release/src/router/openssl/apps/pkeyutl.c

   1 /*
   2  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   3  * 2006.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2006 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 "apps.h"
  60 #include <string.h>
  61 #include <openssl/err.h>
  62 #include <openssl/pem.h>
  63 #include <openssl/evp.h>
  64
  65 #define KEY_PRIVKEY     1
  66 #define KEY_PUBKEY      2
  67 #define KEY_CERT        3
  68
  69 static void usage(void);
  70
  71 #undef PROG
  72
  73 #define PROG pkeyutl_main
  74
  75 static EVP_PKEY_CTX *init_ctx(int *pkeysize,
  76                               char *keyfile, int keyform, int key_type,
  77                               char *passargin, int pkey_op, ENGINE *e,
  78                               int   impl);
  79
  80 static int setup_peer(BIO *err, EVP_PKEY_CTX *ctx, int peerform,
  81                       const char *file, ENGINE* e);
  82
  83 static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
  84                     unsigned char *out, size_t *poutlen,
  85                     unsigned char *in, size_t inlen);
  86
  87 int MAIN(int argc, char **);
  88
  89 int MAIN(int argc, char **argv)
  90 {
  91     BIO *in = NULL, *out = NULL;
  92     char *infile = NULL, *outfile = NULL, *sigfile = NULL;
  93     ENGINE *e = NULL;
  94     int pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
  95     int keyform = FORMAT_PEM, peerform = FORMAT_PEM;
  96     char badarg = 0, rev = 0;
  97     char hexdump = 0, asn1parse = 0;
  98     EVP_PKEY_CTX *ctx = NULL;
  99     char *passargin = NULL;
 100     int keysize = -1;
 101     int engine_impl = 0;
 102
 103     unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
 104     size_t buf_outlen;
 105     int buf_inlen = 0, siglen = -1;
 106
 107     int ret = 1, rv = -1;
 108
 109     argc--;
 110     argv++;
 111
 112     if (!bio_err)
 113         bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 114
 115     if (!load_config(bio_err, NULL))
 116         goto end;
 117     ERR_load_crypto_strings();
 118     OpenSSL_add_all_algorithms();
 119
 120     while (argc >= 1) {
 121         if (!strcmp(*argv, "-in")) {
 122             if (--argc < 1)
 123                 badarg = 1;
 124             else
 125                 infile = *(++argv);
 126         } else if (!strcmp(*argv, "-out")) {
 127             if (--argc < 1)
 128                 badarg = 1;
 129             else
 130                 outfile = *(++argv);
 131         } else if (!strcmp(*argv, "-sigfile")) {
 132             if (--argc < 1)
 133                 badarg = 1;
 134             else
 135                 sigfile = *(++argv);
 136         } else if (!strcmp(*argv, "-inkey")) {
 137             if (--argc < 1)
 138                 badarg = 1;
 139             else {
 140                 ctx = init_ctx(&keysize,
 141                                *(++argv), keyform, key_type,
 142                                passargin, pkey_op, e, engine_impl);
 143                 if (!ctx) {
 144                     BIO_puts(bio_err, "Error initializing context\n");
 145                     ERR_print_errors(bio_err);
 146                     badarg = 1;
 147                 }
 148             }
 149         } else if (!strcmp(*argv, "-peerkey")) {
 150             if (--argc < 1)
 151                 badarg = 1;
 152             else if (!setup_peer(bio_err, ctx, peerform, *(++argv), e))
 153                 badarg = 1;
 154         } else if (!strcmp(*argv, "-passin")) {
 155             if (--argc < 1)
 156                 badarg = 1;
 157             else
 158                 passargin = *(++argv);
 159         } else if (strcmp(*argv, "-peerform") == 0) {
 160             if (--argc < 1)
 161                 badarg = 1;
 162             else
 163                 peerform = str2fmt(*(++argv));
 164         } else if (strcmp(*argv, "-keyform") == 0) {
 165             if (--argc < 1)
 166                 badarg = 1;
 167             else
 168                 keyform = str2fmt(*(++argv));
 169         }
 170 #ifndef OPENSSL_NO_ENGINE
