X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=test%2Fexptest.c;h=9de922e9790c90a6f64db4eb39a8028c77fd983d;hp=5cd79e2970b9518daa60fb92b2e960213088d811;hb=9e206ce5f80172136b503ca23fbd8e53b78eb4b7;hpb=541e9565bb5b860e9e0b5faeb5d474deeaef743b diff --git a/test/exptest.c b/test/exptest.c index 5cd79e2970..9de922e979 100644 --- a/test/exptest.c +++ b/test/exptest.c @@ -1,58 +1,10 @@ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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. +/* + * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved. * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] + * 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 @@ -66,34 +18,32 @@ #include #include +#include "testutil.h" + #define NUM_BITS (BN_BITS2 * 4) -static const char rnd_seed[] = - "string to make the random number generator think it has entropy"; +#define BN_print_var(v) test_output_bignum(#v, v) /* * Test that r == 0 in test_exp_mod_zero(). Returns one on success, * returns zero and prints debug output otherwise. */ static int a_is_zero_mod_one(const char *method, const BIGNUM *r, - const BIGNUM *a) { + const BIGNUM *a) +{ if (!BN_is_zero(r)) { - fprintf(stderr, "%s failed:\n", method); - fprintf(stderr, "a ** 0 mod 1 = r (should be 0)\n"); - fprintf(stderr, "a = "); - BN_print_fp(stderr, a); - fprintf(stderr, "\nr = "); - BN_print_fp(stderr, r); - fprintf(stderr, "\n"); + TEST_error("%s failed: a ** 0 mod 1 = r (should be 0)", method); + BN_print_var(a); + BN_print_var(r); return 0; } return 1; } /* - * test_exp_mod_zero tests that x**0 mod 1 == 0. It returns zero on success. + * test_mod_exp_zero tests that x**0 mod 1 == 0. It returns zero on success. */ -static int test_exp_mod_zero() +static int test_mod_exp_zero() { BIGNUM *a = NULL, *p = NULL, *m = NULL; BIGNUM *r = NULL; @@ -101,77 +51,64 @@ static int test_exp_mod_zero() BN_CTX *ctx = BN_CTX_new(); int ret = 1, failed = 0; - m = BN_new(); - if (!m) + if (!TEST_ptr(m = BN_new()) + || !TEST_ptr(a = BN_new()) + || !TEST_ptr(p = BN_new()) + || !TEST_ptr(r = BN_new())) goto err; - BN_one(m); - a = BN_new(); - if (!a) - goto err; + BN_one(m); BN_one(a); - - p = BN_new(); - if (!p) - goto err; BN_zero(p); - r = BN_new(); - if (!r) - goto err; - - if (!BN_rand(a, 1024, 0, 0)) + if (!TEST_true(BN_rand(a, 1024, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY))) goto err; - if (!BN_mod_exp(r, a, p, m, ctx)) + if (!TEST_true(BN_mod_exp(r, a, p, m, ctx))) goto err; - if (!a_is_zero_mod_one("BN_mod_exp", r, a)) + if (!TEST_true(a_is_zero_mod_one("BN_mod_exp", r, a))) failed = 1; - if (!BN_mod_exp_recp(r, a, p, m, ctx)) + if (!TEST_true(BN_mod_exp_recp(r, a, p, m, ctx))) goto err; - if (!a_is_zero_mod_one("BN_mod_exp_recp", r, a)) + if (!TEST_true(a_is_zero_mod_one("BN_mod_exp_recp", r, a))) failed = 1; - if (!BN_mod_exp_simple(r, a, p, m, ctx)) + if (!TEST_true(BN_mod_exp_simple(r, a, p, m, ctx))) goto err; - if (!a_is_zero_mod_one("BN_mod_exp_simple", r, a)) + if (!TEST_true(a_is_zero_mod_one("BN_mod_exp_simple", r, a))) failed = 1; - if (!BN_mod_exp_mont(r, a, p, m, ctx, NULL)) + if (!TEST_true(BN_mod_exp_mont(r, a, p, m, ctx, NULL))) goto err; - if (!a_is_zero_mod_one("BN_mod_exp_mont", r, a)) + if (!TEST_true(a_is_zero_mod_one("BN_mod_exp_mont", r, a))) failed = 1; - if (!BN_mod_exp_mont_consttime(r, a, p, m, ctx, NULL)) { + if (!TEST_true(BN_mod_exp_mont_consttime(r, a, p, m, ctx, NULL))) goto err; - } - if (!a_is_zero_mod_one("BN_mod_exp_mont_consttime", r, a)) + if (!TEST_true(a_is_zero_mod_one("BN_mod_exp_mont_consttime", r, a))) failed = 1; /* * A different codepath exists for single word multiplication * in non-constant-time only. */ - if (!BN_mod_exp_mont_word(r, one_word, p, m, ctx, NULL)) + if (!TEST_true(BN_mod_exp_mont_word(r, one_word, p, m, ctx, NULL))) goto err; - if (!BN_is_zero(r)) { - fprintf(stderr, "BN_mod_exp_mont_word failed:\n"); - fprintf(stderr, "1 ** 0 mod 1 = r (should be 0)\n"); - fprintf(stderr, "r = "); - BN_print_fp(stderr, r); - fprintf(stderr, "\n"); - return 0; + if (!TEST_BN_eq_zero(r)) { + TEST_error("BN_mod_exp_mont_word failed: " + "1 ** 0 mod 1 = r (should be 0)"); + BN_print_var(r); + goto err; } - ret = failed; - + ret = !failed; err: BN_free(r); BN_free(a); @@ -182,114 +119,73 @@ static int test_exp_mod_zero() return ret; } -int main(int argc, char *argv[]) +static int test_mod_exp(int round) { BN_CTX *ctx; - BIO *out = NULL; - int i, ret; unsigned char c; - BIGNUM *r_mont, *r_mont_const, *r_recp, *r_simple, *a, *b, *m; - - RAND_seed(rnd_seed, sizeof rnd_seed); /* or BN_rand may fail, and we - * don't even check its return - * value (which we should) */ - - ERR_load_BN_strings(); - - ctx = BN_CTX_new(); - if (ctx == NULL) - EXIT(1); - r_mont = BN_new(); - r_mont_const = BN_new(); - r_recp = BN_new(); - r_simple = BN_new(); - a = BN_new(); - b = BN_new(); - m = BN_new(); - if ((r_mont == NULL) || (r_recp == NULL) || (a == NULL) || (b == NULL)) + int ret = 0; + BIGNUM *r_mont = NULL; + BIGNUM *r_mont_const = NULL; + BIGNUM *r_recp = NULL; + BIGNUM *r_simple = NULL; + BIGNUM *a = NULL; + BIGNUM *b = NULL; + BIGNUM *m = NULL; + + if (!TEST_ptr(ctx = BN_CTX_new())) + goto err; + + if (!TEST_ptr(r_mont = BN_new()) + || !TEST_ptr(r_mont_const = BN_new()) + || !TEST_ptr(r_recp = BN_new()) + || !TEST_ptr(r_simple = BN_new()) + || !TEST_ptr(a = BN_new()) + || !TEST_ptr(b = BN_new()) + || !TEST_ptr(m = BN_new())) goto err; - out = BIO_new(BIO_s_file()); - - if (out == NULL) - EXIT(1); - BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT); - - for (i = 0; i < 200; i++) { - RAND_bytes(&c, 1); - c = (c % BN_BITS) - BN_BITS2; - BN_rand(a, NUM_BITS + c, 0, 0); - - RAND_bytes(&c, 1); - c = (c % BN_BITS) - BN_BITS2; - BN_rand(b, NUM_BITS + c, 0, 0); - - RAND_bytes(&c, 1); - c = (c % BN_BITS) - BN_BITS2; - BN_rand(m, NUM_BITS + c, 0, 1); - - BN_mod(a, a, m, ctx); - BN_mod(b, b, m, ctx); - - ret = BN_mod_exp_mont(r_mont, a, b, m, ctx, NULL); - if (ret <= 0) { - printf("BN_mod_exp_mont() problems\n"); - ERR_print_errors(out); - EXIT(1); - } - - ret = BN_mod_exp_recp(r_recp, a, b, m, ctx); - if (ret <= 0) { - printf("BN_mod_exp_recp() problems\n"); - ERR_print_errors(out); - EXIT(1); - } - - ret = BN_mod_exp_simple(r_simple, a, b, m, ctx); - if (ret <= 0) { - printf("BN_mod_exp_simple() problems\n"); - ERR_print_errors(out); - EXIT(1); - } - - ret = BN_mod_exp_mont_consttime(r_mont_const, a, b, m, ctx, NULL); - if (ret <= 0) { - printf("BN_mod_exp_mont_consttime() problems\n"); - ERR_print_errors(out); - EXIT(1); - } - - if (BN_cmp(r_simple, r_mont) == 0 - && BN_cmp(r_simple, r_recp) == 0 - && BN_cmp(r_simple, r_mont_const) == 0) { - printf("."); - fflush(stdout); - } else { - if (BN_cmp(r_simple, r_mont) != 0) - printf("\nsimple and mont results differ\n"); - if (BN_cmp(r_simple, r_mont_const) != 0) - printf("\nsimple and mont const time results differ\n"); - if (BN_cmp(r_simple, r_recp) != 0) - printf("\nsimple and recp results differ\n"); - - printf("a (%3d) = ", BN_num_bits(a)); - BN_print(out, a); - printf("\nb (%3d) = ", BN_num_bits(b)); - BN_print(out, b); - printf("\nm (%3d) = ", BN_num_bits(m)); - BN_print(out, m); - printf("\nsimple ="); - BN_print(out, r_simple); - printf("\nrecp ="); - BN_print(out, r_recp); - printf("\nmont ="); - BN_print(out, r_mont); - printf("\nmont_ct ="); - BN_print(out, r_mont_const); - printf("\n"); - EXIT(1); - } + RAND_bytes(&c, 1); + c = (c % BN_BITS) - BN_BITS2; + BN_rand(a, NUM_BITS + c, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY); + + RAND_bytes(&c, 1); + c = (c % BN_BITS) - BN_BITS2; + BN_rand(b, NUM_BITS + c, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY); + + RAND_bytes(&c, 1); + c = (c % BN_BITS) - BN_BITS2; + BN_rand(m, NUM_BITS + c, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ODD); + + if (!TEST_true(BN_mod(a, a, m, ctx)) + || !TEST_true(BN_mod(b, b, m, ctx)) + || !TEST_true(BN_mod_exp_mont(r_mont, a, b, m, ctx, NULL)) + || !TEST_true(BN_mod_exp_recp(r_recp, a, b, m, ctx)) + || !TEST_true(BN_mod_exp_simple(r_simple, a, b, m, ctx)) + || !TEST_true(BN_mod_exp_mont_consttime(r_mont_const, a, b, m, ctx, NULL))) + goto err; + + if (!TEST_BN_eq(r_simple, r_mont) + || !TEST_BN_eq(r_simple, r_recp) + || !TEST_BN_eq(r_simple, r_mont_const)) { + if (BN_cmp(r_simple, r_mont) != 0) + TEST_info("simple and mont results differ"); + if (BN_cmp(r_simple, r_mont_const) != 0) + TEST_info("simple and mont const time results differ"); + if (BN_cmp(r_simple, r_recp) != 0) + TEST_info("simple and recp results differ"); + + BN_print_var(a); + BN_print_var(b); + BN_print_var(m); + BN_print_var(r_simple); + BN_print_var(r_recp); + BN_print_var(r_mont); + BN_print_var(r_mont_const); + goto err; } + + ret = 1; + err: BN_free(r_mont); BN_free(r_mont_const); BN_free(r_recp); @@ -298,25 +194,12 @@ int main(int argc, char *argv[]) BN_free(b); BN_free(m); BN_CTX_free(ctx); - ERR_remove_thread_state(NULL); -#ifndef OPENSSL_NO_CRYPTO_MDEBUG - if (CRYPTO_mem_leaks(out) <= 0) - goto err; -#endif - BIO_free(out); - printf("\n"); - - if (test_exp_mod_zero() != 0) - goto err; - printf("done\n"); + return ret; +} - EXIT(0); - err: - ERR_load_crypto_strings(); - ERR_print_errors(out); -#ifdef OPENSSL_SYS_NETWARE - printf("ERROR\n"); -#endif - EXIT(1); +void register_tests(void) +{ + ADD_TEST(test_mod_exp_zero); + ADD_ALL_TESTS(test_mod_exp, 200); }