int pkey_GOST01cp_encrypt (EVP_PKEY_CTX *pctx, unsigned char *out, size_t *out_len, const unsigned char *key,size_t key_len) 
	{
	GOST_KEY_TRANSPORT *gkt=NULL; 
	EVP_PKEY *pubk = EVP_PKEY_CTX_get0_pkey(pctx);
	struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(pctx);
	const struct gost_cipher_info *param=get_encryption_params(NULL);
	unsigned char ukm[8], shared_key[32], crypted_key[44];
	int ret=0;
	int key_is_ephemeral=1;
	gost_ctx cctx;
	EVP_PKEY *sec_key=EVP_PKEY_CTX_get0_peerkey(pctx);
	if (data->shared_ukm) 
		{
		memcpy(ukm, data->shared_ukm,8);
		} 
	else if (out) 
		{
		
		if (RAND_bytes(ukm,8)<=0)
			{
			GOSTerr(GOST_F_PKEY_GOST01CP_ENCRYPT,
				GOST_R_RANDOM_GENERATOR_FAILURE);
			return 0;
			}	
		}	
	/* Check for private key in the peer_key of context */	
	if (sec_key) 
		{
		key_is_ephemeral=0;
		if (!gost_get0_priv_key(sec_key)) 
			{
			GOSTerr(GOST_F_PKEY_GOST01CP_ENCRYPT,
			GOST_R_NO_PRIVATE_PART_OF_NON_EPHEMERAL_KEYPAIR);
			goto err;
			}	
		} 
	else 
		{
		key_is_ephemeral=1;
		if (out) 
			{
			sec_key = EVP_PKEY_new();
			EVP_PKEY_assign(sec_key,EVP_PKEY_base_id(pubk),EC_KEY_new());
			EVP_PKEY_copy_parameters(sec_key,pubk);
			if (!gost2001_keygen(EVP_PKEY_get0(sec_key))) 
				{
				goto err;
				}	
			}
		}
	if (!get_gost_engine_param(GOST_PARAM_CRYPT_PARAMS) && param ==  gost_cipher_list)
		{
		param= gost_cipher_list+1;
		}	
    if (out) 
		{
		VKO_compute_key(shared_key,32,EC_KEY_get0_public_key(EVP_PKEY_get0(pubk)),EVP_PKEY_get0(sec_key),ukm);
		gost_init(&cctx,param->sblock);	
		keyWrapCryptoPro(&cctx,shared_key,ukm,key,crypted_key);
		}
	gkt = GOST_KEY_TRANSPORT_new();
	if (!gkt)
		{
		goto err;
		}	
	if(!ASN1_OCTET_STRING_set(gkt->key_agreement_info->eph_iv,
			ukm,8))
		{
		goto err;
		}	
	if (!ASN1_OCTET_STRING_set(gkt->key_info->imit,crypted_key+40,4))
		{
		goto err;
		}
	if (!ASN1_OCTET_STRING_set(gkt->key_info->encrypted_key,crypted_key+8,32))
		{
		goto err;
		}
	if (key_is_ephemeral) {	
		if (!X509_PUBKEY_set(&gkt->key_agreement_info->ephem_key,out?sec_key:pubk))
			{
			GOSTerr(GOST_F_MAKE_RFC4490_KEYTRANSPORT_2001,
					GOST_R_CANNOT_PACK_EPHEMERAL_KEY);
			goto err;
			}	
	}		
	ASN1_OBJECT_free(gkt->key_agreement_info->cipher);
	gkt->key_agreement_info->cipher = OBJ_nid2obj(param->nid);
	if (key_is_ephemeral && sec_key) EVP_PKEY_free(sec_key);
	if ((*out_len = i2d_GOST_KEY_TRANSPORT(gkt,out?&out:NULL))>0) ret =1;
	GOST_KEY_TRANSPORT_free(gkt);
	return ret;	
	err:		
	if (key_is_ephemeral && sec_key) EVP_PKEY_free(sec_key);
	GOST_KEY_TRANSPORT_free(gkt);
	return -1;
	}