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 * Generates an SHA-512 Hash from a given input <tt>source</tt> with an optional <tt>salt</tt> and hash iterations.
26 * <p/>
27 * See the {@link SimpleHash SimpleHash} parent class JavaDoc for a detailed explanation of Hashing
28 * techniques and how the overloaded constructors function.
29 * <p/>
30 * <b>JDK Version Note</b> - Attempting to instantiate this class on JREs prior to version 1.4.0 will throw
31 * an {@link IllegalStateException IllegalStateException}
32 *
33 * @since 0.9
34 */
35 public class Sha512Hash extends SimpleHash {
36
37 //TODO - complete JavaDoc
38
39 public static final String ALGORITHM_NAME = "SHA-512";
40
41 public Sha512Hash() {
42 super(ALGORITHM_NAME);
43 }
44
45 public Sha512Hash(Object source) {
46 super(ALGORITHM_NAME, source);
47 }
48
49 public Sha512Hash(Object source, Object salt) {
50 super(ALGORITHM_NAME, source, salt);
51 }
52
53 public Sha512Hash(Object source, Object salt, int hashIterations) {
54 super(ALGORITHM_NAME, source, salt, hashIterations);
55 }
56
57 public static Sha512Hash fromHexString(String hex) {
58 Sha512Hash hash = new Sha512Hash();
59 hash.setBytes(Hex.decode(hex));
60 return hash;
61 }
62
63 public static Sha512Hash fromBase64String(String base64) {
64 Sha512Hash hash = new Sha512Hash();
65 hash.setBytes(Base64.decode(base64));
66 return hash;
67 }
68 }
69