| <!DOCTYPE HTML> |
| <html lang="fr"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <main role="main"> |
| <div class="sourceContainer"> |
| <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;</a> |
| <span class="sourceLineNo">020</span><a id="line.20"></a> |
| <span class="sourceLineNo">021</span><a id="line.21">/**</a> |
| <span class="sourceLineNo">022</span><a id="line.22"> * A cipher <a href="http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation">mode of operation</a></a> |
| <span class="sourceLineNo">023</span><a id="line.23"> * directs a cipher algorithm how to convert data during the encryption or decryption process. This enum represents</a> |
| <span class="sourceLineNo">024</span><a id="line.24"> * all JDK-standard Cipher operation mode names as defined in</a> |
| <span class="sourceLineNo">025</span><a id="line.25"> * <a href="http://java.sun.com/javase/6/docs/technotes/guides/security/StandardNames.html">JDK Security Standard</a> |
| <span class="sourceLineNo">026</span><a id="line.26"> * Names</a>, as well as a few more that are well-known and supported by other JCA Providers.</a> |
| <span class="sourceLineNo">027</span><a id="line.27"> * <p/></a> |
| <span class="sourceLineNo">028</span><a id="line.28"> * This {@code enum} exists to provide Shiro end-users type-safety when declaring an operation mode. This helps reduce</a> |
| <span class="sourceLineNo">029</span><a id="line.29"> * error by providing a compile-time mechanism to specify a mode and guarantees a valid name that will be</a> |
| <span class="sourceLineNo">030</span><a id="line.30"> * recognized by an underlying JCA Provider.</a> |
| <span class="sourceLineNo">031</span><a id="line.31"> * <h2>Standard or Non-Standard?</h2></a> |
| <span class="sourceLineNo">032</span><a id="line.32"> * All modes listed specify whether they are a JDK standard mode or a non-standard mode. Standard modes are included</a> |
| <span class="sourceLineNo">033</span><a id="line.33"> * in all JDK distributions. Non-standard modes can</a> |
| <span class="sourceLineNo">034</span><a id="line.34"> * sometimes result in better performance or more secure output, but may not be available on the target JDK</a> |
| <span class="sourceLineNo">035</span><a id="line.35"> * platform and rely on an external JCA Provider to be installed. Some providers</a> |
| <span class="sourceLineNo">036</span><a id="line.36"> * (like <a href="http://www.bouncycastle.org">Bouncy Castle</a>) may support these modes however.</a> |
| <span class="sourceLineNo">037</span><a id="line.37"> *</a> |
| <span class="sourceLineNo">038</span><a id="line.38"> * @see <a href="http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation">Block Cipher Modes of Operation<a/></a> |
| <span class="sourceLineNo">039</span><a id="line.39"> * @since 1.0</a> |
| <span class="sourceLineNo">040</span><a id="line.40"> */</a> |
| <span class="sourceLineNo">041</span><a id="line.41">public enum OperationMode {</a> |
| <span class="sourceLineNo">042</span><a id="line.42"></a> |
| <span class="sourceLineNo">043</span><a id="line.43"> /**</a> |
| <span class="sourceLineNo">044</span><a id="line.44"> * <a href="http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29"></a> |
| <span class="sourceLineNo">045</span><a id="line.45"> * Cipher-block Chaining</a> mode, defined in <a href="http://csrc.nist.gov/publications/fips/index.html">FIPS</a> |
| <span class="sourceLineNo">046</span><a id="line.46"> * PUB 81</a>.</a> |
| <span class="sourceLineNo">047</span><a id="line.47"> * <p/></a> |
| <span class="sourceLineNo">048</span><a id="line.48"> * This is a standard JDK operation mode and should be supported by all JDK environments.</a> |
| <span class="sourceLineNo">049</span><a id="line.49"> */</a> |
| <span class="sourceLineNo">050</span><a id="line.50"> CBC,</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"> * <a href="http://en.wikipedia.org/wiki/CCM_mode">Counter with CBC-MAC</a> mode<b>*</b> - for block ciphers with</a> |
| <span class="sourceLineNo">054</span><a id="line.54"> * 128 bit block-size only. See <a href="http://www.ietf.org/rfc/rfc3610.txt">RFC 3610</a> for AES Ciphers.</a> |
| <span class="sourceLineNo">055</span><a id="line.55"> * This mode has essentially been replaced by the more-capable {@link #EAX EAX} mode.</a> |
| <span class="sourceLineNo">056</span><a id="line.56"> * <p/></a> |
| <span class="sourceLineNo">057</span><a id="line.57"> * <b>*THIS IS A NON-STANDARD MODE</b>. It is not guaranteed to be supported across JDK installations. You must</a> |
