apps/spkac.c

   1 /* apps/spkac.c */
   2
   3 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   4  * project 1999. Based on an original idea by Massimiliano Pala
   5  * (madwolf@openca.org).
   6  */
   7 /* ====================================================================
   8  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  *
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  *
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in
  19  *    the documentation and/or other materials provided with the
  20  *    distribution.
  21  *
  22  * 3. All advertising materials mentioning features or use of this
  23  *    software must display the following acknowledgment:
  24  *    "This product includes software developed by the OpenSSL Project
  25  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  26  *
  27  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  28  *    endorse or promote products derived from this software without
  29  *    prior written permission. For written permission, please contact
  30  *    licensing@OpenSSL.org.
  31  *
  32  * 5. Products derived from this software may not be called "OpenSSL"
  33  *    nor may "OpenSSL" appear in their names without prior written
  34  *    permission of the OpenSSL Project.
  35  *
  36  * 6. Redistributions of any form whatsoever must retain the following
  37  *    acknowledgment:
  38  *    "This product includes software developed by the OpenSSL Project
  39  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  42  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  44  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  45  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  46  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  47  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  48  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  49  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  50  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  51  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  52  * OF THE POSSIBILITY OF SUCH DAMAGE.
  53  * ====================================================================
  54  *
  55  * This product includes cryptographic software written by Eric Young
  56  * (eay@cryptsoft.com).  This product includes software written by Tim
  57  * Hudson (tjh@cryptsoft.com).
  58  *
  59  */
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include <time.h>
  64 #include "apps.h"
  65 #include <openssl/bio.h>
  66 #include <openssl/conf.h>
  67 #include <openssl/err.h>
  68 #include <openssl/evp.h>
  69 #include <openssl/lhash.h>
  70 #include <openssl/x509.h>
  71 #include <openssl/pem.h>
  72
  73 #undef PROG
  74 #define PROG    spkac_main
  75
  76 /* -in arg      - input file - default stdin
  77  * -out arg     - output file - default stdout
  78  */
  79
  80 int MAIN(int, char **);
  81
  82 int MAIN(int argc, char **argv)
  83         {
  84         ENGINE *e = NULL;
  85         int i,badops=0, ret = 1;
  86         BIO *in = NULL,*out = NULL;
  87         int verify=0,noout=0,pubkey=0;
  88         char *infile = NULL,*outfile = NULL,*prog;
  89         char *passargin = NULL, *passin = NULL;
  90         char *spkac = "SPKAC", *spksect = "default", *spkstr = NULL;
  91         char *challenge = NULL, *keyfile = NULL;
  92         CONF *conf = NULL;
  93         NETSCAPE_SPKI *spki = NULL;
  94         EVP_PKEY *pkey = NULL;
  95         char *engine=NULL;
  96
  97         apps_startup();
  98
  99         if (!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 100
 101         if (!load_config(bio_err, NULL))
 102                 goto end;
 103
 104         prog=argv[0];
 105         argc--;
 106         argv++;
 107         while (argc >= 1)
 108                 {
 109                 if (strcmp(*argv,"-in") == 0)
 110                         {
 111                         if (--argc < 1) goto bad;
 112                         infile= *(++argv);
 113                         }
 114                 else if (strcmp(*argv,"-out") == 0)
 115                         {
 116                         if (--argc < 1) goto bad;
 117                         outfile= *(++argv);
 118                         }
 119                 else if (strcmp(*argv,"-passin") == 0)
 120                         {
 121                         if (--argc < 1) goto bad;
 122                         passargin= *(++argv);
 123                         }
 124                 else if (strcmp(*argv,"-key") == 0)
 125                         {
 126                         if (--argc < 1) goto bad;
 127                         keyfile= *(++argv);
 128                         }
 129                 else if (strcmp(*argv,"-challenge") == 0)
 130                         {
 131                         if (--argc < 1) goto bad;
 132                         challenge= *(++argv);
 133                         }
 134                 else if (strcmp(*argv,"-spkac") == 0)
 135                         {
 136                         if (--argc < 1) goto bad;
 137                         spkac= *(++argv);
 138                         }
 139                 else if (strcmp(*argv,"-spksect") == 0)
 140                         {
 141                         if (--argc < 1) goto bad;
 142                         spksect= *(++argv);
 143                         }
 144                 else if (strcmp(*argv,"-engine") == 0)
 145                         {
 146                         if (--argc < 1) goto bad;
 147                         engine= *(++argv);
 148                         }
 149                 else if (strcmp(*argv,"-noout") == 0)
 150                         noout=1;
 151                 else if (strcmp(*argv,"-pubkey") == 0)
 152                         pubkey=1;