 171         else if (!strcmp(*argv, "-engine")) {
 172             if (--argc < 1)
 173                 badarg = 1;
 174             else
 175                 e = setup_engine(bio_err, *(++argv), 0);
 176         } else if (!strcmp(*argv, "-engine_impl")) {
 177                 engine_impl = 1;
 178         }
 179 #endif
 180         else if (!strcmp(*argv, "-pubin"))
 181             key_type = KEY_PUBKEY;
 182         else if (!strcmp(*argv, "-certin"))
 183             key_type = KEY_CERT;
 184         else if (!strcmp(*argv, "-asn1parse"))
 185             asn1parse = 1;
 186         else if (!strcmp(*argv, "-hexdump"))
 187             hexdump = 1;
 188         else if (!strcmp(*argv, "-sign"))
 189             pkey_op = EVP_PKEY_OP_SIGN;
 190         else if (!strcmp(*argv, "-verify"))
 191             pkey_op = EVP_PKEY_OP_VERIFY;
 192         else if (!strcmp(*argv, "-verifyrecover"))
 193             pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
 194         else if (!strcmp(*argv, "-rev"))
 195             rev = 1;
 196         else if (!strcmp(*argv, "-encrypt"))
 197             pkey_op = EVP_PKEY_OP_ENCRYPT;
 198         else if (!strcmp(*argv, "-decrypt"))
 199             pkey_op = EVP_PKEY_OP_DECRYPT;
 200         else if (!strcmp(*argv, "-derive"))
 201             pkey_op = EVP_PKEY_OP_DERIVE;
 202         else if (strcmp(*argv, "-pkeyopt") == 0) {
 203             if (--argc < 1)
 204                 badarg = 1;
 205             else if (!ctx) {
 206                 BIO_puts(bio_err, "-pkeyopt command before -inkey\n");
 207                 badarg = 1;
 208             } else if (pkey_ctrl_string(ctx, *(++argv)) <= 0) {
 209                 BIO_puts(bio_err, "parameter setting error\n");
 210                 ERR_print_errors(bio_err);
 211                 goto end;
 212             }
 213         } else
 214             badarg = 1;
 215         if (badarg) {
 216             usage();
 217             goto end;
 218         }
 219         argc--;
 220         argv++;
 221     }
 222
 223     if (!ctx) {
 224         usage();
 225         goto end;
 226     }
 227
 228     if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
 229         BIO_puts(bio_err, "Signature file specified for non verify\n");
 230         goto end;
 231     }
 232
 233     if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
 234         BIO_puts(bio_err, "No signature file specified for verify\n");
 235         goto end;
 236     }
 237
 238 /* FIXME: seed PRNG only if needed */
 239     app_RAND_load_file(NULL, bio_err, 0);
 240
 241     if (pkey_op != EVP_PKEY_OP_DERIVE) {
 242         if (infile) {
 243             if (!(in = BIO_new_file(infile, "rb"))) {
 244                 BIO_puts(bio_err, "Error Opening Input File\n");
 245                 ERR_print_errors(bio_err);
 246                 goto end;
 247             }
 248         } else
 249             in = BIO_new_fp(stdin, BIO_NOCLOSE);
 250     }
 251
 252     if (outfile) {
 253         if (!(out = BIO_new_file(outfile, "wb"))) {
 254             BIO_printf(bio_err, "Error Creating Output File\n");
 255             ERR_print_errors(bio_err);
 256             goto end;
 257         }
 258     } else {
 259         out = BIO_new_fp(stdout, BIO_NOCLOSE);
 260 #ifdef OPENSSL_SYS_VMS
 261         {
 262             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 263             out = BIO_push(tmpbio, out);
 264         }
 265 #endif
 266     }
 267
 268     if (sigfile) {
 269         BIO *sigbio = BIO_new_file(sigfile, "rb");
 270         if (!sigbio) {
 271             BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
 272             goto end;
 273         }
 274         siglen = bio_to_mem(&sig, keysize * 10, sigbio);
 275         BIO_free(sigbio);
 276         if (siglen <= 0) {
 277             BIO_printf(bio_err, "Error reading signature data\n");
 278             goto end;
 279         }
 280     }
 281
 282     if (in) {
 283         /* Read the input data */
 284         buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
 285         if (buf_inlen <= 0) {
 286             BIO_printf(bio_err, "Error reading input Data\n");
