721 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			721 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
/* $OpenBSD: gostr341001_ameth.c,v 1.16 2020/06/05 17:17:22 jsing Exp $ */
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						|
/*
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 * Copyright (c) 2014 Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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 * Copyright (c) 2005-2006 Cryptocom LTD
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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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						|
 *
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 *
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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
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						|
 *    the documentation and/or other materials provided with the
 | 
						|
 *    distribution.
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 *
 | 
						|
 * 3. All advertising materials mentioning features or use of this
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 *    software must display the following acknowledgment:
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 *    "This product includes software developed by the OpenSSL Project
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 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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						|
 *
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 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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 *    endorse or promote products derived from this software without
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 *    prior written permission. For written permission, please contact
 | 
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 *    openssl-core@openssl.org.
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 *
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 * 5. Products derived from this software may not be called "OpenSSL"
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 *    nor may "OpenSSL" appear in their names without prior written
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 *    permission of the OpenSSL Project.
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 *
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 * 6. Redistributions of any form whatsoever must retain the following
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						|
 *    acknowledgment:
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 *    "This product includes software developed by the OpenSSL Project
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 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 | 
						|
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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						|
 * 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;
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						|
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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						|
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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						|
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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						|
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 | 
						|
 * OF THE POSSIBILITY OF SUCH DAMAGE.
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						|
 * ====================================================================
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 */
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#include <string.h>
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						|
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_GOST
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#include <openssl/bn.h>
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#include <openssl/evp.h>
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#include <openssl/ec.h>
