shaka-packager/docs/d1/df0/aes__encryptor_8h_source.html

251 lines
36 KiB
HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.6"/>
<title>DASH Media Packaging SDK: media/base/aes_encryptor.h Source File</title>
<link href="../../tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../jquery.js"></script>
<script type="text/javascript" src="../../dynsections.js"></script>
<link href="../../search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../search/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
<link href="../../doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">DASH Media Packaging SDK
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.6 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "../../search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="../../index.html"><span>Main&#160;Page</span></a></li>
<li><a href="../../namespaces.html"><span>Namespaces</span></a></li>
<li><a href="../../annotated.html"><span>Classes</span></a></li>
<li class="current"><a href="../../files.html"><span>Files</span></a></li>
<li>
<div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="../../search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="../../search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
<div id="navrow2" class="tabs2">
<ul class="tablist">
<li><a href="../../files.html"><span>File&#160;List</span></a></li>
</ul>
</div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark">&#160;</span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark">&#160;</span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark">&#160;</span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark">&#160;</span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark">&#160;</span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark">&#160;</span>Enumerator</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="../../dir_39dc0668bd5a501998f94e8b4e546c71.html">media</a></li><li class="navelem"><a class="el" href="../../dir_c6ada2450b25ab5438a4dba6c9b890af.html">base</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">aes_encryptor.h</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2014 Google Inc. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// license that can be found in the LICENSE file or at</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">// AES Encryptor implementation using openssl.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;</div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#ifndef MEDIA_BASE_AES_ENCRYPTOR_H_</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define MEDIA_BASE_AES_ENCRYPTOR_H_</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &quot;packager/base/memory/scoped_ptr.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;packager/base/stl_util.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">struct </span>aes_key_st;</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>aes_key_st AES_KEY;</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="keyword">namespace </span>edash_packager {</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;</div>
<div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html"> 24</a></span>&#160;<span class="keyword">class </span><a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html">AesEncryptor</a> {</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html">AesEncryptor</a>();</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; <span class="keyword">virtual</span> ~<a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html">AesEncryptor</a>();</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a49631d3d3d834bf7d78e0d51d7b33651">InitializeWithRandomIv</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; key,</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; uint8_t iv_size);</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#aa62b508ead94c483e2186e30da442faa">InitializeWithIv</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; key,</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a741ad288803fc1c609dcc574ef797280">iv</a>);</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keywordtype">bool</span> Encrypt(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; plaintext,</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; std::vector&lt;uint8_t&gt;* ciphertext);</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keywordtype">bool</span> Encrypt(<span class="keyword">const</span> std::string&amp; plaintext, std::string* ciphertext);</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keywordtype">bool</span> Encrypt(<span class="keyword">const</span> uint8_t* plaintext,</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keywordtype">size_t</span> plaintext_size,</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; uint8_t* ciphertext) {</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keywordflow">return</span> <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#ad71d9a5010d0855037af761ad2389ab0">EncryptInternal</a>(plaintext, plaintext_size, ciphertext);</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; }</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a23724f4f7a8a94599ced13878af59d51">UpdateIv</a>() = 0;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a90d1ed31ee6c25dd0b27cb48c1366699">SetIv</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; iv) = 0;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a741ad288803fc1c609dcc574ef797280"> 62</a></span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a741ad288803fc1c609dcc574ef797280">iv</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> iv_; }</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#ad71d9a5010d0855037af761ad2389ab0">EncryptInternal</a>(<span class="keyword">const</span> uint8_t* plaintext,</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordtype">size_t</span> plaintext_size,</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; uint8_t* ciphertext) = 0;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a36022a2b0a3c89222030a2d8d8d5dfff">NumPaddingBytes</a>(<span class="keywordtype">size_t</span> size) <span class="keyword">const</span> = 0;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="keywordtype">void</span> set_iv(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; iv) { iv_ = <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a741ad288803fc1c609dcc574ef797280">iv</a>; }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; AES_KEY* aes_key()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> aes_key_.get(); }</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="comment">// Initialization vector, with size 8 or 16.</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; std::vector&lt;uint8_t&gt; iv_;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="comment">// Openssl AES_KEY.