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Posted to notifications@commons.apache.org by tv...@apache.org on 2022/02/13 16:24:15 UTC
svn commit: r1078377 [7/7] - in /websites/production/commons/content/proper/commons-jcs: ./ commons-jcs3-core/ commons-jcs3-core/apidocs/org/apache/commons/jcs3/utils/serialization/ commons-jcs3-core/apidocs/org/apache/commons/jcs3/utils/serialization/...
Added: websites/production/commons/content/proper/commons-jcs/xref/org/apache/commons/jcs3/utils/serialization/EncryptingSerializer.html
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--- websites/production/commons/content/proper/commons-jcs/xref/org/apache/commons/jcs3/utils/serialization/EncryptingSerializer.html (added)
+++ websites/production/commons/content/proper/commons-jcs/xref/org/apache/commons/jcs3/utils/serialization/EncryptingSerializer.html Sun Feb 13 16:24:15 2022
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+<title>EncryptingSerializer xref</title>
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+<div id="overview"><a href="../../../../../../../apidocs/org/apache/commons/jcs3/utils/serialization/EncryptingSerializer.html">View Javadoc</a></div><pre>
+<a class="jxr_linenumber" name="L1" href="#L1">1</a> <strong class="jxr_keyword">package</strong> org.apache.commons.jcs3.utils.serialization;
+<a class="jxr_linenumber" name="L2" href="#L2">2</a>
+<a class="jxr_linenumber" name="L3" href="#L3">3</a> <em class="jxr_comment">/*</em>
+<a class="jxr_linenumber" name="L4" href="#L4">4</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
+<a class="jxr_linenumber" name="L5" href="#L5">5</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em>
+<a class="jxr_linenumber" name="L6" href="#L6">6</a> <em class="jxr_comment"> * distributed with this work for additional information</em>
+<a class="jxr_linenumber" name="L7" href="#L7">7</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em>
+<a class="jxr_linenumber" name="L8" href="#L8">8</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em>
+<a class="jxr_linenumber" name="L9" href="#L9">9</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em>
+<a class="jxr_linenumber" name="L10" href="#L10">10</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em>
+<a class="jxr_linenumber" name="L11" href="#L11">11</a> <em class="jxr_comment"> *</em>
+<a class="jxr_linenumber" name="L12" href="#L12">12</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
+<a class="jxr_linenumber" name="L13" href="#L13">13</a> <em class="jxr_comment"> *</em>
+<a class="jxr_linenumber" name="L14" href="#L14">14</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em>
+<a class="jxr_linenumber" name="L15" href="#L15">15</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em>
+<a class="jxr_linenumber" name="L16" href="#L16">16</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em>
+<a class="jxr_linenumber" name="L17" href="#L17">17</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em>
+<a class="jxr_linenumber" name="L18" href="#L18">18</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em>
+<a class="jxr_linenumber" name="L19" href="#L19">19</a> <em class="jxr_comment"> * under the License.</em>
+<a class="jxr_linenumber" name="L20" href="#L20">20</a> <em class="jxr_comment"> */</em>
+<a class="jxr_linenumber" name="L21" href="#L21">21</a>
+<a class="jxr_linenumber" name="L22" href="#L22">22</a> <strong class="jxr_keyword">import</strong> java.io.IOException;
+<a class="jxr_linenumber" name="L23" href="#L23">23</a> <strong class="jxr_keyword">import</strong> java.nio.ByteBuffer;
