "Don't output certificates"},
  87     {"noout", OPT_NOOUT, '-', "Don't output anything, just verify PKCS#12 input"},
  88 #ifndef OPENSSL_NO_DES
  89     {"legacy", OPT_LEGACY_ALG, '-',
  90 # ifdef OPENSSL_NO_RC2
  91      "Use legacy encryption algorithm 3DES_CBC for keys and certs"
  92 # else
  93      "Use legacy encryption: 3DES_CBC for keys, RC2_CBC for certs"
  94 # endif
  95     },
  96 #endif
  97 #ifndef OPENSSL_NO_ENGINE
  98     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
  99 #endif
 100     OPT_PROV_OPTIONS,
 101     OPT_R_OPTIONS,
 102
 103     OPT_SECTION("PKCS#12 import (parsing PKCS#12)"),
 104     {"info", OPT_INFO, '-', "Print info about PKCS#12 structure"},
 105     {"nomacver", OPT_NOMACVER, '-', "Don't verify integrity MAC"},
 106     {"clcerts", OPT_CLCERTS, '-', "Only output client certificates"},
 107     {"cacerts", OPT_CACERTS, '-', "Only output CA certificates"},
 108     {"", OPT_CIPHER, '-', "Any supported cipher for output encryption"},
 109     {"noenc", OPT_NOENC, '-', "Don't encrypt private keys"},
 110     {"nodes", OPT_NODES, '-', "Don't encrypt private keys; deprecated"},
 111
 112     OPT_SECTION("PKCS#12 output (export)"),
 113     {"export", OPT_EXPORT, '-', "Create PKCS12 file"},
 114     {"inkey", OPT_INKEY, 's', "Private key, else read from -in input file"},
 115     {"certfile", OPT_CERTFILE, '<', "Extra certificates for PKCS12 output"},
 116     {"passcerts", OPT_PASSCERTS, 's', "Certificate file pass phrase source"},
 117     {"chain", OPT_CHAIN, '-', "Build and add certificate chain for EE cert,"},
 118     {OPT_MORE_STR, 0, 0,
 119      "which is the 1st cert from -in matching the private key (if given)"},
 120     {"untrusted", OPT_UNTRUSTED, '<', "Untrusted certificates for chain building"},
 121     {"CAfile", OPT_CAFILE, '<', "PEM-format file of CA's"},
 122     {"CApath", OPT_CAPATH, '/', "PEM-format directory of CA's"},
 123     {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"},
 124     {"no-CAfile", OPT_NOCAFILE, '-',
 125      "Do not load the default certificates file"},
 126     {"no-CApath", OPT_NOCAPATH, '-',
 127      "Do not load certificates from the default certificates directory"},
 128     {"no-CAstore", OPT_NOCASTORE, '-',
 129      "Do not load certificates from the default certificates store"},
 130     {"name", OPT_NAME, 's', "Use name as friendly name"},
 131     {"caname", OPT_CANAME, 's',
 132      "Use name as CA friendly name (can be repeated)"},
 133     {"CSP", OPT_CSP, 's', "Microsoft CSP name"},
 134     {"LMK", OPT_LMK, '-',
 135      "Add local machine keyset attribute to private key"},
 136     {"keyex", OPT_KEYEX, '-', "Set key type to MS key exchange"},
 137     {"keysig", OPT_KEYSIG, '-', "Set key type to MS key signature"},
 138     {"keypbe", OPT_KEYPBE, 's', "Private key PBE algorithm (default AES-256 CBC)"},
 139     {"certpbe", OPT_CERTPBE, 's',
 140      "Certificate PBE algorithm (default PBES2 with PBKDF2 and AES-256 CBC)"},
 141 #ifndef OPENSSL_NO_DES
 142     {"descert", OPT_DESCERT, '-',
 143      "Encrypt output with 3DES (default PBES2 with PBKDF2 and AES-256 CBC)"},
 144 #endif
 145     {"macalg", OPT_MACALG, 's',
 146      "Digest algorithm to use in MAC (default SHA256)"},
 147     {"iter", OPT_ITER, 'p', "Specify the iteration count for encryption and MAC"},
 148     {"noiter", OPT_NOITER, '-', "Don't use encryption iteration"},
 149     {"nomaciter", OPT_NOMACITER, '-', "Don't use MAC iteration)"},
 150     {"maciter", OPT_MACITER, '-', "Unused, kept for backwards compatibility"},
 151     {"nomac", OPT_NOMAC, '-', "Don't generate MAC"},
 152     {NULL}
 153 };
 154
 155 int pkcs12_main(int argc, char **argv)
 156 {
 157     char *infile = NULL, *outfile = NULL, *keyname = NULL, *certfile = NULL;
 158     char *untrusted = NULL, *ciphername = NULL, *enc_flag = NULL;
 159     char *passcertsarg = NULL, *passcerts = NULL;
 160     char *name = NULL, *csp_name = NULL;
 161     char pass[PASSWD_BUF_SIZE] = "", macpass[PASSWD_BUF_SIZE] = "";
 162     int export_pkcs12 = 0, options = 0, chain = 0, twopass = 0, keytype = 0;
 163 #ifndef OPENSSL_NO_DES
 164     int use_legacy = 0;
 165 #endif
 166     /* use library defaults for the iter, maciter, cert, and key PBE */
 167     int iter = 0, maciter = 0;
 168     int cert_pbe = NID_undef;
 169     int key_pbe = NID_undef;
 170     int ret = 1, macver = 1, add_lmk = 0, private = 0;
 171     int noprompt = 0;
 172     char *passinarg = NULL, *passoutarg = NULL, *passarg = NULL;
 173     char *passin = NULL, *passout = NULL, *macalg = NULL;
 174     char *cpass = NULL, *mpass = NULL, *badpass = NULL;
 175     const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL, *prog;
 176     int noCApath = 0, noCAfile = 0, noCAstore = 0;
 177     ENGINE *e = NULL;
 178     BIO *in = NULL, *out = NULL;
 179     PKCS12 *p12 = NULL;
 180     STACK_OF(OPENSSL_STRING) *canames = NULL;
 181     EVP_CIPHER *default_enc = (EVP_CIPHER *)EVP_aes_256_cbc();
 182     EVP_CIPHER *enc = (EVP_CIPHER *)default_enc;
 183     OPTION_CHOICE o;
 184
 185     prog = opt_init(argc, argv, pkcs12_options);
 186     while ((o = opt_next()) != OPT_EOF) {
 187         switch (o) {
 188         case OPT_EOF:
 189         case OPT_ERR:
 190  opthelp:
 191             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 192             goto end;
 193         case OPT_HELP:
 194             opt_help(pkcs12_options);
 195             ret = 0;
 196             goto end;
 197         case OPT_NOKEYS:
 198             options |= NOKEYS;
 199             break;
 200         case OPT_KEYEX:
 201             keytype = KEY_EX;
