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/*
* stat-driver.c
*
* test driver for the stat_test functions
*
* David A. McGrew
* Cisco Systems, Inc.
*/
/*
*
* Copyright (c) 2001-2006, Cisco Systems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* Neither the name of the Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <stdio.h> /* for printf() */
#include "err.h"
#include "stat.h"
#include "cipher.h"
typedef struct {
void *state;
} random_source_t;
err_status_t
random_source_alloc(void);
void
err_check(err_status_t s) {
if (s) {
printf("error (code %d)\n", s);
exit(1);
}
}
int
main (int argc, char *argv[]) {
uint8_t buffer[2500];
unsigned int buf_len = 2500;
int i, j;
extern cipher_type_t aes_icm;
cipher_t *c;
uint8_t key[46] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05
};
v128_t nonce;
int num_trials = 500;
int num_fail;
printf("statistical tests driver\n");
for (i=0; i < 2500; i++)
buffer[i] = 0;
/* run tests */
printf("running stat_tests on all-null buffer, expecting failure\n");
printf("monobit %d\n", stat_test_monobit(buffer));
printf("poker %d\n", stat_test_poker(buffer));
printf("runs %d\n", stat_test_runs(buffer));
for (i=0; i < 2500; i++)
buffer[i] = rand();
printf("running stat_tests on rand(), expecting success\n");
printf("monobit %d\n", stat_test_monobit(buffer));
printf("poker %d\n", stat_test_poker(buffer));
printf("runs %d\n", stat_test_runs(buffer));
printf("running stat_tests on AES-128-ICM, expecting success\n");
/* set buffer to cipher output */
for (i=0; i < 2500; i++)
buffer[i] = 0;
err_check(cipher_type_alloc(&aes_icm, &c, 30));
err_check(cipher_init(c, key, direction_encrypt));
err_check(cipher_set_iv(c, &nonce));
err_check(cipher_encrypt(c, buffer, &buf_len));
/* run tests on cipher outout */
printf("monobit %d\n", stat_test_monobit(buffer));
printf("poker %d\n", stat_test_poker(buffer));
printf("runs %d\n", stat_test_runs(buffer));
printf("runs test (please be patient): ");
fflush(stdout);
num_fail = 0;
v128_set_to_zero(&nonce);
for(j=0; j < num_trials; j++) {
for (i=0; i < 2500; i++)
buffer[i] = 0;
nonce.v32[3] = i;
err_check(cipher_set_iv(c, &nonce));
err_check(cipher_encrypt(c, buffer, &buf_len));
if (stat_test_runs(buffer)) {
num_fail++;
}
}
printf("%d failures in %d tests\n", num_fail, num_trials);
printf("(nota bene: a small fraction of stat_test failures does not \n"
"indicate that the random source is invalid)\n");
err_check(cipher_dealloc(c));
printf("running stat_tests on AES-256-ICM, expecting success\n");
/* set buffer to cipher output */
for (i=0; i < 2500; i++)
buffer[i] = 0;
err_check(cipher_type_alloc(&aes_icm, &c, 46));
err_check(cipher_init(c, key, direction_encrypt));
err_check(cipher_set_iv(c, &nonce));
err_check(cipher_encrypt(c, buffer, &buf_len));
/* run tests on cipher outout */
printf("monobit %d\n", stat_test_monobit(buffer));
printf("poker %d\n", stat_test_poker(buffer));
printf("runs %d\n", stat_test_runs(buffer));
printf("runs test (please be patient): ");
fflush(stdout);
num_fail = 0;
v128_set_to_zero(&nonce);
for(j=0; j < num_trials; j++) {
for (i=0; i < 2500; i++)
buffer[i] = 0;
nonce.v32[3] = i;
err_check(cipher_set_iv(c, &nonce));
err_check(cipher_encrypt(c, buffer, &buf_len));
if (stat_test_runs(buffer)) {
num_fail++;
}
}
printf("%d failures in %d tests\n", num_fail, num_trials);
printf("(nota bene: a small fraction of stat_test failures does not \n"
"indicate that the random source is invalid)\n");
err_check(cipher_dealloc(c));
return 0;
}
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