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#include <openssl/err.h>
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#include <openssl/x509.h>
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#include <openssl/gost.h>
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#include "asn1_locl.h"
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#include "gost_locl.h"
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#include "gost_asn1.h"
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static void
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pkey_free_gost01(EVP_PKEY *key)
 | 
						|
{
 | 
						|
	GOST_KEY_free(key->pkey.gost);
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						|
}
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						|
 | 
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/*
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						|
 * Parses GOST algorithm parameters from X509_ALGOR and
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						|
 * modifies pkey setting NID and parameters
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 */
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static int
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decode_gost01_algor_params(EVP_PKEY *pkey, const unsigned char **p, int len)
 | 
						|
{
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						|
	int param_nid = NID_undef, digest_nid = NID_undef;
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						|
	GOST_KEY_PARAMS *gkp = NULL;
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						|
	EC_GROUP *group;
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						|
	GOST_KEY *ec;
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						|
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	gkp = d2i_GOST_KEY_PARAMS(NULL, p, len);
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						|
	if (gkp == NULL) {
 | 
						|
		GOSTerror(GOST_R_BAD_PKEY_PARAMETERS_FORMAT);
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						|
		return 0;
 | 
						|
	}
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	param_nid = OBJ_obj2nid(gkp->key_params);
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						|
	digest_nid = OBJ_obj2nid(gkp->hash_params);
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	GOST_KEY_PARAMS_free(gkp);
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						|
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	ec = pkey->pkey.gost;
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						|
	if (ec == NULL) {
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						|
		ec = GOST_KEY_new();
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						|
		if (ec == NULL) {
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						|
			GOSTerror(ERR_R_MALLOC_FAILURE);
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						|
			return 0;
 | 
						|
		}
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		if (EVP_PKEY_assign_GOST(pkey, ec) == 0)
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						|
			return 0;
 | 
						|
	}
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						|
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	group = EC_GROUP_new_by_curve_name(param_nid);
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						|
	if (group == NULL) {
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						|
		GOSTerror(EC_R_EC_GROUP_NEW_BY_NAME_FAILURE);
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						|
		return 0;
 | 
						|
	}
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	EC_GROUP_set_asn1_flag(group, OPENSSL_EC_NAMED_CURVE);
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						|
	if (GOST_KEY_set_group(ec, group) == 0) {
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						|
		EC_GROUP_free(group);
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		return 0;
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						|
	}
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	EC_GROUP_free(group);
