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241 lines
7.3 KiB
241 lines
7.3 KiB
/* crypto/dh/dhtest.c */ |
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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* All rights reserved. |
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* |
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* This package is an SSL implementation written |
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* by Eric Young (eay@cryptsoft.com). |
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* The implementation was written so as to conform with Netscapes SSL. |
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* |
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* This library is free for commercial and non-commercial use as long as |
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* the following conditions are aheared to. The following conditions |
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* apply to all code found in this distribution, be it the RC4, RSA, |
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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* included with this distribution is covered by the same copyright terms |
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* except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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* |
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* Copyright remains Eric Young's, and as such any Copyright notices in |
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* the code are not to be removed. |
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* If this package is used in a product, Eric Young should be given attribution |
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* as the author of the parts of the library used. |
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* This can be in the form of a textual message at program startup or |
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* in documentation (online or textual) provided with the package. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* "This product includes cryptographic software written by |
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* Eric Young (eay@cryptsoft.com)" |
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* The word 'cryptographic' can be left out if the rouines from the library |
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* being used are not cryptographic related :-). |
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* 4. If you include any Windows specific code (or a derivative thereof) from |
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* the apps directory (application code) you must include an acknowledgement: |
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* The licence and distribution terms for any publically available version or |
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* derivative of this code cannot be changed. i.e. this code cannot simply be |
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* copied and put under another distribution licence |
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* [including the GNU Public Licence.] |
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*/ |
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/* |
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* Until the key-gen callbacks are modified to use newer prototypes, we allow |
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* deprecated functions for openssl-internal code |
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*/ |
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#ifdef OPENSSL_NO_DEPRECATED |
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# undef OPENSSL_NO_DEPRECATED |
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#endif |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "../e_os.h" |
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#include <openssl/crypto.h> |
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#include <openssl/bio.h> |
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#include <openssl/bn.h> |
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#include <openssl/rand.h> |
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#include <openssl/err.h> |
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#ifdef OPENSSL_NO_DH |
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int main(int argc, char *argv[]) |
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{ |
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printf("No DH support\n"); |
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return (0); |
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} |
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#else |
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# include <openssl/dh.h> |
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# ifdef OPENSSL_SYS_WIN16 |
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# define MS_CALLBACK _far _loadds |
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# else |
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# define MS_CALLBACK |
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# endif |
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static int MS_CALLBACK cb(int p, int n, BN_GENCB *arg); |
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static const char rnd_seed[] = |
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"string to make the random number generator think it has entropy"; |
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int main(int argc, char *argv[]) |
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{ |
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BN_GENCB _cb; |
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DH *a; |
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DH *b = NULL; |
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char buf[12]; |
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unsigned char *abuf = NULL, *bbuf = NULL; |
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int i, alen, blen, aout, bout, ret = 1; |
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BIO *out; |
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CRYPTO_malloc_debug_init(); |
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CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL); |
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CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); |
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# ifdef OPENSSL_SYS_WIN32 |
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CRYPTO_malloc_init(); |
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# endif |
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RAND_seed(rnd_seed, sizeof rnd_seed); |
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out = BIO_new(BIO_s_file()); |
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if (out == NULL) |
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EXIT(1); |
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BIO_set_fp(out, stdout, BIO_NOCLOSE); |
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BN_GENCB_set(&_cb, &cb, out); |
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if (((a = DH_new()) == NULL) || !DH_generate_parameters_ex(a, 64, |
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DH_GENERATOR_5, |
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&_cb)) |
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goto err; |
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if (!DH_check(a, &i)) |
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goto err; |
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if (i & DH_CHECK_P_NOT_PRIME) |
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BIO_puts(out, "p value is not prime\n"); |
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if (i & DH_CHECK_P_NOT_SAFE_PRIME) |
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BIO_puts(out, "p value is not a safe prime\n"); |
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if (i & DH_UNABLE_TO_CHECK_GENERATOR) |
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BIO_puts(out, "unable to check the generator value\n"); |
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if (i & DH_NOT_SUITABLE_GENERATOR) |
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BIO_puts(out, "the g value is not a generator\n"); |
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BIO_puts(out, "\np ="); |
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BN_print(out, a->p); |
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BIO_puts(out, "\ng ="); |
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BN_print(out, a->g); |
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BIO_puts(out, "\n"); |
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b = DH_new(); |
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if (b == NULL) |
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goto err; |
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b->p = BN_dup(a->p); |
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b->g = BN_dup(a->g); |
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if ((b->p == NULL) || (b->g == NULL)) |
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goto err; |
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/* Set a to run with normal modexp and b to use constant time */ |
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a->flags &= ~DH_FLAG_NO_EXP_CONSTTIME; |
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b->flags |= DH_FLAG_NO_EXP_CONSTTIME; |
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if (!DH_generate_key(a)) |
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goto err; |
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BIO_puts(out, "pri 1="); |
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BN_print(out, a->priv_key); |
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BIO_puts(out, "\npub 1="); |
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BN_print(out, a->pub_key); |
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BIO_puts(out, "\n"); |
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if (!DH_generate_key(b)) |
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goto err; |
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BIO_puts(out, "pri 2="); |
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BN_print(out, b->priv_key); |
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BIO_puts(out, "\npub 2="); |
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BN_print(out, b->pub_key); |
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BIO_puts(out, "\n"); |
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alen = DH_size(a); |
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abuf = (unsigned char *)OPENSSL_malloc(alen); |
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aout = DH_compute_key(abuf, b->pub_key, a); |
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BIO_puts(out, "key1 ="); |
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for (i = 0; i < aout; i++) { |
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sprintf(buf, "%02X", abuf[i]); |
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BIO_puts(out, buf); |
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} |
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BIO_puts(out, "\n"); |
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blen = DH_size(b); |
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bbuf = (unsigned char *)OPENSSL_malloc(blen); |
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bout = DH_compute_key(bbuf, a->pub_key, b); |
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BIO_puts(out, "key2 ="); |
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for (i = 0; i < bout; i++) { |
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sprintf(buf, "%02X", bbuf[i]); |
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BIO_puts(out, buf); |
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} |
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BIO_puts(out, "\n"); |
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if ((aout < 4) || (bout != aout) || (memcmp(abuf, bbuf, aout) != 0)) { |
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fprintf(stderr, "Error in DH routines\n"); |
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ret = 1; |
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} else |
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ret = 0; |
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err: |
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ERR_print_errors_fp(stderr); |
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if (abuf != NULL) |
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OPENSSL_free(abuf); |
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if (bbuf != NULL) |
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OPENSSL_free(bbuf); |
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if (b != NULL) |
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DH_free(b); |
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if (a != NULL) |
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DH_free(a); |
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BIO_free(out); |
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# ifdef OPENSSL_SYS_NETWARE |
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if (ret) |
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printf("ERROR: %d\n", ret); |
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# endif |
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EXIT(ret); |
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return (ret); |
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} |
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static int MS_CALLBACK cb(int p, int n, BN_GENCB *arg) |
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{ |
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char c = '*'; |
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if (p == 0) |
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c = '.'; |
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if (p == 1) |
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c = '+'; |
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if (p == 2) |
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c = '*'; |
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if (p == 3) |
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c = '\n'; |
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BIO_write(arg->arg, &c, 1); |
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(void)BIO_flush(arg->arg); |
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# ifdef LINT |
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p = n; |
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# endif |
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return 1; |
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} |
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#endif
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