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| <pre><span class="sourceLineNo">001</span><a id="line.1">/*</a> |
| <span class="sourceLineNo">002</span><a id="line.2"> * Licensed to the Apache Software Foundation (ASF) under one</a> |
| <span class="sourceLineNo">003</span><a id="line.3"> * or more contributor license agreements. See the NOTICE file</a> |
| <span class="sourceLineNo">004</span><a id="line.4"> * distributed with this work for additional information</a> |
| <span class="sourceLineNo">005</span><a id="line.5"> * regarding copyright ownership. The ASF licenses this file</a> |
| <span class="sourceLineNo">006</span><a id="line.6"> * to you under the Apache License, Version 2.0 (the</a> |
| <span class="sourceLineNo">007</span><a id="line.7"> * "License"); you may not use this file except in compliance</a> |
| <span class="sourceLineNo">008</span><a id="line.8"> * with the License. You may obtain a copy of the License at</a> |
| <span class="sourceLineNo">009</span><a id="line.9"> *</a> |
| <span class="sourceLineNo">010</span><a id="line.10"> * http://www.apache.org/licenses/LICENSE-2.0</a> |
| <span class="sourceLineNo">011</span><a id="line.11"> *</a> |
| <span class="sourceLineNo">012</span><a id="line.12"> * Unless required by applicable law or agreed to in writing,</a> |
| <span class="sourceLineNo">013</span><a id="line.13"> * software distributed under the License is distributed on an</a> |
| <span class="sourceLineNo">014</span><a id="line.14"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</a> |
| <span class="sourceLineNo">015</span><a id="line.15"> * KIND, either express or implied. See the License for the</a> |
| <span class="sourceLineNo">016</span><a id="line.16"> * specific language governing permissions and limitations</a> |
| <span class="sourceLineNo">017</span><a id="line.17"> * under the License.</a> |
| <span class="sourceLineNo">018</span><a id="line.18"> */</a> |
| <span class="sourceLineNo">019</span><a id="line.19">package org.apache.shiro.crypto.hash;</a> |
| <span class="sourceLineNo">020</span><a id="line.20"></a> |
| <span class="sourceLineNo">021</span><a id="line.21">import org.apache.shiro.codec.Base64;</a> |
| <span class="sourceLineNo">022</span><a id="line.22">import org.apache.shiro.codec.Hex;</a> |
| <span class="sourceLineNo">023</span><a id="line.23"></a> |
| <span class="sourceLineNo">024</span><a id="line.24">/**</a> |
| <span class="sourceLineNo">025</span><a id="line.25"> * Generates an SHA-256 Hash from a given input <tt>source</tt> with an optional <tt>salt</tt> and hash iterations.</a> |
| <span class="sourceLineNo">026</span><a id="line.26"> * <p/></a> |
| <span class="sourceLineNo">027</span><a id="line.27"> * See the {@link SimpleHash SimpleHash} parent class JavaDoc for a detailed explanation of Hashing</a> |
| <span class="sourceLineNo">028</span><a id="line.28"> * techniques and how the overloaded constructors function.</a> |
| <span class="sourceLineNo">029</span><a id="line.29"> * <p/></a> |
| <span class="sourceLineNo">030</span><a id="line.30"> * <b>JDK Version Note</b> - Attempting to instantiate this class on JREs prior to version 1.4.0 will throw</a> |
| <span class="sourceLineNo">031</span><a id="line.31"> * an {@link IllegalStateException IllegalStateException}</a> |
| <span class="sourceLineNo">032</span><a id="line.32"> *</a> |
| <span class="sourceLineNo">033</span><a id="line.33"> * @since 0.9</a> |
| <span class="sourceLineNo">034</span><a id="line.34"> */</a> |
| <span class="sourceLineNo">035</span><a id="line.35">public class Sha256Hash extends SimpleHash {</a> |
| <span class="sourceLineNo">036</span><a id="line.36"></a> |
| <span class="sourceLineNo">037</span><a id="line.37"> //TODO - complete JavaDoc</a> |
| <span class="sourceLineNo">038</span><a id="line.38"></a> |
| <span class="sourceLineNo">039</span><a id="line.39"> public static final String ALGORITHM_NAME = "SHA-256";</a> |
| <span class="sourceLineNo">040</span><a id="line.40"></a> |
| <span class="sourceLineNo">041</span><a id="line.41"> public Sha256Hash() {</a> |
| <span class="sourceLineNo">042</span><a id="line.42"> super(ALGORITHM_NAME);</a> |
| <span class="sourceLineNo">043</span><a id="line.43"> }</a> |
| <span class="sourceLineNo">044</span><a id="line.44"></a> |
| <span class="sourceLineNo">045</span><a id="line.45"> public Sha256Hash(Object source) {</a> |
| <span class="sourceLineNo">046</span><a id="line.46"> super(ALGORITHM_NAME, source);</a> |
| <span class="sourceLineNo">047</span><a id="line.47"> }</a> |
| <span class="sourceLineNo">048</span><a id="line.48"></a> |
| <span class="sourceLineNo">049</span><a id="line.49"> public Sha256Hash(Object source, Object salt) {</a> |
| <span class="sourceLineNo">050</span><a id="line.50"> super(ALGORITHM_NAME, source, salt);</a> |
| <span class="sourceLineNo">051</span><a id="line.51"> }</a> |
| <span class="sourceLineNo">052</span><a id="line.52"></a> |
| <span class="sourceLineNo">053</span><a id="line.53"> public Sha256Hash(Object source, Object salt, int hashIterations) {</a> |
| <span class="sourceLineNo">054</span><a id="line.54"> super(ALGORITHM_NAME, source, salt, hashIterations);</a> |
| <span class="sourceLineNo">055</span><a id="line.55"> }</a> |
| <span class="sourceLineNo">056</span><a id="line.56"></a> |
| <span class="sourceLineNo">057</span><a id="line.57"> public static Sha256Hash fromHexString(String hex) {</a> |
| <span class="sourceLineNo">058</span><a id="line.58"> Sha256Hash hash = new Sha256Hash();</a> |
| <span class="sourceLineNo">059</span><a id="line.59"> hash.setBytes(Hex.decode(hex));</a> |
| <span class="sourceLineNo">060</span><a id="line.60"> return hash;</a> |
| <span class="sourceLineNo">061</span><a id="line.61"> }</a> |
| <span class="sourceLineNo">062</span><a id="line.62"></a> |
| <span class="sourceLineNo">063</span><a id="line.63"> public static Sha256Hash fromBase64String(String base64) {</a> |
| <span class="sourceLineNo">064</span><a id="line.64"> Sha256Hash hash = new Sha256Hash();</a> |
| <span class="sourceLineNo">065</span><a id="line.65"> hash.setBytes(Base64.decode(base64));</a> |
| <span class="sourceLineNo">066</span><a id="line.66"> return hash;</a> |
| <span class="sourceLineNo">067</span><a id="line.67"> }</a> |
| <span class="sourceLineNo">068</span><a id="line.68">}</a> |
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