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						|
	if (GOST_KEY_set_digest(ec, digest_nid) == 0)
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		return 0;
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	return 1;
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}
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static ASN1_STRING *
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encode_gost01_algor_params(const EVP_PKEY *key)
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						|
{
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	ASN1_STRING *params = ASN1_STRING_new();
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						|
	GOST_KEY_PARAMS *gkp = GOST_KEY_PARAMS_new();
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						|
	int pkey_param_nid = NID_undef;
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						|
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						|
	if (params == NULL || gkp == NULL) {
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		GOSTerror(ERR_R_MALLOC_FAILURE);
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		ASN1_STRING_free(params);
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		params = NULL;
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		goto err;
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	}
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	pkey_param_nid =
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						|
	    EC_GROUP_get_curve_name(GOST_KEY_get0_group(key->pkey.gost));
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						|
	gkp->key_params = OBJ_nid2obj(pkey_param_nid);
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	gkp->hash_params = OBJ_nid2obj(GOST_KEY_get_digest(key->pkey.gost));
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	/*gkp->cipher_params = OBJ_nid2obj(cipher_param_nid); */
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						|
	params->length = i2d_GOST_KEY_PARAMS(gkp, ¶ms->data);
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						|
	if (params->length <= 0) {
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		GOSTerror(ERR_R_MALLOC_FAILURE);
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						|
		ASN1_STRING_free(params);
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						|
		params = NULL;
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						|
		goto err;
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						|
	}
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						|
	params->type = V_ASN1_SEQUENCE;
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						|
err:
 | 
						|
	GOST_KEY_PARAMS_free(gkp);
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						|
	return params;
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						|
}
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						|
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						|
static int
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						|
pub_cmp_gost01(const EVP_PKEY *a, const EVP_PKEY *b)
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						|
{
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						|
	const GOST_KEY *ea = a->pkey.gost;
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						|
	const GOST_KEY *eb = b->pkey.gost;
 | 
						|
	const EC_POINT *ka, *kb;
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						|
	int ret = 0;
 | 
						|
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						|
	if (ea == NULL || eb == NULL)
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						|
		return 0;
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						|
	ka = GOST_KEY_get0_public_key(ea);
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						|
	kb = GOST_KEY_get0_public_key(eb);
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						|
	if (ka == NULL || kb == NULL)
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						|
		return 0;
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						|
	ret = (0 == EC_POINT_cmp(GOST_KEY_get0_group(ea), ka, kb, NULL));