+<a class="jxr_linenumber" name="L24" href="#L24">24</a> <strong class="jxr_keyword">import</strong> java.security.InvalidAlgorithmParameterException;
+<a class="jxr_linenumber" name="L25" href="#L25">25</a> <strong class="jxr_keyword">import</strong> java.security.InvalidKeyException;
+<a class="jxr_linenumber" name="L26" href="#L26">26</a> <strong class="jxr_keyword">import</strong> java.security.NoSuchAlgorithmException;
+<a class="jxr_linenumber" name="L27" href="#L27">27</a> <strong class="jxr_keyword">import</strong> java.security.SecureRandom;
+<a class="jxr_linenumber" name="L28" href="#L28">28</a> <strong class="jxr_keyword">import</strong> java.security.spec.InvalidKeySpecException;
+<a class="jxr_linenumber" name="L29" href="#L29">29</a>
+<a class="jxr_linenumber" name="L30" href="#L30">30</a> <strong class="jxr_keyword">import</strong> javax.crypto.BadPaddingException;
+<a class="jxr_linenumber" name="L31" href="#L31">31</a> <strong class="jxr_keyword">import</strong> javax.crypto.Cipher;
+<a class="jxr_linenumber" name="L32" href="#L32">32</a> <strong class="jxr_keyword">import</strong> javax.crypto.IllegalBlockSizeException;
+<a class="jxr_linenumber" name="L33" href="#L33">33</a> <strong class="jxr_keyword">import</strong> javax.crypto.NoSuchPaddingException;
+<a class="jxr_linenumber" name="L34" href="#L34">34</a> <strong class="jxr_keyword">import</strong> javax.crypto.SecretKey;
+<a class="jxr_linenumber" name="L35" href="#L35">35</a> <strong class="jxr_keyword">import</strong> javax.crypto.SecretKeyFactory;
+<a class="jxr_linenumber" name="L36" href="#L36">36</a> <strong class="jxr_keyword">import</strong> javax.crypto.spec.GCMParameterSpec;
+<a class="jxr_linenumber" name="L37" href="#L37">37</a> <strong class="jxr_keyword">import</strong> javax.crypto.spec.PBEKeySpec;
+<a class="jxr_linenumber" name="L38" href="#L38">38</a> <strong class="jxr_keyword">import</strong> javax.crypto.spec.SecretKeySpec;
+<a class="jxr_linenumber" name="L39" href="#L39">39</a>
+<a class="jxr_linenumber" name="L40" href="#L40">40</a> <strong class="jxr_keyword">import</strong> org.apache.commons.jcs3.engine.behavior.IElementSerializer;
+<a class="jxr_linenumber" name="L41" href="#L41">41</a>
+<a class="jxr_linenumber" name="L42" href="#L42">42</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="L43" href="#L43">43</a> <em class="jxr_javadoccomment"> * Performs serialization and de-serialization. It encrypts and decrypts the</em>
+<a class="jxr_linenumber" name="L44" href="#L44">44</a> <em class="jxr_javadoccomment"> * value.</em>
+<a class="jxr_linenumber" name="L45" href="#L45">45</a> <em class="jxr_javadoccomment"> *</em>
+<a class="jxr_linenumber" name="L46" href="#L46">46</a> <em class="jxr_javadoccomment"> * @since 3.1</em>
+<a class="jxr_linenumber" name="L47" href="#L47">47</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="L48" href="#L48">48</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a name="EncryptingSerializer" href="../../../../../../org/apache/commons/jcs3/utils/serialization/EncryptingSerializer.html#EncryptingSerializer">EncryptingSerializer</a> <strong class="jxr_keyword">extends</strong> <a name="StandardSerializer" href="../../../../../../org/apache/commons/jcs3/utils/serialization/StandardSerializer.html#StandardSerializer">StandardSerializer</a>
+<a class="jxr_linenumber" name="L49" href="#L49">49</a> {
+<a class="jxr_linenumber" name="L50" href="#L50">50</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String DEFAULT_SECRET_KEY_ALGORITHM = <span class="jxr_string">"PBKDF2WithHmacSHA256"</span>;
