apps/pkeyutl.c

   1 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   2  * project 2006.
   3  */
   4 /* ====================================================================
   5  * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  *
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the
  17  *    distribution.
  18  *
  19  * 3. All advertising materials mentioning features or use of this
  20  *    software must display the following acknowledgment:
  21  *    "This product includes software developed by the OpenSSL Project
  22  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  23  *
  24  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  25  *    endorse or promote products derived from this software without
  26  *    prior written permission. For written permission, please contact
  27  *    licensing@OpenSSL.org.
  28  *
  29  * 5. Products derived from this software may not be called "OpenSSL"
  30  *    nor may "OpenSSL" appear in their names without prior written
  31  *    permission of the OpenSSL Project.
  32  *
  33  * 6. Redistributions of any form whatsoever must retain the following
  34  *    acknowledgment:
  35  *    "This product includes software developed by the OpenSSL Project
  36  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  37  *
  38  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  39  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  40  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  41  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  42  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  43  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  44  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  45  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  46  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  47  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  48  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  49  * OF THE POSSIBILITY OF SUCH DAMAGE.
  50  * ====================================================================
  51  *
  52  * This product includes cryptographic software written by Eric Young
  53  * (eay@cryptsoft.com).  This product includes software written by Tim
  54  * Hudson (tjh@cryptsoft.com).
  55  *
  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, char *engine);
  78
  79 int MAIN(int argc, char **);
  80
  81 int MAIN(int argc, char **argv)
  82 {
  83         BIO *in = NULL, *out = NULL;
  84         char *infile = NULL, *outfile = NULL, *sigfile = NULL;
  85         char *engine = NULL;
  86         int pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
  87         int keyform = FORMAT_PEM;
  88         char badarg = 0, rev = 0;
  89         char hexdump = 0, asn1parse = 0;
  90         EVP_PKEY_CTX *ctx = NULL;
  91         char *passargin = NULL;
  92         int keysize = -1;
  93
  94         unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
  95         int buf_inlen, buf_outlen, siglen = -1;
  96
  97         int ret = 1, rv = -1;
  98
  99         argc--;
 100         argv++;
 101
 102         if(!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 103
 104         if (!load_config(bio_err, NULL))
 105                 goto end;
 106         ERR_load_crypto_strings();
 107         OpenSSL_add_all_algorithms();
 108
 109         while(argc >= 1)
 110                 {
 111                 if (!strcmp(*argv,"-in"))
 112                         {
 113                         if (--argc < 1) badarg = 1;
 114                         infile= *(++argv);
 115                         }
 116                 else if (!strcmp(*argv,"-out"))
 117                         {
 118                         if (--argc < 1) badarg = 1;
 119                         outfile= *(++argv);
 120                         }
 121                 else if (!strcmp(*argv,"-sigfile"))
 122                         {
 123                         if (--argc < 1) badarg = 1;
 124                         sigfile= *(++argv);
 125                         }
 126                 else if(!strcmp(*argv, "-inkey"))
 127                         {
 128                         if (--argc < 1)
 129                                 badarg = 1;
 130                         else
 131                                 {
 132                                 ctx = init_ctx(&keysize,
 133                                                 *(++argv), keyform, key_type,
 134                                                 passargin, pkey_op, engine);
 135                                 if (!ctx)