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						|
	return ret;
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						|
}
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						|
static int
 | 
						|
pkey_size_gost01(const EVP_PKEY *pk)
 | 
						|
{
 | 
						|
	if (GOST_KEY_get_digest(pk->pkey.gost) == NID_id_tc26_gost3411_2012_512)
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		return 128;
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						|
	return 64;
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						|
}
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						|
static int
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						|
pkey_bits_gost01(const EVP_PKEY *pk)
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						|
{
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						|
	if (GOST_KEY_get_digest(pk->pkey.gost) == NID_id_tc26_gost3411_2012_512)
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		return 512;
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	return 256;
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}
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						|
static int
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						|
pub_decode_gost01(EVP_PKEY *pk, X509_PUBKEY *pub)
 | 
						|
{
 | 
						|
	X509_ALGOR *palg = NULL;
 | 
						|
	const unsigned char *pubkey_buf = NULL;
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						|
	const unsigned char *p;
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						|
	ASN1_OBJECT *palgobj = NULL;
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						|
	int pub_len;
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						|
	BIGNUM *X, *Y;
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						|
	ASN1_OCTET_STRING *octet = NULL;
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						|
	int len;
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						|
	int ret;
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						|
	int ptype = V_ASN1_UNDEF;
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	ASN1_STRING *pval = NULL;
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						|
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						|
	if (X509_PUBKEY_get0_param(&palgobj, &pubkey_buf, &pub_len, &palg, pub)
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						|
	    == 0)
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		return 0;
 | 
						|
	(void)EVP_PKEY_assign_GOST(pk, NULL);
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	X509_ALGOR_get0(NULL, &ptype, (const void **)&pval, palg);
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						|
	if (ptype != V_ASN1_SEQUENCE) {
 | 
						|
		GOSTerror(GOST_R_BAD_KEY_PARAMETERS_FORMAT);
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						|
		return 0;
 | 
						|
	}
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						|
	p = pval->data;
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						|
	if (decode_gost01_algor_params(pk, &p, pval->length) == 0) {
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						|
		GOSTerror(GOST_R_BAD_KEY_PARAMETERS_FORMAT);
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						|
		return 0;
 | 
						|
	}
 | 
						|
 | 
						|
	octet = d2i_ASN1_OCTET_STRING(NULL, &pubkey_buf, pub_len);
 | 
						|
	if (octet == NULL) {
 | 
						|
		GOSTerror(ERR_R_MALLOC_FAILURE);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	len = octet->length / 2;
 | 
						|
 | 
						|
	X = GOST_le2bn(octet->data, len, NULL);
 | 
						|
	Y = GOST_le2bn(octet->data + len, len, NULL);
 | 
						|
 | 
						|
	ASN1_OCTET_STRING_free(octet);
 | 
						|
 | 
						|
	ret = GOST_KEY_set_public_key_affine_coordinates(pk->pkey.gost, X, Y);
 | 
						|
	if (ret == 0)
 | 
						|
		GOSTerror(ERR_R_EC_LIB);
 | 
						|
 | 
						|
	BN_free(X);
 | 
						|
	BN_free(Y);
 | 
						|
 | 
						|
	return ret;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
pub_encode_gost01(X509_PUBKEY *pub, const EVP_PKEY *pk)
 | 
						|
{
 | 
						|
	ASN1_OBJECT *algobj = NULL;