 287             exit(1);
 288         }
 289         if (rev) {
 290             size_t i;
 291             unsigned char ctmp;
 292             size_t l = (size_t)buf_inlen;
 293             for (i = 0; i < l / 2; i++) {
 294                 ctmp = buf_in[i];
 295                 buf_in[i] = buf_in[l - 1 - i];
 296                 buf_in[l - 1 - i] = ctmp;
 297             }
 298         }
 299     }
 300
 301     if (pkey_op == EVP_PKEY_OP_VERIFY) {
 302         rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
 303                              buf_in, (size_t)buf_inlen);
 304         if (rv == 0)
 305             BIO_puts(out, "Signature Verification Failure\n");
 306         else if (rv == 1)
 307             BIO_puts(out, "Signature Verified Successfully\n");
 308         if (rv >= 0)
 309             goto end;
 310     } else {
 311         rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
 312                       buf_in, (size_t)buf_inlen);
 313         if (rv > 0) {
 314             buf_out = OPENSSL_malloc(buf_outlen);
 315             if (!buf_out)
 316                 rv = -1;
 317             else
 318                 rv = do_keyop(ctx, pkey_op,
 319                               buf_out, (size_t *)&buf_outlen,
 320                               buf_in, (size_t)buf_inlen);
 321         }
 322     }
 323
 324     if (rv <= 0) {
 325         BIO_printf(bio_err, "Public Key operation error\n");
 326         ERR_print_errors(bio_err);
 327         goto end;
 328     }
 329     ret = 0;
 330     if (asn1parse) {
 331         if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
 332             ERR_print_errors(bio_err);
 333     } else if (hexdump)
 334         BIO_dump(out, (char *)buf_out, buf_outlen);
 335     else
 336         BIO_write(out, buf_out, buf_outlen);
 337
 338  end:
 339     if (ctx)
 340         EVP_PKEY_CTX_free(ctx);
 341     BIO_free(in);
 342     BIO_free_all(out);
 343     if (buf_in)
 344         OPENSSL_free(buf_in);
 345     if (buf_out)
 346         OPENSSL_free(buf_out);
 347     if (sig)
 348         OPENSSL_free(sig);
 349     return ret;
 350 }
 351
 352 static void usage()
 353 {
 354     BIO_printf(bio_err, "Usage: pkeyutl [options]\n");
 355     BIO_printf(bio_err, "-in file        input file\n");
 356     BIO_printf(bio_err, "-out file       output file\n");
 357     BIO_printf(bio_err,
 358                "-sigfile file signature file (verify operation only)\n");
 359     BIO_printf(bio_err, "-inkey file     input key\n");
 360     BIO_printf(bio_err, "-keyform arg    private key format - default PEM\n");
 361     BIO_printf(bio_err, "-pubin          input is a public key\n");
 362     BIO_printf(bio_err,
 363                "-certin         input is a certificate carrying a public key\n");
 364     BIO_printf(bio_err, "-pkeyopt X:Y    public key options\n");
 365     BIO_printf(bio_err, "-sign           sign with private key\n");
 366     BIO_printf(bio_err, "-verify         verify with public key\n");
 367     BIO_printf(bio_err,
 368                "-verifyrecover  verify with public key, recover original data\n");
 369     BIO_printf(bio_err, "-encrypt        encrypt with public key\n");
 370     BIO_printf(bio_err, "-decrypt        decrypt with private key\n");
 371     BIO_printf(bio_err, "-derive         derive shared secret\n");
 372     BIO_printf(bio_err, "-hexdump        hex dump output\n");
 373 #ifndef OPENSSL_NO_ENGINE
 374     BIO_printf(bio_err,
 375                "-engine e       use engine e, maybe a hardware device, for loading keys.\n");
 376     BIO_printf(bio_err, "-engine_impl    also use engine given by -engine for crypto operations\n");
 377 #endif
 378     BIO_printf(bio_err, "-passin arg     pass phrase source\n");
 379
 380 }
 381
 382 static EVP_PKEY_CTX *init_ctx(int *pkeysize,
 383                               char *keyfile, int keyform, int key_type,
 384                               char *passargin, int pkey_op, ENGINE *e,
 385                               int   engine_impl)
 386 {
 387     EVP_PKEY *pkey = NULL;
 388     EVP_PKEY_CTX *ctx = NULL;