 202             break;
 203         case OPT_KEYSIG:
 204             keytype = KEY_SIG;
 205             break;
 206         case OPT_NOCERTS:
 207             options |= NOCERTS;
 208             break;
 209         case OPT_CLCERTS:
 210             options |= CLCERTS;
 211             break;
 212         case OPT_CACERTS:
 213             options |= CACERTS;
 214             break;
 215         case OPT_NOOUT:
 216             options |= (NOKEYS | NOCERTS);
 217             break;
 218         case OPT_INFO:
 219             options |= INFO;
 220             break;
 221         case OPT_CHAIN:
 222             chain = 1;
 223             break;
 224         case OPT_TWOPASS:
 225             twopass = 1;
 226             break;
 227         case OPT_NOMACVER:
 228             macver = 0;
 229             break;
 230 #ifndef OPENSSL_NO_DES
 231         case OPT_DESCERT:
 232             cert_pbe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 233             break;
 234 #endif
 235         case OPT_EXPORT:
 236             export_pkcs12 = 1;
 237             break;
 238         case OPT_NODES:
 239         case OPT_NOENC:
 240             /*
 241              * |enc_flag| stores the name of the option used so it
 242              * can be printed if an error message is output.
 243              */
 244             enc_flag = opt_flag() + 1;
 245             enc = NULL;
 246             ciphername = NULL;
 247             break;
 248         case OPT_CIPHER:
 249             ciphername = opt_unknown();
 250             enc_flag = opt_unknown();
 251             break;
 252         case OPT_ITER:
 253             maciter = iter = opt_int_arg();
 254             break;
 255         case OPT_NOITER:
 256             iter = 1;
 257             break;
 258         case OPT_MACITER:
 259             /* no-op */
 260             break;
 261         case OPT_NOMACITER:
 262             maciter = 1;
 263             break;
 264         case OPT_NOMAC:
 265             cert_pbe = -1;
 266             maciter = -1;
 267             break;
 268         case OPT_MACALG:
 269             macalg = opt_arg();
 270             break;
 271         case OPT_CERTPBE:
 272             if (!set_pbe(&cert_pbe, opt_arg()))
 273                 goto opthelp;
 274             break;
 275         case OPT_KEYPBE:
 276             if (!set_pbe(&key_pbe, opt_arg()))
 277                 goto opthelp;
 278             break;
 279         case OPT_R_CASES:
 280             if (!opt_rand(o))
 281                 goto end;
 282             break;
 283         case OPT_INKEY:
 284             keyname = opt_arg();
 285             break;
 286         case OPT_CERTFILE:
 287             certfile = opt_arg();
 288             break;
 289         case OPT_UNTRUSTED:
 290             untrusted = opt_arg();
 291             break;
 292         case OPT_PASSCERTS:
 293             passcertsarg = opt_arg();
 294             break;
 295         case OPT_NAME:
 296             name = opt_arg();
 297             break;
 298         case OPT_LMK:
 299             add_lmk = 1;
 300             break;
 301         case OPT_CSP:
 302             csp_name = opt_arg();
 303             break;
 304         case OPT_CANAME:
 305             if (canames == NULL
 306                 && (canames = sk_OPENSSL_STRING_new_null()) == NULL)
 307                 goto end;
 308             sk_OPENSSL_STRING_push(canames, opt_arg());
 309             break;
 310         case OPT_IN:
 311             infile = opt_arg();
 312             break;
 313         case OPT_OUT:
 314             outfile = opt_arg();
 315             break;
 316         case OPT_PASSIN:
 317             passinarg = opt_arg();
 318             break;
 319         case OPT_PASSOUT:
 320             passoutarg = opt_arg();
 321             break;
 322         case OPT_PASSWORD:
 323             passarg = opt_arg();
 324             break;
 325         case OPT_CAPATH:
 326             CApath = opt_arg();
 327             break;
 328         case OPT_CASTORE:
 329             CAstore = opt_arg();
 330             break;
 331         case OPT_CAFILE:
 332             CAfile = opt_arg();
 333             break;
 334         case OPT_NOCAPATH:
 335             noCApath = 1;
 336             break;
 337         case OPT_NOCASTORE:
 338             noCAstore = 1;
 339             break;
 340         case OPT_NOCAFILE:
 341             noCAfile = 1;
 342             break;
 343         case OPT_ENGINE:
 344             e = setup_engine(opt_arg(), 0);
 345             break;
 346 #ifndef OPENSSL_NO_DES
 347         case OPT_LEGACY_ALG:
 348             use_legacy = 1;
 349             break;
 350 #endif
 351         case OPT_PROV_CASES:
 352             if (!opt_provider(o))
 353                 goto end;
 354             break;
 355         }
 356     }
 357
 358     /* No extra arguments. */
 359     argc = opt_num_rest();
 360     if (argc != 0)
 361         goto opthelp;
 362
 363     if (!app_RAND_load())
 364         goto end;
 365
 366     if (ciphername != NULL) {
 367         if (!opt_cipher_any(ciphername, &enc))
 368             goto opthelp;
 369     }
 370     if (export_pkcs12) {
 371         if ((options & INFO) != 0)
 372             WARN_EXPORT("info");
 373         if (macver == 0)
 374             WARN_EXPORT("nomacver");
 375         if ((options & CLCERTS) != 0)
 376             WARN_EXPORT("clcerts");
 377         if ((options & CACERTS) != 0)
 378             WARN_EXPORT("cacerts");
 379         if (enc != default_enc)
 380             BIO_printf(bio_err,
