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-rw-r--r--crypto/bn/exptest.c315
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diff --git a/crypto/bn/exptest.c b/crypto/bn/exptest.c
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--- a/crypto/bn/exptest.c
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@@ -1,315 +0,0 @@
-/* crypto/bn/exptest.c */
-/* 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.
- *
- * 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.]
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "../e_os.h"
-
-#include <openssl/bio.h>
-#include <openssl/bn.h>
-#include <openssl/rand.h>
-#include <openssl/err.h>
-
-#define NUM_BITS (BN_BITS*2)
-
-static const char rnd_seed[] =
- "string to make the random number generator think it has entropy";
-
-/*
- * 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) {
- 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");
- return 0;
- }
- return 1;
-}
-
-/*
- * test_exp_mod_zero tests that x**0 mod 1 == 0. It returns zero on success.
- */
-static int test_exp_mod_zero()
-{
- BIGNUM a, p, m;
- BIGNUM r;
- BN_ULONG one_word = 1;
- BN_CTX *ctx = BN_CTX_new();
- int ret = 1, failed = 0;
-
- BN_init(&m);
- BN_one(&m);
-
- BN_init(&a);
- BN_one(&a);
-
- BN_init(&p);
- BN_zero(&p);
-
- BN_init(&r);
-
- if (!BN_rand(&a, 1024, 0, 0))
- goto err;
-
- if (!BN_mod_exp(&r, &a, &p, &m, ctx))
- goto err;
-
- if (!a_is_zero_mod_one("BN_mod_exp", &r, &a))
- failed = 1;
-
- if (!BN_mod_exp_recp(&r, &a, &p, &m, ctx))
- goto err;
-
- if (!a_is_zero_mod_one("BN_mod_exp_recp", &r, &a))
- failed = 1;
-
- if (!BN_mod_exp_simple(&r, &a, &p, &m, ctx))
- goto err;
-
- if (!a_is_zero_mod_one("BN_mod_exp_simple", &r, &a))
- failed = 1;
-
- if (!BN_mod_exp_mont(&r, &a, &p, &m, ctx, NULL))
- goto err;
-
- if (!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)) {
- goto err;
- }
-
- if (!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))
- 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;
- }
-
- ret = failed;
-
- err:
- BN_free(&r);
- BN_free(&a);
- BN_free(&p);
- BN_free(&m);
- BN_CTX_free(ctx);
-
- return ret;
-}
-
-int main(int argc, char *argv[])
-{
- 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;
-
- /*
- * Seed or BN_rand may fail, and we don't even check its return
- * value (which we should)
- */
- RAND_seed(rnd_seed, sizeof(rnd_seed));
-
- 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))
- goto err;
-
- out = BIO_new(BIO_s_file());
-
- if (out == NULL)
- EXIT(1);
- BIO_set_fp(out, stdout, BIO_NOCLOSE);
-
- 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);
- }
- }
- BN_free(r_mont);
- BN_free(r_mont_const);
- BN_free(r_recp);
- BN_free(r_simple);
- BN_free(a);
- BN_free(b);
- BN_free(m);
- BN_CTX_free(ctx);
- ERR_remove_thread_state(NULL);
- CRYPTO_mem_leaks(out);
- BIO_free(out);
- printf("\n");
-
- if (test_exp_mod_zero() != 0)
- goto err;
-
- printf("done\n");
-
- EXIT(0);
- err:
- ERR_load_crypto_strings();
- ERR_print_errors(out);
-#ifdef OPENSSL_SYS_NETWARE
- printf("ERROR\n");
-#endif
- EXIT(1);
- return (1);
-}
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