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/* $OpenBSD: spkac.c,v 1.9 2017/01/20 08:57:12 deraadt Exp $ */ |
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
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* project 1999. Based on an original idea by Massimiliano Pala |
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* (madwolf@openca.org). |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 1999 The OpenSSL Project. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* licensing@OpenSSL.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include "apps.h" |
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#include "progs.h" |
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#include <openssl/bio.h> |
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#include <openssl/conf.h> |
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#include <openssl/err.h> |
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#include <openssl/evp.h> |
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#include <openssl/lhash.h> |
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#include <openssl/pem.h> |
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#include <openssl/x509.h> |
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static struct { |
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char *challenge; |
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char *infile; |
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char *keyfile; |
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int noout; |
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char *outfile; |
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char *passargin; |
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int pubkey; |
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char *spkac; |
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char *spksect; |
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int verify; |
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} spkac_config; |
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static struct option spkac_options[] = { |
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{ |
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.name = "challenge", |
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.argname = "string", |
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.desc = "Specify challenge string if SPKAC is generated", |
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.type = OPTION_ARG, |
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.opt.arg = &spkac_config.challenge, |
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}, |
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{ |
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.name = "in", |
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.argname = "file", |
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.desc = "Input file (default stdin)", |
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.type = OPTION_ARG, |
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.opt.arg = &spkac_config.infile, |
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}, |
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{ |
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.name = "key", |
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.argname = "file", |
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.desc = "Create SPKAC using private key file", |
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.type = OPTION_ARG, |
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.opt.arg = &spkac_config.keyfile, |
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}, |
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{ |
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.name = "noout", |
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.desc = "Do not print text version of SPKAC", |
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.type = OPTION_FLAG, |
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.opt.flag = &spkac_config.noout, |
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}, |
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{ |
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.name = "out", |
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.argname = "file", |
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.desc = "Output file (default stdout)", |
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.type = OPTION_ARG, |
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.opt.arg = &spkac_config.outfile, |
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}, |
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{ |
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.name = "passin", |
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.argname = "src", |
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.desc = "Input file passphrase source", |
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.type = OPTION_ARG, |
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.opt.arg = &spkac_config.passargin, |
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}, |
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{ |
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.name = "pubkey", |
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.desc = "Output public key of an SPKAC (not used if creating)", |
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.type = OPTION_FLAG, |
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.opt.flag = &spkac_config.pubkey, |
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}, |
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{ |
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.name = "spkac", |
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.argname = "name", |
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.desc = "SPKAC name (default \"SPKAC\")", |
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.type = OPTION_ARG, |
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.opt.arg = &spkac_config.spkac, |
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}, |
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{ |
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.name = "spksect", |
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.argname = "name", |
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.desc = "Name of the section containing SPKAC (default" |
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" \"default\")", |
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.type = OPTION_ARG, |
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.opt.arg = &spkac_config.spksect, |
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}, |
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{ |
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.name = "verify", |
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.desc = "Verify digital signature on supplied SPKAC", |
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.type = OPTION_FLAG, |
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.opt.flag = &spkac_config.verify, |
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}, |
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{ NULL } |
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}; |
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static void |
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spkac_usage(void) |
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{ |
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fprintf(stderr, |
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"usage: spkac [-challenge string] [-in file] " |
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"[-key file] [-noout]\n" |
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" [-out file] [-passin src] [-pubkey] [-spkac name] " |
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"[-spksect section]\n" |
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" [-verify]\n\n"); |
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options_usage(spkac_options); |
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} |
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int |
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spkac_main(int argc, char **argv) |
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{ |
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int i, ret = 1; |
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BIO *in = NULL, *out = NULL; |
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char *passin = NULL; |
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char *spkstr = NULL; |
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CONF *conf = NULL; |
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NETSCAPE_SPKI *spki = NULL; |
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EVP_PKEY *pkey = NULL; |
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✓✗ |
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if (single_execution) { |