+<a class="jxr_linenumber" name="L51" href="#L51">51</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String DEFAULT_CIPHER = <span class="jxr_string">"AES/ECB/PKCS5Padding"</span>;
+<a class="jxr_linenumber" name="L52" href="#L52">52</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> KEYHASH_ITERATION_COUNT = 1000;
+<a class="jxr_linenumber" name="L53" href="#L53">53</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> KEY_LENGTH = 256;
+<a class="jxr_linenumber" name="L54" href="#L54">54</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> TAG_LENGTH = 128;
+<a class="jxr_linenumber" name="L55" href="#L55">55</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> IV_LENGTH = 12;
+<a class="jxr_linenumber" name="L56" href="#L56">56</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> SALT_LENGTH = 16;
+<a class="jxr_linenumber" name="L57" href="#L57">57</a>
+<a class="jxr_linenumber" name="L58" href="#L58">58</a> <em class="jxr_javadoccomment">/** The pre-shared key */</em>
+<a class="jxr_linenumber" name="L59" href="#L59">59</a> <strong class="jxr_keyword">private</strong> String psk;
+<a class="jxr_linenumber" name="L60" href="#L60">60</a>
+<a class="jxr_linenumber" name="L61" href="#L61">61</a> <em class="jxr_javadoccomment">/** The cipher transformation */</em>
+<a class="jxr_linenumber" name="L62" href="#L62">62</a> <strong class="jxr_keyword">private</strong> String cipherTransformation = DEFAULT_CIPHER;
+<a class="jxr_linenumber" name="L63" href="#L63">63</a>
+<a class="jxr_linenumber" name="L64" href="#L64">64</a> <em class="jxr_javadoccomment">/** The random source */</em>
+<a class="jxr_linenumber" name="L65" href="#L65">65</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> SecureRandom secureRandom;
+<a class="jxr_linenumber" name="L66" href="#L66">66</a>
+<a class="jxr_linenumber" name="L67" href="#L67">67</a> <em class="jxr_javadoccomment">/** The secret-key factory */</em>
+<a class="jxr_linenumber" name="L68" href="#L68">68</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> SecretKeyFactory secretKeyFactory;
+<a class="jxr_linenumber" name="L69" href="#L69">69</a>
+<a class="jxr_linenumber" name="L70" href="#L70">70</a> <em class="jxr_javadoccomment">/** Wrapped serializer */</em>
+<a class="jxr_linenumber" name="L71" href="#L71">71</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a name="IElementSerializer" href="../../../../../../org/apache/commons/jcs3/engine/behavior/IElementSerializer.html#IElementSerializer">IElementSerializer</a> serializer;
+<a class="jxr_linenumber" name="L72" href="#L72">72</a>
+<a class="jxr_linenumber" name="L73" href="#L73">73</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="L74" href="#L74">74</a> <em class="jxr_javadoccomment"> * Default constructor</em>
+<a class="jxr_linenumber" name="L75" href="#L75">75</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="L76" href="#L76">76</a> <strong class="jxr_keyword">public</strong> <a name="EncryptingSerializer" href="../../../../../../org/apache/commons/jcs3/utils/serialization/EncryptingSerializer.html#EncryptingSerializer">EncryptingSerializer</a>()
+<a class="jxr_linenumber" name="L77" href="#L77">77</a> {
+<a class="jxr_linenumber" name="L78" href="#L78">78</a> <strong class="jxr_keyword">this</strong>(<strong class="jxr_keyword">new</strong> <a name="StandardSerializer" href="../../../../../../org/apache/commons/jcs3/utils/serialization/StandardSerializer.html#StandardSerializer">StandardSerializer</a>());
+<a class="jxr_linenumber" name="L79" href="#L79">79</a> }
