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/* $OpenBSD: spkac.c,v 1.2 2014/08/28 14:23:52 jsing Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 1999. Based on an original idea by Massimiliano Pala
* (madwolf@openca.org).
*/
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/lhash.h>
#include <openssl/pem.h>
#include <openssl/x509.h>
/* -in arg - input file - default stdin
* -out arg - output file - default stdout
*/
int spkac_main(int, char **);
int
spkac_main(int argc, char **argv)
{
ENGINE *e = NULL;
int i, badops = 0, ret = 1;
BIO *in = NULL, *out = NULL;
int verify = 0, noout = 0, pubkey = 0;
char *infile = NULL, *outfile = NULL, *prog;
char *passargin = NULL, *passin = NULL;
const char *spkac = "SPKAC", *spksect = "default";
char *spkstr = NULL;
char *challenge = NULL, *keyfile = NULL;
CONF *conf = NULL;
NETSCAPE_SPKI *spki = NULL;
EVP_PKEY *pkey = NULL;
#ifndef OPENSSL_NO_ENGINE
char *engine = NULL;
#endif
prog = argv[0];
argc--;
argv++;
while (argc >= 1) {
if (strcmp(*argv, "-in") == 0) {
if (--argc < 1)
goto bad;
infile = *(++argv);
} else if (strcmp(*argv, "-out") == 0) {
if (--argc < 1)
goto bad;
outfile = *(++argv);
} else if (strcmp(*argv, "-passin") == 0) {
if (--argc < 1)
goto bad;
passargin = *(++argv);
} else if (strcmp(*argv, "-key") == 0) {
if (--argc < 1)
goto bad;
keyfile = *(++argv);
} else if (strcmp(*argv, "-challenge") == 0) {
if (--argc < 1)
goto bad;
challenge = *(++argv);
} else if (strcmp(*argv, "-spkac") == 0) {
if (--argc < 1)
goto bad;
spkac = *(++argv);
} else if (strcmp(*argv, "-spksect") == 0) {
if (--argc < 1)
goto bad;
spksect = *(++argv);
}
#ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv, "-engine") == 0) {
if (--argc < 1)
goto bad;
engine = *(++argv);
}
#endif
else if (strcmp(*argv, "-noout") == 0)
noout = 1;
else if (strcmp(*argv, "-pubkey") == 0)
pubkey = 1;
else if (strcmp(*argv, "-verify") == 0)
verify = 1;
else
badops = 1;
argc--;
argv++;
}
if (badops) {
bad:
BIO_printf(bio_err, "%s [options]\n", prog);
BIO_printf(bio_err, "where options are\n");
BIO_printf(bio_err, " -in arg input file\n");
BIO_printf(bio_err, " -out arg output file\n");
BIO_printf(bio_err, " -key arg create SPKAC using private key\n");
BIO_printf(bio_err, " -passin arg input file pass phrase source\n");
BIO_printf(bio_err, " -challenge arg challenge string\n");
BIO_printf(bio_err, " -spkac arg alternative SPKAC name\n");
BIO_printf(bio_err, " -noout don't print SPKAC\n");
BIO_printf(bio_err, " -pubkey output public key\n");
BIO_printf(bio_err, " -verify verify SPKAC signature\n");
#ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err, " -engine e use engine e, possibly a hardware device.\n");
#endif
goto end;
}
if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
#ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine, 0);
#endif
if (keyfile) {
pkey = load_key(bio_err,
strcmp(keyfile, "-") ? keyfile : NULL,
FORMAT_PEM, 1, passin, e, "private key");
if (!pkey) {
goto end;
}
spki = NETSCAPE_SPKI_new();
if (challenge)
ASN1_STRING_set(spki->spkac->challenge,
challenge, (int) strlen(challenge));
NETSCAPE_SPKI_set_pubkey(spki, pkey);
NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
spkstr = NETSCAPE_SPKI_b64_encode(spki);
if (spkstr == NULL) {
BIO_printf(bio_err, "Error encoding SPKAC\n");
ERR_print_errors(bio_err);
goto end;
}
if (outfile)
out = BIO_new_file(outfile, "w");
else
out = BIO_new_fp(stdout, BIO_NOCLOSE);
if (!out) {
BIO_printf(bio_err, "Error opening output file\n");
ERR_print_errors(bio_err);
} else {
BIO_printf(out, "SPKAC=%s\n", spkstr);
ret = 0;
}
free(spkstr);
goto end;
}
if (infile)
in = BIO_new_file(infile, "r");
else
in = BIO_new_fp(stdin, BIO_NOCLOSE);
if (!in) {
BIO_printf(bio_err, "Error opening input file\n");
ERR_print_errors(bio_err);
goto end;
}
conf = NCONF_new(NULL);
i = NCONF_load_bio(conf, in, NULL);
if (!i) {
BIO_printf(bio_err, "Error parsing config file\n");
ERR_print_errors(bio_err);
goto end;
}
spkstr = NCONF_get_string(conf, spksect, spkac);
if (!spkstr) {
BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
ERR_print_errors(bio_err);
goto end;
}
spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
if (!spki) {
BIO_printf(bio_err, "Error loading SPKAC\n");
ERR_print_errors(bio_err);
goto end;
}
if (outfile)
out = BIO_new_file(outfile, "w");
else {
out = BIO_new_fp(stdout, BIO_NOCLOSE);
}
if (!out) {
BIO_printf(bio_err, "Error opening output file\n");
ERR_print_errors(bio_err);
goto end;
}
if (!noout)
NETSCAPE_SPKI_print(out, spki);
pkey = NETSCAPE_SPKI_get_pubkey(spki);
if (verify) {
i = NETSCAPE_SPKI_verify(spki, pkey);
if (i > 0)
BIO_printf(bio_err, "Signature OK\n");
else {
BIO_printf(bio_err, "Signature Failure\n");
ERR_print_errors(bio_err);
goto end;
}
}
if (pubkey)
PEM_write_bio_PUBKEY(out, pkey);
ret = 0;
end:
NCONF_free(conf);
NETSCAPE_SPKI_free(spki);
BIO_free(in);
BIO_free_all(out);
EVP_PKEY_free(pkey);
free(passin);
return (ret);
}
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