 | 
						|
	ASN1_OCTET_STRING *octet = NULL;
 | 
						|
	ASN1_STRING *params = NULL;
 | 
						|
	void *pval = NULL;
 | 
						|
	unsigned char *buf = NULL, *sptr;
 | 
						|
	int key_size, ret = 0;
 | 
						|
	const EC_POINT *pub_key;
 | 
						|
	BIGNUM *X = NULL, *Y = NULL;
 | 
						|
	const GOST_KEY *ec = pk->pkey.gost;
 | 
						|
	int ptype = V_ASN1_UNDEF;
 | 
						|
 | 
						|
	algobj = OBJ_nid2obj(GostR3410_get_pk_digest(GOST_KEY_get_digest(ec)));
 | 
						|
	if (pk->save_parameters) {
 | 
						|
		params = encode_gost01_algor_params(pk);
 | 
						|
		if (params == NULL)
 | 
						|
			return 0;
 | 
						|
		pval = params;
 | 
						|
		ptype = V_ASN1_SEQUENCE;
 | 
						|
	}
 | 
						|
 | 
						|
	key_size = GOST_KEY_get_size(ec);
 | 
						|
 | 
						|
	pub_key = GOST_KEY_get0_public_key(ec);
 | 
						|
	if (pub_key == NULL) {
 | 
						|
		GOSTerror(GOST_R_PUBLIC_KEY_UNDEFINED);
 | 
						|
		goto err;
 | 
						|
	}
 | 
						|
 | 
						|
	octet = ASN1_OCTET_STRING_new();
 | 
						|
	if (octet == NULL) {
 | 
						|
		GOSTerror(ERR_R_MALLOC_FAILURE);
 | 
						|
		goto err;
 | 
						|
	}
 | 
						|
 | 
						|
	ret = ASN1_STRING_set(octet, NULL, 2 * key_size);
 | 
						|
	if (ret == 0) {
 | 
						|
		GOSTerror(ERR_R_INTERNAL_ERROR);
 | 
						|
		goto err;
 | 
						|
	}
 | 
						|
 | 
						|
	sptr = ASN1_STRING_data(octet);
 | 
						|
 | 
						|
	X = BN_new();
 | 
						|
	Y = BN_new();
 | 
						|
	if (X == NULL || Y == NULL) {
 | 
						|
		GOSTerror(ERR_R_MALLOC_FAILURE);
 | 
						|
		goto err;
 | 
						|
	}
 | 
						|
 | 
						|
	if (EC_POINT_get_affine_coordinates_GFp(GOST_KEY_get0_group(ec),
 | 
						|
	    pub_key, X, Y, NULL) == 0) {
 | 
						|
		GOSTerror(ERR_R_EC_LIB);
 | 
						|
		goto err;
 | 
						|
	}
 | 
						|
 | 
						|
	GOST_bn2le(X, sptr, key_size);
 | 
						|
	GOST_bn2le(Y, sptr + key_size, key_size);
 | 
						|
 | 
						|
	BN_free(Y);
 | 
						|
	BN_free(X);
 | 
						|
 | 
						|
	ret = i2d_ASN1_OCTET_STRING(octet, &buf);
 | 
						|
	ASN1_BIT_STRING_free(octet);
 | 
						|
	if (ret < 0)
 | 
						|
		return 0;
 | 
						|
 | 
						|
	return X509_PUBKEY_set0_param(pub, algobj, ptype, pval, buf, ret);
 | 
						|
 | 
						|
err:
 | 
						|
	BN_free(Y);
 | 
						|
	BN_free(X);
 | 
						|
	ASN1_BIT_STRING_free(octet);
 | 
						|
	ASN1_STRING_free(params);
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
param_print_gost01(BIO *out, const EVP_PKEY *pkey, int indent, ASN1_PCTX *pctx)
 | 
						|
{
 | 
						|
	int param_nid =
 | 
						|
	    EC_GROUP_get_curve_name(GOST_KEY_get0_group(pkey->pkey.gost));
 | 
						|
 | 
						|
	if (BIO_indent(out, indent, 128) == 0)
 | 
						|
		return 0;
 | 
						|
	BIO_printf(out, "Parameter set: %s\n", OBJ_nid2ln(param_nid));
 | 
						|
	if (BIO_indent(out, indent, 128) == 0)
 | 
						|
		return 0;
 | 
						|
	BIO_printf(out, "Digest Algorithm: %s\n",
 | 
						|
	    OBJ_nid2ln(GOST_KEY_get_digest(pkey->pkey.gost)));
 | 
						|
	return 1;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
pub_print_gost01(BIO *out, const EVP_PKEY *pkey, int indent, ASN1_PCTX *pctx)
 | 
						|
{
 | 
						|
	BN_CTX *ctx = BN_CTX_new();
 | 
						|
	BIGNUM *X, *Y;
 | 
						|
	const EC_POINT *pubkey;
 | 
						|
	const EC_GROUP *group;
 | 
						|
 | 
						|
	if (ctx == NULL) {
 | 
						|
		GOSTerror(ERR_R_MALLOC_FAILURE);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	BN_CTX_start(ctx);
 | 
						|
	if ((X = BN_CTX_get(ctx)) == NULL)
 | 
						|
		goto err;
 | 
						|
	if ((Y = BN_CTX_get(ctx)) == NULL)
 | 
						|
		goto err;
 | 
						|
	pubkey = GOST_KEY_get0_public_key(pkey->pkey.gost);
 | 
						|
	group = GOST_KEY_get0_group(pkey->pkey.gost);
 | 
						|
	if (EC_POINT_get_affine_coordinates_GFp(group, pubkey, X, Y,
 | 
						|
	    ctx) == 0) {
 | 
						|
		GOSTerror(ERR_R_EC_LIB);
 | 
						|
		goto err;
 | 
						|
	}
 | 
						|
	if (BIO_indent(out, indent, 128) == 0)
 | 
						|
		goto err;
 | 
						|
	BIO_printf(out, "Public key:\n");
 | 
						|
	if (BIO_indent(out, indent + 3, 128) == 0)
 | 
						|