</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; scoped_ptr&lt;AES_KEY&gt; aes_key_;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; DISALLOW_COPY_AND_ASSIGN(AesEncryptor);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;};</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;<span class="comment">// Class which implements AES-CTR counter-mode encryption.</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html"> 90</a></span>&#160;<span class="keyword">class </span><a class="code" href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html">AesCtrEncryptor</a> : <span class="keyword">public</span> <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html">AesEncryptor</a> {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <a class="code" href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html">AesCtrEncryptor</a>();</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; ~<a class="code" href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html">AesCtrEncryptor</a>() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html#a27cc6076b6f5edd8c096753ae157a1db">UpdateIv</a>() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html#ac70e6553917ad948fb2c18101de0f8d9">SetIv</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; iv) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; uint32_t block_offset()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> block_offset_; }</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html#a27d2771e7d776085e146cf515f2fb074">EncryptInternal</a>(<span class="keyword">const</span> uint8_t* plaintext,</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keywordtype">size_t</span> plaintext_size,</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; uint8_t* ciphertext) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html#a7cf8a785b54dfbc8960ad50ed4d8844d">NumPaddingBytes</a>(<span class="keywordtype">size_t</span> size) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="comment">// Current block offset.</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; uint32_t block_offset_;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="comment">// Current AES-CTR counter.</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; std::vector&lt;uint8_t&gt; counter_;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="comment">// Encrypted counter.</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; std::vector&lt;uint8_t&gt; encrypted_counter_;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="comment">// Keep track of whether the counter has overflowed.</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keywordtype">bool</span> counter_overflow_;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; DISALLOW_COPY_AND_ASSIGN(<a class="code" href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html">AesCtrEncryptor</a>);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;};</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;<span class="keyword">enum</span> CbcPaddingScheme {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; kNoPadding,</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; kPkcs5Padding,</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; kCtsPadding,</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;};</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;<span class="keyword">const</span> <span class="keywordtype">bool</span> kChainAcrossCalls = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;<span class="comment">// Class which implements AES-CBC (Cipher block chaining) encryption.</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html"> 136</a></span>&#160;<span class="keyword">class </span><a class="code" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html">AesCbcEncryptor</a> : <span class="keyword">public</span> <a class="code" href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html">AesEncryptor</a> {</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <a class="code" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#a36366598b1550470f167bec1ee0ff640">AesCbcEncryptor</a>(CbcPaddingScheme padding_scheme, <span class="keywordtype">bool</span> chain_across_calls);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; ~<a class="code" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html">AesCbcEncryptor</a>() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#ac075650788539c041b465aff6356a2b9">UpdateIv</a>() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#ab5436c698f7691f2558514088559dc7e">SetIv</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; iv) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#a6cdd9be2760a6d50aba4eff18fe6f1b7">EncryptInternal</a>(<span class="keyword">const</span> uint8_t* plaintext,</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordtype">size_t</span> plaintext_size,</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; uint8_t* ciphertext) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#a4e766c8364282bc7f7b1c0dcca9798c1">NumPaddingBytes</a>(<span class="keywordtype">size_t</span> size) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keyword">const</span> CbcPaddingScheme padding_scheme_;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keyword">const</span> <span class="keywordtype">bool</span> chain_across_calls_;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; DISALLOW_COPY_AND_ASSIGN(<a class="code" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html">AesCbcEncryptor</a>);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160;};</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;} <span class="comment">// namespace edash_packager</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160;<span class="preprocessor">#endif // MEDIA_BASE_AES_ENCRYPTOR_H_</span></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCbcEncryptor_html_a6cdd9be2760a6d50aba4eff18fe6f1b7"><div class="ttname"><a href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#a6cdd9be2760a6d50aba4eff18fe6f1b7">edash_packager::media::AesCbcEncryptor::EncryptInternal</a></div><div class="ttdeci">bool EncryptInternal(const uint8_t *plaintext, size_t plaintext_size, uint8_t *ciphertext) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00197">aes_encryptor.cc:197</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCbcEncryptor_html_ac075650788539c041b465aff6356a2b9"><div class="ttname"><a href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#ac075650788539c041b465aff6356a2b9">edash_packager::media::AesCbcEncryptor::UpdateIv</a></div><div class="ttdeci">void UpdateIv() override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00177">aes_encryptor.cc:177</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCtrEncryptor_html_a27cc6076b6f5edd8c096753ae157a1db"><div class="ttname"><a href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html#a27cc6076b6f5edd8c096753ae157a1db">edash_packager::media::AesCtrEncryptor::UpdateIv</a></div><div class="ttdeci">void