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/*
* lib/crypto/t_prf.c
*
* Copyright (C) 2004 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 the PRF code in Kerberos. 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.
*It includes an enctype and to be string2keyed followed by a number of bytes of input
*length, followed by that many bytes of input. The program outputs
*krb5_c_prf of that input and key as a hex string.
*/
#include "k5-int.h"
#include <assert.h>
int main () {
krb5_error_code ret;
krb5_data input, output;
krb5_keyblock *key = NULL;
unsigned int in_length;
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, &key) == 0);
input.data = &s[0];
input.length = strlen(s);
assert(krb5_c_string_to_key (0, enctype, &input, &input, key) == 0);
if (scanf("%u", &in_length) == EOF)
break;
if (in_length ) {
unsigned int lc;
assert ((input.data = malloc(in_length)) != NULL);
for (lc = in_length; lc > 0; lc--) {
scanf ("%2x", &i);
input.data[in_length-lc] = (unsigned) (i&0xff);
}
input.length = in_length;
assert (krb5_c_prf_length(0, enctype, &i) == 0);
assert (output.data = malloc(i));
output.length = i;
assert (krb5_c_prf(0, key, &input, &output) == 0);
free (input.data);
input.data = NULL;
}
for (; i > 0; i--) {
printf ("%02x",
(unsigned int) ((unsigned char ) output.data[output.length-i]));
}
printf ("\n");
free (output.data);
output.data = NULL;
krb5_free_keyblock(0, key);
key = NULL;
}
return (0);
}
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