+<a class="jxr_linenumber" name="L80" href="#L80">80</a>
+<a class="jxr_linenumber" name="L81" href="#L81">81</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="L82" href="#L82">82</a> <em class="jxr_javadoccomment"> * Wrapper constructor</em>
+<a class="jxr_linenumber" name="L83" href="#L83">83</a> <em class="jxr_javadoccomment"> *</em>
+<a class="jxr_linenumber" name="L84" href="#L84">84</a> <em class="jxr_javadoccomment"> * @param serializer</em>
+<a class="jxr_linenumber" name="L85" href="#L85">85</a> <em class="jxr_javadoccomment"> * the wrapped serializer</em>
+<a class="jxr_linenumber" name="L86" href="#L86">86</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="L87" href="#L87">87</a> <strong class="jxr_keyword">public</strong> <a name="EncryptingSerializer" href="../../../../../../org/apache/commons/jcs3/utils/serialization/EncryptingSerializer.html#EncryptingSerializer">EncryptingSerializer</a>(<a name="IElementSerializer" href="../../../../../../org/apache/commons/jcs3/engine/behavior/IElementSerializer.html#IElementSerializer">IElementSerializer</a> serializer)
+<a class="jxr_linenumber" name="L88" href="#L88">88</a> {
+<a class="jxr_linenumber" name="L89" href="#L89">89</a> <strong class="jxr_keyword">this</strong>.serializer = serializer;
+<a class="jxr_linenumber" name="L90" href="#L90">90</a>
+<a class="jxr_linenumber" name="L91" href="#L91">91</a> <strong class="jxr_keyword">try</strong>
+<a class="jxr_linenumber" name="L92" href="#L92">92</a> {
+<a class="jxr_linenumber" name="L93" href="#L93">93</a> <strong class="jxr_keyword">this</strong>.secureRandom = <strong class="jxr_keyword">new</strong> SecureRandom();
+<a class="jxr_linenumber" name="L94" href="#L94">94</a> <strong class="jxr_keyword">this</strong>.secretKeyFactory = SecretKeyFactory.getInstance(DEFAULT_SECRET_KEY_ALGORITHM);
+<a class="jxr_linenumber" name="L95" href="#L95">95</a> }
+<a class="jxr_linenumber" name="L96" href="#L96">96</a> <strong class="jxr_keyword">catch</strong> (NoSuchAlgorithmException e)
+<a class="jxr_linenumber" name="L97" href="#L97">97</a> {
+<a class="jxr_linenumber" name="L98" href="#L98">98</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> RuntimeException(<span class="jxr_string">"Could not set up encryption tools"</span>, e);
+<a class="jxr_linenumber" name="L99" href="#L99">99</a> }
+<a class="jxr_linenumber" name="L100" href="#L100">100</a> }
+<a class="jxr_linenumber" name="L101" href="#L101">101</a>
+<a class="jxr_linenumber" name="L102" href="#L102">102</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="L103" href="#L103">103</a> <em class="jxr_javadoccomment"> * Set the pre-shared key for encryption and decryption</em>
+<a class="jxr_linenumber" name="L104" href="#L104">104</a> <em class="jxr_javadoccomment"> *</em>
+<a class="jxr_linenumber" name="L105" href="#L105">105</a> <em class="jxr_javadoccomment"> * @param psk the key</em>
+<a class="jxr_linenumber" name="L106" href="#L106">106</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="L107" href="#L107">107</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setPreSharedKey(String psk)
+<a class="jxr_linenumber" name="L108" href="#L108">108</a> {
+<a class="jxr_linenumber" name="L109" href="#L109">109</a> <strong class="jxr_keyword">this</strong>.psk = psk;
+<a class="jxr_linenumber" name="L110" href="#L110">110</a> }
+<a class="jxr_linenumber" name="L111" href="#L111">111</a>
+<a class="jxr_linenumber" name="L112" href="#L112">112</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="L113" href="#L113">113</a> <em class="jxr_javadoccomment"> * Set the cipher transformation for encryption and decryption</em>
