/* 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/opensslconf.h>	/* for OPENSSL_NO_ECDH */#include <openssl/crypto.h>#include <openssl/bio.h>#include <openssl/bn.h>#include <openssl/objects.h>#include <openssl/rand.h>#include <openssl/sha.h>#include <openssl/err.h>#ifdef OPENSSL_NO_ECDHint main(int argc, char *argv[]){    printf("No ECDH support\n");    return(0);}#else#include <openssl/ec.h>#include <openssl/ecdh.h>#ifdef OPENSSL_SYS_WIN16#define MS_CALLBACK	_far _loadds#else#define MS_CALLBACK#endif#if 0static void MS_CALLBACK cb(int p, int n, void *arg);#endifstatic 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	}static int test_ecdh_curve(int nid, const 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;	const EC_GROUP *group;	a = EC_KEY_new_by_curve_name(nid);	b = EC_KEY_new_by_curve_name(nid);	if (a == NULL || b == NULL)		goto err;	group = EC_KEY_get0_group(a);	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	(void)BIO_flush(out);#endif	if (!EC_KEY_generate_key(a)) goto err;		if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field) 		{		if (!EC_POINT_get_affine_coordinates_GFp(group,			EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;		}	else		{		if (!EC_POINT_get_affine_coordinates_GF2m(group,			EC_KEY_get0_public_key(a), 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," .");	(void)BIO_flush(out);#endif	if (!EC_KEY_generate_key(b)) goto err;	if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field) 		{		if (!EC_POINT_get_affine_coordinates_GFp(group, 			EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;		}	else		{		if (!EC_POINT_get_affine_coordinates_GF2m(group, 			EC_KEY_get0_public_key(b), 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,".");	(void)BIO_flush(out);#endif	alen=KDF1_SHA1_len;	abuf=(unsigned char *)OPENSSL_malloc(alen);	aout=ECDH_compute_key(abuf,alen,EC_KEY_get0_public_key(b),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,".");	(void)BIO_flush(out);#endif	blen=KDF1_SHA1_len;	bbuf=(unsigned char *)OPENSSL_malloc(blen);	bout=ECDH_compute_key(bbuf,blen,EC_KEY_get0_public_key(a),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,".");	(void)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, EC_KEY_get0_private_key(a));		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, EC_KEY_get0_private_key(b));		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);	if (abuf != NULL) OPENSSL_free(abuf);	if (bbuf != NULL) OPENSSL_free(bbuf);	if (x_a) BN_free(x_a);	if (y_a) BN_free(y_a);	if (x_b) BN_free(x_b);	if (y_b) BN_free(y_b);	if (b) EC_KEY_free(b);	if (a) EC_KEY_free(a);	return(ret);	}int main(int argc, char *argv[])	{	BN_CTX *ctx=NULL;	int ret=1;	BIO *out;	CRYPTO_malloc_debug_init();	CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);	CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);#ifdef OPENSSL_SYS_WIN32	CRYPTO_malloc_init();#endif	RAND_seed(rnd_seed, sizeof rnd_seed);	out=BIO_new(BIO_s_file());	if (out == NULL) EXIT(1);	BIO_set_fp(out,stdout,BIO_NOCLOSE);	if ((ctx=BN_CTX_new()) == NULL) goto err;	/* NIST PRIME CURVES TESTS */	if (!test_ecdh_curve(NID_X9_62_prime192v1, "NIST Prime-Curve P-192", ctx, out)) goto err;	if (!test_ecdh_curve(NID_secp224r1, "NIST Prime-Curve P-224", ctx, out)) goto err;	if (!test_ecdh_curve(NID_X9_62_prime256v1, "NIST Prime-Curve P-256", ctx, out)) goto err;	if (!test_ecdh_curve(NID_secp384r1, "NIST Prime-Curve P-384", ctx, out)) goto err;	if (!test_ecdh_curve(NID_secp521r1, "NIST Prime-Curve P-521", ctx, out)) goto err;	/* NIST BINARY CURVES TESTS */	if (!test_ecdh_curve(NID_sect163k1, "NIST Binary-Curve K-163", ctx, out)) goto err;	if (!test_ecdh_curve(NID_sect163r2, "NIST Binary-Curve B-163", ctx, out)) goto err;	if (!test_ecdh_curve(NID_sect233k1, "NIST Binary-Curve K-233", ctx, out)) goto err;	if (!test_ecdh_curve(NID_sect233r1, "NIST Binary-Curve B-233", ctx, out)) goto err;	if (!test_ecdh_curve(NID_sect283k1, "NIST Binary-Curve K-283", ctx, out)) goto err;	if (!test_ecdh_curve(NID_sect283r1, "NIST Binary-Curve B-283", ctx, out)) goto err;	if (!test_ecdh_curve(NID_sect409k1, "NIST Binary-Curve K-409", ctx, out)) goto err;	if (!test_ecdh_curve(NID_sect409r1, "NIST Binary-Curve B-409", ctx, out)) goto err;	if (!test_ecdh_curve(NID_sect571k1, "NIST Binary-Curve K-571", ctx, out)) goto err;	if (!test_ecdh_curve(NID_sect571r1, "NIST Binary-Curve B-571", ctx, out)) goto err;	ret = 0;err:	ERR_print_errors_fp(stderr);	if (ctx) BN_CTX_free(ctx);	BIO_free(out);	CRYPTO_cleanup_all_ex_data();	ERR_remove_state(0);	CRYPTO_mem_leaks_fp(stderr);	EXIT(ret);	return(ret);	}#if 0static void MS_CALLBACK cb(int p, int n, void *arg)	{	char c='*';	if (p == 0) c='.';	if (p == 1) c='+';	if (p == 2) c='*';	if (p == 3) c='\n';	BIO_write((BIO *)arg,&c,1);	(void)BIO_flush((BIO *)arg);#ifdef LINT	p=n;#endif	}#endif#endif