 389     ENGINE *impl = NULL;
 390     char *passin = NULL;
 391     int rv = -1;
 392     X509 *x;
 393     if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
 394          || (pkey_op == EVP_PKEY_OP_DERIVE))
 395         && (key_type != KEY_PRIVKEY)) {
 396         BIO_printf(bio_err, "A private key is needed for this operation\n");
 397         goto end;
 398     }
 399     if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
 400         BIO_printf(bio_err, "Error getting password\n");
 401         goto end;
 402     }
 403     switch (key_type) {
 404     case KEY_PRIVKEY:
 405         pkey = load_key(bio_err, keyfile, keyform, 0,
 406                         passin, e, "Private Key");
 407         break;
 408
 409     case KEY_PUBKEY:
 410         pkey = load_pubkey(bio_err, keyfile, keyform, 0,
 411                            NULL, e, "Public Key");
 412         break;
 413
 414     case KEY_CERT:
 415         x = load_cert(bio_err, keyfile, keyform, NULL, e, "Certificate");
 416         if (x) {
 417             pkey = X509_get_pubkey(x);
 418             X509_free(x);
 419         }
 420         break;
 421
 422     }
 423
 424     *pkeysize = EVP_PKEY_size(pkey);
 425
 426     if (!pkey)
 427         goto end;
 428
 429 #ifndef OPENSSL_NO_ENGINE
 430     if (engine_impl)
 431         impl = e;
 432 #endif
 433
 434     ctx = EVP_PKEY_CTX_new(pkey, impl);
 435
 436     EVP_PKEY_free(pkey);
 437
 438     if (!ctx)
 439         goto end;
 440
 441     switch (pkey_op) {
 442     case EVP_PKEY_OP_SIGN:
 443         rv = EVP_PKEY_sign_init(ctx);
 444         break;
 445
 446     case EVP_PKEY_OP_VERIFY:
 447         rv = EVP_PKEY_verify_init(ctx);
 448         break;
 449
 450     case EVP_PKEY_OP_VERIFYRECOVER:
 451         rv = EVP_PKEY_verify_recover_init(ctx);
 452         break;
 453
 454     case EVP_PKEY_OP_ENCRYPT:
 455         rv = EVP_PKEY_encrypt_init(ctx);
 456         break;
 457
 458     case EVP_PKEY_OP_DECRYPT:
 459         rv = EVP_PKEY_decrypt_init(ctx);
 460         break;
 461
 462     case EVP_PKEY_OP_DERIVE:
 463         rv = EVP_PKEY_derive_init(ctx);
 464         break;
 465     }
 466
 467     if (rv <= 0) {
 468         EVP_PKEY_CTX_free(ctx);
 469         ctx = NULL;
 470     }
 471
 472  end:
 473
 474     if (passin)
 475         OPENSSL_free(passin);
 476
 477     return ctx;
 478
 479 }
 480
 481 static int setup_peer(BIO *err, EVP_PKEY_CTX *ctx, int peerform,
 482                       const char *file, ENGINE* e)
 483 {
 484     EVP_PKEY *peer = NULL;
 485     ENGINE* engine = NULL;
 486     int ret;
 487     if (!ctx) {
 488         BIO_puts(err, "-peerkey command before -inkey\n");
 489         return 0;
 490     }
 491
 492     if (peerform == FORMAT_ENGINE)
 493       engine = e;
 494
 495     peer = load_pubkey(bio_err, file, peerform, 0, NULL, engine, "Peer Key");
 496
 497     if (!peer) {
 498         BIO_printf(bio_err, "Error reading peer key %s\n", file);
 499         ERR_print_errors(err);
 500         return 0;
 501     }
 502
 503     ret = EVP_PKEY_derive_set_peer(ctx, peer);
 504
 505     EVP_PKEY_free(peer);
 506     if (ret <= 0)
 507         ERR_print_errors(err);
 508     return ret;
 509 }
 510
 511 static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op,
 512                     unsigned char *out, size_t *poutlen,
 513                     unsigned char *in, size_t inlen)
 514 {
 515     int rv = 0;
 516     switch (pkey_op) {
 517     case EVP_PKEY_OP_VERIFYRECOVER:
 518         rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
 519         break;
 520
 521     case EVP_PKEY_OP_SIGN:
 522         rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
 523         break;
 524
 525     case EVP_PKEY_OP_ENCRYPT:
 526         rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
 527         break;
 528
 529     case EVP_PKEY_OP_DECRYPT:
 530         rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
 531         break;
 532
 533     case EVP_PKEY_OP_DERIVE:
 534         rv = EVP_PKEY_derive(ctx, out, poutlen);
 535         break;
 536
 537     }
 538     return rv;
 539 }