 381                        "Warning: output encryption option -%s ignored with -export\n", enc_flag);
 382     } else {
 383         if (keyname != NULL)
 384             WARN_NO_EXPORT("inkey");
 385         if (certfile != NULL)
 386             WARN_NO_EXPORT("certfile");
 387         if (passcertsarg != NULL)
 388             WARN_NO_EXPORT("passcerts");
 389         if (chain)
 390             WARN_NO_EXPORT("chain");
 391         if (untrusted != NULL)
 392             WARN_NO_EXPORT("untrusted");
 393         if (CAfile != NULL)
 394             WARN_NO_EXPORT("CAfile");
 395         if (CApath != NULL)
 396             WARN_NO_EXPORT("CApath");
 397         if (CAstore != NULL)
 398             WARN_NO_EXPORT("CAstore");
 399         if (noCAfile)
 400             WARN_NO_EXPORT("no-CAfile");
 401         if (noCApath)
 402             WARN_NO_EXPORT("no-CApath");
 403         if (noCAstore)
 404             WARN_NO_EXPORT("no-CAstore");
 405         if (name != NULL)
 406             WARN_NO_EXPORT("name");
 407         if (canames != NULL)
 408             WARN_NO_EXPORT("caname");
 409         if (csp_name != NULL)
 410             WARN_NO_EXPORT("CSP");
 411         if (add_lmk)
 412             WARN_NO_EXPORT("LMK");
 413         if (keytype == KEY_EX)
 414             WARN_NO_EXPORT("keyex");
 415         if (keytype == KEY_SIG)
 416             WARN_NO_EXPORT("keysig");
 417         if (key_pbe != NID_undef)
 418             WARN_NO_EXPORT("keypbe");
 419         if (cert_pbe != NID_undef && cert_pbe != -1)
 420             WARN_NO_EXPORT("certpbe and -descert");
 421         if (macalg != NULL)
 422             WARN_NO_EXPORT("macalg");
 423         if (iter != 0)
 424             WARN_NO_EXPORT("iter and -noiter");
 425         if (maciter == 1)
 426             WARN_NO_EXPORT("nomaciter");
 427         if (cert_pbe == -1 && maciter == -1)
 428             WARN_NO_EXPORT("nomac");
 429     }
 430 #ifndef OPENSSL_NO_DES
 431     if (use_legacy) {
 432         /* load the legacy provider if not loaded already*/
 433         if (!OSSL_PROVIDER_available(app_get0_libctx(), "legacy")) {
 434             if (!app_provider_load(app_get0_libctx(), "legacy"))
 435                 goto end;
 436             /* load the default provider explicitly */
 437             if (!app_provider_load(app_get0_libctx(), "default"))
 438                 goto end;
 439         }
 440         if (cert_pbe == NID_undef) {
 441             /* Adapt default algorithm */
 442 # ifndef OPENSSL_NO_RC2
 443             cert_pbe = NID_pbe_WithSHA1And40BitRC2_CBC;
 444 # else
 445             cert_pbe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 446 # endif
 447         }
 448
 449         if (key_pbe == NID_undef)
 450             key_pbe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 451         if (enc == default_enc)
 452             enc = (EVP_CIPHER *)EVP_des_ede3_cbc();
 453         if (macalg == NULL)
 454             macalg = "sha1";
 455     }
 456 #endif
 457
 458     private = 1;
 459
 460     if (!app_passwd(passcertsarg, NULL, &passcerts, NULL)) {
 461         BIO_printf(bio_err, "Error getting certificate file password\n");
 462         goto end;
 463     }
 464
 465     if (passarg != NULL) {
 466         if (export_pkcs12)
 467             passoutarg = passarg;
 468         else
 469             passinarg = passarg;
 470     }
 471
 472     if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
 473         BIO_printf(bio_err, "Error getting passwords\n");
 474         goto end;
 475     }
 476
 477     if (cpass == NULL) {
 478         if (export_pkcs12)
 479             cpass = passout;
 480         else
 481             cpass = passin;
 482     }
 483
 484     if (cpass != NULL) {
 485         mpass = cpass;
 486         noprompt = 1;
 487         if (twopass) {
 488             if (export_pkcs12)
 489                 BIO_printf(bio_err, "Option -twopass cannot be used with -passout or -password\n");
 490             else
 491                 BIO_printf(bio_err, "Option -twopass cannot be used with -passin or -password\n");
 492             goto end;
 493         }
 494     } else {
 495         cpass = pass;
 496         mpass = macpass;
 497     }
 498
 499     if (twopass) {
 500         /* To avoid bit rot */
 501         if (1) {
 502 #ifndef OPENSSL_NO_UI_CONSOLE
 503             if (EVP_read_pw_string(
 504                 macpass, sizeof(macpass), "Enter MAC Password:", export_pkcs12)) {
 505                 BIO_printf(bio_err, "Can't read Password\n");
 506                 goto end;
 507             }
 508         } else {
 509 #endif
 510             BIO_printf(bio_err, "Unsupported option -twopass\n");
 511             goto end;
 512         }
 513     }
 514
 515     if (export_pkcs12) {
 516         EVP_PKEY *key = NULL;
 517         X509 *ee_cert = NULL, *x = NULL;
 518         STACK_OF(X509) *certs = NULL;
 519         STACK_OF(X509) *untrusted_certs = NULL;
 520         EVP_MD *macmd = NULL;
 521         unsigned char *catmp = NULL;
 522         int i;
 523
 524         if ((options & (NOCERTS | NOKEYS)) == (NOCERTS | NOKEYS)) {
 525             BIO_printf(bio_err, "Nothing to export due to -noout or -nocerts and -nokeys\n");
 526             goto export_end;
 527         }
 528
 529         if ((options & NOCERTS) != 0) {
 530             chain = 0;
 531             BIO_printf(bio_err, "Warning: -chain option ignored with -nocerts\n");
 532         }
 533
 534         if (!(options & NOKEYS)) {
 535             key = load_key(keyname ? keyname : infile,
 536                            FORMAT_PEM, 1, passin, e,
 537                            keyname ?
