001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    package org.apache.shiro.authc.credential;
020    
021    import org.apache.shiro.crypto.hash.AbstractHash;
022    import org.apache.shiro.crypto.hash.Hash;
023    import org.apache.shiro.crypto.hash.Sha512Hash;
024    
025    
026    /**
027     * <tt>HashedCredentialsMatcher</tt> implementation that expects the stored <tt>AuthenticationInfo</tt> credentials to be
028     * SHA-512 hashed.
029     *
030     * @author Les Hazlewood
031     * @since 0.9
032     */
033    public class Sha512CredentialsMatcher extends HashedCredentialsMatcher {
034    
035        /**
036         * Creates a new <em>uninitialized</em> {@link Sha512Hash Sha512Hash} instance, without it's byte array set.
037         *
038         * @return a new <em>uninitialized</em> {@link org.apache.shiro.crypto.hash.Sha512Hash Sha512Hash} instance, without it's byte array set.
039         */
040        protected AbstractHash newHashInstance() {
041            return new Sha512Hash();
042        }
043    
044        /**
045         * This implementation merely returns
046         * <code>new {@link Sha512Hash#Sha512Hash(Object, Object, int) Sha512Hash(credentials,salt,hashIterations)}</code>.
047         */
048        protected Hash hashProvidedCredentials(Object credentials, Object salt, int hashIterations) {
049            return new Sha512Hash(credentials, salt, hashIterations);
050        }
051    }