/*
- * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (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 "../e_os.h"
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
-#include "internal/nelem.h"
-#include "internal/numbers.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"
-/*
- * In bn_lcl.h, bn_expand() is defined as a static ossl_inline function.
- * This is fine in itself, it will end up as an unused static function in
- * the worst case. However, it references bn_expand2(), which is a private
- * function in libcrypto and therefore unavailable on some systems. This
- * may result in a linker error because of unresolved symbols.
- *
- * To avoid this, we define a dummy variant of bn_expand2() here, and to
- * avoid possible clashes with libcrypto, we rename it first, using a macro.
- */
-#define bn_expand2 dummy_bn_expand2
-BIGNUM *bn_expand2(BIGNUM *b, int words);
-BIGNUM *bn_expand2(BIGNUM *b, int words) { return NULL; }
-#include "../crypto/bn/bn_lcl.h"
+#ifdef OPENSSL_SYS_WINDOWS
+# define strcasecmp _stricmp
+#endif
/*
* Things in boring, not in openssl. TODO we should add them.
}
+static int test_swap(void)
+{
+ BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL;
+ int top, cond, st = 0;
+
+ if (!TEST_ptr(a = BN_new())
+ || !TEST_ptr(b = BN_new())
+ || !TEST_ptr(c = BN_new())
+ || !TEST_ptr(d = BN_new()))
+ goto err;
+
+ BN_bntest_rand(a, 1024, 1, 0);
+ BN_bntest_rand(b, 1024, 1, 0);
+ BN_copy(c, a);
+ BN_copy(d, b);
+ top = BN_num_bits(a)/BN_BITS2;
+
+ /* regular swap */
+ BN_swap(a, b);
+ if (!equalBN("swap", a, d)
+ || !equalBN("swap", b, c))
+ goto err;
+
+ /* conditional swap: true */
+ cond = 1;
+ BN_consttime_swap(cond, a, b, top);
+ if (!equalBN("cswap true", a, c)
+ || !equalBN("cswap true", b, d))
+ goto err;
+
+ /* conditional swap: false */
+ cond = 0;
+ BN_consttime_swap(cond, a, b, top);
+ if (!equalBN("cswap false", a, c)
+ || !equalBN("cswap false", b, d))
+ goto err;
+
+ /* same tests but checking flag swap */
+ BN_set_flags(a, BN_FLG_CONSTTIME);
+
+ BN_swap(a, b);
+ if (!equalBN("swap, flags", a, d)
+ || !equalBN("swap, flags", b, c)
+ || !TEST_true(BN_get_flags(b, BN_FLG_CONSTTIME))
+ || !TEST_false(BN_get_flags(a, BN_FLG_CONSTTIME)))
+ goto err;
+
+ cond = 1;
+ BN_consttime_swap(cond, a, b, top);
+ if (!equalBN("cswap true, flags", a, c)
+ || !equalBN("cswap true, flags", b, d)
+ || !TEST_true(BN_get_flags(a, BN_FLG_CONSTTIME))
+ || !TEST_false(BN_get_flags(b, BN_FLG_CONSTTIME)))
+ goto err;
+
+ cond = 0;
+ BN_consttime_swap(cond, a, b, top);
+ if (!equalBN("cswap false, flags", a, c)
+ || !equalBN("cswap false, flags", b, d)
+ || !TEST_true(BN_get_flags(a, BN_FLG_CONSTTIME))
+ || !TEST_false(BN_get_flags(b, BN_FLG_CONSTTIME)))
+ goto err;
+
+ st = 1;
+ err:
+ BN_free(a);
+ BN_free(b);
+ BN_free(c);
+ BN_free(d);
+ return st;
+}
+
static int test_sub(void)
{
BIGNUM *a = NULL, *b = NULL, *c = NULL;