 136                                         {
 137                                         BIO_puts(bio_err,
 138                                                 "Error initializing context\n");
 139                                         ERR_print_errors(bio_err);
 140                                         badarg = 1;
 141                                         }
 142                                 }
 143                         }
 144                 else if (!strcmp(*argv,"-passin"))
 145                         {
 146                         if (--argc < 1) badarg = 1;
 147                         passargin= *(++argv);
 148                         }
 149                 else if (strcmp(*argv,"-keyform") == 0)
 150                         {
 151                         if (--argc < 1) badarg = 1;
 152                         keyform=str2fmt(*(++argv));
 153                         }
 154 #ifndef OPENSSL_NO_ENGINE
 155                 else if(!strcmp(*argv, "-engine"))
 156                         {
 157                         if (--argc < 1)
 158                                 badarg = 1;
 159                         else
 160                                 engine = *(++argv);
 161                         }
 162 #endif
 163                 else if(!strcmp(*argv, "-pubin"))
 164                         key_type = KEY_PUBKEY;
 165                 else if(!strcmp(*argv, "-certin"))
 166                         key_type = KEY_CERT;
 167                 else if(!strcmp(*argv, "-asn1parse"))
 168                         asn1parse = 1;
 169                 else if(!strcmp(*argv, "-hexdump"))
 170                         hexdump = 1;
 171                 else if(!strcmp(*argv, "-sign"))
 172                         pkey_op = EVP_PKEY_OP_SIGN;
 173                 else if(!strcmp(*argv, "-verify"))
 174                         pkey_op = EVP_PKEY_OP_VERIFY;
 175                 else if(!strcmp(*argv, "-verifyrecover"))
 176                         pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
 177                 else if(!strcmp(*argv, "-rev"))
 178                         rev = 1;
 179                 else if(!strcmp(*argv, "-encrypt"))
 180                         pkey_op = EVP_PKEY_OP_ENCRYPT;
 181                 else if(!strcmp(*argv, "-decrypt"))
 182                         pkey_op = EVP_PKEY_OP_DECRYPT;
 183                 else if (strcmp(*argv,"-pkeyopt") == 0)
 184                         {
 185                         if (--argc < 1)
 186                                 badarg = 1;
 187                         if (!ctx)
 188                                 {
 189                                 BIO_puts(bio_err,
 190                                         "-param command before -inkey\n");
 191                                 badarg = 1;
 192                                 }
 193                         else if (pkey_ctrl_string(ctx, *(++argv)) <= 0)
 194                                 {
 195                                 BIO_puts(bio_err, "parameter setting error\n");
 196                                 ERR_print_errors(bio_err);
 197                                 goto end;
 198                                 }
 199                         }
 200                 else badarg = 1;
 201                 if(badarg)
 202                         {
 203                         usage();
 204                         goto end;
 205                         }
 206                 argc--;
 207                 argv++;
 208                 }
 209
 210         if (!ctx)
 211                 {
 212                 usage();
 213                 goto end;
 214                 }
 215
 216         if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY))
 217                 {
 218                 BIO_puts(bio_err, "Signature file specified for non verify\n");
 219                 goto end;
 220                 }
 221
 222         if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY))
 223                 {
 224                 BIO_puts(bio_err, "No signature file specified for verify\n");
 225                 goto end;
 226                 }
 227
 228 /* FIXME: seed PRNG only if needed */
 229         app_RAND_load_file(NULL, bio_err, 0);
 230
 231         if(infile)
 232                 {
 233                 if(!(in = BIO_new_file(infile, "rb")))
 234                         {
 235                         BIO_printf(bio_err, "Error Reading Input File\n");
 236                         ERR_print_errors(bio_err);
 237                         goto end;
 238                         }
