/* $OpenBSD: gostr341001_ameth.c,v 1.19 2021/12/26 15:38:49 tb Exp $ */
/*
 * Copyright (c) 2014 Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
 * Copyright (c) 2005-2006 Cryptocom LTD
 *
 * 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.
 * ====================================================================
 */

#include <string.h>

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_GOST
#include <openssl/bn.h>
#include <openssl/evp.h>
#include <openssl/ec.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/gost.h>


#include "asn1_locl.h"
#include "evp_locl.h"
#include "gost_locl.h"
#include "gost_asn1.h"

static void
pkey_free_gost01(EVP_PKEY *key)
{
        GOST_KEY_free(key->pkey.gost);
}

/*
 * Parses GOST algorithm parameters from X509_ALGOR and
 * modifies pkey setting NID and parameters
 */
static int
decode_gost01_algor_params(EVP_PKEY *pkey, const unsigned char **p, int len)
{
        int param_nid = NID_undef, digest_nid = NID_undef;
        GOST_KEY_PARAMS *gkp = NULL;
        EC_GROUP *group;
        GOST_KEY *ec;

        gkp = d2i_GOST_KEY_PARAMS(NULL, p, len);
        if (gkp == NULL) {
                GOSTerror(GOST_R_BAD_PKEY_PARAMETERS_FORMAT);
                return 0;
        }
        param_nid = OBJ_obj2nid(gkp->key_params);
        digest_nid = OBJ_obj2nid(gkp->hash_params);
        GOST_KEY_PARAMS_free(gkp);

        ec = pkey->pkey.gost;
        if (ec == NULL) {
                ec = GOST_KEY_new();
                if (ec == NULL) {
                        GOSTerror(ERR_R_MALLOC_FAILURE);
                        return 0;
                }
                if (EVP_PKEY_assign_GOST(pkey, ec) == 0)
                        return 0;
        }

        group = EC_GROUP_new_by_curve_name(param_nid);
        if (group == NULL) {
                GOSTerror(EC_R_EC_GROUP_NEW_BY_NAME_FAILURE);
                return 0;
        }
        EC_GROUP_set_asn1_flag(group, OPENSSL_EC_NAMED_CURVE);
        if (GOST_KEY_set_group(ec, group) == 0) {
                EC_GROUP_free(group);
                return 0;
        }
        EC_GROUP_free(group);
        if (GOST_KEY_set_digest(ec, digest_nid) == 0)
                return 0;
        return 1;
}

static ASN1_STRING *
encode_gost01_algor_params(const EVP_PKEY *key)
{
        ASN1_STRING *params = ASN1_STRING_new();
        GOST_KEY_PARAMS *gkp = GOST_KEY_PARAMS_new();
        int pkey_param_nid = NID_undef;

        if (params == NULL || gkp == NULL) {
                GOSTerror(ERR_R_MALLOC_FAILURE);
                ASN1_STRING_free(params);
                params = NULL;
                goto err;
        }

        pkey_param_nid =
            EC_GROUP_get_curve_name(GOST_KEY_get0_group(key->pkey.gost));
        gkp->key_params = OBJ_nid2obj(pkey_param_nid);
        gkp->hash_params = OBJ_nid2obj(GOST_KEY_get_digest(key->pkey.gost));
        /*gkp->cipher_params = OBJ_nid2obj(cipher_param_nid); */
        params->length = i2d_GOST_KEY_PARAMS(gkp, &params->data);
        if (params->length <= 0) {
                GOSTerror(ERR_R_MALLOC_FAILURE);
                ASN1_STRING_free(params);
                params = NULL;
                goto err;
        }
        params->type = V_ASN1_SEQUENCE;
err:
        GOST_KEY_PARAMS_free(gkp);
        return params;
}

static int
pub_cmp_gost01(const EVP_PKEY *a, const EVP_PKEY *b)
{
        const GOST_KEY *ea = a->pkey.gost;
        const GOST_KEY *eb = b->pkey.gost;
        const EC_POINT *ka, *kb;
        int ret = 0;

        if (ea == NULL || eb == NULL)
                return 0;
        ka = GOST_KEY_get0_public_key(ea);
        kb = GOST_KEY_get0_public_key(eb);
        if (ka == NULL || kb == NULL)
                return 0;
        ret = (0 == EC_POINT_cmp(GOST_KEY_get0_group(ea), ka, kb, NULL));
        return ret;
}

static int
pkey_size_gost01(const EVP_PKEY *pk)
{
        if (GOST_KEY_get_digest(pk->pkey.gost) == NID_id_tc26_gost3411_2012_512)
                return 128;
        return 64;
}

static int
pkey_bits_gost01(const EVP_PKEY *pk)
{
        if (GOST_KEY_get_digest(pk->pkey.gost) == NID_id_tc26_gost3411_2012_512)
                return 512;
        return 256;
}

static int
pub_decode_gost01(EVP_PKEY *pk, X509_PUBKEY *pub)
{
        X509_ALGOR *palg = NULL;
        const unsigned char *pubkey_buf = NULL;
        const unsigned char *p;
        ASN1_OBJECT *palgobj = NULL;
        int pub_len;
        BIGNUM *X, *Y;
        ASN1_OCTET_STRING *octet = NULL;
        int len;
        int ret;
        int ptype = V_ASN1_UNDEF;
        ASN1_STRING *pval = NULL;

        if (X509_PUBKEY_get0_param(&palgobj, &pubkey_buf, &pub_len, &palg, pub)
            == 0)
                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;
        }

        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(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(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");
        if (BIO_indent(out, indent + 3, 128) == 0)
                goto err;
        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