BN_add_word(b, i);
} else {
BN_bntest_rand(b, 400 + i - NUM1, 0, 0);
- a->neg = rand_neg();
- b->neg = rand_neg();
+ BN_set_negative(a, rand_neg());
+ BN_set_negative(b, rand_neg());
}
BN_sub(c, a, b);
BN_add(c, c, b);
BN_add_word(a, i);
} else
BN_bntest_rand(b, 50 + 3 * (i - NUM1), 0, 0);
- a->neg = rand_neg();
- b->neg = rand_neg();
+ BN_set_negative(a, rand_neg());
+ BN_set_negative(b, rand_neg());
BN_RECP_CTX_set(recp, b, ctx);
BN_div_recp(d, c, a, recp, ctx);
BN_mul(e, d, b, ctx);
BN_bntest_rand(a, 1024, 0, 0);
for (i = 0; i < NUM0; i++) {
BN_bntest_rand(b, 450 + i * 10, 0, 0);
- a->neg = rand_neg();
- b->neg = rand_neg();
+ BN_set_negative(a, rand_neg());
+ BN_set_negative(b, rand_neg());
BN_mod(c, a, b, ctx);
BN_div(d, e, a, b, ctx);
BN_sub(e, e, c);
BN_free(b);
b = BN_dup(a);
BN_MONT_CTX_set(mont, n, ctx);
- BN_mod_mul_montgomery(c, a, a, mont, ctx);
- BN_mod_mul_montgomery(d, a, b, mont, ctx);
- if (!TEST_BN_eq(c, d))
+ if (!TEST_true(BN_mod_mul_montgomery(c, a, a, mont, ctx))
+ || !TEST_true(BN_mod_mul_montgomery(d, a, b, mont, ctx))
+ || !TEST_BN_eq(c, d))
+ goto err;
+
+ /* Regression test for bug in BN_from_montgomery_word */
+ BN_hex2bn(&a,
+ "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
+ "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
+ "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF");
+ BN_hex2bn(&n,
+ "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
+ "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF");
+ BN_MONT_CTX_set(mont, n, ctx);
+ if (!TEST_false(BN_mod_mul_montgomery(d, a, a, mont, ctx)))
goto err;
/* Regression test for bug in rsaz_1024_mul_avx2 */
for (i = 0; i < NUM0; i++) {
BN_rand(a, 512, 0, 0);
BN_copy(b, BN_value_one());
- a->neg = rand_neg();
- b->neg = rand_neg();
+ BN_set_negative(a, rand_neg());
+ BN_set_negative(b, rand_neg());
BN_GF2m_add(c, a, b);
/* Test that two added values have the correct parity. */
if (!TEST_false((BN_is_odd(a) && BN_is_odd(c))
if (!TEST_true(BN_generate_prime_ex(b, 512, 0, NULL, NULL, NULL)))
goto err;
- b->neg = rand_neg();
+ BN_set_negative(b, rand_neg());
for (i = 0; i < NUM0; i++) {
if (!TEST_true(BN_bntest_rand(a, 512, 0, 0)))
goto err;
- a->neg = rand_neg();
+ BN_set_negative(a, rand_neg());
/* t := (|b|-1)/2 (note that b is odd) */
if (!TEST_true(BN_copy(t, b)))
goto err;
- t->neg = 0;
+ BN_set_negative(t, 0);
if (!TEST_true(BN_sub_word(t, 1)))
goto err;
if (!TEST_true(BN_rshift1(t, t)))
goto err;
/* r := a^t mod b */
- b->neg = 0;
+ BN_set_negative(b, 0);
if (!TEST_true(BN_mod_exp_recp(r, a, t, b, ctx)))
goto err;
- b->neg = 1;
+ BN_set_negative(b, 1);
if (BN_is_word(r, 1))
legendre = 1;
if (!TEST_int_ge(kronecker = BN_kronecker(a, b, ctx), -1))
goto err;
/* we actually need BN_kronecker(a, |b|) */
- if (a->neg && b->neg)
+ if (BN_is_negative(a) && BN_is_negative(b))
kronecker = -kronecker;
if (!TEST_int_eq(legendre, kronecker))
return st;
}
+static int test_expmodone(void)
