crypto/libressl/apps/openssl/pkcs8.c

   1 /* $OpenBSD: pkcs8.c,v 1.8 2015/10/17 07:51:10 semarie Exp $ */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project 1999-2004.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include <stdio.h>
  60 #include <string.h>
  61
  62 #include "apps.h"
  63 #include "progs.h"
  64
  65 #include <openssl/err.h>
  66 #include <openssl/evp.h>
  67 #include <openssl/pem.h>
  68 #include <openssl/pkcs12.h>
  69
  70 static struct {
  71         const EVP_CIPHER *cipher;
  72         char *infile;
  73         int informat;
  74         int iter;
  75         int nocrypt;
  76         char *outfile;
  77         int outformat;
  78         int p8_broken;
  79         char *passargin;
  80         char *passargout;
  81         int pbe_nid;
  82         int topk8;
  83 } pkcs8_config;
  84
  85 static int
  86 pkcs8_opt_v1(char *arg)
  87 {
  88         if ((pkcs8_config.pbe_nid = OBJ_txt2nid(arg)) == NID_undef) {
  89                 fprintf(stderr, "Unknown PBE algorithm '%s'\n", arg);
  90                 return (1);
  91         }
  92
  93         return (0);
  94 }
  95
  96 static int
  97 pkcs8_opt_v2(char *arg)
  98 {
  99         if ((pkcs8_config.cipher = EVP_get_cipherbyname(arg)) == NULL) {
 100                 fprintf(stderr, "Unknown cipher '%s'\n", arg);
 101                 return (1);
 102         }
 103
 104         return (0);
 105 }
 106
 107 static struct option pkcs8_options[] = {
 108         {
 109                 .name = "embed",
 110                 .desc = "Generate DSA keys in a broken format",
 111                 .type = OPTION_VALUE,
 112                 .value = PKCS8_EMBEDDED_PARAM,
 113                 .opt.value = &pkcs8_config.p8_broken,
 114         },
 115         {
 116                 .name = "in",
 117                 .argname = "file",
 118                 .desc = "Input file (default stdin)",
 119                 .type = OPTION_ARG,
 120                 .opt.arg = &pkcs8_config.infile,
 121         },
 122         {
 123                 .name = "inform",
 124                 .argname = "format",
 125                 .desc = "Input format (DER or PEM (default))",
 126                 .type = OPTION_ARG_FORMAT,
 127                 .opt.value = &pkcs8_config.informat,
 128         },
 129         {
 130                 .name = "nocrypt",
 131                 .desc = "Use or expect unencrypted private key",
 132                 .type = OPTION_FLAG,
 133                 .opt.flag = &pkcs8_config.nocrypt,
 134         },
 135         {
 136                 .name = "noiter",
 137                 .desc = "Use 1 as iteration count",
 138                 .type = OPTION_VALUE,
 139                 .value = 1,
 140                 .opt.value = &pkcs8_config.iter,
 141         },
 142         {
 143                 .name = "nooct",
 144                 .desc = "Generate RSA keys in a broken format (no octet)",
 145                 .type = OPTION_VALUE,
 146                 .value = PKCS8_NO_OCTET,
 147                 .opt.value = &pkcs8_config.p8_broken,
 148         },
 149         {
 150                 .name = "nsdb",
 151                 .desc = "Generate DSA keys in the broken Netscape DB format",
 152                 .type = OPTION_VALUE,
 153                 .value = PKCS8_NS_DB,
 154                 .opt.value = &pkcs8_config.p8_broken,
 155         },
 156         {
 157                 .name = "out",
 158                 .argname = "file",
 159                 .desc = "Output file (default stdout)",
 160                 .type = OPTION_ARG,
 161                 .opt.arg = &pkcs8_config.outfile,
 162         },
 163         {
 164                 .name = "outform",
 165                 .argname = "format",
 166                 .desc = "Output format (DER or PEM (default))",
 167                 .type = OPTION_ARG_FORMAT,
 168                 .opt.value = &pkcs8_config.outformat,
 169         },
 170         {
 171                 .name = "passin",
 172                 .argname = "source",
 173                 .desc = "Input file passphrase source",
 174                 .type = OPTION_ARG,
 175                 .opt.arg = &pkcs8_config.passargin,
 176         },
 177         {
 178                 .name = "passout",
 179                 .argname = "source",
 180                 .desc = "Output file passphrase source",
 181                 .type = OPTION_ARG,
 182                 .opt.arg = &pkcs8_config.passargout,
 183         },
 184         {
 185                 .name = "topk8",
 186                 .desc = "Read traditional format key and write PKCS#8 format"
 187                     " key",
 188                 .type = OPTION_FLAG,
 189                 .opt.flag = &pkcs8_config.topk8,
 190         },
 191         {
 192                 .name = "v1",
 193                 .argname = "algorithm",
