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 #include <openssl/engine.h>
  73
  74 #undef PROG
  75 #define PROG    spkac_main
  76
  77 /* -in arg      - input file - default stdin
  78  * -out arg     - output file - default stdout
  79  */
  80
  81 int MAIN(int, char **);
  82
  83 int MAIN(int argc, char **argv)
  84         {
  85         ENGINE *e = NULL;
  86         int i,badops=0, ret = 1;
  87         BIO *in = NULL,*out = NULL, *key = NULL;
  88         int verify=0,noout=0,pubkey=0;
  89         char *infile = NULL,*outfile = NULL,*prog;
  90         char *passargin = NULL, *passin = NULL;
  91         char *spkac = "SPKAC", *spksect = "default", *spkstr = NULL;
  92         char *challenge = NULL, *keyfile = NULL;
  93         LHASH *conf = NULL;
  94         NETSCAPE_SPKI *spki = NULL;
  95         EVP_PKEY *pkey = NULL;
  96         char *engine=NULL;
  97
  98         apps_startup();
  99
 100         if (!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 101
 102         prog=argv[0];
 103         argc--;
 104         argv++;
 105         while (argc >= 1)
 106                 {
 107                 if (strcmp(*argv,"-in") == 0)
 108                         {
 109                         if (--argc < 1) goto bad;
 110                         infile= *(++argv);
 111                         }
 112                 else if (strcmp(*argv,"-out") == 0)
 113                         {
 114                         if (--argc < 1) goto bad;
 115                         outfile= *(++argv);
 116                         }
 117                 else if (strcmp(*argv,"-passin") == 0)
 118                         {
 119                         if (--argc < 1) goto bad;
 120                         passargin= *(++argv);
 121                         }
 122                 else if (strcmp(*argv,"-key") == 0)
 123                         {
 124                         if (--argc < 1) goto bad;
 125                         keyfile= *(++argv);
 126                         }
 127                 else if (strcmp(*argv,"-challenge") == 0)
 128                         {
 129                         if (--argc < 1) goto bad;
 130                         challenge= *(++argv);
 131                         }
 132                 else if (strcmp(*argv,"-spkac") == 0)
 133                         {
 134                         if (--argc < 1) goto bad;
 135                         spkac= *(++argv);
 136                         }
 137                 else if (strcmp(*argv,"-spksect") == 0)
 138                         {
 139                         if (--argc < 1) goto bad;
 140                         spksect= *(++argv);
 141                         }
 142                 else if (strcmp(*argv,"-engine") == 0)
 143                         {
 144                         if (--argc < 1) goto bad;
 145                         engine= *(++argv);
 146                         }
 147                 else if (strcmp(*argv,"-noout") == 0)
 148                         noout=1;
 149                 else if (strcmp(*argv,"-pubkey") == 0)
 150                         pubkey=1;
 151                 else if (strcmp(*argv,"-verify") == 0)
 152                         verify=1;
 153                 else badops = 1;
 154                 argc--;
 155                 argv++;
 156                 }
 157
 158         if (badops)
 159                 {
 160 bad:
 161                 BIO_printf(bio_err,"%s [options]\n",prog);
 162                 BIO_printf(bio_err,"where options are\n");
 163                 BIO_printf(bio_err," -in arg        input file\n");
 164                 BIO_printf(bio_err," -out arg       output file\n");
 165                 BIO_printf(bio_err," -key arg       create SPKAC using private key\n");
 166                 BIO_printf(bio_err," -passin arg    input file pass phrase source\n");
 167                 BIO_printf(bio_err," -challenge arg challenge string\n");
 168                 BIO_printf(bio_err," -spkac arg     alternative SPKAC name\n");
 169                 BIO_printf(bio_err," -noout         don't print SPKAC\n");
 170                 BIO_printf(bio_err," -pubkey        output public key\n");
 171                 BIO_printf(bio_err," -verify        verify SPKAC signature\n");
 172                 BIO_printf(bio_err," -engine e      use engine e, possibly a hardware device.\n");
 173                 goto end;
 174                 }
 175
 176         ERR_load_crypto_strings();
 177         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
 178                 BIO_printf(bio_err, "Error getting password\n");
 179                 goto end;
 180         }
 181
 182         if (engine != NULL)
 183                 {
 184                 if((e = ENGINE_by_id(engine)) == NULL)
 185                         {
 186                         BIO_printf(bio_err,"invalid engine \"%s\"\n",
 187                                 engine);
 188                         goto end;