 538                            "private key from -inkey file" :
 539                            "private key from -in file");
 540             if (key == NULL)
 541                 goto export_end;
 542         }
 543
 544         /* Load all certs in input file */
 545         if (!(options & NOCERTS)) {
 546             if (!load_certs(infile, 1, &certs, passin,
 547                             "certificates from -in file"))
 548                 goto export_end;
 549             if (sk_X509_num(certs) < 1) {
 550                 BIO_printf(bio_err, "No certificate in -in file %s\n", infile);
 551                 goto export_end;
 552             }
 553
 554             if (key != NULL) {
 555                 /* Look for matching private key */
 556                 for (i = 0; i < sk_X509_num(certs); i++) {
 557                     x = sk_X509_value(certs, i);
 558                     if (X509_check_private_key(x, key)) {
 559                         ee_cert = x;
 560                         /* Zero keyid and alias */
 561                         X509_keyid_set1(ee_cert, NULL, 0);
 562                         X509_alias_set1(ee_cert, NULL, 0);
 563                         /* Remove from list */
 564                         (void)sk_X509_delete(certs, i);
 565                         break;
 566                     }
 567                 }
 568                 if (ee_cert == NULL) {
 569                     BIO_printf(bio_err,
 570                                "No cert in -in file '%s' matches private key\n",
 571                                infile);
 572                     goto export_end;
 573                 }
 574             }
 575         }
 576
 577         /* Load any untrusted certificates for chain building */
 578         if (untrusted != NULL) {
 579             if (!load_certs(untrusted, 0, &untrusted_certs, passcerts,
 580                             "untrusted certificates"))
 581                 goto export_end;
 582         }
 583
 584         /* If chaining get chain from end entity cert */
 585         if (chain) {
 586             int vret;
 587             STACK_OF(X509) *chain2;
 588             X509_STORE *store;
 589             X509 *ee_cert_tmp = ee_cert;
 590
 591             /* Assume the first cert if we haven't got anything else */
 592             if (ee_cert_tmp == NULL && certs != NULL)
 593                 ee_cert_tmp = sk_X509_value(certs, 0);
 594
 595             if (ee_cert_tmp == NULL) {
 596                 BIO_printf(bio_err,
 597                            "No end entity certificate to check with -chain\n");
 598                 goto export_end;
 599             }
 600
 601             if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath,
 602                                       CAstore, noCAstore))
 603                     == NULL)
 604                 goto export_end;
 605
 606             vret = get_cert_chain(ee_cert_tmp, store, untrusted_certs, &chain2);
 607             X509_STORE_free(store);
 608
 609             if (vret == X509_V_OK) {
 610                 int add_certs;
 611                 /* Remove from chain2 the first (end entity) certificate */
 612                 X509_free(sk_X509_shift(chain2));
 613                 /* Add the remaining certs (except for duplicates) */
 614                 add_certs = X509_add_certs(certs, chain2, X509_ADD_FLAG_UP_REF
 615                                            | X509_ADD_FLAG_NO_DUP);
 616                 sk_X509_pop_free(chain2, X509_free);
 617                 if (!add_certs)
 618                     goto export_end;
 619             } else {
 620                 if (vret != X509_V_ERR_UNSPECIFIED)
 621                     BIO_printf(bio_err, "Error getting chain: %s\n",
 622                                X509_verify_cert_error_string(vret));
 623                 goto export_end;
 624             }
 625         }
 626
 627         /* Add any extra certificates asked for */
 628         if (certfile != NULL) {
 629             if (!load_certs(certfile, 0, &certs, passcerts,
 630                             "extra certificates from -certfile"))
 631                 goto export_end;
 632         }
 633
 634         /* Add any CA names */
 635         for (i = 0; i < sk_OPENSSL_STRING_num(canames); i++) {
 636             catmp = (unsigned char *)sk_OPENSSL_STRING_value(canames, i);
 637             X509_alias_set1(sk_X509_value(certs, i), catmp, -1);
 638         }
 639
 640         if (csp_name != NULL && key != NULL)
 641             EVP_PKEY_add1_attr_by_NID(key, NID_ms_csp_name,
 642                                       MBSTRING_ASC, (unsigned char *)csp_name,
 643                                       -1);
 644
 645         if (add_lmk && key != NULL)
 646             EVP_PKEY_add1_attr_by_NID(key, NID_LocalKeySet, 0, NULL, -1);
 647
 648         if (!noprompt && !(enc == NULL && maciter == -1)) {
 649             /* To avoid bit rot */
 650             if (1) {
 651 #ifndef OPENSSL_NO_UI_CONSOLE
 652                 if (EVP_read_pw_string(pass, sizeof(pass),