+{
+ int ret = 0, i;
+ BIGNUM *r = BN_new();
+ BIGNUM *a = BN_new();
+ BIGNUM *p = BN_new();
+ BIGNUM *m = BN_new();
+
+ if (!TEST_ptr(r)
+ || !TEST_ptr(a)
+ || !TEST_ptr(p)
+ || !TEST_ptr(p)
+ || !TEST_ptr(m)
+ || !TEST_true(BN_set_word(a, 1))
+ || !TEST_true(BN_set_word(p, 0))
+ || !TEST_true(BN_set_word(m, 1)))
+ goto err;
+
+ /* Calculate r = 1 ^ 0 mod 1, and check the result is always 0 */
+ for (i = 0; i < 2; i++) {
+ if (!TEST_true(BN_mod_exp(r, a, p, m, NULL))
+ || !TEST_BN_eq_zero(r)
+ || !TEST_true(BN_mod_exp_mont(r, a, p, m, NULL, NULL))
+ || !TEST_BN_eq_zero(r)
+ || !TEST_true(BN_mod_exp_mont_consttime(r, a, p, m, NULL, NULL))
+ || !TEST_BN_eq_zero(r)
+ || !TEST_true(BN_mod_exp_mont_word(r, 1, p, m, NULL, NULL))
+ || !TEST_BN_eq_zero(r)
+ || !TEST_true(BN_mod_exp_simple(r, a, p, m, NULL))
+ || !TEST_BN_eq_zero(r)
+ || !TEST_true(BN_mod_exp_recp(r, a, p, m, NULL))
+ || !TEST_BN_eq_zero(r))
+ goto err;
+ /* Repeat for r = 1 ^ 0 mod -1 */
+ if (i == 0)
+ BN_set_negative(m, 1);
+ }
+
+ ret = 1;
+err:
+ BN_free(r);
+ BN_free(a);
+ BN_free(p);
+ BN_free(m);
+ return ret;
+}
+
static int test_smallprime(void)
{
static const int kBits = 10;
return st;
}
-static int test_3_is_prime(void)
+static int primes[] = { 2, 3, 5, 7, 17863 };
+
+static int test_is_prime(int i)
{
int ret = 0;
BIGNUM *r = NULL;
+ int trial;
- /*
- * For a long time, small primes were not considered prime when
- * do_trial_division was set.
- */
- if (!TEST_ptr(r = BN_new())
- || !TEST_true(BN_set_word(r, 3))
- || !TEST_int_eq(BN_is_prime_fasttest_ex(r, 3 /* nchecks */, ctx,
- 0 /* do_trial_division */, NULL), 1)
- || !TEST_int_eq(BN_is_prime_fasttest_ex(r, 3 /* nchecks */, ctx,
- 1 /* do_trial_division */, NULL), 1))
+ if (!TEST_ptr(r = BN_new()))
goto err;
+ for (trial = 0; trial <= 1; ++trial) {
+ if (!TEST_true(BN_set_word(r, primes[i]))
+ || !TEST_int_eq(BN_is_prime_fasttest_ex(r, 1, ctx, trial, NULL),
+ 1))
+ goto err;
+ }
+
ret = 1;
+err:
+ BN_free(r);
+ return ret;
+}
+
+static int not_primes[] = { -1, 0, 1, 4 };
+static int test_not_prime(int i)
+{
+ int ret = 0;
+ BIGNUM *r = NULL;
+ int trial;
+
+ if (!TEST_ptr(r = BN_new()))
+ goto err;
+
+ for (trial = 0; trial <= 1; ++trial) {
+ if (!TEST_true(BN_set_word(r, not_primes[i]))
+ || !TEST_false(BN_is_prime_fasttest_ex(r, 1, ctx, trial, NULL)))
+ goto err;
+ }
+
+ ret = 1;
err:
BN_free(r);
return ret;
ADD_TEST(test_negzero);
ADD_TEST(test_badmod);
ADD_TEST(test_expmodzero);
+ ADD_TEST(test_expmodone);
ADD_TEST(test_smallprime);
+ ADD_TEST(test_swap);
#ifndef OPENSSL_NO_EC2M
ADD_TEST(test_gf2m_add);
ADD_TEST(test_gf2m_mod);
ADD_TEST(test_gf2m_modsqrt);
ADD_TEST(test_gf2m_modsolvequad);
#endif
- ADD_TEST(test_3_is_prime);
+ ADD_ALL_TESTS(test_is_prime, (int)OSSL_NELEM(primes));
+ ADD_ALL_TESTS(test_not_prime, (int)OSSL_NELEM(not_primes));
} else {
ADD_ALL_TESTS(run_file_tests, n);
}
projects / openssl.git / blobdiff