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<div id="overview"><a href="../../../../../apidocs/org/apache/juddi/samples/AES.html">View Javadoc</a></div><pre>
<a class="jxr_linenumber" name="L1" href="#L1">1</a> <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="L2" href="#L2">2</a> <em class="jxr_comment"> * Copyright 2001-2013 The Apache Software Foundation.</em>
<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 under the Apache License, Version 2.0 (the "License");</em>
<a class="jxr_linenumber" name="L5" href="#L5">5</a> <em class="jxr_comment"> * you may not use this file except in compliance with the License.</em>
<a class="jxr_linenumber" name="L6" href="#L6">6</a> <em class="jxr_comment"> * You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="L7" href="#L7">7</a> <em class="jxr_comment"> * </em>
<a class="jxr_linenumber" name="L8" href="#L8">8</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2." target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.</a>0</em>
<a class="jxr_linenumber" name="L9" href="#L9">9</a> <em class="jxr_comment"> * </em>
<a class="jxr_linenumber" name="L10" href="#L10">10</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="L11" href="#L11">11</a> <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="L12" href="#L12">12</a> <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="L13" href="#L13">13</a> <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="L14" href="#L14">14</a> <em class="jxr_comment"> * limitations under the License.</em>
<a class="jxr_linenumber" name="L15" href="#L15">15</a> <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="L16" href="#L16">16</a> <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="L17" href="#L17">17</a> <strong class="jxr_keyword">package</strong> org.apache.juddi.samples;
<a class="jxr_linenumber" name="L18" href="#L18">18</a>
<a class="jxr_linenumber" name="L19" href="#L19">19</a> <strong class="jxr_keyword">import</strong> javax.crypto.Cipher;
<a class="jxr_linenumber" name="L20" href="#L20">20</a> <strong class="jxr_keyword">import</strong> javax.crypto.KeyGenerator;
<a class="jxr_linenumber" name="L21" href="#L21">21</a> <strong class="jxr_keyword">import</strong> javax.crypto.SecretKey;
<a class="jxr_linenumber" name="L22" href="#L22">22</a> <strong class="jxr_keyword">import</strong> javax.crypto.spec.SecretKeySpec;
<a class="jxr_linenumber" name="L23" href="#L23">23</a>
<a class="jxr_linenumber" name="L24" href="#L24">24</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L25" href="#L25">25</a> <em class="jxr_javadoccomment"> * This call is a simple test class that shows how to encrypt stuff in Java</em>
<a class="jxr_linenumber" name="L26" href="#L26">26</a> <em class="jxr_javadoccomment"> * using AES</em>
<a class="jxr_linenumber" name="L27" href="#L27">27</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="L28" href="#L28">28</a> <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="mailto:alexoree@apache.org" target="alexandria_uri">mailto:alexoree@apache.org</a>"&gt;Alex O'Ree&lt;/a&gt;</em>
<a class="jxr_linenumber" name="L29" href="#L29">29</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L30" href="#L30">30</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/juddi/samples/AES.html">AES</a> {
<a class="jxr_linenumber" name="L31" href="#L31">31</a>
<a class="jxr_linenumber" name="L32" href="#L32">32</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String GEN(<strong class="jxr_keyword">int</strong> keysize) {
<a class="jxr_linenumber" name="L33" href="#L33">33</a> KeyGenerator kgen;
