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/*
* Copyright (c) 1997-1999 The Stanford SRP Authentication Project
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* 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.
*
* In addition, the following conditions apply:
*
* 1. Any software that incorporates the SRP authentication technology
* must display the following acknowlegment:
* "This product uses the 'Secure Remote Password' cryptographic
* authentication system developed by Tom Wu (tjw@CS.Stanford.EDU)."
*
* 2. Any software that incorporates all or part of the SRP distribution
* itself must also display the following acknowledgment:
* "This product includes software developed by Tom Wu and Eugene
* Jhong for the SRP Distribution (http://srp.stanford.edu/srp/)."
*
* 3. Redistributions in source or binary form must retain an intact copy
* of this copyright notice and list of conditions.
*/
#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];
printf("Enter username: ");
fgets(username, sizeof(username), stdin);
username[strlen(username) - 1] = '\0';
ts = t_serveropen(username);
if(ts == NULL) {
fprintf(stderr, "User %s not found\n", username);
exit(1);
}
#if 0
printf("n: %s\n", t_tob64(hexbuf, ts->n.data, ts->n.len));
printf("g: %s\n", t_tob64(hexbuf, ts->g.data, ts->g.len));
#endif
printf("index (to client): %d\n", ts->index);
printf("salt (to client): %s\n", t_tob64(hexbuf, ts->s.data, ts->s.len));
B = t_servergenexp(ts);
printf("Enter A (from client): ");
fgets(hexbuf, sizeof(hexbuf), stdin);
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): ");
fgets(hexbuf, sizeof(hexbuf), stdin);
hexbuf[strlen(hexbuf) - 1] = '\0';
t_fromhex(cbuf, hexbuf);
if(t_serververify(ts, cbuf) == 0) {
printf("Authentication successful.\n");
printf("Response (to client): %s\n",
t_tohex(hexbuf, t_serverresponse(ts), RESPONSE_LEN));
} else
printf("Authentication failed.\n");
t_serverclose(ts);
return 0;
}
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