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<a href="aes_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at></span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This file is part of FFmpeg.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * FFmpeg is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * License as published by the Free Software Foundation; either</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * version 2.1 of the License, or (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * FFmpeg is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * License along with FFmpeg; if not, write to the Free Software</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#ifndef AVUTIL_AES_H</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span><span class="preprocessor">#define AVUTIL_AES_H</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <stdint.h></span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="attributes_8h.html">attributes.h</a>"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="libavutil_2version_8h.html">version.h</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * @defgroup lavu_aes AES</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * @ingroup lavu_crypto</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * @{</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="group__lavu__aes.html#ga33e4afb2c0eb4d7ead8a5b0a7fed4142">av_aes_size</a>;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">struct </span>AVAES;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"></span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * Allocate an AVAES context.</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">struct </span>AVAES *<a class="code" href="group__lavu__aes.html#ga82fd4287891dc9fe98ecfe26e1a66bbb">av_aes_alloc</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"></span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * Initialize an AVAES context.</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * @param key_bits 128, 192 or 256</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * @param decrypt 0 for encryption, 1 for decryption</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keywordtype">int</span> <a class="code" href="group__lavu__aes.html#ga54975ad71f0eab2287e3e94d561d0aa4">av_aes_init</a>(<span class="keyword">struct</span> AVAES *a, <span class="keyword">const</span> uint8_t *key, <span class="keywordtype">int</span> key_bits, <span class="keywordtype">int</span> decrypt);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"></span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * Encrypt or decrypt a buffer using a previously initialized context.</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * @param count number of 16 byte blocks</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * @param dst destination array, can be equal to src</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * @param src source array, can be equal to dst</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * @param iv initialization vector for CBC mode, if NULL then ECB will be used</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * @param decrypt 0 for encryption, 1 for decryption</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keywordtype">void</span> <a class="code" href="group__lavu__aes.html#gae2572febc1bdf0b6dcb8b313da69e06f">av_aes_crypt</a>(<span class="keyword">struct</span> AVAES *a, uint8_t *dst, <span class="keyword">const</span> uint8_t *src, <span class="keywordtype">int</span> count, uint8_t *iv, <span class="keywordtype">int</span> decrypt);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"></span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> * @}</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#endif </span><span class="comment">/* AVUTIL_AES_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="group__lavu__aes_html_gae2572febc1bdf0b6dcb8b313da69e06f"><div class="ttname"><a href="group__lavu__aes.html#gae2572febc1bdf0b6dcb8b313da69e06f">av_aes_crypt</a></div><div class="ttdeci">void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)</div><div class="ttdoc">Encrypt or decrypt a buffer using a previously initialized context. </div></div>
<div class="ttc" id="group__lavu__aes_html_ga33e4afb2c0eb4d7ead8a5b0a7fed4142"><div class="ttname"><a href="group__lavu__aes.html#ga33e4afb2c0eb4d7ead8a5b0a7fed4142">av_aes_size</a></div><div class="ttdeci">const int av_aes_size</div></div>
<div class="ttc" id="attributes_8h_html"><div class="ttname"><a href="attributes_8h.html">attributes.h</a></div><div class="ttdoc">Macro definitions for various function/variable attributes. </div></div>
<div class="ttc" id="group__lavu__aes_html_ga82fd4287891dc9fe98ecfe26e1a66bbb"><div class="ttname"><a href="group__lavu__aes.html#ga82fd4287891dc9fe98ecfe26e1a66bbb">av_aes_alloc</a></div><div class="ttdeci">struct AVAES * av_aes_alloc(void)</div><div class="ttdoc">Allocate an AVAES context. </div></div>
<div class="ttc" id="libavutil_2version_8h_html"><div class="ttname"><a href="libavutil_2version_8h.html">version.h</a></div><div class="ttdoc">Libavutil version macros. </div></div>
<div class="ttc" id="group__lavu__aes_html_ga54975ad71f0eab2287e3e94d561d0aa4"><div class="ttname"><a href="group__lavu__aes.html#ga54975ad71f0eab2287e3e94d561d0aa4">av_aes_init</a></div><div class="ttdeci">int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt)</div><div class="ttdoc">Initialize an AVAES context. </div></div>
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