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✗✓ |
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if (pledge("stdio cpath wpath rpath tty flock", NULL) == -1) { |
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perror("pledge"); |
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exit(1); |
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} |
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} |
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memset(&spkac_config, 0, sizeof(spkac_config)); |
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spkac_config.spkac = "SPKAC"; |
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spkac_config.spksect = "default"; |
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✓✓ |
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if (options_parse(argc, argv, spkac_options, NULL, NULL) != 0) { |
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spkac_usage(); |
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return (1); |
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} |
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✗✓ |
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if (!app_passwd(bio_err, spkac_config.passargin, NULL, &passin, NULL)) { |
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BIO_printf(bio_err, "Error getting password\n"); |
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goto end; |
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} |
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✓✓ |
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if (spkac_config.keyfile) { |
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pkey = load_key(bio_err, |
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strcmp(spkac_config.keyfile, "-") ? spkac_config.keyfile |
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: NULL, FORMAT_PEM, 1, passin, "private key"); |
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✓✗ |
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if (!pkey) { |
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goto end; |
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} |
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spki = NETSCAPE_SPKI_new(); |
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✓✗ |
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if (spkac_config.challenge) |
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ASN1_STRING_set(spki->spkac->challenge, |
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spkac_config.challenge, |
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(int) strlen(spkac_config.challenge)); |
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NETSCAPE_SPKI_set_pubkey(spki, pkey); |
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NETSCAPE_SPKI_sign(spki, pkey, EVP_md5()); |
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spkstr = NETSCAPE_SPKI_b64_encode(spki); |
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✗✓ |
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if (spkstr == NULL) { |
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BIO_printf(bio_err, "Error encoding SPKAC\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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✓✗ |
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if (spkac_config.outfile) |
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out = BIO_new_file(spkac_config.outfile, "w"); |
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else |
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out = BIO_new_fp(stdout, BIO_NOCLOSE); |
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✗✓ |
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if (!out) { |
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BIO_printf(bio_err, "Error opening output file\n"); |
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ERR_print_errors(bio_err); |
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} else { |
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BIO_printf(out, "SPKAC=%s\n", spkstr); |
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ret = 0; |
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} |
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free(spkstr); |
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goto end; |
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} |
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✓✗ |
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if (spkac_config.infile) |
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in = BIO_new_file(spkac_config.infile, "r"); |
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else |
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in = BIO_new_fp(stdin, BIO_NOCLOSE); |
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✗✓ |
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if (!in) { |
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BIO_printf(bio_err, "Error opening input file\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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conf = NCONF_new(NULL); |
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i = NCONF_load_bio(conf, in, NULL); |
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✗✓ |
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if (!i) { |
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BIO_printf(bio_err, "Error parsing config file\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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spkstr = NCONF_get_string(conf, spkac_config.spksect, |
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spkac_config.spkac); |
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✗✓ |
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if (!spkstr) { |
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BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", |
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spkac_config.spkac); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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spki = NETSCAPE_SPKI_b64_decode(spkstr, -1); |
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✗✓ |
4 |
if (!spki) { |
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BIO_printf(bio_err, "Error loading SPKAC\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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✓✗ |
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if (spkac_config.outfile) |
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out = BIO_new_file(spkac_config.outfile, "w"); |
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else { |
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out = BIO_new_fp(stdout, BIO_NOCLOSE); |
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} |
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✗✓ |
4 |
if (!out) { |
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BIO_printf(bio_err, "Error opening output file\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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✓✗ |
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if (!spkac_config.noout) |
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|
4 |
NETSCAPE_SPKI_print(out, spki); |
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pkey = NETSCAPE_SPKI_get_pubkey(spki); |
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✓✗ |
4 |
if (spkac_config.verify) { |
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|
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i = NETSCAPE_SPKI_verify(spki, pkey); |
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✓✗ |
4 |
if (i > 0) |
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BIO_printf(bio_err, "Signature OK\n"); |
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else { |
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BIO_printf(bio_err, "Signature Failure\n"); |
295 |
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ERR_print_errors(bio_err); |
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goto end; |
297 |
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} |
298 |
|
4 |
} |
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✗✓ |
4 |
if (spkac_config.pubkey) |
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PEM_write_bio_PUBKEY(out, pkey); |
301 |
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|
4 |
ret = 0; |
303 |
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|
304 |
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end: |
305 |
|
8 |
NCONF_free(conf); |
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|
8 |
NETSCAPE_SPKI_free(spki); |
307 |
|
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BIO_free(in); |
308 |
|
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BIO_free_all(out); |
309 |
|
8 |
EVP_PKEY_free(pkey); |
310 |
|
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free(passin); |
311 |
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|
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|
8 |
return (ret); |
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|
12 |
} |