+<a class="jxr_linenumber" name="L114" href="#L114">114</a> <em class="jxr_javadoccomment"> * Default is AES/ECB/PKCS5Padding</em>
+<a class="jxr_linenumber" name="L115" href="#L115">115</a> <em class="jxr_javadoccomment"> *</em>
+<a class="jxr_linenumber" name="L116" href="#L116">116</a> <em class="jxr_javadoccomment"> * @param transformation the transformation</em>
+<a class="jxr_linenumber" name="L117" href="#L117">117</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="L118" href="#L118">118</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setAesCipherTransformation(String transformation)
+<a class="jxr_linenumber" name="L119" href="#L119">119</a> {
+<a class="jxr_linenumber" name="L120" href="#L120">120</a> <strong class="jxr_keyword">this</strong>.cipherTransformation = transformation;
+<a class="jxr_linenumber" name="L121" href="#L121">121</a> }
+<a class="jxr_linenumber" name="L122" href="#L122">122</a>
+<a class="jxr_linenumber" name="L123" href="#L123">123</a> <strong class="jxr_keyword">private</strong> byte[] getRandomBytes(<strong class="jxr_keyword">int</strong> length)
+<a class="jxr_linenumber" name="L124" href="#L124">124</a> {
+<a class="jxr_linenumber" name="L125" href="#L125">125</a> byte[] bytes = <strong class="jxr_keyword">new</strong> byte[length];
+<a class="jxr_linenumber" name="L126" href="#L126">126</a> secureRandom.nextBytes(bytes);
+<a class="jxr_linenumber" name="L127" href="#L127">127</a>
+<a class="jxr_linenumber" name="L128" href="#L128">128</a> <strong class="jxr_keyword">return</strong> bytes;
+<a class="jxr_linenumber" name="L129" href="#L129">129</a> }
+<a class="jxr_linenumber" name="L130" href="#L130">130</a>
+<a class="jxr_linenumber" name="L131" href="#L131">131</a> <strong class="jxr_keyword">private</strong> SecretKey createSecretKey(String password, byte[] salt) <strong class="jxr_keyword">throws</strong> InvalidKeySpecException
+<a class="jxr_linenumber" name="L132" href="#L132">132</a> {
+<a class="jxr_linenumber" name="L133" href="#L133">133</a> <em class="jxr_comment">/* Derive the key, given password and salt. */</em>
+<a class="jxr_linenumber" name="L134" href="#L134">134</a> PBEKeySpec spec = <strong class="jxr_keyword">new</strong> PBEKeySpec(password.toCharArray(), salt,
+<a class="jxr_linenumber" name="L135" href="#L135">135</a> KEYHASH_ITERATION_COUNT, KEY_LENGTH);
+<a class="jxr_linenumber" name="L136" href="#L136">136</a> SecretKey tmp = secretKeyFactory.generateSecret(spec);
+<a class="jxr_linenumber" name="L137" href="#L137">137</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> SecretKeySpec(tmp.getEncoded(), <span class="jxr_string">"AES"</span>);
+<a class="jxr_linenumber" name="L138" href="#L138">138</a> }
+<a class="jxr_linenumber" name="L139" href="#L139">139</a>
+<a class="jxr_linenumber" name="L140" href="#L140">140</a> <strong class="jxr_keyword">private</strong> byte[] encrypt(byte[] source) <strong class="jxr_keyword">throws</strong> IOException
+<a class="jxr_linenumber" name="L141" href="#L141">141</a> {
+<a class="jxr_linenumber" name="L142" href="#L142">142</a> <strong class="jxr_keyword">try</strong>
+<a class="jxr_linenumber" name="L143" href="#L143">143</a> {
+<a class="jxr_linenumber" name="L144" href="#L144">144</a> byte[] salt = getRandomBytes(SALT_LENGTH);
+<a class="jxr_linenumber" name="L145" href="#L145">145</a> byte[] iv = getRandomBytes(IV_LENGTH);
+<a class="jxr_linenumber" name="L146" href="#L146">146</a>
+<a class="jxr_linenumber" name="L147" href="#L147">147</a> SecretKey secretKey = createSecretKey(psk, salt);