 653                                        "Enter Export Password:", 1)) {
 654                     BIO_printf(bio_err, "Can't read Password\n");
 655                     goto export_end;
 656                 }
 657             } else {
 658 #endif
 659                 BIO_printf(bio_err, "Password required\n");
 660                 goto export_end;
 661             }
 662         }
 663
 664         if (!twopass)
 665             OPENSSL_strlcpy(macpass, pass, sizeof(macpass));
 666
 667         p12 = PKCS12_create_ex(cpass, name, key, ee_cert, certs,
 668                                key_pbe, cert_pbe, iter, -1, keytype,
 669                                app_get0_libctx(), app_get0_propq());
 670
 671         if (p12 == NULL) {
 672             BIO_printf(bio_err, "Error creating PKCS12 structure for %s\n",
 673                        outfile);
 674             goto export_end;
 675         }
 676
 677         if (macalg != NULL) {
 678             if (!opt_md(macalg, &macmd))
 679                 goto opthelp;
 680         }
 681
 682         if (maciter != -1)
 683             if (!PKCS12_set_mac(p12, mpass, -1, NULL, 0, maciter, macmd)) {
 684                 BIO_printf(bio_err, "Error creating PKCS12 MAC; no PKCS12KDF support?\n");
 685                 BIO_printf(bio_err, "Use -nomac if MAC not required and PKCS12KDF support not available.\n");
 686                 goto export_end;
 687             }
 688
 689         assert(private);
 690
 691         out = bio_open_owner(outfile, FORMAT_PKCS12, private);
 692         if (out == NULL)
 693             goto end;
 694
 695         i2d_PKCS12_bio(out, p12);
 696
 697         ret = 0;
 698
 699  export_end:
 700
 701         EVP_PKEY_free(key);
 702         EVP_MD_free(macmd);
 703         sk_X509_pop_free(certs, X509_free);
 704         sk_X509_pop_free(untrusted_certs, X509_free);
 705         X509_free(ee_cert);
 706
 707         ERR_print_errors(bio_err);
 708         goto end;
 709
 710     }
 711
 712     in = bio_open_default(infile, 'r', FORMAT_PKCS12);
 713     if (in == NULL)
 714         goto end;
 715
 716     p12 = PKCS12_init_ex(NID_pkcs7_data, app_get0_libctx(), app_get0_propq());
 717     if (p12 == NULL) {
 718         ERR_print_errors(bio_err);
 719         goto end;
 720     }
 721     if ((p12 = d2i_PKCS12_bio(in, &p12)) == NULL) {
 722         ERR_print_errors(bio_err);
 723         goto end;
 724     }
 725
 726     if (!noprompt) {
 727         if (1) {
 728 #ifndef OPENSSL_NO_UI_CONSOLE
 729             if (EVP_read_pw_string(pass, sizeof(pass), "Enter Import Password:",
 730                                    0)) {
 731                 BIO_printf(bio_err, "Can't read Password\n");
 732                 goto end;
 733             }
 734         } else {
 735 #endif
 736             BIO_printf(bio_err, "Password required\n");
 737             goto end;
 738         }
 739     }
 740
 741     if (!twopass)
 742         OPENSSL_strlcpy(macpass, pass, sizeof(macpass));
 743
 744     if ((options & INFO) && PKCS12_mac_present(p12)) {
 745         const ASN1_INTEGER *tmaciter;
 746         const X509_ALGOR *macalgid;
 747         const ASN1_OBJECT *macobj;
 748         const ASN1_OCTET_STRING *tmac;
 749         const ASN1_OCTET_STRING *tsalt;
 750
 751         PKCS12_get0_mac(&tmac, &macalgid, &tsalt, &tmaciter, p12);
 752         /* current hash algorithms do not use parameters so extract just name,
 753            in future alg_print() may be needed */
 754         X509_ALGOR_get0(&macobj, NULL, NULL, macalgid);
 755         BIO_puts(bio_err, "MAC: ");
 756         i2a_ASN1_OBJECT(bio_err, macobj);
 757         BIO_printf(bio_err, ", Iteration %ld\n",
 758                    tmaciter != NULL ? ASN1_INTEGER_get(tmaciter) : 1L);
 759         BIO_printf(bio_err, "MAC length: %ld, salt length: %ld\n",
 760                    tmac != NULL ? ASN1_STRING_length(tmac) : 0L,
 761                    tsalt != NULL ? ASN1_STRING_length(tsalt) : 0L);
 762     }
 763     if (macver) {
 764         EVP_KDF *pkcs12kdf;
 765
 766         pkcs12kdf = EVP_KDF_fetch(app_get0_libctx(), "PKCS12KDF",
 767                                   app_get0_propq());
 768         if (pkcs12kdf == NULL) {
 769             BIO_printf(bio_err, "Error verifying PKCS12 MAC; no PKCS12KDF support.\n");
 770             BIO_printf(bio_err, "Use -nomacver if MAC verification is not required.\n");
 771             goto end;
 772         }
 773         EVP_KDF_free(pkcs12kdf);
 774         /* If we enter empty password try no password first */
 775         if (!mpass[0] && PKCS12_verify_mac(p12, NULL, 0)) {
 776             /* If mac and crypto pass the same set it to NULL too */
 777             if (!twopass)
 778                 cpass = NULL;
 779         } else if (!PKCS12_verify_mac(p12, mpass, -1)) {
 780             /*
 781              * May be UTF8 from previous version of OpenSSL:
 782              * convert to a UTF8 form which will translate
 783              * to the same Unicode password.