| <span class="sourceLineNo">058</span><a id="line.58"> * ensure you have a JCA Provider that can support this cipher operation mode.</a> |
| <span class="sourceLineNo">059</span><a id="line.59"> * <a href="http://www.bouncycastle.org">Bouncy Castle</a> <em>may</em> be one such provider.</a> |
| <span class="sourceLineNo">060</span><a id="line.60"> */</a> |
| <span class="sourceLineNo">061</span><a id="line.61"> CCM,</a> |
| <span class="sourceLineNo">062</span><a id="line.62"></a> |
| <span class="sourceLineNo">063</span><a id="line.63"> /**</a> |
| <span class="sourceLineNo">064</span><a id="line.64"> * <a href="http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29">Cipher</a> |
| <span class="sourceLineNo">065</span><a id="line.65"> * Feedback<a/> mode, defined in <a href="http://csrc.nist.gov/publications/fips/index.html">FIPS PUB 81</a>.</a> |
| <span class="sourceLineNo">066</span><a id="line.66"> * <p/></a> |
| <span class="sourceLineNo">067</span><a id="line.67"> * This is a standard JDK operation mode and should be supported by all JDK environments.</a> |
| <span class="sourceLineNo">068</span><a id="line.68"> */</a> |
| <span class="sourceLineNo">069</span><a id="line.69"> CFB,</a> |
| <span class="sourceLineNo">070</span><a id="line.70"></a> |
| <span class="sourceLineNo">071</span><a id="line.71"> /**</a> |
| <span class="sourceLineNo">072</span><a id="line.72"> * <a href="http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29">Counter Mode</a>, aka</a> |
| <span class="sourceLineNo">073</span><a id="line.73"> * Integer Counter Mode (ICM) and Segmented Integer Counter (SIC). Counter is a simplification of {@link #OFB OFB}</a> |
| <span class="sourceLineNo">074</span><a id="line.74"> * and updates the input block as a counter.</a> |
| <span class="sourceLineNo">075</span><a id="line.75"> * <p/></a> |
| <span class="sourceLineNo">076</span><a id="line.76"> * This is a standard JDK operation mode and should be supported by all JDK environments.</a> |
| <span class="sourceLineNo">077</span><a id="line.77"> */</a> |
| <span class="sourceLineNo">078</span><a id="line.78"> CTR,</a> |
| <span class="sourceLineNo">079</span><a id="line.79"></a> |
| <span class="sourceLineNo">080</span><a id="line.80"> /**</a> |
| <span class="sourceLineNo">081</span><a id="line.81"> * <a href="http://en.wikipedia.org/wiki/EAX_mode">EAX Mode</a><b>*</b>. This is a patent-free but less-effecient</a> |
| <span class="sourceLineNo">082</span><a id="line.82"> * alternative to {@link #OCB OCB} and has capabilities beyond what {@link #CCM CCM} can provide.</a> |
| <span class="sourceLineNo">083</span><a id="line.83"> * <p/></a> |
| <span class="sourceLineNo">084</span><a id="line.84"> * <b>*THIS IS A NON-STANDARD MODE</b>. It is not guaranteed to be supported across JDK installations. You must</a> |
| <span class="sourceLineNo">085</span><a id="line.85"> * ensure you have a JCA Provider that can support this cipher operation mode.</a> |
| <span class="sourceLineNo">086</span><a id="line.86"> * <a href="http://www.bouncycastle.org">Bouncy Castle</a> <em>may</em> be one such provider.</a> |
| <span class="sourceLineNo">087</span><a id="line.87"> */</a> |
| <span class="sourceLineNo">088</span><a id="line.88"> EAX,</a> |
| <span class="sourceLineNo">089</span><a id="line.89"></a> |
| <span class="sourceLineNo">090</span><a id="line.90"> /**</a> |
| <span class="sourceLineNo">091</span><a id="line.91"> * <a href="http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29">Electronic</a> |
| <span class="sourceLineNo">092</span><a id="line.92"> * Codebook</a> mode, defined in <a href="http://csrc.nist.gov/publications/fips/index.html">FIPS PUB 81</a>.</a> |
| <span class="sourceLineNo">093</span><a id="line.93"> * ECB is the only mode that does <em>not</em> require an Initialization Vector, but because of this, can be seen</a> |
| <span class="sourceLineNo">094</span><a id="line.94"> * as less secure than operation modes that require an IV.</a> |
| <span class="sourceLineNo">095</span><a id="line.95"> * <p/></a> |
| <span class="sourceLineNo">096</span><a id="line.96"> * This is a standard JDK operation mode and should be supported by all JDK environments.</a> |
| <span class="sourceLineNo">097</span><a id="line.97"> */</a> |
| <span class="sourceLineNo">098</span><a id="line.98"> ECB,</a> |
| <span class="sourceLineNo">099</span><a id="line.99"></a> |
| <span class="sourceLineNo">100</span><a id="line.100"> /**</a> |