+<a class="jxr_linenumber" name="L148" href="#L148">148</a> Cipher cipher = Cipher.getInstance(cipherTransformation);
+<a class="jxr_linenumber" name="L149" href="#L149">149</a> <strong class="jxr_keyword">if</strong> (cipher.getAlgorithm().startsWith(<span class="jxr_string">"AES/GCM"</span>))
+<a class="jxr_linenumber" name="L150" href="#L150">150</a> {
+<a class="jxr_linenumber" name="L151" href="#L151">151</a> cipher.init(Cipher.ENCRYPT_MODE, secretKey, <strong class="jxr_keyword">new</strong> GCMParameterSpec(TAG_LENGTH, iv));
+<a class="jxr_linenumber" name="L152" href="#L152">152</a> }
+<a class="jxr_linenumber" name="L153" href="#L153">153</a> <strong class="jxr_keyword">else</strong>
+<a class="jxr_linenumber" name="L154" href="#L154">154</a> {
+<a class="jxr_linenumber" name="L155" href="#L155">155</a> cipher.init(Cipher.ENCRYPT_MODE, secretKey);
+<a class="jxr_linenumber" name="L156" href="#L156">156</a> }
+<a class="jxr_linenumber" name="L157" href="#L157">157</a>
+<a class="jxr_linenumber" name="L158" href="#L158">158</a> byte[] encrypted = cipher.doFinal(source);
+<a class="jxr_linenumber" name="L159" href="#L159">159</a>
+<a class="jxr_linenumber" name="L160" href="#L160">160</a> <em class="jxr_comment">// join initial vector, salt and encrypted data for later decryption</em>
+<a class="jxr_linenumber" name="L161" href="#L161">161</a> <strong class="jxr_keyword">return</strong> ByteBuffer.allocate(IV_LENGTH + SALT_LENGTH + encrypted.length)
+<a class="jxr_linenumber" name="L162" href="#L162">162</a> .put(iv)
+<a class="jxr_linenumber" name="L163" href="#L163">163</a> .put(salt)
+<a class="jxr_linenumber" name="L164" href="#L164">164</a> .put(encrypted)
+<a class="jxr_linenumber" name="L165" href="#L165">165</a> .array();
+<a class="jxr_linenumber" name="L166" href="#L166">166</a> }
+<a class="jxr_linenumber" name="L167" href="#L167">167</a> <strong class="jxr_keyword">catch</strong> (NoSuchAlgorithmException | NoSuchPaddingException | BadPaddingException |
+<a class="jxr_linenumber" name="L168" href="#L168">168</a> IllegalBlockSizeException | InvalidKeyException | InvalidKeySpecException |
+<a class="jxr_linenumber" name="L169" href="#L169">169</a> InvalidAlgorithmParameterException e)
+<a class="jxr_linenumber" name="L170" href="#L170">170</a> {
+<a class="jxr_linenumber" name="L171" href="#L171">171</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Error while encrypting"</span>, e);
+<a class="jxr_linenumber" name="L172" href="#L172">172</a> }
+<a class="jxr_linenumber" name="L173" href="#L173">173</a> }
+<a class="jxr_linenumber" name="L174" href="#L174">174</a>
+<a class="jxr_linenumber" name="L175" href="#L175">175</a> <strong class="jxr_keyword">private</strong> byte[] decrypt(byte[] source) <strong class="jxr_keyword">throws</strong> IOException
+<a class="jxr_linenumber" name="L176" href="#L176">176</a> {
+<a class="jxr_linenumber" name="L177" href="#L177">177</a> <strong class="jxr_keyword">try</strong>
+<a class="jxr_linenumber" name="L178" href="#L178">178</a> {
+<a class="jxr_linenumber" name="L179" href="#L179">179</a> <em class="jxr_comment">// split data in initial vector, salt and encrypted data</em>
+<a class="jxr_linenumber" name="L180" href="#L180">180</a> ByteBuffer wrapped = ByteBuffer.wrap(source);
+<a class="jxr_linenumber" name="L181" href="#L181">181</a>
+<a class="jxr_linenumber" name="L182" href="#L182">182</a> byte[] iv = <strong class="jxr_keyword">new</strong> byte[IV_LENGTH];
+<a class="jxr_linenumber" name="L183" href="#L183">183</a> wrapped.get(iv);