 239                 }
 240         else
 241                 in = BIO_new_fp(stdin, BIO_NOCLOSE);
 242
 243         if(outfile)
 244                 {
 245                 if(!(out = BIO_new_file(outfile, "wb")))
 246                         {
 247                         BIO_printf(bio_err, "Error Creating Output File\n");
 248                         ERR_print_errors(bio_err);
 249                         goto end;
 250                         }
 251                 }
 252         else
 253                 {
 254                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 255 #ifdef OPENSSL_SYS_VMS
 256                 {
 257                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 258                     out = BIO_push(tmpbio, out);
 259                 }
 260 #endif
 261         }
 262
 263         if (sigfile)
 264                 {
 265                 BIO *sigbio = BIO_new_file(sigfile, "rb");
 266                 if (!sigbio)
 267                         {
 268                         BIO_printf(bio_err, "Can't open signature file %s\n",
 269                                                                 sigfile);
 270                         goto end;
 271                         }
 272                 siglen = bio_to_mem(&sig, keysize * 10, sigbio);
 273                 BIO_free(sigbio);
 274                 if (siglen <= 0)
 275                         {
 276                         BIO_printf(bio_err, "Error reading signature data\n");
 277                         goto end;
 278                         }
 279                 }
 280
 281         buf_out = OPENSSL_malloc(keysize);
 282
 283         /* Read the input data */
 284         buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
 285         if(buf_inlen <= 0)
 286                 {
 287                 BIO_printf(bio_err, "Error reading input Data\n");
 288                 exit(1);
 289                 }
 290         if(rev)
 291                 {
 292                 int i;
 293                 unsigned char ctmp;
 294                 for(i = 0; i < buf_inlen/2; i++)
 295                         {
 296                         ctmp = buf_in[i];
 297                         buf_in[i] = buf_in[buf_inlen - 1 - i];
 298                         buf_in[buf_inlen - 1 - i] = ctmp;
 299                         }
 300                 }
 301         switch(pkey_op)
 302                 {
 303                 case EVP_PKEY_OP_VERIFYRECOVER:
 304                 rv  = EVP_PKEY_verify_recover(ctx, buf_out, &buf_outlen,
 305                                                         buf_in, buf_inlen);
 306                 break;
 307
 308                 case EVP_PKEY_OP_SIGN:
 309                 rv  = EVP_PKEY_sign(ctx, buf_out, &buf_outlen,
 310                                                         buf_in, buf_inlen);
 311                 break;
 312
 313                 case EVP_PKEY_OP_ENCRYPT:
 314                 rv  = EVP_PKEY_encrypt(ctx, buf_out, &buf_outlen,
 315                                                         buf_in, buf_inlen);
 316                 break;
 317
 318                 case EVP_PKEY_OP_DECRYPT:
 319                 rv  = EVP_PKEY_decrypt(ctx, buf_out, &buf_outlen,
 320                                                         buf_in, buf_inlen);
 321                 break;
 322
 323                 case EVP_PKEY_OP_VERIFY:
 324                 rv  = EVP_PKEY_verify(ctx, sig, siglen, buf_in, buf_inlen);
 325                 if (rv == 0)
 326                         BIO_puts(out, "Signature Verification Failure\n");
 327                 else if (rv == 1)
 328                         BIO_puts(out, "Signature Verified Successfully\n");
 329                 if (rv >= 0)
 330                         goto end;
 331                 break;
 332
 333                 }
 334
 335         if(rv <= 0)
 336                 {
 337                 BIO_printf(bio_err, "Public Key operation error\n");
 338                 ERR_print_errors(bio_err);
 339                 goto end;
 340                 }
 341         ret = 0;
 342         if(asn1parse)
 343                 {
 344                 if(!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
 345                         ERR_print_errors(bio_err);
 346                 }
 347         else if(hexdump)
 348                 BIO_dump(out, (char *)buf_out, buf_outlen);
 349         else
 350                 BIO_write(out, buf_out, buf_outlen);
 351
 352         end:
 353         if (ctx)
 354                 EVP_PKEY_CTX_free(ctx);
 355         BIO_free(in);
