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83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/*
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* Copyright (C) 2020 HAW Hamburg
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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*
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* @file
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* @brief Test cases for the SHA1PRNG pseudo random number generator
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*
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* @author Peter Kietzmann <peter.kietzmann@haw-hamburg.de>
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include "kernel_defines.h"
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#include "random.h"
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/**
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* @brief expected sequence for seed=1. This sequence was generated running the
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* following java program (openjdk 11.0.7) as a reference.
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*
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*~~~~
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* import java.security.SecureRandom;
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*
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* public class SHA1PRNGTEST {
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* public static void main(String args[]) throws Exception {
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* SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
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* random.setSeed(1);
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* int number = 0;
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* for (int i = 0; i < 20; i++) {
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* number = random.nextInt();
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* System.out.print(Integer.toUnsignedString(number) + " ");
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* }
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* System.out.println("");
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* }
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* }
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*~~~~
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*/
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static const uint32_t seq_seed1[] =
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{2529905901, 3336014406, 1714755920, 3709666991, 1432426612, 554064022,
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1614405352, 861636861, 3689098857, 3893737371, 3138964692, 506954022,
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3469584855, 4144207589, 2031557795, 3248917850, 2384338299, 3341545824,
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2454801916, 3985646079};
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static void test_prng_sha1prng_java_u32(void)
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{
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uint32_t seed[2] = {1, 0};
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uint32_t test32[ARRAY_SIZE(seq_seed1)];
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/* seed the generator with 8 bytes similar to the java reference
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* implementation
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*/
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random_init_by_array(seed, ARRAY_SIZE(seed));
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/* request random samples */
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for (unsigned i = 0; i < ARRAY_SIZE(seq_seed1); i++) {
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test32[i] = random_uint32();
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}
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/* compare generator output and reference */
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if (!(memcmp(test32, seq_seed1, sizeof(seq_seed1)))) {
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printf("%s:SUCCESS\n", __func__);
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}
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else {
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printf("%s:FAILURE\n", __func__);
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}
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}
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int main(void)
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{
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test_prng_sha1prng_java_u32();
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return 0;
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}
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