apps/spkac.c

   1 /* apps/spkac.c */
   2
   3 /*
   4  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   5  * 1999. Based on an original idea by Massimiliano Pala (madwolf@openca.org).
   6  */
   7 /* ====================================================================
   8  * Copyright (c) 1999-2017 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 /*-
  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;
  88     int verify = 0, noout = 0, pubkey = 0;
  89     char *infile = NULL, *outfile = NULL, *prog;
  90     char *passargin = NULL, *passin = NULL;
  91     const char *spkac = "SPKAC", *spksect = "default";
  92     char *spkstr = NULL;
  93     char *challenge = NULL, *keyfile = NULL;
  94     CONF *conf = NULL;
  95     NETSCAPE_SPKI *spki = NULL;
  96     EVP_PKEY *pkey = NULL;
  97     char *engine = NULL;
  98
  99     apps_startup();
 100
 101     if (!bio_err)
 102         bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 103
 104     if (!load_config(bio_err, NULL))
 105         goto end;
 106
 107     prog = argv[0];
 108     argc--;
 109     argv++;
 110     while (argc >= 1) {
 111         if (strcmp(*argv, "-in") == 0) {
 112             if (--argc < 1)
 113                 goto bad;
 114             infile = *(++argv);
 115         } else if (strcmp(*argv, "-out") == 0) {
 116             if (--argc < 1)
 117                 goto bad;
 118             outfile = *(++argv);
 119         } else if (strcmp(*argv, "-passin") == 0) {
 120             if (--argc < 1)
 121                 goto bad;
 122             passargin = *(++argv);
 123         } else if (strcmp(*argv, "-key") == 0) {
 124             if (--argc < 1)
 125                 goto bad;
 126             keyfile = *(++argv);
 127         } else if (strcmp(*argv, "-challenge") == 0) {
 128             if (--argc < 1)
 129                 goto bad;
 130             challenge = *(++argv);
 131         } else if (strcmp(*argv, "-spkac") == 0) {
 132             if (--argc < 1)
 133                 goto bad;
 134             spkac = *(++argv);
 135         } else if (strcmp(*argv, "-spksect") == 0) {
 136             if (--argc < 1)
 137                 goto bad;
 138             spksect = *(++argv);
 139         }
 140 #ifndef OPENSSL_NO_ENGINE
 141         else if (strcmp(*argv, "-engine") == 0) {
 142             if (--argc < 1)
 143                 goto bad;
 144             engine = *(++argv);
 145         }
 146 #endif
 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
 154             badops = 1;
 155         argc--;
 156         argv++;
 157     }
 158
 159     if (badops) {
 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,
 166                    " -key arg       create SPKAC using private key\n");
 167         BIO_printf(bio_err,
 168                    " -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 #ifndef OPENSSL_NO_ENGINE
 175         BIO_printf(bio_err,
 176                    " -engine e      use engine e, possibly a hardware device.\n");
 177 #endif
 178         goto end;
 179     }
 180
 181     ERR_load_crypto_strings();
 182     if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
 183         BIO_printf(bio_err, "Error getting password\n");
 184         goto end;
 185     }
 186     e = setup_engine(bio_err, engine, 0);
 187
 188     if (keyfile != NULL) {
 189         pkey = load_key(bio_err,
 190                         strcmp(keyfile, "-") ? keyfile : NULL,
 191                         FORMAT_PEM, 1, passin, e, "private key");
 192         if (pkey == NULL)
 193             goto end;
 194         spki = NETSCAPE_SPKI_new();
 195         if (spki == NULL)
 196             goto end;
 197         if (challenge != NULL)
 198             ASN1_STRING_set(spki->spkac->challenge,
 199                             challenge, (int)strlen(challenge));
 200         NETSCAPE_SPKI_set_pubkey(spki, pkey);
 201         NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
 202         spkstr = NETSCAPE_SPKI_b64_encode(spki);
 203         if (spkstr == NULL)
 204             goto end;
 205
 206         if (outfile)
 207             out = BIO_new_file(outfile, "w");
 208         else {
 209             out = BIO_new_fp(stdout, BIO_NOCLOSE);
 210 #ifdef OPENSSL_SYS_VMS
 211             {
 212                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 213                 out = BIO_push(tmpbio, out);
 214             }
 215 #endif
 216         }
 217
 218         if (!out) {
 219             BIO_printf(bio_err, "Error opening output file\n");
 220             ERR_print_errors(bio_err);
 221             goto end;
 222         }
 223         BIO_printf(out, "SPKAC=%s\n", spkstr);
 224         OPENSSL_free(spkstr);
 225         ret = 0;
 226         goto end;
 227     }
 228
 229     if (infile)
 230         in = BIO_new_file(infile, "r");
 231     else
 232         in = BIO_new_fp(stdin, BIO_NOCLOSE);
 233
 234     if (!in) {
 235         BIO_printf(bio_err, "Error opening input file\n");
 236         ERR_print_errors(bio_err);
 237         goto end;
 238     }
 239
 240     conf = NCONF_new(NULL);
 241     i = NCONF_load_bio(conf, in, NULL);
 242
 243     if (!i) {
 244         BIO_printf(bio_err, "Error parsing config file\n");
 245         ERR_print_errors(bio_err);
 246         goto end;
 247     }
 248
 249     spkstr = NCONF_get_string(conf, spksect, spkac);
 250
 251     if (!spkstr) {
 252         BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
 253         ERR_print_errors(bio_err);
 254         goto end;
 255     }
 256
 257     spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
 258
 259     if (spki == NULL) {
 260         BIO_printf(bio_err, "Error loading SPKAC\n");
 261         ERR_print_errors(bio_err);
 262         goto end;
 263     }
 264
 265     if (outfile)
 266         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)
 284         NETSCAPE_SPKI_print(out, spki);
 285     pkey = NETSCAPE_SPKI_get_pubkey(spki);
 286     if (verify) {
 287         i = NETSCAPE_SPKI_verify(spki, pkey);
 288         if (i > 0) {
 289             BIO_printf(bio_err, "Signature OK\n");
 290         } else {
 291             BIO_printf(bio_err, "Signature Failure\n");
 292             ERR_print_errors(bio_err);
 293             goto end;
 294         }
 295     }
 296     if (pubkey)
 297         PEM_write_bio_PUBKEY(out, pkey);
 298
 299     ret = 0;
 300
 301  end:
 302     NCONF_free(conf);
 303     NETSCAPE_SPKI_free(spki);
 304     BIO_free(in);
 305     BIO_free_all(out);
 306     EVP_PKEY_free(pkey);
 307     release_engine(e);
 308     if (passin)
 309         OPENSSL_free(passin);
 310     apps_shutdown();
 311     OPENSSL_EXIT(ret);
 312 }