 784              */
 785             unsigned char *utmp;
 786             int utmplen;
 787             unsigned long err = ERR_peek_error();
 788
 789             if (ERR_GET_LIB(err) == ERR_LIB_PKCS12
 790                 && ERR_GET_REASON(err) == PKCS12_R_MAC_ABSENT) {
 791                 BIO_printf(bio_err, "Warning: MAC is absent!\n");
 792                 goto dump;
 793             }
 794
 795             utmp = OPENSSL_asc2uni(mpass, -1, NULL, &utmplen);
 796             if (utmp == NULL)
 797                 goto end;
 798             badpass = OPENSSL_uni2utf8(utmp, utmplen);
 799             OPENSSL_free(utmp);
 800             if (!PKCS12_verify_mac(p12, badpass, -1)) {
 801                 BIO_printf(bio_err, "Mac verify error: invalid password?\n");
 802                 ERR_print_errors(bio_err);
 803                 goto end;
 804             } else {
 805                 BIO_printf(bio_err, "Warning: using broken algorithm\n");
 806                 if (!twopass)
 807                     cpass = badpass;
 808             }
 809         }
 810     }
 811
 812  dump:
 813     assert(private);
 814
 815     out = bio_open_owner(outfile, FORMAT_PEM, private);
 816     if (out == NULL)
 817         goto end;
 818
 819     if (!dump_certs_keys_p12(out, p12, cpass, -1, options, passout, enc)) {
 820         BIO_printf(bio_err, "Error outputting keys and certificates\n");
 821         ERR_print_errors(bio_err);
 822         goto end;
 823     }
 824     ret = 0;
 825  end:
 826     PKCS12_free(p12);
 827     release_engine(e);
 828     BIO_free(in);
 829     BIO_free_all(out);
 830     sk_OPENSSL_STRING_free(canames);
 831     OPENSSL_free(badpass);
 832     OPENSSL_free(passcerts);
 833     OPENSSL_free(passin);
 834     OPENSSL_free(passout);
 835     return ret;
 836 }
 837
 838 int dump_certs_keys_p12(BIO *out, const PKCS12 *p12, const char *pass,
 839                         int passlen, int options, char *pempass,
 840                         const EVP_CIPHER *enc)
 841 {
 842     STACK_OF(PKCS7) *asafes = NULL;
 843     STACK_OF(PKCS12_SAFEBAG) *bags;
 844     int i, bagnid;
 845     int ret = 0;
 846     PKCS7 *p7;
 847
 848     if ((asafes = PKCS12_unpack_authsafes(p12)) == NULL)
 849         return 0;
 850     for (i = 0; i < sk_PKCS7_num(asafes); i++) {
 851         p7 = sk_PKCS7_value(asafes, i);
 852         bagnid = OBJ_obj2nid(p7->type);
 853         if (bagnid == NID_pkcs7_data) {
 854             bags = PKCS12_unpack_p7data(p7);
 855             if (options & INFO)
 856                 BIO_printf(bio_err, "PKCS7 Data\n");
 857         } else if (bagnid == NID_pkcs7_encrypted) {
 858             if (options & INFO) {
 859                 BIO_printf(bio_err, "PKCS7 Encrypted data: ");
 860                 if (p7->d.encrypted == NULL) {
 861                     BIO_printf(bio_err, "<no data>\n");
 862                 } else {
 863                     alg_print(p7->d.encrypted->enc_data->algorithm);
 864                 }
 865             }
 866             bags = PKCS12_unpack_p7encdata(p7, pass, passlen);
 867         } else {
 868             continue;
 869         }
 870         if (!bags)
 871             goto err;
 872         if (!dump_certs_pkeys_bags(out, bags, pass, passlen,
 873                                    options, pempass, enc)) {
 874             sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 875             goto err;
 876         }
 877         sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 878         bags = NULL;
 879     }
 880     ret = 1;
 881
 882  err:
 883     sk_PKCS7_pop_free(asafes, PKCS7_free);
 884     return ret;
 885 }
 886
 887 int dump_certs_pkeys_bags(BIO *out, const STACK_OF(PKCS12_SAFEBAG) *bags,
 888                           const char *pass, int passlen, int options,
 889                           char *pempass, const EVP_CIPHER *enc)
 890 {
 891     int i;
 892     for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
 893         if (!dump_certs_pkeys_bag(out,
 894                                   sk_PKCS12_SAFEBAG_value(bags, i),
 895                                   pass, passlen, options, pempass, enc))
 896             return 0;
 897     }
 898     return 1;
 899 }
 900
 901 int dump_certs_pkeys_bag(BIO *out, const PKCS12_SAFEBAG *bag,
 902                          const char *pass, int passlen, int options,
 903                          char *pempass, const EVP_CIPHER *enc)
 904 {
 905     EVP_PKEY *pkey;
 906     PKCS8_PRIV_KEY_INFO *p8;
 907     const PKCS8_PRIV_KEY_INFO *p8c;
 908     X509 *x509;
 909     const STACK_OF(X509_ATTRIBUTE) *attrs;
 910     int ret = 0;
 911
 912     attrs = PKCS12_SAFEBAG_get0_attrs(bag);
 913
 914     switch (PKCS12_SAFEBAG_get_nid(bag)) {
 915     case NID_keyBag:
 916         if (options & INFO)
 917             BIO_printf(bio_err, "Key bag\n");
 918         if (options & NOKEYS)
 919             return 1;
 920         print_attribs(out, attrs, "Bag Attributes");
 921         p8c = PKCS12_SAFEBAG_get0_p8inf(bag);
 922         if ((pkey = EVP_PKCS82PKEY(p8c)) == NULL)
 923             return 0;
 924         print_attribs(out, PKCS8_pkey_get0_attrs(p8c), "Key Attributes");
 925         ret = PEM_write_bio_PrivateKey(out, pkey, enc, NULL, 0, NULL, pempass);
 926         EVP_PKEY_free(pkey);
 927         break;
 928
 929     case NID_pkcs8ShroudedKeyBag:
 930         if (options & INFO) {
 931             const X509_SIG *tp8;