| <span class="sourceLineNo">101</span><a id="line.101"> * <a href="http://en.wikipedia.org/wiki/GCM_mode">Galois/Counter</a> mode<b>*</b> - for block ciphers with 128</a> |
| <span class="sourceLineNo">102</span><a id="line.102"> * bit block-size only.</a> |
| <span class="sourceLineNo">103</span><a id="line.103"> * <p/></a> |
| <span class="sourceLineNo">104</span><a id="line.104"> * <b>*THIS IS A NON-STANDARD MODE</b>. It is not guaranteed to be supported across JDK installations. You must</a> |
| <span class="sourceLineNo">105</span><a id="line.105"> * ensure you have a JCA Provider that can support this cipher operation mode.</a> |
| <span class="sourceLineNo">106</span><a id="line.106"> * <a href="http://www.bouncycastle.org">Bouncy Castle</a> <em>may</em> be one such provider.</a> |
| <span class="sourceLineNo">107</span><a id="line.107"> */</a> |
| <span class="sourceLineNo">108</span><a id="line.108"> GCM,</a> |
| <span class="sourceLineNo">109</span><a id="line.109"></a> |
| <span class="sourceLineNo">110</span><a id="line.110"> /**</a> |
| <span class="sourceLineNo">111</span><a id="line.111"> * No mode.</a> |
| <span class="sourceLineNo">112</span><a id="line.112"> * <p/></a> |
| <span class="sourceLineNo">113</span><a id="line.113"> * This is a standard JDK operation mode and should be supported by all JDK environments.</a> |
| <span class="sourceLineNo">114</span><a id="line.114"> */</a> |
| <span class="sourceLineNo">115</span><a id="line.115"> NONE,</a> |
| <span class="sourceLineNo">116</span><a id="line.116"></a> |
| <span class="sourceLineNo">117</span><a id="line.117"> /**</a> |
| <span class="sourceLineNo">118</span><a id="line.118"> * <a href="http://en.wikipedia.org/wiki/OCB_mode">Offset Codebook</a> mode<b>*</b>. Parallel mode that provides</a> |
| <span class="sourceLineNo">119</span><a id="line.119"> * both message privacy and authenticity in a single pass. This is a very efficient mode, but is patent-encumbered.</a> |
| <span class="sourceLineNo">120</span><a id="line.120"> * A less-efficient (two pass) alternative is available by using {@link #EAX EAX} mode.</a> |
| <span class="sourceLineNo">121</span><a id="line.121"> * <p/></a> |
| <span class="sourceLineNo">122</span><a id="line.122"> * <b>*THIS IS A NON-STANDARD MODE</b>. It is not guaranteed to be supported across JDK installations. You must</a> |
| <span class="sourceLineNo">123</span><a id="line.123"> * ensure you have a JCA Provider that can support this cipher operation mode.</a> |
| <span class="sourceLineNo">124</span><a id="line.124"> * <a href="http://www.bouncycastle.org">Bouncy Castle</a> <em>may</em> be one such provider.</a> |
| <span class="sourceLineNo">125</span><a id="line.125"> */</a> |
| <span class="sourceLineNo">126</span><a id="line.126"> OCB,</a> |
| <span class="sourceLineNo">127</span><a id="line.127"></a> |
| <span class="sourceLineNo">128</span><a id="line.128"> /**</a> |
| <span class="sourceLineNo">129</span><a id="line.129"> * <a href="http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29">Output</a> |
| <span class="sourceLineNo">130</span><a id="line.130"> * Feedback</a> mode, defined in <a href="http://csrc.nist.gov/publications/fips/index.html">FIPS PUB 81</a>.</a> |
| <span class="sourceLineNo">131</span><a id="line.131"> * <p/></a> |
| <span class="sourceLineNo">132</span><a id="line.132"> * This is a standard JDK operation mode and should be supported by all JDK environments.</a> |
| <span class="sourceLineNo">133</span><a id="line.133"> */</a> |
| <span class="sourceLineNo">134</span><a id="line.134"> OFB,</a> |
| <span class="sourceLineNo">135</span><a id="line.135"></a> |
| <span class="sourceLineNo">136</span><a id="line.136"> /**</a> |
| <span class="sourceLineNo">137</span><a id="line.137"> * <a href="http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Propagating_cipher-block_chaining_.28PCBC.29"></a> |
| <span class="sourceLineNo">138</span><a id="line.138"> * Propagating Cipher Block Chaining</a> mode, defined in <a href="http://web.mit.edu/kerberos/">Kerberos version 4<a/>.</a> |
| <span class="sourceLineNo">139</span><a id="line.139"> * <p/></a> |
| <span class="sourceLineNo">140</span><a id="line.140"> * This is a standard JDK operation mode and should be supported by all JDK environments.</a> |
| <span class="sourceLineNo">141</span><a id="line.141"> */</a> |
| <span class="sourceLineNo">142</span><a id="line.142"> PCBC</a> |
| <span class="sourceLineNo">143</span><a id="line.143">}</a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
