Lionel Sambuc
ebfedea0ce
- crypto/external/bsd/heimdal - crypto/external/bsd/libsaslc - crypto/external/bsd/netpgp - crypto/external/bsd/openssl Change-Id: I91dbf05f33e637edf5b9bb408d5baddd7ba8cf75
115 lines
3.8 KiB
C
115 lines
3.8 KiB
C
/*-
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* Copyright (c) 2010 Alistair Crooks <agc@NetBSD.org>
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* 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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* 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <netdb.h>
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#include <netpgp.h>
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#include <regex.h>
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#include <sha1.h>
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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 <unistd.h>
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#include "libpaa.h"
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#define DEFAULT_HASH_ALG "SHA256"
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int
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main(int argc, char **argv)
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{
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paa_server_info_t server;
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paa_challenge_t challenge;
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paa_identity_t id;
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netpgp_t netpgp;
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char buf[2048];
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int secretc;
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int cc;
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int i;
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(void) memset(&server, 0x0, sizeof(server));
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(void) memset(&challenge, 0x0, sizeof(challenge));
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(void) memset(&id, 0x0, sizeof(id));
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(void) memset(&netpgp, 0x0, sizeof(netpgp));
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secretc = 64;
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while ((i = getopt(argc, argv, "S:c:d:r:u:")) != -1) {
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switch(i) {
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case 'S':
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netpgp_setvar(&netpgp, "ssh keys", "1");
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netpgp_setvar(&netpgp, "sshkeyfile", optarg);
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break;
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case 'c':
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secretc = atoi(optarg);
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break;
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case 'd':
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challenge.domain = optarg;
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break;
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case 'r':
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challenge.realm = optarg;
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break;
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case 'u':
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netpgp_setvar(&netpgp, "userid", optarg);
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break;
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}
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}
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netpgp_setvar(&netpgp, "hash", DEFAULT_HASH_ALG);
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netpgp_setvar(&netpgp, "need seckey", "1");
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netpgp_setvar(&netpgp, "need userid", "1");
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netpgp_set_homedir(&netpgp, getenv("HOME"),
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netpgp_getvar(&netpgp, "ssh keys") ? "/.ssh" : "/.gnupg", 1);
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if (!netpgp_init(&netpgp)) {
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(void) fprintf(stderr, "can't initialise netpgp\n");
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exit(EXIT_FAILURE);
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}
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if (!paa_server_init(&server, secretc)) {
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(void) fprintf(stderr, "can't initialise paa server\n");
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exit(EXIT_FAILURE);
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}
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/* format the challenge */
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cc = paa_format_challenge(&challenge, &server, buf, sizeof(buf));
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/* write challenge to temp file */
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paa_write_file("challenge", buf, cc);
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/* get the client to authenticate via paa, writing to temp response file */
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system("client/paaclient -r authentication@bigco.com < challenge > response");
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/* read in response */
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cc = paa_read_file("response", buf, sizeof(buf));
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if (!paa_check_response(&challenge, &id, &netpgp, buf)) {
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(void) fprintf(stderr, "server: paa_check failed\n");
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exit(EXIT_FAILURE);
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}
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printf("paa_check_response verified challenge: signature authenticated:\n");
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paa_print_identity(stdout, &id);
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printf("Changing buf[%d] from '%c' to '%c'\n", cc / 2, buf[cc / 2], buf[cc / 2] - 1);
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buf[cc / 2] = buf[cc / 2] - 1;
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if (paa_check_response(&challenge, &id, &netpgp, buf)) {
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(void) fprintf(stderr, "server: unexpected paa_check pass\n");
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exit(EXIT_FAILURE);
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}
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printf("paa_check_response verified challenge: signature not authenticated:\n");
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exit(EXIT_SUCCESS);
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}
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