 189                         }
 190                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
 191                         {
 192                         BIO_printf(bio_err,"can't use that engine\n");
 193                         goto end;
 194                         }
 195                 BIO_printf(bio_err,"engine \"%s\" set.\n", engine);
 196                 /* Free our "structural" reference. */
 197                 ENGINE_free(e);
 198                 }
 199
 200         if(keyfile) {
 201                 if(strcmp(keyfile, "-")) key = BIO_new_file(keyfile, "r");
 202                 else key = BIO_new_fp(stdin, BIO_NOCLOSE);
 203                 if(!key) {
 204                         BIO_printf(bio_err, "Error opening key file\n");
 205                         ERR_print_errors(bio_err);
 206                         goto end;
 207                 }
 208                 pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, passin);
 209                 if(!pkey) {
 210                         BIO_printf(bio_err, "Error reading private key\n");
 211                         ERR_print_errors(bio_err);
 212                         goto end;
 213                 }
 214                 spki = NETSCAPE_SPKI_new();
 215                 if(challenge) ASN1_STRING_set(spki->spkac->challenge,
 216                                                  challenge, strlen(challenge));
 217                 NETSCAPE_SPKI_set_pubkey(spki, pkey);
 218                 NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
 219                 spkstr = NETSCAPE_SPKI_b64_encode(spki);
 220
 221                 if (outfile) out = BIO_new_file(outfile, "w");
 222                 else {
 223                         out = BIO_new_fp(stdout, BIO_NOCLOSE);
 224 #ifdef VMS
 225                         {
 226                             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 227                             out = BIO_push(tmpbio, out);
 228                         }
 229 #endif
 230                 }
 231
 232                 if(!out) {
 233                         BIO_printf(bio_err, "Error opening output file\n");
 234                         ERR_print_errors(bio_err);
 235                         goto end;
 236                 }
 237                 BIO_printf(out, "SPKAC=%s\n", spkstr);
 238                 OPENSSL_free(spkstr);
 239                 ret = 0;
 240                 goto end;
 241         }
 242
 243
 244
 245         if (infile) in = BIO_new_file(infile, "r");
 246         else in = BIO_new_fp(stdin, BIO_NOCLOSE);
 247
 248         if(!in) {
 249                 BIO_printf(bio_err, "Error opening input file\n");
 250                 ERR_print_errors(bio_err);
 251                 goto end;
 252         }
 253
 254         conf = CONF_load_bio(NULL, in, NULL);
 255
 256         if(!conf) {
 257                 BIO_printf(bio_err, "Error parsing config file\n");
 258                 ERR_print_errors(bio_err);
 259                 goto end;
 260         }
 261
 262         spkstr = CONF_get_string(conf, spksect, spkac);
 263
 264         if(!spkstr) {
 265                 BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
 266                 ERR_print_errors(bio_err);
 267                 goto end;
 268         }
 269
 270         spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
 271
 272         if(!spki) {
 273                 BIO_printf(bio_err, "Error loading SPKAC\n");
 274                 ERR_print_errors(bio_err);
 275                 goto end;
 276         }
 277
 278         if (outfile) out = BIO_new_file(outfile, "w");
 279         else {
 280                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 281 #ifdef VMS
 282                 {
 283                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 284                     out = BIO_push(tmpbio, out);
 285                 }
 286 #endif
 287         }
 288
 289         if(!out) {
 290                 BIO_printf(bio_err, "Error opening output file\n");
 291                 ERR_print_errors(bio_err);
 292                 goto end;
 293         }
 294
 295         if(!noout) NETSCAPE_SPKI_print(out, spki);
 296         pkey = NETSCAPE_SPKI_get_pubkey(spki);
 297         if(verify) {
 298                 i = NETSCAPE_SPKI_verify(spki, pkey);
 299                 if(i) BIO_printf(bio_err, "Signature OK\n");
 300                 else {
 301                         BIO_printf(bio_err, "Signature Failure\n");
 302                         ERR_print_errors(bio_err);
 303                         goto end;
 304                 }
 305         }
 306         if(pubkey) PEM_write_bio_PUBKEY(out, pkey);
 307
 308         ret = 0;
 309
 310 end:
 311         CONF_free(conf);
 312         NETSCAPE_SPKI_free(spki);
 313         BIO_free(in);
 314         BIO_free_all(out);
 315         BIO_free(key);
 316         EVP_PKEY_free(pkey);
 317         if(passin) OPENSSL_free(passin);
 318         EXIT(ret);
 319         }