		goto err;
 | 
						|
	BIO_printf(out, "X:");
 | 
						|
	BN_print(out, X);
 | 
						|
	BIO_printf(out, "\n");
 | 
						|
	BIO_indent(out, indent + 3, 128);
 | 
						|
	BIO_printf(out, "Y:");
 | 
						|
	BN_print(out, Y);
 | 
						|
	BIO_printf(out, "\n");
 | 
						|
 | 
						|
	BN_CTX_end(ctx);
 | 
						|
	BN_CTX_free(ctx);
 | 
						|
 | 
						|
	return param_print_gost01(out, pkey, indent, pctx);
 | 
						|
 | 
						|
err:
 | 
						|
	BN_CTX_end(ctx);
 | 
						|
	BN_CTX_free(ctx);
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
priv_print_gost01(BIO *out, const EVP_PKEY *pkey, int indent, ASN1_PCTX *pctx)
 | 
						|
{
 | 
						|
	const BIGNUM *key;
 | 
						|
 | 
						|
	if (BIO_indent(out, indent, 128) == 0)
 | 
						|
		return 0;
 | 
						|
	BIO_printf(out, "Private key: ");
 | 
						|
	key = GOST_KEY_get0_private_key(pkey->pkey.gost);
 | 
						|
	if (key == NULL)
 | 
						|
		BIO_printf(out, "<undefined)");
 | 
						|
	else
 | 
						|
		BN_print(out, key);
 | 
						|
	BIO_printf(out, "\n");
 | 
						|
 | 
						|
	return pub_print_gost01(out, pkey, indent, pctx);
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
priv_decode_gost01(EVP_PKEY *pk, const PKCS8_PRIV_KEY_INFO *p8inf)
 | 
						|
{
 | 
						|
	const unsigned char *pkey_buf = NULL, *p = NULL;
 | 
						|
	int priv_len = 0;
 | 
						|
	BIGNUM *pk_num = NULL;
 | 
						|
	int ret = 0;
 | 
						|
	const X509_ALGOR *palg = NULL;
 | 
						|
	const ASN1_OBJECT *palg_obj = NULL;
 | 
						|
	ASN1_INTEGER *priv_key = NULL;
 | 
						|
	GOST_KEY *ec;
 | 
						|
	int ptype = V_ASN1_UNDEF;
 | 
						|
	ASN1_STRING *pval = NULL;
 | 
						|
 | 
						|
	if (PKCS8_pkey_get0(&palg_obj, &pkey_buf, &priv_len, &palg, p8inf) == 0) {
 | 
						|
		GOSTerror(GOST_R_BAD_KEY_PARAMETERS_FORMAT);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	(void)EVP_PKEY_assign_GOST(pk, NULL);
 | 
						|
	X509_ALGOR_get0(NULL, &ptype, (const void **)&pval, palg);
 | 
						|
	if (ptype != V_ASN1_SEQUENCE) {
 | 
						|
		GOSTerror(GOST_R_BAD_KEY_PARAMETERS_FORMAT);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	p = pval->data;
 | 
						|
	if (decode_gost01_algor_params(pk, &p, pval->length) == 0) {
 | 
						|
		GOSTerror(GOST_R_BAD_KEY_PARAMETERS_FORMAT);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	p = pkey_buf;
 | 
						|
	if (V_ASN1_OCTET_STRING == *p) {
 | 
						|
		/* New format - Little endian octet string */
 | 
						|
		ASN1_OCTET_STRING *s =
 | 
						|
		    d2i_ASN1_OCTET_STRING(NULL, &p, priv_len);
 | 
						|
 | 
						|
		if (s == NULL) {
 | 
						|
			GOSTerror(EVP_R_DECODE_ERROR);
 | 
						|
			ASN1_STRING_free(s);
 | 
						|
			return 0;
 | 
						|
		}
 | 
						|
 | 
						|
		pk_num = GOST_le2bn(s->data, s->length, NULL);
 | 
						|
		ASN1_STRING_free(s);
 | 
						|
	} else {
 | 
						|
		priv_key = d2i_ASN1_INTEGER(NULL, &p, priv_len);
 | 
						|
		if (priv_key == NULL)
 | 
						|
			return 0;
 | 
						|
		ret = ((pk_num = ASN1_INTEGER_to_BN(priv_key, NULL)) != NULL);
 | 
						|
		ASN1_INTEGER_free(priv_key);
 | 
						|
		if (ret == 0) {
 | 
						|
			GOSTerror(EVP_R_DECODE_ERROR);
 | 
						|
			return 0;
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	ec = pk->pkey.gost;
 | 
						|
	if (ec == NULL) {
 | 
						|
		ec = GOST_KEY_new();
 | 
						|
		if (ec == NULL) {
 | 
						|
			BN_free(pk_num);
 | 
						|
			return 0;
 | 
						|
		}
 | 
						|
		if (EVP_PKEY_assign_GOST(pk, ec) == 0) {
 | 
						|
			BN_free(pk_num);
 | 
						|
			GOST_KEY_free(ec);
 | 
						|
			return 0;
 | 
						|
		}
 | 
						|
	}
 | 
						|
	if (GOST_KEY_set_private_key(ec, pk_num) == 0) {
 | 
						|
		BN_free(pk_num);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	ret = 0;
 | 
						|
	if (EVP_PKEY_missing_parameters(pk) == 0)
 | 
						|
		ret = gost2001_compute_public(ec) != 0;
 | 
						|
	BN_free(pk_num);
 | 
						|
 | 
						|
	return ret;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
priv_encode_gost01(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk)
 | 
						|
{
 | 
						|