 153                 else if (strcmp(*argv,"-verify") == 0)
 154                         verify=1;
 155                 else badops = 1;
 156                 argc--;
 157                 argv++;
 158                 }
 159
 160         if (badops)
 161                 {
 162 bad:
 163                 BIO_printf(bio_err,"%s [options]\n",prog);
 164                 BIO_printf(bio_err,"where options are\n");
 165                 BIO_printf(bio_err," -in arg        input file\n");
 166                 BIO_printf(bio_err," -out arg       output file\n");
 167                 BIO_printf(bio_err," -key arg       create SPKAC using private key\n");
 168                 BIO_printf(bio_err," -passin arg    input file pass phrase source\n");
 169                 BIO_printf(bio_err," -challenge arg challenge string\n");
 170                 BIO_printf(bio_err," -spkac arg     alternative SPKAC name\n");
 171                 BIO_printf(bio_err," -noout         don't print SPKAC\n");
 172                 BIO_printf(bio_err," -pubkey        output public key\n");
 173                 BIO_printf(bio_err," -verify        verify SPKAC signature\n");
 174                 BIO_printf(bio_err," -engine e      use engine e, possibly a hardware device.\n");
 175                 goto end;
 176                 }
 177
 178         ERR_load_crypto_strings();
 179         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
 180                 BIO_printf(bio_err, "Error getting password\n");
 181                 goto end;
 182         }
 183
 184         e = setup_engine(bio_err, engine, 0);
 185
 186         if(keyfile) {
 187                 pkey = load_key(bio_err,
 188                                 strcmp(keyfile, "-") ? keyfile : NULL,
 189                                 FORMAT_PEM, passin, e, "private key");
 190                 if(!pkey) {
 191                         goto end;
 192                 }
 193                 spki = NETSCAPE_SPKI_new();
 194                 if(challenge) ASN1_STRING_set(spki->spkac->challenge,
 195                                                  challenge, strlen(challenge));
 196                 NETSCAPE_SPKI_set_pubkey(spki, pkey);
 197                 NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
 198                 spkstr = NETSCAPE_SPKI_b64_encode(spki);
 199
 200                 if (outfile) out = BIO_new_file(outfile, "w");
 201                 else {
 202                         out = BIO_new_fp(stdout, BIO_NOCLOSE);
 203 #ifdef OPENSSL_SYS_VMS
 204                         {
 205                             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 206                             out = BIO_push(tmpbio, out);
 207                         }
 208 #endif
 209                 }
 210
 211                 if(!out) {
 212                         BIO_printf(bio_err, "Error opening output file\n");
 213                         ERR_print_errors(bio_err);
 214                         goto end;
 215                 }
 216                 BIO_printf(out, "SPKAC=%s\n", spkstr);
 217                 OPENSSL_free(spkstr);
 218                 ret = 0;
 219                 goto end;
 220         }
 221
 222
 223
 224         if (infile) in = BIO_new_file(infile, "r");
 225         else in = BIO_new_fp(stdin, BIO_NOCLOSE);
 226
 227         if(!in) {
 228                 BIO_printf(bio_err, "Error opening input file\n");
 229                 ERR_print_errors(bio_err);
 230                 goto end;
 231         }
 232
 233         conf = NCONF_new(NULL);
 234         i = NCONF_load_bio(conf, in, NULL);
 235
 236         if(!i) {
 237                 BIO_printf(bio_err, "Error parsing config file\n");
 238                 ERR_print_errors(bio_err);
 239                 goto end;
 240         }
 241
 242         spkstr = NCONF_get_string(conf, spksect, spkac);
 243
 244         if(!spkstr) {
 245                 BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
 246                 ERR_print_errors(bio_err);
 247                 goto end;
 248         }
 249
 250         spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
 251
 252         if(!spki) {
 253                 BIO_printf(bio_err, "Error loading SPKAC\n");
 254                 ERR_print_errors(bio_err);
 255                 goto end;
 256         }
 257
 258         if (outfile) out = BIO_new_file(outfile, "w");
 259         else {
 260                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 261 #ifdef OPENSSL_SYS_VMS
 262                 {
 263                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 264                     out = BIO_push(tmpbio, out);
 265                 }
 266 #endif
 267         }
 268
 269         if(!out) {
 270                 BIO_printf(bio_err, "Error opening output file\n");
 271                 ERR_print_errors(bio_err);
 272                 goto end;
 273         }
 274
 275         if(!noout) NETSCAPE_SPKI_print(out, spki);
 276         pkey = NETSCAPE_SPKI_get_pubkey(spki);
 277         if(verify) {
 278                 i = NETSCAPE_SPKI_verify(spki, pkey);
 279                 if(i) BIO_printf(bio_err, "Signature OK\n");
 280                 else {
 281                         BIO_printf(bio_err, "Signature Failure\n");
 282                         ERR_print_errors(bio_err);
 283                         goto end;
 284                 }
 285         }
 286         if(pubkey) PEM_write_bio_PUBKEY(out, pkey);
 287
 288         ret = 0;
 289
 290 end:
 291         NCONF_free(conf);
 292         NETSCAPE_SPKI_free(spki);
 293         BIO_free(in);
 294         BIO_free_all(out);
 295         EVP_PKEY_free(pkey);
 296         if(passin) OPENSSL_free(passin);
 297         apps_shutdown();
 298         EXIT(ret);
 299         }