 932             const X509_ALGOR *tp8alg;
 933
 934             BIO_printf(bio_err, "Shrouded Keybag: ");
 935             tp8 = PKCS12_SAFEBAG_get0_pkcs8(bag);
 936             X509_SIG_get0(tp8, &tp8alg, NULL);
 937             alg_print(tp8alg);
 938         }
 939         if (options & NOKEYS)
 940             return 1;
 941         print_attribs(out, attrs, "Bag Attributes");
 942         if ((p8 = PKCS12_decrypt_skey(bag, pass, passlen)) == NULL)
 943             return 0;
 944         if ((pkey = EVP_PKCS82PKEY(p8)) == NULL) {
 945             PKCS8_PRIV_KEY_INFO_free(p8);
 946             return 0;
 947         }
 948         print_attribs(out, PKCS8_pkey_get0_attrs(p8), "Key Attributes");
 949         PKCS8_PRIV_KEY_INFO_free(p8);
 950         ret = PEM_write_bio_PrivateKey(out, pkey, enc, NULL, 0, NULL, pempass);
 951         EVP_PKEY_free(pkey);
 952         break;
 953
 954     case NID_certBag:
 955         if (options & INFO)
 956             BIO_printf(bio_err, "Certificate bag\n");
 957         if (options & NOCERTS)
 958             return 1;
 959         if (PKCS12_SAFEBAG_get0_attr(bag, NID_localKeyID)) {
 960             if (options & CACERTS)
 961                 return 1;
 962         } else if (options & CLCERTS)
 963             return 1;
 964         print_attribs(out, attrs, "Bag Attributes");
 965         if (PKCS12_SAFEBAG_get_bag_nid(bag) != NID_x509Certificate)
 966             return 1;
 967         if ((x509 = PKCS12_SAFEBAG_get1_cert(bag)) == NULL)
 968             return 0;
 969         dump_cert_text(out, x509);
 970         ret = PEM_write_bio_X509(out, x509);
 971         X509_free(x509);
 972         break;
 973
 974     case NID_secretBag:
 975         if (options & INFO)
 976             BIO_printf(bio_err, "Secret bag\n");
 977         print_attribs(out, attrs, "Bag Attributes");
 978         BIO_printf(bio_err, "Bag Type: ");
 979         i2a_ASN1_OBJECT(bio_err, PKCS12_SAFEBAG_get0_bag_type(bag));
 980         BIO_printf(bio_err, "\nBag Value: ");
 981         print_attribute(out, PKCS12_SAFEBAG_get0_bag_obj(bag));
 982         return 1;
 983
 984     case NID_safeContentsBag:
 985         if (options & INFO)
 986             BIO_printf(bio_err, "Safe Contents bag\n");
 987         print_attribs(out, attrs, "Bag Attributes");
 988         return dump_certs_pkeys_bags(out, PKCS12_SAFEBAG_get0_safes(bag),
 989                                      pass, passlen, options, pempass, enc);
 990
 991     default:
 992         BIO_printf(bio_err, "Warning unsupported bag type: ");
 993         i2a_ASN1_OBJECT(bio_err, PKCS12_SAFEBAG_get0_type(bag));
 994         BIO_printf(bio_err, "\n");
 995         return 1;
 996     }
 997     return ret;
 998 }
 999
1000 /* Given a single certificate return a verified chain or NULL if error */
1001
1002 static int get_cert_chain(X509 *cert, X509_STORE *store,
1003                           STACK_OF(X509) *untrusted_certs,
1004                           STACK_OF(X509) **chain)
1005 {
1006     X509_STORE_CTX *store_ctx = NULL;
1007     STACK_OF(X509) *chn = NULL;
1008     int i = 0;
1009
1010     store_ctx = X509_STORE_CTX_new_ex(app_get0_libctx(), app_get0_propq());
1011     if (store_ctx == NULL) {
1012         i =  X509_V_ERR_UNSPECIFIED;
1013         goto end;
1014     }
1015     if (!X509_STORE_CTX_init(store_ctx, store, cert, untrusted_certs)) {
1016         i =  X509_V_ERR_UNSPECIFIED;
1017         goto end;
1018     }
1019
1020
1021     if (X509_verify_cert(store_ctx) > 0)
1022         chn = X509_STORE_CTX_get1_chain(store_ctx);
1023     else if ((i = X509_STORE_CTX_get_error(store_ctx)) == 0)
1024         i = X509_V_ERR_UNSPECIFIED;
1025
1026 end:
1027     X509_STORE_CTX_free(store_ctx);
1028     *chain = chn;
1029     return i;
1030 }
1031
1032 static int alg_print(const X509_ALGOR *alg)
1033 {
1034     int pbenid, aparamtype;
1035     const ASN1_OBJECT *aoid;
1036     const void *aparam;
1037     PBEPARAM *pbe = NULL;
1038
1039     X509_ALGOR_get0(&aoid, &aparamtype, &aparam, alg);
1040
1041     pbenid = OBJ_obj2nid(aoid);
1042
1043     BIO_printf(bio_err, "%s", OBJ_nid2ln(pbenid));
1044
1045     /*
1046      * If PBE algorithm is PBES2 decode algorithm parameters
1047      * for additional details.
1048      */
1049     if (pbenid == NID_pbes2) {
1050         PBE2PARAM *pbe2 = NULL;
1051         int encnid;
1052         if (aparamtype == V_ASN1_SEQUENCE)
1053             pbe2 = ASN1_item_unpack(aparam, ASN1_ITEM_rptr(PBE2PARAM));
1054         if (pbe2 == NULL) {
1055             BIO_puts(bio_err, ", <unsupported parameters>");
1056             goto done;
1057         }
1058         X509_ALGOR_get0(&aoid, &aparamtype, &aparam, pbe2->keyfunc);
1059         pbenid = OBJ_obj2nid(aoid);
1060         X509_ALGOR_get0(&aoid, NULL, NULL, pbe2->encryption);
1061         encnid = OBJ_obj2nid(aoid);
1062         BIO_printf(bio_err, ", %s, %s", OBJ_nid2ln(pbenid),
1063                    OBJ_nid2sn(encnid));
1064         /* If KDF is PBKDF2 decode parameters */
1065         if (pbenid == NID_id_pbkdf2) {
1066             PBKDF2PARAM *kdf = NULL;
1067             int prfnid;
1068             if (aparamtype == V_ASN1_SEQUENCE)
1069                 kdf = ASN1_item_unpack(aparam, ASN1_ITEM_rptr(PBKDF2PARAM));
1070             if (kdf == NULL) {
1071                 BIO_puts(bio_err, ", <unsupported parameters>");
1072                 goto done;
1073             }
1074
1075             if (kdf->prf == NULL) {
