/*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you 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.

  */

 package org.apache.shiro.crypto.hash;

 import org.apache.shiro.crypto.RandomNumberGenerator;

 import org.apache.shiro.util.ByteSource;

 /**

  * A {@code HashService} that allows configuration of its strategy via JavaBeans-compatible setter methods.

  *

  * @since 1.2

  */

 public interface ConfigurableHashService extends HashService {

     /**

      * Sets the 'private' (internal) salt to be paired with a 'public' (random or supplied) salt during hash computation.

      *

      * @param privateSalt the 'private' internal salt to be paired with a 'public' (random or supplied) salt during

      *                    hash computation.

      */

     void setPrivateSalt(ByteSource privateSalt);

     /**

      * Sets the number of hash iterations that will be performed during hash computation.

      *

      * @param iterations the number of hash iterations that will be performed during hash computation.

      */

     void setHashIterations(int iterations);

     /**

      * Sets the name of the {@link java.security.MessageDigest MessageDigest} algorithm that will be used to compute

      * hashes.

      *

      * @param name the name of the {@link java.security.MessageDigest MessageDigest} algorithm that will be used to

      *             compute hashes.

      */

     void setHashAlgorithmName(String name);

     /**

      * Sets a source of randomness used to generate public salts that will in turn be used during hash computation.

      *

      * @param rng a source of randomness used to generate public salts that will in turn be used during hash computation.

      */

     void setRandomNumberGenerator(RandomNumberGenerator rng);

 }