/**
 * Copyright 2017 Google Inc.
 *
 * 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.
 */
/**
 * @fileoverview Abstract cryptographic hash interface.
 *
 * See Sha1 and Md5 for sample implementations.
 *
 */
/**
 * Create a cryptographic hash instance.
 *
 * @constructor
 * @struct
 */
export declare class Hash {
    /**
     * The block size for the hasher.
     * @type {number}
     */
    blockSize: number;
    constructor();
}