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253 lines
8.7 KiB
253 lines
8.7 KiB
4 months ago
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/*
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* stat-driver.c
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*
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* test driver for the stat_test functions
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*
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* David A. McGrew
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* Cisco Systems, Inc.
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*/
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/*
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*
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* Copyright (c) 2001-2017, Cisco Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* Neither the name of the Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h> /* for printf() */
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#include "err.h"
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#include "stat.h"
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#include "srtp.h"
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#include "cipher.h"
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#include "cipher_priv.h"
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void err_check(srtp_err_status_t s)
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{
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if (s) {
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printf("error (code %d)\n", s);
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exit(1);
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}
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}
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int main(int argc, char *argv[])
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{
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uint8_t buffer[2532];
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unsigned int buf_len = 2500;
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int i, j;
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extern srtp_cipher_type_t srtp_aes_icm_128;
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extern srtp_cipher_type_t srtp_aes_icm_256;
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#ifdef GCM
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extern srtp_cipher_type_t srtp_aes_gcm_128;
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extern srtp_cipher_type_t srtp_aes_gcm_256;
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#endif
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srtp_cipher_t *c;
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/* clang-format off */
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uint8_t key[46] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05
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};
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/* clang-format on */
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v128_t nonce;
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int num_trials = 500;
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int num_fail;
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printf("statistical tests driver\n");
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v128_set_to_zero(&nonce);
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for (i = 0; i < 2500; i++)
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buffer[i] = 0;
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/* run tests */
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printf("running stat_tests on all-null buffer, expecting failure\n");
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printf("monobit %d\n", stat_test_monobit(buffer));
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printf("poker %d\n", stat_test_poker(buffer));
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printf("runs %d\n", stat_test_runs(buffer));
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srtp_cipher_rand_for_tests(buffer, 2500);
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printf("running stat_tests on rand(), expecting success\n");
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printf("monobit %d\n", stat_test_monobit(buffer));
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printf("poker %d\n", stat_test_poker(buffer));
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printf("runs %d\n", stat_test_runs(buffer));
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printf("running stat_tests on AES-128-ICM, expecting success\n");
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/* set buffer to cipher output */
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for (i = 0; i < 2500; i++)
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buffer[i] = 0;
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err_check(srtp_cipher_type_alloc(&srtp_aes_icm_128, &c,
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SRTP_AES_ICM_128_KEY_LEN_WSALT, 0));
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err_check(srtp_cipher_init(c, key));
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err_check(srtp_cipher_set_iv(c, (uint8_t *)&nonce, srtp_direction_encrypt));
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err_check(srtp_cipher_encrypt(c, buffer, &buf_len));
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/* run tests on cipher outout */
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printf("monobit %d\n", stat_test_monobit(buffer));
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printf("poker %d\n", stat_test_poker(buffer));
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printf("runs %d\n", stat_test_runs(buffer));
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printf("runs test (please be patient): ");
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fflush(stdout);
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num_fail = 0;
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v128_set_to_zero(&nonce);
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for (j = 0; j < num_trials; j++) {
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for (i = 0; i < 2500; i++)
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buffer[i] = 0;
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nonce.v32[3] = i;
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err_check(
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srtp_cipher_set_iv(c, (uint8_t *)&nonce, srtp_direction_encrypt));
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err_check(srtp_cipher_encrypt(c, buffer, &buf_len));
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if (stat_test_runs(buffer)) {
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num_fail++;
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}
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}
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printf("%d failures in %d tests\n", num_fail, num_trials);
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printf("(nota bene: a small fraction of stat_test failures does not \n"
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"indicate that the random source is invalid)\n");
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err_check(srtp_cipher_dealloc(c));
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printf("running stat_tests on AES-256-ICM, expecting success\n");
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/* set buffer to cipher output */
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for (i = 0; i < 2500; i++)
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buffer[i] = 0;
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err_check(srtp_cipher_type_alloc(&srtp_aes_icm_256, &c,
