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242 lines
7.3 KiB
C
242 lines
7.3 KiB
C
/* 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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