	ASN1_OBJECT *algobj =
 | 
						|
	    OBJ_nid2obj(GostR3410_get_pk_digest(GOST_KEY_get_digest(pk->pkey.gost)));
 | 
						|
	ASN1_STRING *params = encode_gost01_algor_params(pk);
 | 
						|
	unsigned char *priv_buf = NULL;
 | 
						|
	int priv_len;
 | 
						|
	ASN1_INTEGER *asn1key = NULL;
 | 
						|
 | 
						|
	if (params == NULL)
 | 
						|
		return 0;
 | 
						|
 | 
						|
	asn1key = BN_to_ASN1_INTEGER(GOST_KEY_get0_private_key(pk->pkey.gost),
 | 
						|
	    NULL);
 | 
						|
	if (asn1key == NULL) {
 | 
						|
		ASN1_STRING_free(params);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	priv_len = i2d_ASN1_INTEGER(asn1key, &priv_buf);
 | 
						|
	ASN1_INTEGER_free(asn1key);
 | 
						|
	return PKCS8_pkey_set0(p8, algobj, 0, V_ASN1_SEQUENCE, params, priv_buf,
 | 
						|
	    priv_len);
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
param_encode_gost01(const EVP_PKEY *pkey, unsigned char **pder)
 | 
						|
{
 | 
						|
	ASN1_STRING *params = encode_gost01_algor_params(pkey);
 | 
						|
	int len;
 | 
						|
 | 
						|
	if (params == NULL)
 | 
						|
		return 0;
 | 
						|
	len = params->length;
 | 
						|
	if (pder != NULL)
 | 
						|
		memcpy(*pder, params->data, params->length);
 | 
						|
	ASN1_STRING_free(params);
 | 
						|
	return len;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
param_decode_gost01(EVP_PKEY *pkey, const unsigned char **pder, int derlen)
 | 
						|
{
 | 
						|
	ASN1_OBJECT *obj = NULL;
 | 
						|
	int nid;
 | 
						|
	GOST_KEY *ec;
 | 
						|
	EC_GROUP *group;
 | 
						|
	int ret;
 | 
						|
 | 
						|
	/* New format */
 | 
						|
	if ((V_ASN1_SEQUENCE | V_ASN1_CONSTRUCTED) == **pder)
 | 
						|
		return decode_gost01_algor_params(pkey, pder, derlen);
 | 
						|
 | 
						|
	/* Compatibility */
 | 
						|
	if (d2i_ASN1_OBJECT(&obj, pder, derlen) == NULL) {
 | 
						|
		GOSTerror(ERR_R_MALLOC_FAILURE);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	nid = OBJ_obj2nid(obj);
 | 
						|
	ASN1_OBJECT_free(obj);
 | 
						|
 | 
						|
	ec = GOST_KEY_new();
 | 
						|
	if (ec == NULL) {
 | 
						|
		GOSTerror(ERR_R_MALLOC_FAILURE);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	group = EC_GROUP_new_by_curve_name(nid);
 | 
						|
	if (group == NULL) {
 | 
						|
		GOSTerror(EC_R_EC_GROUP_NEW_BY_NAME_FAILURE);
 | 
						|
		GOST_KEY_free(ec);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
 | 
						|
	EC_GROUP_set_asn1_flag(group, OPENSSL_EC_NAMED_CURVE);
 | 
						|
	if (GOST_KEY_set_group(ec, group) == 0) {
 | 
						|
		GOSTerror(ERR_R_EC_LIB);
 | 
						|
		EC_GROUP_free(group);
 | 
						|
		GOST_KEY_free(ec);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	EC_GROUP_free(group);
 | 
						|
	if (GOST_KEY_set_digest(ec,
 | 
						|
	    NID_id_GostR3411_94_CryptoProParamSet) == 0) {
 | 
						|
		GOSTerror(GOST_R_INVALID_DIGEST_TYPE);
 | 
						|
		GOST_KEY_free(ec);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	ret = EVP_PKEY_assign_GOST(pkey, ec);
 | 
						|
	if (ret == 0)
 | 
						|
		GOST_KEY_free(ec);
 | 
						|
	return ret;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
param_missing_gost01(const EVP_PKEY *pk)
 | 
						|
{
 | 
						|
	const GOST_KEY *ec = pk->pkey.gost;
 | 
						|
 | 
						|
	if (ec == NULL)
 | 
						|
		return 1;
 | 
						|
	if (GOST_KEY_get0_group(ec) == NULL)
 | 
						|
		return 1;
 | 
						|
	if (GOST_KEY_get_digest(ec) == NID_undef)
 | 
						|
		return 1;
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
param_copy_gost01(EVP_PKEY *to, const EVP_PKEY *from)
 | 
						|
{
 | 
						|
	GOST_KEY *eto = to->pkey.gost;
 | 
						|
	const GOST_KEY *efrom = from->pkey.gost;
 | 
						|
	int ret = 1;
 | 
						|
 | 
						|
	if (EVP_PKEY_base_id(from) != EVP_PKEY_base_id(to)) {
 | 
						|
		GOSTerror(GOST_R_INCOMPATIBLE_ALGORITHMS);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	if (efrom == NULL) {
 | 
						|
		GOSTerror(GOST_R_KEY_PARAMETERS_MISSING);
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
	if (eto == NULL) {
 | 
						|
		eto = GOST_KEY_new();
 | 
						|
		if (eto == NULL) {