1076                 prfnid = NID_hmacWithSHA1;
1077             } else {
1078                 X509_ALGOR_get0(&aoid, NULL, NULL, kdf->prf);
1079                 prfnid = OBJ_obj2nid(aoid);
1080             }
1081             BIO_printf(bio_err, ", Iteration %ld, PRF %s",
1082                        ASN1_INTEGER_get(kdf->iter), OBJ_nid2sn(prfnid));
1083             PBKDF2PARAM_free(kdf);
1084 #ifndef OPENSSL_NO_SCRYPT
1085         } else if (pbenid == NID_id_scrypt) {
1086             SCRYPT_PARAMS *kdf = NULL;
1087
1088             if (aparamtype == V_ASN1_SEQUENCE)
1089                 kdf = ASN1_item_unpack(aparam, ASN1_ITEM_rptr(SCRYPT_PARAMS));
1090             if (kdf == NULL) {
1091                 BIO_puts(bio_err, ", <unsupported parameters>");
1092                 goto done;
1093             }
1094             BIO_printf(bio_err, ", Salt length: %d, Cost(N): %ld, "
1095                        "Block size(r): %ld, Parallelism(p): %ld",
1096                        ASN1_STRING_length(kdf->salt),
1097                        ASN1_INTEGER_get(kdf->costParameter),
1098                        ASN1_INTEGER_get(kdf->blockSize),
1099                        ASN1_INTEGER_get(kdf->parallelizationParameter));
1100             SCRYPT_PARAMS_free(kdf);
1101 #endif
1102         }
1103         PBE2PARAM_free(pbe2);
1104     } else {
1105         if (aparamtype == V_ASN1_SEQUENCE)
1106             pbe = ASN1_item_unpack(aparam, ASN1_ITEM_rptr(PBEPARAM));
1107         if (pbe == NULL) {
1108             BIO_puts(bio_err, ", <unsupported parameters>");
1109             goto done;
1110         }
1111         BIO_printf(bio_err, ", Iteration %ld", ASN1_INTEGER_get(pbe->iter));
1112         PBEPARAM_free(pbe);
1113     }
1114  done:
1115     BIO_puts(bio_err, "\n");
1116     return 1;
1117 }
1118
1119 /* Load all certificates from a given file */
1120
1121 int cert_load(BIO *in, STACK_OF(X509) *sk)
1122 {
1123     int ret = 0;
1124     X509 *cert;
1125
1126     while ((cert = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
1127         ret = 1;
1128         if (!sk_X509_push(sk, cert))
1129             return 0;
1130     }
1131     if (ret)
1132         ERR_clear_error();
1133     return ret;
1134 }
1135
1136 /* Generalised x509 attribute value print */
1137
1138 void print_attribute(BIO *out, const ASN1_TYPE *av)
1139 {
1140     char *value;
1141
1142     switch (av->type) {
1143     case V_ASN1_BMPSTRING:
1144         value = OPENSSL_uni2asc(av->value.bmpstring->data,
1145                                 av->value.bmpstring->length);
1146         BIO_printf(out, "%s\n", value);
1147         OPENSSL_free(value);
1148         break;
1149
1150     case V_ASN1_UTF8STRING:
1151         BIO_printf(out, "%.*s\n", av->value.utf8string->length,
1152                    av->value.utf8string->data);
1153         break;
1154
1155     case V_ASN1_OCTET_STRING:
1156         hex_prin(out, av->value.octet_string->data,
1157                  av->value.octet_string->length);
1158         BIO_printf(out, "\n");
1159         break;
1160
1161     case V_ASN1_BIT_STRING:
1162         hex_prin(out, av->value.bit_string->data,
1163                  av->value.bit_string->length);
1164         BIO_printf(out, "\n");
1165         break;
1166
1167     default:
1168         BIO_printf(out, "<Unsupported tag %d>\n", av->type);
1169         break;
1170     }
1171 }
1172
1173 /* Generalised attribute print: handle PKCS#8 and bag attributes */
1174
1175 int print_attribs(BIO *out, const STACK_OF(X509_ATTRIBUTE) *attrlst,
1176                   const char *name)
1177 {
1178     X509_ATTRIBUTE *attr;
1179     ASN1_TYPE *av;
1180     int i, j, attr_nid;
1181     if (!attrlst) {
1182         BIO_printf(out, "%s: <No Attributes>\n", name);
1183         return 1;
1184     }
1185     if (!sk_X509_ATTRIBUTE_num(attrlst)) {
1186         BIO_printf(out, "%s: <Empty Attributes>\n", name);
1187         return 1;
1188     }
1189     BIO_printf(out, "%s\n", name);
1190     for (i = 0; i < sk_X509_ATTRIBUTE_num(attrlst); i++) {
1191         ASN1_OBJECT *attr_obj;
1192         attr = sk_X509_ATTRIBUTE_value(attrlst, i);
1193         attr_obj = X509_ATTRIBUTE_get0_object(attr);
1194         attr_nid = OBJ_obj2nid(attr_obj);
1195         BIO_printf(out, "    ");
1196         if (attr_nid == NID_undef) {
1197             i2a_ASN1_OBJECT(out, attr_obj);
1198             BIO_printf(out, ": ");
1199         } else {
1200             BIO_printf(out, "%s: ", OBJ_nid2ln(attr_nid));
1201         }
1202
1203         if (X509_ATTRIBUTE_count(attr)) {
1204             for (j = 0; j < X509_ATTRIBUTE_count(attr); j++)
1205             {
1206                 av = X509_ATTRIBUTE_get0_type(attr, j);
1207                 print_attribute(out, av);
1208             }
1209         } else {
1210             BIO_printf(out, "<No Values>\n");
1211         }
1212     }
1213     return 1;
1214 }
1215
1216 void hex_prin(BIO *out, unsigned char *buf, int len)
1217 {
1218     int i;
1219     for (i = 0; i < len; i++)
1220         BIO_printf(out, "%02X ", buf[i]);
1221 }
1222
1223 static int set_pbe(int *ppbe, const char *str)
1224 {
1225     if (!str)
1226         return 0;
1227     if (strcmp(str, "NONE") == 0) {
1228         *ppbe = -1;
1229         return 1;
1230     }
1231     *ppbe = OBJ_txt2nid(str);
1232     if (*ppbe == NID_undef) {
1233         BIO_printf(bio_err, "Unknown PBE algorithm %s\n", str);
1234         return 0;
1235     }
1236     return 1;
1237 }