 194                 .desc = "Use PKCS#5 v1.5 or PKCS#12 with given algorithm",
 195                 .type = OPTION_ARG_FUNC,
 196                 .opt.argfunc = pkcs8_opt_v1,
 197         },
 198         {
 199                 .name = "v2",
 200                 .argname = "cipher",
 201                 .desc = "Use PKCS#5 v2.0 with given cipher",
 202                 .type = OPTION_ARG_FUNC,
 203                 .opt.argfunc = pkcs8_opt_v2,
 204         },
 205         { NULL },
 206 };
 207
 208 static void
 209 pkcs8_usage()
 210 {
 211         fprintf(stderr, "usage: pkcs8 [-embed] [-in file] "
 212             "[-inform fmt] [-nocrypt]\n"
 213             "    [-noiter] [-nooct] [-nsdb] [-out file] [-outform fmt] "
 214             "[-passin src]\n"
 215             "    [-passout src] [-topk8] [-v1 alg] [-v2 alg]\n\n");
 216         options_usage(pkcs8_options);
 217 }
 218
 219 int
 220 pkcs8_main(int argc, char **argv)
 221 {
 222         BIO *in = NULL, *out = NULL;
 223         X509_SIG *p8 = NULL;
 224         PKCS8_PRIV_KEY_INFO *p8inf = NULL;
 225         EVP_PKEY *pkey = NULL;
 226         char pass[50], *passin = NULL, *passout = NULL, *p8pass = NULL;
 227         int ret = 1;
 228
 229         if (single_execution) {
 230                 if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
 231                         perror("pledge");
 232                         exit(1);
 233                 }
 234         }
 235
 236         memset(&pkcs8_config, 0, sizeof(pkcs8_config));
 237
 238         pkcs8_config.iter = PKCS12_DEFAULT_ITER;
 239         pkcs8_config.informat = FORMAT_PEM;
 240         pkcs8_config.outformat = FORMAT_PEM;
 241         pkcs8_config.p8_broken = PKCS8_OK;
 242         pkcs8_config.pbe_nid = -1;
 243
 244         if (options_parse(argc, argv, pkcs8_options, NULL, NULL) != 0) {
 245                 pkcs8_usage();
 246                 return (1);
 247         }
 248
 249         if (!app_passwd(bio_err, pkcs8_config.passargin,
 250             pkcs8_config.passargout, &passin, &passout)) {
 251                 BIO_printf(bio_err, "Error getting passwords\n");
 252                 goto end;
 253         }
 254         if ((pkcs8_config.pbe_nid == -1) && !pkcs8_config.cipher)
 255                 pkcs8_config.pbe_nid = NID_pbeWithMD5AndDES_CBC;
 256
 257         if (pkcs8_config.infile) {
 258                 if (!(in = BIO_new_file(pkcs8_config.infile, "rb"))) {
 259                         BIO_printf(bio_err,
 260                             "Can't open input file '%s'\n",
 261                             pkcs8_config.infile);
 262                         goto end;
 263                 }
 264         } else
 265                 in = BIO_new_fp(stdin, BIO_NOCLOSE);
 266
 267         if (pkcs8_config.outfile) {
 268                 if (!(out = BIO_new_file(pkcs8_config.outfile, "wb"))) {
 269                         BIO_printf(bio_err, "Can't open output file '%s'\n",
 270                             pkcs8_config.outfile);
 271                         goto end;
 272                 }
 273         } else {
 274                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 275         }
 276         if (pkcs8_config.topk8) {
 277                 pkey = load_key(bio_err, pkcs8_config.infile,
 278                     pkcs8_config.informat, 1, passin, "key");
 279                 if (!pkey)
 280                         goto end;
 281                 if (!(p8inf = EVP_PKEY2PKCS8_broken(pkey,
 282                     pkcs8_config.p8_broken))) {
 283                         BIO_printf(bio_err, "Error converting key\n");
 284                         ERR_print_errors(bio_err);
 285                         goto end;
 286                 }
 287                 if (pkcs8_config.nocrypt) {
 288                         if (pkcs8_config.outformat == FORMAT_PEM)
 289                                 PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf);
 290                         else if (pkcs8_config.outformat == FORMAT_ASN1)
 291                                 i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);
 292                         else {
 293                                 BIO_printf(bio_err,
 294                                     "Bad format specified for key\n");
 295                                 goto end;
 296                         }
 297                 } else {
 298                         if (passout)
 299                                 p8pass = passout;
 300                         else {
 301                                 p8pass = pass;
 302                                 if (EVP_read_pw_string(pass, sizeof pass,
 303                                     "Enter Encryption Password:", 1))
 304                                         goto end;
 305                         }
 306                         if (!(p8 = PKCS8_encrypt(pkcs8_config.pbe_nid,