 | 
						|
			GOSTerror(ERR_R_MALLOC_FAILURE);
 | 
						|
			return 0;
 | 
						|
		}
 | 
						|
		if (EVP_PKEY_assign(to, EVP_PKEY_base_id(from), eto) == 0) {
 | 
						|
			GOST_KEY_free(eto);
 | 
						|
			return 0;
 | 
						|
		}
 | 
						|
	}
 | 
						|
	GOST_KEY_set_group(eto, GOST_KEY_get0_group(efrom));
 | 
						|
	GOST_KEY_set_digest(eto, GOST_KEY_get_digest(efrom));
 | 
						|
	if (GOST_KEY_get0_private_key(eto) != NULL)
 | 
						|
		ret = gost2001_compute_public(eto);
 | 
						|
 | 
						|
	return ret;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
param_cmp_gost01(const EVP_PKEY *a, const EVP_PKEY *b)
 | 
						|
{
 | 
						|
	if (EC_GROUP_get_curve_name(GOST_KEY_get0_group(a->pkey.gost)) !=
 | 
						|
	    EC_GROUP_get_curve_name(GOST_KEY_get0_group(b->pkey.gost)))
 | 
						|
		return 0;
 | 
						|
 | 
						|
	if (GOST_KEY_get_digest(a->pkey.gost) !=
 | 
						|
	    GOST_KEY_get_digest(b->pkey.gost))
 | 
						|
		return 0;
 | 
						|
 | 
						|
	return 1;
 | 
						|
}
 | 
						|
 | 
						|
static int
 | 
						|
pkey_ctrl_gost01(EVP_PKEY *pkey, int op, long arg1, void *arg2)
 | 
						|
{
 | 
						|
	X509_ALGOR *alg1 = NULL, *alg2 = NULL, *alg3 = NULL;
 | 
						|
	int digest = GOST_KEY_get_digest(pkey->pkey.gost);
 | 
						|
 | 
						|
	switch (op) {
 | 
						|
	case ASN1_PKEY_CTRL_PKCS7_SIGN:
 | 
						|
		if (arg1 == 0)
 | 
						|
			PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2);
 | 
						|
		break;
 | 
						|
 | 
						|
	case ASN1_PKEY_CTRL_PKCS7_ENCRYPT:
 | 
						|
		if (arg1 == 0)
 | 
						|
			PKCS7_RECIP_INFO_get0_alg(arg2, &alg3);
 | 
						|
		break;
 | 
						|
	case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
 | 
						|
		*(int *)arg2 = GostR3410_get_md_digest(digest);
 | 
						|
		return 2;
 | 
						|
 | 
						|
	default:
 | 
						|
		return -2;
 | 
						|
	}
 | 
						|
 | 
						|
	if (alg1)
 | 
						|
		X509_ALGOR_set0(alg1, OBJ_nid2obj(GostR3410_get_md_digest(digest)), V_ASN1_NULL, 0);
 | 
						|
	if (alg2)
 | 
						|
		X509_ALGOR_set0(alg2, OBJ_nid2obj(GostR3410_get_pk_digest(digest)), V_ASN1_NULL, 0);
 | 
						|
	if (alg3) {
 | 
						|
		ASN1_STRING *params = encode_gost01_algor_params(pkey);
 | 
						|
		if (params == NULL) {
 | 
						|
			return -1;
 | 
						|
		}
 | 
						|
		X509_ALGOR_set0(alg3,
 | 
						|
		    OBJ_nid2obj(GostR3410_get_pk_digest(digest)),
 | 
						|
		    V_ASN1_SEQUENCE, params);
 | 
						|
	}
 | 
						|
 | 
						|
	return 1;
 | 
						|
}
 | 
						|
 | 
						|
const EVP_PKEY_ASN1_METHOD gostr01_asn1_meths[] = {
 | 
						|
	{
 | 
						|
		.pkey_id = EVP_PKEY_GOSTR01,
 | 
						|
		.pkey_base_id = EVP_PKEY_GOSTR01,
 | 
						|
		.pkey_flags = ASN1_PKEY_SIGPARAM_NULL,
 | 
						|
 | 
						|
		.pem_str = "GOST2001",
 | 
						|
		.info = "GOST R 34.10-2001",
 | 
						|
 | 
						|
		.pkey_free = pkey_free_gost01,
 | 
						|
		.pkey_ctrl = pkey_ctrl_gost01,
 | 
						|
 | 
						|
		.priv_decode = priv_decode_gost01,
 | 
						|
		.priv_encode = priv_encode_gost01,
 | 
						|
		.priv_print = priv_print_gost01,
 | 
						|
 | 
						|
		.param_decode = param_decode_gost01,
 | 
						|
		.param_encode = param_encode_gost01,
 | 
						|
		.param_missing = param_missing_gost01,
 | 
						|
		.param_copy = param_copy_gost01,
 | 
						|
		.param_cmp = param_cmp_gost01,
 | 
						|
		.param_print = param_print_gost01,
 | 
						|
 | 
						|
		.pub_decode = pub_decode_gost01,
 | 
						|
		.pub_encode = pub_encode_gost01,
 | 
						|
		.pub_cmp = pub_cmp_gost01,
 | 
						|
		.pub_print = pub_print_gost01,
 | 
						|
		.pkey_size = pkey_size_gost01,
 | 
						|
		.pkey_bits = pkey_bits_gost01,
 | 
						|
	},
 | 
						|
	{
 | 
						|
		.pkey_id = EVP_PKEY_GOSTR12_256,
 | 
						|
		.pkey_base_id = EVP_PKEY_GOSTR01,
 | 
						|
		.pkey_flags = ASN1_PKEY_ALIAS
 | 
						|
	},
 | 
						|
	{
 | 
						|
		.pkey_id = EVP_PKEY_GOSTR12_512,
 | 
						|
		.pkey_base_id = EVP_PKEY_GOSTR01,
 | 
						|
		.pkey_flags = ASN1_PKEY_ALIAS
 | 
						|
	},
 | 
						|
};
 | 
						|
 | 
						|
#endif
 |