UpdateIv() override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00094">aes_encryptor.cc:94</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCtrEncryptor_html_a7cf8a785b54dfbc8960ad50ed4d8844d"><div class="ttname"><a href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html#a7cf8a785b54dfbc8960ad50ed4d8844d">edash_packager::media::AesCtrEncryptor::NumPaddingBytes</a></div><div class="ttdeci">size_t NumPaddingBytes(size_t size) const override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00161">aes_encryptor.cc:161</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCtrEncryptor_html_ac70e6553917ad948fb2c18101de0f8d9"><div class="ttname"><a href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html#ac70e6553917ad948fb2c18101de0f8d9">edash_packager::media::AesCtrEncryptor::SetIv</a></div><div class="ttdeci">bool SetIv(const std::vector&lt; uint8_t &gt; &amp;iv) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00124">aes_encryptor.cc:124</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesEncryptor_html"><div class="ttname"><a href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html">edash_packager::media::AesEncryptor</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/df0/aes__encryptor_8h_source.html#l00024">aes_encryptor.h:24</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCbcEncryptor_html_a4e766c8364282bc7f7b1c0dcca9798c1"><div class="ttname"><a href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#a4e766c8364282bc7f7b1c0dcca9798c1">edash_packager::media::AesCbcEncryptor::NumPaddingBytes</a></div><div class="ttdeci">size_t NumPaddingBytes(size_t size) const override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00261">aes_encryptor.cc:261</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesEncryptor_html_a741ad288803fc1c609dcc574ef797280"><div class="ttname"><a href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a741ad288803fc1c609dcc574ef797280">edash_packager::media::AesEncryptor::iv</a></div><div class="ttdeci">const std::vector&lt; uint8_t &gt; &amp; iv() const </div><div class="ttdef"><b>Definition:</b> <a href="../../d1/df0/aes__encryptor_8h_source.html#l00062">aes_encryptor.h:62</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesEncryptor_html_ad71d9a5010d0855037af761ad2389ab0"><div class="ttname"><a href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#ad71d9a5010d0855037af761ad2389ab0">edash_packager::media::AesEncryptor::EncryptInternal</a></div><div class="ttdeci">virtual bool EncryptInternal(const uint8_t *plaintext, size_t plaintext_size, uint8_t *ciphertext)=0</div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCtrEncryptor_html_a27d2771e7d776085e146cf515f2fb074"><div class="ttname"><a href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html#a27d2771e7d776085e146cf515f2fb074">edash_packager::media::AesCtrEncryptor::EncryptInternal</a></div><div class="ttdeci">bool EncryptInternal(const uint8_t *plaintext, size_t plaintext_size, uint8_t *ciphertext) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00137">aes_encryptor.cc:137</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesEncryptor_html_a23724f4f7a8a94599ced13878af59d51"><div class="ttname"><a href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a23724f4f7a8a94599ced13878af59d51">edash_packager::media::AesEncryptor::UpdateIv</a></div><div class="ttdeci">virtual void UpdateIv()=0</div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCtrEncryptor_html"><div class="ttname"><a href="../../dd/d79/classedash__packager_1_1media_1_1AesCtrEncryptor.html">edash_packager::media::AesCtrEncryptor</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/df0/aes__encryptor_8h_source.html#l00090">aes_encryptor.h:90</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCbcEncryptor_html_ab5436c698f7691f2558514088559dc7e"><div class="ttname"><a href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#ab5436c698f7691f2558514088559dc7e">edash_packager::media::AesCbcEncryptor::SetIv</a></div><div class="ttdeci">bool SetIv(const std::vector&lt; uint8_t &gt; &amp;iv) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00187">aes_encryptor.cc:187</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCbcEncryptor_html_a36366598b1550470f167bec1ee0ff640"><div class="ttname"><a href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html#a36366598b1550470f167bec1ee0ff640">edash_packager::media::AesCbcEncryptor::AesCbcEncryptor</a></div><div class="ttdeci">AesCbcEncryptor(CbcPaddingScheme padding_scheme, bool chain_across_calls)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00166">aes_encryptor.cc:166</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesEncryptor_html_a49631d3d3d834bf7d78e0d51d7b33651"><div class="ttname"><a href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a49631d3d3d834bf7d78e0d51d7b33651">edash_packager::media::AesEncryptor::InitializeWithRandomIv</a></div><div class="ttdeci">bool InitializeWithRandomIv(const std::vector&lt; uint8_t &gt; &amp;key, uint8_t iv_size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00043">aes_encryptor.cc:43</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesEncryptor_html_aa62b508ead94c483e2186e30da442faa"><div class="ttname"><a href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#aa62b508ead94c483e2186e30da442faa">edash_packager::media::AesEncryptor::InitializeWithIv</a></div><div class="ttdeci">bool InitializeWithIv(const std::vector&lt; uint8_t &gt; &amp;key, const std::vector&lt; uint8_t &gt; &amp;iv)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/da4/aes__encryptor_8cc_source.html#l00055">aes_encryptor.cc:55</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesEncryptor_html_a36022a2b0a3c89222030a2d8d8d5dfff"><div class="ttname"><a href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a36022a2b0a3c89222030a2d8d8d5dfff">edash_packager::media::AesEncryptor::NumPaddingBytes</a></div><div class="ttdeci">virtual size_t NumPaddingBytes(size_t size) const =0</div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCbcEncryptor_html"><div class="ttname"><a href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html">edash_packager::media::AesCbcEncryptor</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/df0/aes__encryptor_8h_source.html#l00136">aes_encryptor.h:136</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesEncryptor_html_a90d1ed31ee6c25dd0b27cb48c1366699"><div class="ttname"><a href="../../dc/d92/classedash__packager_1_1media_1_1AesEncryptor.html#a90d1ed31ee6c25dd0b27cb48c1366699">edash_packager::media::AesEncryptor::SetIv</a></div><div class="ttdeci">virtual bool SetIv(const std::vector&lt; uint8_t &gt; &amp;iv)=0</div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Mon Apr 4 2016 16:08:31 for DASH Media Packaging SDK by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="../../doxygen.png" alt="doxygen"/>
</a> 1.8.6
</small></address>
</body>
</html>