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<h5>Coverage Report - org.apache.shiro.crypto.CipherService</h5>
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<thead><tr> <td class="heading">Classes in this File</td> <td class="heading"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">Line Coverage</a></td> <td class="heading"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">Branch Coverage</a></td> <td class="heading"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">Complexity</a></td></tr></thead>
<tr><td><a href="org.apache.shiro.crypto.CipherService.html">CipherService</a></td><td><table cellpadding="0px" cellspacing="0px" class="percentgraph"><tr class="percentgraph"><td align="right" class="percentgraph" width="40"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">N/A</a></td><td class="percentgraph"><div class="percentgraph"><div class="na" style="width:100px"><span class="text"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">N/A</a></span></div></div></td></tr></table></td><td><table cellpadding="0px" cellspacing="0px" class="percentgraph"><tr class="percentgraph"><td align="right" class="percentgraph" width="40"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">N/A</a></td><td class="percentgraph"><div class="percentgraph"><div class="na" style="width:100px"><span class="text"><a class="dfn" href="help.html" onclick="popupwindow('help.html'); return false;">N/A</a></span></div></div></td></tr></table></td><td class="value"><span class="hidden">1.0;</span>1</td></tr>
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<tr> <td class="numLine">&nbsp;1</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment">/*</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;2</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;3</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * or more contributor license agreements. See the NOTICE file</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;4</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * distributed with this work for additional information</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;5</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;6</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * to you under the Apache License, Version 2.0 (the</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;7</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * "License"); you may not use this file except in compliance</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;8</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * with the License. You may obtain a copy of the License at</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;9</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;10</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;11</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;12</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Unless required by applicable law or agreed to in writing,</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;13</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * software distributed under the License is distributed on an</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;14</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;15</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * KIND, either express or implied. See the License for the</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;16</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * specific language governing permissions and limitations</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;17</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * under the License.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;18</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;19</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="keyword">package</span> org.apache.shiro.crypto;</pre></td></tr>
<tr> <td class="numLine">&nbsp;20</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;21</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="keyword">import</span> org.apache.shiro.util.ByteSource;</pre></td></tr>
<tr> <td class="numLine">&nbsp;22</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;23</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="keyword">import</span> java.io.InputStream;</pre></td></tr>
<tr> <td class="numLine">&nbsp;24</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="keyword">import</span> java.io.OutputStream;</pre></td></tr>
<tr> <td class="numLine">&nbsp;25</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;26</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;27</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * A {@code CipherService} uses a cryptographic algorithm called a</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;28</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;a href="http://en.wikipedia.org/wiki/Cipher"&gt;Cipher&lt;/a&gt; to convert an original input source using a {@code key} to</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;29</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * an uninterpretable format. The resulting encrypted output is only able to be converted back to original form with</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;30</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * a {@code key} as well. {@code CipherService}s can perform both encryption and decryption.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;31</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;h2&gt;Cipher Basics&lt;/h2&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;32</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * For what is known as &lt;em&gt;Symmetric&lt;/em&gt; {@code Cipher}s, the {@code Key} used to encrypt the source is the same</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;33</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * as (or trivially similar to) the {@code Key} used to decrypt it.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;34</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;p/&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;35</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * For &lt;em&gt;Asymmetric&lt;/em&gt; {@code Cipher}s, the encryption {@code Key} is not the same as the decryption {@code Key}.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;36</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * The most common type of Asymmetric Ciphers are based on what is called public/private key pairs:</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;37</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;p/&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;38</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * A &lt;em&gt;private&lt;/em&gt; key is known only to a single party, and as its name implies, is supposed be kept very private</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;39</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * and secure. A &lt;em&gt;public&lt;/em&gt; key that is associated with the private key can be disseminated freely to anyone.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;40</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Then data encrypted by the public key can only be decrypted by the private key and vice versa, but neither party</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;41</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * need share their private key with anyone else. By not sharing a private key, you can guarantee no 3rd party can</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;42</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * intercept the key and therefore use it to decrypt a message.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;43</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;p/&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;44</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * This asymmetric key technology was created as a</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;45</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * more secure alternative to symmetric ciphers that sometimes suffer from man-in-the-middle attacks since, for</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;46</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * data shared between two parties, the same Key must also be shared and may be compromised.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;47</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;p/&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;48</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Note that a symmetric cipher is perfectly fine to use if you just want to encode data in a format no one else</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;49</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * can understand and you never give away the key. Shiro uses a symmetric cipher when creating certain</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;50</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * HTTP Cookies for example - because it is often undesirable to have user's identity stored in a plain-text cookie,</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;51</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * that identity can be converted via a symmetric cipher. Since the the same exact Shiro application will receive</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;52</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * the cookie, it can decrypt it via the same {@code Key} and there is no potential for discovery since that Key</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;53</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * is never shared with anyone.