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/*
* lib/crypto/t_cf2.c
*
* Copyright (C) 2004, 2009 by the Massachusetts Institute of Technology.
* All rights reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
* This file contains tests for theKRB-FX-CF2 code in Kerberos, based
*on the PRF regression tests. It reads an input file, and writes an
*output file. It is assumed that the output file will be diffed
*against expected output to see whether regression tests pass. The
*input file is a very primitive format.
*First line: enctype
*second line: key to pass to string2key; also used as salt
*Third line: second key to pass to string2key
*fourth line: pepper1
*fifth line: pepper2
*scanf is used to read the file, so interior spaces are not permitted. The program outputs the hex bytes of the key.
*/
#include <krb5.h>
#include <assert.h>
#include <stdio.h>
#include <string.h>
int main () {
char pepper1[1024], pepper2[1024];
krb5_keyblock *k1 = NULL, *k2 = NULL, *out = NULL;
krb5_data s2k;
unsigned int i;
while (1) {
krb5_enctype enctype;
char s[1025];
if (scanf( "%d", &enctype) == EOF)
break;
if (scanf("%1024s", &s[0]) == EOF)
break;
assert (krb5_init_keyblock(0, enctype, 0, &k1) == 0);
s2k.data = &s[0];
s2k.length = strlen(s);
assert(krb5_c_string_to_key (0, enctype, &s2k, &s2k, k1) == 0);
if (scanf("%1024s", &s[0]) == EOF)
break;
assert (krb5_init_keyblock(0, enctype, 0, &k2) == 0);
s2k.data = &s[0];
s2k.length = strlen(s);
assert(krb5_c_string_to_key (0, enctype, &s2k, &s2k, k2) == 0);
if (scanf("%1024s %1024s", pepper1, pepper2) == EOF)
break;
assert(krb5_c_fx_cf2_simple(0, k1, pepper1,
k2, pepper2, &out) ==0);
i = out->length;
for (; i > 0; i--) {
printf ("%02x",
(unsigned int) ((unsigned char) out->contents[out->length-i]));
}
printf ("\n");
krb5_free_keyblock(0,out);
out = NULL;
krb5_free_keyblock(0, k1);
k1 = NULL;
krb5_free_keyblock(0, k2);
k2 = NULL;
}
return (0);
}
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