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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.shiro.crypto.hash;
20  
21  import org.apache.shiro.codec.Base64;
22  import org.apache.shiro.codec.Hex;
23  
24  
25  /**
26   * Generates an MD2 Hash (RFC 1319) from a given input <tt>source</tt> with an optional <tt>salt</tt> and
27   * hash iterations.
28   * <p/>
29   * See the {@link SimpleHash SimpleHash} parent class JavaDoc for a detailed explanation of Hashing
30   * techniques and how the overloaded constructors function.
31   *
32   * @since 0.9
33   */
34  public class Md2Hash extends SimpleHash {
35  
36      public static final String ALGORITHM_NAME = "MD2";
37  
38      public Md2Hash() {
39          super(ALGORITHM_NAME);
40      }
41  
42      public Md2Hash(Object source) {
43          super(ALGORITHM_NAME, source);
44      }
45  
46      public Md2Hash(Object source, Object salt) {
47          super(ALGORITHM_NAME, source, salt);
48      }
49  
50      public Md2Hash(Object source, Object salt, int hashIterations) {
51          super(ALGORITHM_NAME, source, salt, hashIterations);
52      }
53  
54      public static Md2Hash fromHexString(String hex) {
55          Md2Hash hash = new Md2Hash();
56          hash.setBytes(Hex.decode(hex));
57          return hash;
58      }
59  
60      public static Md2Hash fromBase64String(String base64) {
61          Md2Hash hash = new Md2Hash();
62          hash.setBytes(Base64.decode(base64));
63          return hash;
64      }
65  }