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;54</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;h2&gt;{@code CipherService}s vs JDK {@link javax.crypto.Cipher Cipher}s&lt;/h2&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;55</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Shiro {@code CipherService}s essentially do the same things as JDK {@link javax.crypto.Cipher Cipher}s, but in</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;56</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * simpler and easier-to-use ways for most application developers. When thinking about encrypting and decrypting data</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;57</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * in an application, most app developers want what a {@code CipherService} provides, rather than having to manage the</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;58</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * lower-level intricacies of the JDK's {@code Cipher} API. Here are a few reasons why most people prefer</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;59</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * {@code CipherService}s:</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;60</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;ul&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;61</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;li&gt;&lt;b&gt;Stateless Methods&lt;/b&gt; - {@code CipherService} method calls do not retain state between method invocations.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;62</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * JDK {@code Cipher} instances do retain state across invocations, requiring its end-users to manage the instance</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;63</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * and its state themselves.&lt;/li&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;64</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;li&gt;&lt;b&gt;Thread Safety&lt;/b&gt; - {@code CipherService} instances are thread-safe inherently because no state is</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;65</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * retained across method invocations. JDK {@code Cipher} instances retain state and cannot be used by multiple</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;66</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * threads concurrently.&lt;/li&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;67</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;li&gt;&lt;b&gt;Single Operation&lt;/b&gt; - {@code CipherService} method calls are single operation methods: encryption or</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;68</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * decryption in their entirety are done as a single method call. This is ideal for the large majority of developer</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;69</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * needs where you have something unencrypted and just want it decrypted (or vice versa) in a single method call. In</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;70</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * contrast, JDK {@code Cipher} instances can support encrypting/decrypting data in chunks over time (because it</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;71</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * retains state), but this often introduces API clutter and confusion for most application developers.&lt;/li&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;72</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;li&gt;&lt;b&gt;Type Safe&lt;/b&gt; - There are {@code CipherService} implementations for different Cipher algorithms</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;73</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * ({@code AesCipherService}, {@code BlowfishCipherService}, etc). There is only one JDK {@code Cipher} class to</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;74</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * represent all cipher algorithms/instances.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;75</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;li&gt;&lt;b&gt;Simple Construction&lt;/b&gt; - Because {@code CipherService} instances are type-safe, instantiating and using</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;76</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * one is often as simple as calling the default constructor, for example, &lt;code&gt;new AesCipherService();&lt;/code&gt;. The</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;77</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * JDK {@code Cipher} class however requires using a procedural factory method with String arguments to indicate how</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;78</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * the instance should be created. The String arguments themselves are somewhat cryptic and hard to</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;79</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * understand unless you're a security expert. Shiro hides these details from you, but allows you to configure them</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;80</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * if you want.&lt;/li&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;81</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;/ul&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;82</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;83</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @see BlowfishCipherService</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;84</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @see AesCipherService</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;85</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @since 1.0</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;86</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;87</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="keyword">public</span> <span class="keyword">interface</span> CipherService {</pre></td></tr>
<tr> <td class="numLine">&nbsp;88</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;89</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;90</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Decrypts encrypted data via the specified cipher key and returns the original (pre-encrypted) data.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;91</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Note that the key must be in a format understood by the CipherService implementation.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;92</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;93</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param encrypted the previously encrypted data to decrypt</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;94</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param decryptionKey the cipher key used during decryption.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;95</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @return a byte source representing the original form of the specified encrypted data.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;96</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @throws CryptoException if there is an error during decryption</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;97</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;98</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; ByteSource decrypt(<span class="keyword">byte</span>[] encrypted, <span class="keyword">byte</span>[] decryptionKey) <span class="keyword">throws</span> CryptoException;</pre></td></tr>