<a class="jxr_linenumber" name="L34" href="#L34">34</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="L35" href="#L35">35</a> kgen = KeyGenerator.getInstance(<span class="jxr_string">"AES"</span>);
<a class="jxr_linenumber" name="L36" href="#L36">36</a> kgen.init(keysize);
<a class="jxr_linenumber" name="L37" href="#L37">37</a> SecretKey skey = kgen.generateKey();
<a class="jxr_linenumber" name="L38" href="#L38">38</a> byte[] raw = skey.getEncoded();
<a class="jxr_linenumber" name="L39" href="#L39">39</a> <strong class="jxr_keyword">return</strong> asHex(raw);
<a class="jxr_linenumber" name="L40" href="#L40">40</a> } <strong class="jxr_keyword">catch</strong> (Exception ex) {
<a class="jxr_linenumber" name="L41" href="#L41">41</a> }
<a class="jxr_linenumber" name="L42" href="#L42">42</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="L43" href="#L43">43</a> }
<a class="jxr_linenumber" name="L44" href="#L44">44</a>
<a class="jxr_linenumber" name="L45" href="#L45">45</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> String asHex(byte buf[]) {
<a class="jxr_linenumber" name="L46" href="#L46">46</a> <em class="jxr_comment">//return new String(buf);</em>
<a class="jxr_linenumber" name="L47" href="#L47">47</a> StringBuilder strbuf = <strong class="jxr_keyword">new</strong> StringBuilder(buf.length * 2);
<a class="jxr_linenumber" name="L48" href="#L48">48</a> <strong class="jxr_keyword">int</strong> i;
<a class="jxr_linenumber" name="L49" href="#L49">49</a>
<a class="jxr_linenumber" name="L50" href="#L50">50</a> <strong class="jxr_keyword">for</strong> (i = 0; i &lt; buf.length; i++) {
<a class="jxr_linenumber" name="L51" href="#L51">51</a> <strong class="jxr_keyword">if</strong> (((<strong class="jxr_keyword">int</strong>) buf[i] &amp; 0xff) &lt; 0x10) {
<a class="jxr_linenumber" name="L52" href="#L52">52</a> strbuf.append(<span class="jxr_string">"0"</span>);
<a class="jxr_linenumber" name="L53" href="#L53">53</a> }
<a class="jxr_linenumber" name="L54" href="#L54">54</a> strbuf.append(Long.toString((<strong class="jxr_keyword">int</strong>) buf[i] &amp; 0xff, 16));
<a class="jxr_linenumber" name="L55" href="#L55">55</a> }
<a class="jxr_linenumber" name="L56" href="#L56">56</a>
<a class="jxr_linenumber" name="L57" href="#L57">57</a> <strong class="jxr_keyword">return</strong> strbuf.toString();
<a class="jxr_linenumber" name="L58" href="#L58">58</a> }
<a class="jxr_linenumber" name="L59" href="#L59">59</a>
<a class="jxr_linenumber" name="L60" href="#L60">60</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] hexToBytes(String s) {
<a class="jxr_linenumber" name="L61" href="#L61">61</a> <em class="jxr_comment">//return s.getBytes();</em>
<a class="jxr_linenumber" name="L62" href="#L62">62</a> <strong class="jxr_keyword">return</strong> hexToBytes(s.toCharArray());
<a class="jxr_linenumber" name="L63" href="#L63">63</a> }
<a class="jxr_linenumber" name="L64" href="#L64">64</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">char</strong>[] kDigits = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a',
<a class="jxr_linenumber" name="L65" href="#L65">65</a> 'b', 'c', 'd', 'e', 'f'};
<a class="jxr_linenumber" name="L66" href="#L66">66</a>
<a class="jxr_linenumber" name="L67" href="#L67">67</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] hexToBytes(<strong class="jxr_keyword">char</strong>[] hex) {
<a class="jxr_linenumber" name="L68" href="#L68">68</a> <strong class="jxr_keyword">int</strong> length = hex.length / 2;
<a class="jxr_linenumber" name="L69" href="#L69">69</a> byte[] raw = <strong class="jxr_keyword">new</strong> byte[length];
<a class="jxr_linenumber" name="L70" href="#L70">70</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; length; i++) {