 307                             pkcs8_config.cipher, p8pass, strlen(p8pass),
 308                             NULL, 0, pkcs8_config.iter, p8inf))) {
 309                                 BIO_printf(bio_err, "Error encrypting key\n");
 310                                 ERR_print_errors(bio_err);
 311                                 goto end;
 312                         }
 313                         if (pkcs8_config.outformat == FORMAT_PEM)
 314                                 PEM_write_bio_PKCS8(out, p8);
 315                         else if (pkcs8_config.outformat == FORMAT_ASN1)
 316                                 i2d_PKCS8_bio(out, p8);
 317                         else {
 318                                 BIO_printf(bio_err,
 319                                     "Bad format specified for key\n");
 320                                 goto end;
 321                         }
 322                 }
 323
 324                 ret = 0;
 325                 goto end;
 326         }
 327         if (pkcs8_config.nocrypt) {
 328                 if (pkcs8_config.informat == FORMAT_PEM)
 329                         p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in, NULL,
 330                             NULL, NULL);
 331                 else if (pkcs8_config.informat == FORMAT_ASN1)
 332                         p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL);
 333                 else {
 334                         BIO_printf(bio_err, "Bad format specified for key\n");
 335                         goto end;
 336                 }
 337         } else {
 338                 if (pkcs8_config.informat == FORMAT_PEM)
 339                         p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL);
 340                 else if (pkcs8_config.informat == FORMAT_ASN1)
 341                         p8 = d2i_PKCS8_bio(in, NULL);
 342                 else {
 343                         BIO_printf(bio_err, "Bad format specified for key\n");
 344                         goto end;
 345                 }
 346
 347                 if (!p8) {
 348                         BIO_printf(bio_err, "Error reading key\n");
 349                         ERR_print_errors(bio_err);
 350                         goto end;
 351                 }
 352                 if (passin)
 353                         p8pass = passin;
 354                 else {
 355                         p8pass = pass;
 356                         EVP_read_pw_string(pass, sizeof pass,
 357                             "Enter Password:", 0);
 358                 }
 359                 p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass));
 360         }
 361
 362         if (!p8inf) {
 363                 BIO_printf(bio_err, "Error decrypting key\n");
 364                 ERR_print_errors(bio_err);
 365                 goto end;
 366         }
 367         if (!(pkey = EVP_PKCS82PKEY(p8inf))) {
 368                 BIO_printf(bio_err, "Error converting key\n");
 369                 ERR_print_errors(bio_err);
 370                 goto end;
 371         }
 372         if (p8inf->broken) {
 373                 BIO_printf(bio_err, "Warning: broken key encoding: ");
 374                 switch (p8inf->broken) {
 375                 case PKCS8_NO_OCTET:
 376                         BIO_printf(bio_err, "No Octet String in PrivateKey\n");
 377                         break;
 378
 379                 case PKCS8_EMBEDDED_PARAM:
 380                         BIO_printf(bio_err,
 381                             "DSA parameters included in PrivateKey\n");
 382                         break;
 383
 384                 case PKCS8_NS_DB:
 385                         BIO_printf(bio_err,
 386                             "DSA public key include in PrivateKey\n");
 387                         break;
 388
 389                 case PKCS8_NEG_PRIVKEY:
 390                         BIO_printf(bio_err, "DSA private key value is negative\n");
 391                         break;
 392
 393                 default:
 394                         BIO_printf(bio_err, "Unknown broken type\n");
 395                         break;
 396                 }
 397         }
 398         if (pkcs8_config.outformat == FORMAT_PEM)
 399                 PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL,
 400                     passout);
 401         else if (pkcs8_config.outformat == FORMAT_ASN1)
 402                 i2d_PrivateKey_bio(out, pkey);
 403         else {
 404                 BIO_printf(bio_err, "Bad format specified for key\n");
 405                 goto end;
 406         }
 407         ret = 0;
 408
 409 end:
 410         X509_SIG_free(p8);
 411         PKCS8_PRIV_KEY_INFO_free(p8inf);
 412         EVP_PKEY_free(pkey);
 413         BIO_free_all(out);
 414         BIO_free(in);
 415         free(passin);
 416         free(passout);
 417
 418         return ret;
 419 }