+<a class="jxr_linenumber" name="L184" href="#L184">184</a>
+<a class="jxr_linenumber" name="L185" href="#L185">185</a> byte[] salt = <strong class="jxr_keyword">new</strong> byte[SALT_LENGTH];
+<a class="jxr_linenumber" name="L186" href="#L186">186</a> wrapped.get(salt);
+<a class="jxr_linenumber" name="L187" href="#L187">187</a>
+<a class="jxr_linenumber" name="L188" href="#L188">188</a> byte[] encrypted = <strong class="jxr_keyword">new</strong> byte[wrapped.remaining()];
+<a class="jxr_linenumber" name="L189" href="#L189">189</a> wrapped.get(encrypted);
+<a class="jxr_linenumber" name="L190" href="#L190">190</a>
+<a class="jxr_linenumber" name="L191" href="#L191">191</a> SecretKey secretKey = createSecretKey(psk, salt);
+<a class="jxr_linenumber" name="L192" href="#L192">192</a> Cipher cipher = Cipher.getInstance(cipherTransformation);
+<a class="jxr_linenumber" name="L193" href="#L193">193</a>
+<a class="jxr_linenumber" name="L194" href="#L194">194</a> <strong class="jxr_keyword">if</strong> (cipher.getAlgorithm().startsWith(<span class="jxr_string">"AES/GCM"</span>))
+<a class="jxr_linenumber" name="L195" href="#L195">195</a> {
+<a class="jxr_linenumber" name="L196" href="#L196">196</a> cipher.init(Cipher.DECRYPT_MODE, secretKey, <strong class="jxr_keyword">new</strong> GCMParameterSpec(TAG_LENGTH, iv));
+<a class="jxr_linenumber" name="L197" href="#L197">197</a> }
+<a class="jxr_linenumber" name="L198" href="#L198">198</a> <strong class="jxr_keyword">else</strong>
+<a class="jxr_linenumber" name="L199" href="#L199">199</a> {
+<a class="jxr_linenumber" name="L200" href="#L200">200</a> cipher.init(Cipher.DECRYPT_MODE, secretKey);
+<a class="jxr_linenumber" name="L201" href="#L201">201</a> }
+<a class="jxr_linenumber" name="L202" href="#L202">202</a>
+<a class="jxr_linenumber" name="L203" href="#L203">203</a> <strong class="jxr_keyword">return</strong> cipher.doFinal(encrypted);
+<a class="jxr_linenumber" name="L204" href="#L204">204</a> }
+<a class="jxr_linenumber" name="L205" href="#L205">205</a> <strong class="jxr_keyword">catch</strong> (NoSuchAlgorithmException | NoSuchPaddingException | BadPaddingException |
+<a class="jxr_linenumber" name="L206" href="#L206">206</a> IllegalBlockSizeException | InvalidKeyException | InvalidKeySpecException |
+<a class="jxr_linenumber" name="L207" href="#L207">207</a> InvalidAlgorithmParameterException e)
+<a class="jxr_linenumber" name="L208" href="#L208">208</a> {
+<a class="jxr_linenumber" name="L209" href="#L209">209</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Error while decrypting"</span>, e);
+<a class="jxr_linenumber" name="L210" href="#L210">210</a> }
+<a class="jxr_linenumber" name="L211" href="#L211">211</a> }
+<a class="jxr_linenumber" name="L212" href="#L212">212</a>
+<a class="jxr_linenumber" name="L213" href="#L213">213</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="L214" href="#L214">214</a> <em class="jxr_javadoccomment"> * Serializes an object using default serialization. Encrypts the byte array.</em>
+<a class="jxr_linenumber" name="L215" href="#L215">215</a> <em class="jxr_javadoccomment"> * <p></em>
+<a class="jxr_linenumber" name="L216" href="#L216">216</a> <em class="jxr_javadoccomment"> * @param obj object</em>
+<a class="jxr_linenumber" name="L217" href="#L217">217</a> <em class="jxr_javadoccomment"> * @return byte[]</em>
+<a class="jxr_linenumber" name="L218" href="#L218">218</a> <em class="jxr_javadoccomment"> * @throws IOException on i/o problem</em>
+<a class="jxr_linenumber" name="L219" href="#L219">219</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="L220" href="#L220">220</a> @Override
