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/*
* Copyright (c) 1997 Stanford University
*
* The use of this software for revenue-generating purposes may require a
* license from the owners of the underlying intellectual property.
* Specifically, the SRP-1 protocol may not be used for revenue-generating
* purposes without license.
*
* Within that constraint, permission to use, copy, modify, and distribute
* this software and its documentation for any purpose is hereby granted
* without fee, provided that the above copyright notices and this permission
* notice appear in all copies of the software and related documentation.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF
* THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdio.h>
#include "t_defines.h"
#include "t_pwd.h"
#include "t_server.h"
int
main(argc, argv)
int argc;
char * argv[];
{
struct t_server * ts;
struct t_pw * tpw;
struct t_conf * tcnf;
struct t_num * B;
char username[MAXUSERLEN];
char hexbuf[MAXHEXPARAMLEN];
char buf[MAXPARAMLEN];
struct t_num A;
unsigned char * skey;
unsigned char cbuf[20];
FILE * fp;
FILE * fp2;
char confname[256];
if(argc > 1) {
fp = fopen(argv[1], "r");
sprintf(confname, "%s.conf", argv[1]);
fp2 = fopen(confname, "r");
}
else
fp = fp2 = NULL;
if((tpw = t_openpw(fp)) == NULL) {
fprintf(stderr, "Unable to open password file\n");
exit(1);
}
if((tcnf = t_openconf(fp2)) == NULL) {
fprintf(stderr, "Unable to open configuration file\n");
exit(1);
}
printf("Enter username: ");
gets(username);
ts = t_serveropen(username, tpw, tcnf);
t_closeconf(tcnf);
t_closepw(tpw);
if(fp)
fclose(fp);
if(fp2)
fclose(fp2);
printf("n (to client): %s\n", t_tob64(hexbuf, ts->n.data, ts->n.len));
printf("g (to client): %s\n", t_tob64(hexbuf, ts->g.data, ts->g.len));
printf("salt (to client): %s\n", t_tob64(hexbuf, ts->s.data, ts->s.len));
B = t_servergenexp(ts);
printf("Enter A (from client): ");
gets(hexbuf);
A.data = buf;
A.len = t_fromb64(A.data, hexbuf);
printf("B (to client): %s\n", t_tob64(hexbuf, B->data, B->len));
skey = t_servergetkey(ts, &A);
printf("Session key: %s\n", t_tohex(hexbuf, skey, 40));
/* printf("[Expected response: %s]\n", t_tohex(hexbuf, cbuf, 16)); */
printf("Enter response (from client): ");
gets(hexbuf);
t_fromhex(cbuf, hexbuf);
if(t_serververify(ts, cbuf) == 0)
printf("Authentication successful.\n");
else
printf("Authentication failed.\n");
t_serverclose(ts);
return 0;
}
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