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SRTP_AES_ICM_256_KEY_LEN_WSALT, 0));
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err_check(srtp_cipher_init(c, key));
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err_check(srtp_cipher_set_iv(c, (uint8_t *)&nonce, srtp_direction_encrypt));
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err_check(srtp_cipher_encrypt(c, buffer, &buf_len));
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/* run tests on cipher outout */
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printf("monobit %d\n", stat_test_monobit(buffer));
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printf("poker %d\n", stat_test_poker(buffer));
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printf("runs %d\n", stat_test_runs(buffer));
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printf("runs test (please be patient): ");
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fflush(stdout);
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num_fail = 0;
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v128_set_to_zero(&nonce);
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for (j = 0; j < num_trials; j++) {
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for (i = 0; i < 2500; i++)
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buffer[i] = 0;
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nonce.v32[3] = i;
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err_check(
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srtp_cipher_set_iv(c, (uint8_t *)&nonce, srtp_direction_encrypt));
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err_check(srtp_cipher_encrypt(c, buffer, &buf_len));
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if (stat_test_runs(buffer)) {
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num_fail++;
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}
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}
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#ifdef GCM
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{
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printf("running stat_tests on AES-128-GCM, expecting success\n");
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/* set buffer to cipher output */
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for (i = 0; i < 2500; i++) {
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buffer[i] = 0;
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}
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err_check(srtp_cipher_type_alloc(&srtp_aes_gcm_128, &c,
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SRTP_AES_GCM_128_KEY_LEN_WSALT, 8));
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err_check(srtp_cipher_init(c, key));
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err_check(
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srtp_cipher_set_iv(c, (uint8_t *)&nonce, srtp_direction_encrypt));
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err_check(srtp_cipher_encrypt(c, buffer, &buf_len));
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/* run tests on cipher outout */
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printf("monobit %d\n", stat_test_monobit(buffer));
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printf("poker %d\n", stat_test_poker(buffer));
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printf("runs %d\n", stat_test_runs(buffer));
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fflush(stdout);
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num_fail = 0;
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v128_set_to_zero(&nonce);
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for (j = 0; j < num_trials; j++) {
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for (i = 0; i < 2500; i++) {
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buffer[i] = 0;
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}
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nonce.v32[3] = i;
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err_check(srtp_cipher_set_iv(c, (uint8_t *)&nonce,
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srtp_direction_encrypt));
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err_check(srtp_cipher_encrypt(c, buffer, &buf_len));
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buf_len = 2500;
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if (stat_test_runs(buffer)) {
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num_fail++;
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}
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}
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printf("running stat_tests on AES-256-GCM, expecting success\n");
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/* set buffer to cipher output */
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for (i = 0; i < 2500; i++) {
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buffer[i] = 0;
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}
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err_check(srtp_cipher_type_alloc(&srtp_aes_gcm_256, &c,
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SRTP_AES_GCM_256_KEY_LEN_WSALT, 16));
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err_check(srtp_cipher_init(c, key));
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err_check(
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srtp_cipher_set_iv(c, (uint8_t *)&nonce, srtp_direction_encrypt));
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err_check(srtp_cipher_encrypt(c, buffer, &buf_len));
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/* run tests on cipher outout */
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printf("monobit %d\n", stat_test_monobit(buffer));
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printf("poker %d\n", stat_test_poker(buffer));
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printf("runs %d\n", stat_test_runs(buffer));
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fflush(stdout);
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num_fail = 0;
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v128_set_to_zero(&nonce);
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for (j = 0; j < num_trials; j++) {
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for (i = 0; i < 2500; i++) {
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buffer[i] = 0;
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}
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nonce.v32[3] = i;
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err_check(srtp_cipher_set_iv(c, (uint8_t *)&nonce,
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srtp_direction_encrypt));
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err_check(srtp_cipher_encrypt(c, buffer, &buf_len));
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buf_len = 2500;
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if (stat_test_runs(buffer)) {
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num_fail++;
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}
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}
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}
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#endif
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printf("%d failures in %d tests\n", num_fail, num_trials);
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printf("(nota bene: a small fraction of stat_test failures does not \n"
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"indicate that the random source is invalid)\n");
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err_check(srtp_cipher_dealloc(c));
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return 0;
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}
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