+<a class="jxr_linenumber" name="L221" href="#L221">221</a> <strong class="jxr_keyword">public</strong> <T> byte[] serialize( <strong class="jxr_keyword">final</strong> T obj )
+<a class="jxr_linenumber" name="L222" href="#L222">222</a> <strong class="jxr_keyword">throws</strong> IOException
+<a class="jxr_linenumber" name="L223" href="#L223">223</a> {
+<a class="jxr_linenumber" name="L224" href="#L224">224</a> <strong class="jxr_keyword">final</strong> byte[] unencrypted = serializer.serialize(obj);
+<a class="jxr_linenumber" name="L225" href="#L225">225</a> <strong class="jxr_keyword">return</strong> encrypt(unencrypted);
+<a class="jxr_linenumber" name="L226" href="#L226">226</a> }
+<a class="jxr_linenumber" name="L227" href="#L227">227</a>
+<a class="jxr_linenumber" name="L228" href="#L228">228</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="L229" href="#L229">229</a> <em class="jxr_javadoccomment"> * Uses default de-serialization to turn a byte array into an object. Decrypts the value</em>
+<a class="jxr_linenumber" name="L230" href="#L230">230</a> <em class="jxr_javadoccomment"> * first. All exceptions are converted into IOExceptions.</em>
+<a class="jxr_linenumber" name="L231" href="#L231">231</a> <em class="jxr_javadoccomment"> * <p></em>
+<a class="jxr_linenumber" name="L232" href="#L232">232</a> <em class="jxr_javadoccomment"> * @param data data bytes</em>
+<a class="jxr_linenumber" name="L233" href="#L233">233</a> <em class="jxr_javadoccomment"> * @param loader class loader to use</em>
+<a class="jxr_linenumber" name="L234" href="#L234">234</a> <em class="jxr_javadoccomment"> * @return Object</em>
+<a class="jxr_linenumber" name="L235" href="#L235">235</a> <em class="jxr_javadoccomment"> * @throws IOException on i/o problem</em>
+<a class="jxr_linenumber" name="L236" href="#L236">236</a> <em class="jxr_javadoccomment"> * @throws ClassNotFoundException if class is not found during deserialization</em>
+<a class="jxr_linenumber" name="L237" href="#L237">237</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="L238" href="#L238">238</a> @Override
+<a class="jxr_linenumber" name="L239" href="#L239">239</a> <strong class="jxr_keyword">public</strong> <T> T deSerialize( <strong class="jxr_keyword">final</strong> byte[] data, <strong class="jxr_keyword">final</strong> ClassLoader loader )
+<a class="jxr_linenumber" name="L240" href="#L240">240</a> <strong class="jxr_keyword">throws</strong> IOException, ClassNotFoundException
+<a class="jxr_linenumber" name="L241" href="#L241">241</a> {
+<a class="jxr_linenumber" name="L242" href="#L242">242</a> <strong class="jxr_keyword">if</strong> ( data == <strong class="jxr_keyword">null</strong> )
+<a class="jxr_linenumber" name="L243" href="#L243">243</a> {
+<a class="jxr_linenumber" name="L244" href="#L244">244</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="L245" href="#L245">245</a> }
+<a class="jxr_linenumber" name="L246" href="#L246">246</a>
+<a class="jxr_linenumber" name="L247" href="#L247">247</a> <strong class="jxr_keyword">final</strong> byte[] deccrypted = decrypt(data);
+<a class="jxr_linenumber" name="L248" href="#L248">248</a> <strong class="jxr_keyword">return</strong> serializer.deSerialize(deccrypted, loader);
+<a class="jxr_linenumber" name="L249" href="#L249">249</a> }
+<a class="jxr_linenumber" name="L250" href="#L250">250</a> }
+</pre>
+<hr/>
+<div id="footer">Copyright © 2002–2022 <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved.</div>
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