<tr> <td class="numLine">&nbsp;99</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;100</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;101</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Receives encrypted data from the given {@code InputStream}, decrypts it, and sends the resulting decrypted data</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;102</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * to the given {@code OutputStream}.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;103</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;p/&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;104</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;b&gt;NOTE:&lt;/b&gt; This method &lt;em&gt;does NOT&lt;/em&gt; flush or close either stream prior to returning - the caller must</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;105</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * do so when they are finished with the streams. For example:</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;106</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;pre&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;107</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * try {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;108</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * InputStream in = ...</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;109</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * OutputStream out = ...</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;110</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * cipherService.decrypt(in, out, decryptionKey);</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;111</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * } finally {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;112</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * if (in != null) {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;113</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * try {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;114</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * in.close();</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;115</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * } catch (IOException ioe1) { ... log, trigger event, etc }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;116</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;117</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * if (out != null) {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;118</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * try {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;119</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * out.close();</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;120</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * } catch (IOException ioe2) { ... log, trigger event, etc }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;121</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;122</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;123</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;/pre&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;124</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;125</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param in the stream supplying the data to decrypt</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;126</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param out the stream to send the decrypted data</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;127</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param decryptionKey the cipher key to use for decryption</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;128</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @throws CryptoException if there is any problem during decryption.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;129</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;130</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="keyword">void</span> decrypt(InputStream in, OutputStream out, <span class="keyword">byte</span>[] decryptionKey) <span class="keyword">throws</span> CryptoException;</pre></td></tr>
<tr> <td class="numLine">&nbsp;131</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;132</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;133</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Encrypts data via the specified cipher key. Note that the key must be in a format understood by</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;134</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * the {@code CipherService} implementation.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;135</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;136</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param raw the data to encrypt</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;137</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param encryptionKey the cipher key used during encryption.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;138</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @return a byte source with the encrypted representation of the specified raw data.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;139</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @throws CryptoException if there is an error during encryption</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;140</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;141</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; ByteSource encrypt(<span class="keyword">byte</span>[] raw, <span class="keyword">byte</span>[] encryptionKey) <span class="keyword">throws</span> CryptoException;</pre></td></tr>
<tr> <td class="numLine">&nbsp;142</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;143</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;144</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * Receives the data from the given {@code InputStream}, encrypts it, and sends the resulting encrypted data to the</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;145</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * given {@code OutputStream}.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;146</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;p/&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;147</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;b&gt;NOTE:&lt;/b&gt; This method &lt;em&gt;does NOT&lt;/em&gt; flush or close either stream prior to returning - the caller must</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;148</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * do so when they are finished with the streams. For example:</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;149</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;pre&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;150</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * try {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;151</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * InputStream in = ...</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;152</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * OutputStream out = ...</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;153</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * cipherService.encrypt(in, out, encryptionKey);</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;154</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * } finally {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;155</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * if (in != null) {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;156</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * try {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;157</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * in.close();</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;158</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * } catch (IOException ioe1) { ... log, trigger event, etc }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;159</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;160</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * if (out != null) {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;161</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * try {</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;162</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * out.close();</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;163</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * } catch (IOException ioe2) { ... log, trigger event, etc }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;164</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;165</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * }</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;166</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * &lt;/pre&gt;</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;167</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> *</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;168</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param in the stream supplying the data to encrypt</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;169</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param out the stream to send the encrypted data</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;170</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @param encryptionKey the cipher key to use for encryption</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;171</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> * @throws CryptoException if there is any problem during encryption.</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;172</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;<span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine">&nbsp;173</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp; <span class="keyword">void</span> encrypt(InputStream in, OutputStream out, <span class="keyword">byte</span>[] encryptionKey) <span class="keyword">throws</span> CryptoException;</pre></td></tr>
<tr> <td class="numLine">&nbsp;174</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;</pre></td></tr>
<tr> <td class="numLine">&nbsp;175</td> <td class="nbHits">&nbsp;</td>
<td class="src"><pre class="src">&nbsp;}</pre></td></tr>
</table>
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