 356         BIO_free_all(out);
 357         if (buf_in)
 358                 OPENSSL_free(buf_in);
 359         if (buf_out)
 360                 OPENSSL_free(buf_out);
 361         if (sig)
 362                 OPENSSL_free(sig);
 363         return ret;
 364 }
 365
 366 static void usage()
 367 {
 368         BIO_printf(bio_err, "Usage: pkeyutl [options]\n");
 369         BIO_printf(bio_err, "-in file        input file\n");
 370         BIO_printf(bio_err, "-out file       output file\n");
 371         BIO_printf(bio_err, "-inkey file     input key\n");
 372         BIO_printf(bio_err, "-keyform arg    private key format - default PEM\n");
 373         BIO_printf(bio_err, "-pubin          input is an RSA public\n");
 374         BIO_printf(bio_err, "-certin         input is a certificate carrying an RSA public key\n");
 375         BIO_printf(bio_err, "-ctrl X:Y       control parameters\n");
 376         BIO_printf(bio_err, "-sign           sign with private key\n");
 377         BIO_printf(bio_err, "-verify         verify with public key\n");
 378         BIO_printf(bio_err, "-encrypt        encrypt with public key\n");
 379         BIO_printf(bio_err, "-decrypt        decrypt with private key\n");
 380         BIO_printf(bio_err, "-hexdump        hex dump output\n");
 381 #ifndef OPENSSL_NO_ENGINE
 382         BIO_printf(bio_err, "-engine e       use engine e, possibly a hardware device.\n");
 383         BIO_printf(bio_err, "-passin arg     pass phrase source\n");
 384 #endif
 385
 386 }
 387
 388 static EVP_PKEY_CTX *init_ctx(int *pkeysize,
 389                                 char *keyfile, int keyform, int key_type,
 390                                 char *passargin, int pkey_op, char *engine)
 391         {
 392         ENGINE *e = NULL;
 393         EVP_PKEY *pkey = NULL;
 394         EVP_PKEY_CTX *ctx = NULL;
 395         char *passin = NULL;
 396         int rv = -1;
 397         X509 *x;
 398         if(((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT))
 399                 && (key_type != KEY_PRIVKEY))
 400                 {
 401                 BIO_printf(bio_err, "A private key is needed for this operation\n");
 402                 goto end;
 403                 }
 404         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL))
 405                 {
 406                 BIO_printf(bio_err, "Error getting password\n");
 407                 goto end;
 408                 }
 409         switch(key_type)
 410                 {
 411                 case KEY_PRIVKEY:
 412                 pkey = load_key(bio_err, keyfile, keyform, 0,
 413                         passin, e, "Private Key");
 414                 break;
 415
 416                 case KEY_PUBKEY:
 417                 pkey = load_pubkey(bio_err, keyfile, keyform, 0,
 418                         NULL, e, "Public Key");
 419                 break;
 420
 421                 case KEY_CERT:
 422                 x = load_cert(bio_err, keyfile, keyform,
 423                         NULL, e, "Certificate");
 424                 if(x)
 425                         {
 426                         pkey = X509_get_pubkey(x);
 427                         X509_free(x);
 428                         }
 429                 break;
 430
 431                 }
 432
 433         *pkeysize = EVP_PKEY_size(pkey);
 434
 435         if (!pkey)
 436                 goto end;
 437
 438         ctx = EVP_PKEY_CTX_new(pkey, NULL);
 439
 440         EVP_PKEY_free(pkey);
 441
 442         if (!ctx)
 443                 goto end;
 444
 445         switch(pkey_op)
 446                 {
 447                 case EVP_PKEY_OP_SIGN:
 448                 rv = EVP_PKEY_sign_init(ctx);
 449                 break;
 450
 451                 case EVP_PKEY_OP_VERIFY:
 452                 rv = EVP_PKEY_verify_init(ctx);
 453                 break;
 454
 455                 case EVP_PKEY_OP_VERIFYRECOVER:
 456                 rv = EVP_PKEY_verify_recover_init(ctx);
 457                 break;
 458
 459                 case EVP_PKEY_OP_ENCRYPT:
 460                 rv = EVP_PKEY_encrypt_init(ctx);
 461                 break;
 462
 463                 case EVP_PKEY_OP_DECRYPT:
 464                 rv = EVP_PKEY_decrypt_init(ctx);
 465                 break;
 466                 }
 467
 468         if (rv <= 0)
 469                 {
 470                 EVP_PKEY_CTX_free(ctx);
 471                 ctx = NULL;
 472                 }
 473
 474         end:
 475
 476         if (passin)
 477                 OPENSSL_free(passin);
 478
 479         return ctx;
 480
 481
 482         }
 483