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 #ifndef OPENSSL_NO_ENGINE
  96         char *engine=NULL;
  97 #endif
  98
  99         apps_startup();
 100
 101         if (!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 102
 103         if (!load_config(bio_err, NULL))
 104                 goto end;
 105
 106         prog=argv[0];
 107         argc--;
 108         argv++;
 109         while (argc >= 1)
 110                 {
 111                 if (strcmp(*argv,"-in") == 0)
 112                         {
 113                         if (--argc < 1) goto bad;
 114                         infile= *(++argv);
 115                         }
 116                 else if (strcmp(*argv,"-out") == 0)
 117                         {
 118                         if (--argc < 1) goto bad;
 119                         outfile= *(++argv);
 120                         }
 121                 else if (strcmp(*argv,"-passin") == 0)
 122                         {
 123                         if (--argc < 1) goto bad;
 124                         passargin= *(++argv);
 125                         }
 126                 else if (strcmp(*argv,"-key") == 0)
 127                         {
 128                         if (--argc < 1) goto bad;
 129                         keyfile= *(++argv);
 130                         }
 131                 else if (strcmp(*argv,"-challenge") == 0)
 132                         {
 133                         if (--argc < 1) goto bad;
 134                         challenge= *(++argv);
 135                         }
 136                 else if (strcmp(*argv,"-spkac") == 0)
 137                         {
 138                         if (--argc < 1) goto bad;
 139                         spkac= *(++argv);
 140                         }
 141                 else if (strcmp(*argv,"-spksect") == 0)
 142                         {
 143                         if (--argc < 1) goto bad;
 144                         spksect= *(++argv);
 145                         }
 146 #ifndef OPENSSL_NO_ENGINE
 147                 else if (strcmp(*argv,"-engine") == 0)
 148                         {
 149                         if (--argc < 1) goto bad;
 150                         engine= *(++argv);
 151                         }
 152 #endif
 153                 else if (strcmp(*argv,"-noout") == 0)
 154                         noout=1;
 155                 else if (strcmp(*argv,"-pubkey") == 0)
 156                         pubkey=1;
 157                 else if (strcmp(*argv,"-verify") == 0)
 158                         verify=1;
 159                 else badops = 1;
 160                 argc--;
 161                 argv++;
 162                 }
 163
 164         if (badops)
 165                 {
 166 bad:
 167                 BIO_printf(bio_err,"%s [options]\n",prog);
 168                 BIO_printf(bio_err,"where options are\n");
 169                 BIO_printf(bio_err," -in arg        input file\n");
 170                 BIO_printf(bio_err," -out arg       output file\n");
 171                 BIO_printf(bio_err," -key arg       create SPKAC using private key\n");
 172                 BIO_printf(bio_err," -passin arg    input file pass phrase source\n");
 173                 BIO_printf(bio_err," -challenge arg challenge string\n");
 174                 BIO_printf(bio_err," -spkac arg     alternative SPKAC name\n");
 175                 BIO_printf(bio_err," -noout         don't print SPKAC\n");
 176                 BIO_printf(bio_err," -pubkey        output public key\n");
 177                 BIO_printf(bio_err," -verify        verify SPKAC signature\n");
 178 #ifndef OPENSSL_NO_ENGINE
 179                 BIO_printf(bio_err," -engine e      use engine e, possibly a hardware device.\n");
 180 #endif
 181                 goto end;
 182                 }
 183
 184         ERR_load_crypto_strings();
 185         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
 186                 BIO_printf(bio_err, "Error getting password\n");
 187                 goto end;
 188         }
 189
 190 #ifndef OPENSSL_NO_ENGINE
 191         e = setup_engine(bio_err, engine, 0);
 192 #endif
 193
 194         if(keyfile) {
 195                 pkey = load_key(bio_err,
 196                                 strcmp(keyfile, "-") ? keyfile : NULL,
 197                                 FORMAT_PEM, 1, passin, e, "private key");
 198                 if(!pkey) {
 199                         goto end;
 200                 }
 201                 spki = NETSCAPE_SPKI_new();
 202                 if(challenge) ASN1_STRING_set(spki->spkac->challenge,
 203                                                  challenge, strlen(challenge));
 204                 NETSCAPE_SPKI_set_pubkey(spki, pkey);
 205                 NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
 206                 spkstr = NETSCAPE_SPKI_b64_encode(spki);
 207
 208                 if (outfile) out = BIO_new_file(outfile, "w");
 209                 else {
 210                         out = BIO_new_fp(stdout, BIO_NOCLOSE);
 211 #ifdef OPENSSL_SYS_VMS
 212                         {
 213                             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 214                             out = BIO_push(tmpbio, out);
 215                         }
 216 #endif
 217                 }
 218
 219                 if(!out) {
 220                         BIO_printf(bio_err, "Error opening output file\n");
 221                         ERR_print_errors(bio_err);
 222                         goto end;
 223                 }
 224                 BIO_printf(out, "SPKAC=%s\n", spkstr);
 225                 OPENSSL_free(spkstr);
 226                 ret = 0;
 227                 goto end;
 228         }
 229
 230
 231
 232         if (infile) in = BIO_new_file(infile, "r");
 233         else in = BIO_new_fp(stdin, BIO_NOCLOSE);
 234
 235         if(!in) {
 236                 BIO_printf(bio_err, "Error opening input file\n");
 237                 ERR_print_errors(bio_err);
 238                 goto end;
 239         }
 240
 241         conf = NCONF_new(NULL);
 242         i = NCONF_load_bio(conf, in, NULL);
 243
 244         if(!i) {
 245                 BIO_printf(bio_err, "Error parsing config file\n");
 246                 ERR_print_errors(bio_err);
 247                 goto end;
 248         }
 249
 250         spkstr = NCONF_get_string(conf, spksect, spkac);
 251
 252         if(!spkstr) {
 253                 BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
 254                 ERR_print_errors(bio_err);
 255                 goto end;
 256         }
 257
 258         spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
 259
 260         if(!spki) {
 261                 BIO_printf(bio_err, "Error loading SPKAC\n");
 262                 ERR_print_errors(bio_err);
 263                 goto end;
 264         }
 265
 266         if (outfile) out = BIO_new_file(outfile, "w");
 267         else {
 268                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 269 #ifdef OPENSSL_SYS_VMS
 270                 {
 271                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 272                     out = BIO_push(tmpbio, out);
 273                 }
 274 #endif
 275         }
 276
 277         if(!out) {
 278                 BIO_printf(bio_err, "Error opening output file\n");
 279                 ERR_print_errors(bio_err);
 280                 goto end;
 281         }
 282
 283         if(!noout) NETSCAPE_SPKI_print(out, spki);
 284         pkey = NETSCAPE_SPKI_get_pubkey(spki);
 285         if(verify) {
 286                 i = NETSCAPE_SPKI_verify(spki, pkey);
 287                 if(i) BIO_printf(bio_err, "Signature OK\n");
 288                 else {
 289                         BIO_printf(bio_err, "Signature Failure\n");
 290                         ERR_print_errors(bio_err);
 291                         goto end;
 292                 }
 293         }
 294         if(pubkey) PEM_write_bio_PUBKEY(out, pkey);
 295
 296         ret = 0;
 297
 298 end:
 299         NCONF_free(conf);
 300         NETSCAPE_SPKI_free(spki);
 301         BIO_free(in);
 302         BIO_free_all(out);
 303         EVP_PKEY_free(pkey);
 304         if(passin) OPENSSL_free(passin);
 305         apps_shutdown();
 306         OPENSSL_EXIT(ret);
 307         }