<a class="jxr_linenumber" name="L71" href="#L71">71</a> <strong class="jxr_keyword">int</strong> high = Character.digit(hex[i * 2], 16);
<a class="jxr_linenumber" name="L72" href="#L72">72</a> <strong class="jxr_keyword">int</strong> low = Character.digit(hex[i * 2 + 1], 16);
<a class="jxr_linenumber" name="L73" href="#L73">73</a> <strong class="jxr_keyword">int</strong> value = (high &lt;&lt; 4) | low;
<a class="jxr_linenumber" name="L74" href="#L74">74</a> <strong class="jxr_keyword">if</strong> (value &gt; 127) {
<a class="jxr_linenumber" name="L75" href="#L75">75</a> value -= 256;
<a class="jxr_linenumber" name="L76" href="#L76">76</a> }
<a class="jxr_linenumber" name="L77" href="#L77">77</a> raw[i] = (byte) value;
<a class="jxr_linenumber" name="L78" href="#L78">78</a> }
<a class="jxr_linenumber" name="L79" href="#L79">79</a> <strong class="jxr_keyword">return</strong> raw;
<a class="jxr_linenumber" name="L80" href="#L80">80</a> }
<a class="jxr_linenumber" name="L81" href="#L81">81</a> <em class="jxr_comment">//default key</em>
<a class="jxr_linenumber" name="L82" href="#L82">82</a> <em class="jxr_comment">// private final static String something2 = "dde284c781d60ca0b56c4b23eec85217951dc99869402abd42c7dcc9080d60aa";</em>
<a class="jxr_linenumber" name="L83" href="#L83">83</a>
<a class="jxr_linenumber" name="L84" href="#L84">84</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> main(String[] args) <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="L85" href="#L85">85</a> <em class="jxr_comment">//ee4bd3eefe38c3d996a89589de5b9698</em>
<a class="jxr_linenumber" name="L86" href="#L86">86</a> String key = GEN(128);
<a class="jxr_linenumber" name="L87" href="#L87">87</a> System.out.println(key);
<a class="jxr_linenumber" name="L88" href="#L88">88</a>
<a class="jxr_linenumber" name="L89" href="#L89">89</a> byte[] raw = hexToBytes(key); <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="L90" href="#L90">90</a> SecretKeySpec skeySpec = <strong class="jxr_keyword">new</strong> SecretKeySpec(raw, <span class="jxr_string">"AES"</span>);
<a class="jxr_linenumber" name="L91" href="#L91">91</a> <em class="jxr_comment">// Instantiate the cipher</em>
<a class="jxr_linenumber" name="L92" href="#L92">92</a> Cipher cipher = Cipher.getInstance(<span class="jxr_string">"AES"</span>);
<a class="jxr_linenumber" name="L93" href="#L93">93</a> cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
<a class="jxr_linenumber" name="L94" href="#L94">94</a> byte[] encrypted = cipher.doFinal(<span class="jxr_string">"password"</span>.getBytes(<span class="jxr_string">"UTF-8"</span>));
<a class="jxr_linenumber" name="L95" href="#L95">95</a> String enc = (asHex(encrypted));
<a class="jxr_linenumber" name="L96" href="#L96">96</a> System.out.println(enc);
<a class="jxr_linenumber" name="L97" href="#L97">97</a>
<a class="jxr_linenumber" name="L98" href="#L98">98</a> skeySpec = <strong class="jxr_keyword">new</strong> SecretKeySpec(hexToBytes(key), <span class="jxr_string">"AES"</span>);
<a class="jxr_linenumber" name="L99" href="#L99">99</a> cipher.init(Cipher.DECRYPT_MODE, skeySpec);
<a class="jxr_linenumber" name="L100" href="#L100">100</a> byte[] original = cipher.doFinal(hexToBytes(enc));
<a class="jxr_linenumber" name="L101" href="#L101">101</a>
<a class="jxr_linenumber" name="L102" href="#L102">102</a> System.out.println(<strong class="jxr_keyword">new</strong> String(original, <span class="jxr_string">"UTF-8"</span>));
<a class="jxr_linenumber" name="L103" href="#L103">103</a>
<a class="jxr_linenumber" name="L104" href="#L104">104</a> }
<a class="jxr_linenumber" name="L105" href="#L105">105</a> }
</pre>
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