<?php
/**
 * Copyright 2015 OpenStack Foundation
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/

namespace jwa\cryptographic_algorithms;

use jwa\cryptographic_algorithms\exceptions\InvalidKeyTypeAlgorithmException;
use security\Key;

/**
 * Interface EncryptionAlgorithm
 * @package jwa\cryptographic_algorithms
 */
interface EncryptionAlgorithm extends HashFunctionAlgorithm {

    /**
     * @param Key $key
     * @param $message
     * @return string
     * @throws InvalidKeyTypeAlgorithmException
     */
    public function encrypt(Key $key, $message);

    /**
     * @param Key $key
     * @param string $enc_message
     * @return string
     */
    public function decrypt(Key $key, $enc_message);
}