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/* crypto/ecdh/ecdhtest.c */
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
*
* The Elliptic Curve Public-Key Crypto Library (ECC Code) included
* herein is developed by SUN MICROSYSTEMS, INC., and is contributed
* to the OpenSSL project.
*
* The ECC Code is licensed pursuant to the OpenSSL open source
* license provided below.
*
* The ECDH software is originally written by Douglas Stebila of
* Sun Microsystems Laboratories.
*
*/
/* ====================================================================
* Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
*
* 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 above 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 acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../e_os.h"
#include <openssl/crypto.h>
#include <openssl/bio.h>
#include <openssl/bn.h>
#include <openssl/ec.h>
#include <openssl/objects.h>
#include <openssl/rand.h>
#include <openssl/sha.h>
#include <openssl/err.h>
#ifdef OPENSSL_NO_ECDH
int main(int argc, char *argv[])
{
printf("No ECDH support\n");
return(0);
}
#else
#include <openssl/ecdh.h>
#ifdef OPENSSL_SYS_WIN16
#define MS_CALLBACK _far _loadds
#else
#define MS_CALLBACK
#endif
#if 0
static void MS_CALLBACK cb(int p, int n, void *arg);
#endif
static const char rnd_seed[] = "string to make the random number generator think it has entropy";
static const int KDF1_SHA1_len = 20;
static void *KDF1_SHA1(const void *in, size_t inlen, void *out, size_t *outlen)
{
#ifndef OPENSSL_NO_SHA
if (*outlen < SHA_DIGEST_LENGTH)
return NULL;
else
*outlen = SHA_DIGEST_LENGTH;
return SHA1(in, inlen, out);
#else
return NULL;
#endif
}
int test_ecdh_curve(int , char *, BN_CTX *, BIO *);
int test_ecdh_curve(int nid, char *text, BN_CTX *ctx, BIO *out)
{
EC_KEY *a=NULL;
EC_KEY *b=NULL;
BIGNUM *x_a=NULL, *y_a=NULL,
*x_b=NULL, *y_b=NULL;
char buf[12];
unsigned char *abuf=NULL,*bbuf=NULL;
int i,alen,blen,aout,bout,ret=0;
if ((a=EC_KEY_new()) == NULL) goto err;
if ((a->group=EC_GROUP_new_by_nid(nid)) == NULL) goto err;
if ((b=EC_KEY_new()) == NULL) goto err;
b->group = a->group;
if ((x_a=BN_new()) == NULL) goto err;
if ((y_a=BN_new()) == NULL) goto err;
if ((x_b=BN_new()) == NULL) goto err;
if ((y_b=BN_new()) == NULL) goto err;
BIO_puts(out,"Testing key generation with ");
BIO_puts(out,text);
#ifdef NOISY
BIO_puts(out,"\n");
#else
BIO_flush(out);
#endif
if (!EC_KEY_generate_key(a)) goto err;
if (EC_METHOD_get_field_type(EC_GROUP_method_of(a->group)) == NID_X9_62_prime_field)
{
if (!EC_POINT_get_affine_coordinates_GFp(a->group, a->pub_key, x_a, y_a, ctx)) goto err;
}
else
{
if (!EC_POINT_get_affine_coordinates_GF2m(a->group, a->pub_key, x_a, y_a, ctx)) goto err;
}
#ifdef NOISY
BIO_puts(out," pri 1=");
BN_print(out,a->priv_key);
BIO_puts(out,"\n pub 1=");
BN_print(out,x_a);
BIO_puts(out,",");
BN_print(out,y_a);
BIO_puts(out,"\n");
#else
BIO_printf(out," .");
BIO_flush(out);
#endif
if (!EC_KEY_generate_key(b)) goto err;
if (EC_METHOD_get_field_type(EC_GROUP_method_of(b->group)) == NID_X9_62_prime_field)
{
if (!EC_POINT_get_affine_coordinates_GFp(b->group, b->pub_key, x_b, y_b, ctx)) goto err;
}
else
{
if (!EC_POINT_get_affine_coordinates_GF2m(a->group, b->pub_key, x_b, y_b, ctx)) goto err;
}
#ifdef NOISY
BIO_puts(out," pri 2=");
BN_print(out,b->priv_key);
BIO_puts(out,"\n pub 2=");
BN_print(out,x_b);
BIO_puts(out,",");
BN_print(out,y_b);
BIO_puts(out,"\n");
#else
BIO_printf(out,".");
BIO_flush(out);
#endif
alen=KDF1_SHA1_len;
abuf=(unsigned char *)OPENSSL_malloc(alen);
aout=ECDH_compute_key(abuf,alen,b->pub_key,a,KDF1_SHA1);
#ifdef NOISY
BIO_puts(out," key1 =");
for (i=0; i<aout; i++)
{
sprintf(buf,"%02X",abuf[i]);
BIO_puts(out,buf);
}
BIO_puts(out,"\n");
#else
BIO_printf(out,".");
BIO_flush(out);
#endif
blen=KDF1_SHA1_len;
bbuf=(unsigned char *)OPENSSL_malloc(blen);
bout=ECDH_compute_key(bbuf,blen,a->pub_key,b,KDF1_SHA1);
#ifdef NOISY
BIO_puts(out," key2 =");
for (i=0; i<bout; i++)
{
sprintf(buf,"%02X",bbuf[i]);
BIO_puts(out,buf);
}
BIO_puts(out,"\n");
#else
BIO_printf(out,".");
BIO_flush(out);
#endif
if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0))
{
#ifndef NOISY
BIO_printf(out, " failed\n\n");
BIO_printf(out, "key a:\n");
BIO_printf(out, "private key: ");
BN_print(out, a->priv_key);
BIO_printf(out, "\n");
BIO_printf(out, "public key (x,y): ");
BN_print(out, x_a);
BIO_printf(out, ",");
BN_print(out, y_a);
BIO_printf(out, "\nkey b:\n");
BIO_printf(out, "private key: ");
BN_print(out, b->priv_key);
BIO_printf(out, "\n");
BIO_printf(out, "public key (x,y): ");
BN_print(out, x_b);
BIO_printf(out, ",");
BN_print(out, y_b);
BIO_printf(out, "\n");
BIO_printf(out, "generated key a: ");
for (i=0; i<bout; i++)
{
sprintf(buf, "%02X", bbuf[i]);
BIO_puts(out, buf);
}
BIO_printf(out, "\n");
BIO_printf(out, "generated key b: ");
for (i=0; i<aout; i++)
{
sprintf(buf, "%02X", abuf[i]);
BIO_puts(out,buf);
}
BIO_printf(out, "\n");
#endif
fprintf(stderr,"Error in ECDH routines\n");
ret=0;
}
else
{
#ifndef NOISY
BIO_printf(out, " ok\n");
#endif
ret=1;
}
err:
ERR_print_errors_fp(stderr);
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