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.crypto.hash;
020    
021    import org.apache.shiro.codec.Base64;
022    import org.apache.shiro.codec.Hex;
023    
024    
025    /**
026     * Generates an MD2 Hash (RFC 1319) from a given input <tt>source</tt> with an optional <tt>salt</tt> and
027     * hash iterations.
028     * <p/>
029     * See the {@link SimpleHash SimpleHash} parent class JavaDoc for a detailed explanation of Hashing
030     * techniques and how the overloaded constructors function.
031     *
032     * @since 0.9
033     */
034    public class Md2Hash extends SimpleHash {
035    
036        public static final String ALGORITHM_NAME = "MD2";
037    
038        public Md2Hash() {
039            super(ALGORITHM_NAME);
040        }
041    
042        public Md2Hash(Object source) {
043            super(ALGORITHM_NAME, source);
044        }
045    
046        public Md2Hash(Object source, Object salt) {
047            super(ALGORITHM_NAME, source, salt);
048        }
049    
050        public Md2Hash(Object source, Object salt, int hashIterations) {
051            super(ALGORITHM_NAME, source, salt, hashIterations);
052        }
053    
054        public static Md2Hash fromHexString(String hex) {
055            Md2Hash hash = new Md2Hash();
056            hash.setBytes(Hex.decode(hex));
057            return hash;
058        }
059    
060        public static Md2Hash fromBase64String(String base64) {
061            Md2Hash hash = new Md2Hash();
062            hash.setBytes(Base64.decode(base64));
063            return hash;
064        }
065    }