Viewing file:  bn_internal_test.c (2.63 KB) -rw-r--r--
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/*
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <openssl/bn.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#include "internal/nelem.h"
#include "internal/numbers.h"
#include "testutil.h"
#include "bn_prime.h"
#include "crypto/bn.h"
static BN_CTX *ctx;
static int test_is_prime_enhanced(void)
{
int ret;
int status = 0;
BIGNUM *bn = NULL;
ret = TEST_ptr(bn = BN_new())
/* test passing a prime returns the correct status */
&& TEST_true(BN_set_word(bn, 11))
/* return extra parameters related to composite */
&& TEST_true(ossl_bn_miller_rabin_is_prime(bn, 10, ctx, NULL, 1,
&status))
&& TEST_int_eq(status, BN_PRIMETEST_PROBABLY_PRIME);
BN_free(bn);
return ret;
}
static int composites[] = {
9, 21, 77, 81, 265
};
static int test_is_composite_enhanced(int id)
{
int ret;
int status = 0;
BIGNUM *bn = NULL;
ret = TEST_ptr(bn = BN_new())
/* negative tests for different composite numbers */
&& TEST_true(BN_set_word(bn, composites[id]))
&& TEST_true(ossl_bn_miller_rabin_is_prime(bn, 10, ctx, NULL, 1,
&status))
&& TEST_int_ne(status, BN_PRIMETEST_PROBABLY_PRIME);
BN_free(bn);
return ret;
}
/* Test that multiplying all the small primes from 3 to 751 equals a constant.
* This test is mainly used to test that both 32 and 64 bit are correct.
*/
static int test_bn_small_factors(void)
{
int ret = 0, i;
BIGNUM *b = NULL;
if (!(TEST_ptr(b = BN_new()) && TEST_true(BN_set_word(b, 3))))
goto err;
for (i = 1; i < NUMPRIMES; i++) {
prime_t p = primes[i];
if (p > 3 && p <= 751 && !BN_mul_word(b, p))
goto err;
if (p > 751)
break;
}
ret = TEST_BN_eq(ossl_bn_get0_small_factors(), b);
err:
BN_free(b);
return ret;
}
int setup_tests(void)
{
if (!TEST_ptr(ctx = BN_CTX_new()))
return 0;
ADD_TEST(test_is_prime_enhanced);
ADD_ALL_TESTS(test_is_composite_enhanced, (int)OSSL_NELEM(composites));
ADD_TEST(test_bn_small_factors);
return 1;
}
void cleanup_tests(void)
{
BN_CTX_free(ctx);
}
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