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<li class="navelem"><a class="el" href="dir_8d855866ba5d436d839c7fc557836cd9.html">libavutil</a></li> </ul>
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<a href="hmac_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) 2012 Martin Storsjo</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_HMAC_H</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span><span class="preprocessor">#define AVUTIL_HMAC_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="libavutil_2version_8h.html">version.h</a>"</span><span class="comment"></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * @defgroup lavu_hmac HMAC</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * @ingroup lavu_crypto</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * @{</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="group__lavu__hmac.html#gaec34f18155d20236c9f39961bb58f7d4"> 33</a></span> <span class="keyword">enum</span> <a class="code" href="group__lavu__hmac.html#gaec34f18155d20236c9f39961bb58f7d4">AVHMACType</a> {</div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a063ecd7e758d4abcd438aba0b9708c7a"> 34</a></span>  <a class="code" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a063ecd7e758d4abcd438aba0b9708c7a">AV_HMAC_MD5</a>,</div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a421f7f38b635e8d5ef1cc45d1867d5a7"> 35</a></span>  <a class="code" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a421f7f38b635e8d5ef1cc45d1867d5a7">AV_HMAC_SHA1</a>,</div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a283c3d421f8279ec3530d0bd0cb56313"> 36</a></span>  <a class="code" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a283c3d421f8279ec3530d0bd0cb56313">AV_HMAC_SHA224</a>,</div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a2f0a1a712c6e85b5149baa0780dcda4c"> 37</a></span>  <a class="code" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a2f0a1a712c6e85b5149baa0780dcda4c">AV_HMAC_SHA256</a>,</div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a268dfcdccbe89e48a662989087728ff7"> 38</a></span>  <a class="code" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a268dfcdccbe89e48a662989087728ff7">AV_HMAC_SHA384</a> = 12,</div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a811a3754bdc32d9e258c6504759a6608"> 39</a></span>  <a class="code" href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a811a3754bdc32d9e258c6504759a6608">AV_HMAC_SHA512</a>,</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> };</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676"> 42</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676">AVHMAC</a> <a class="code" href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676">AVHMAC</a>;</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"> * Allocate an AVHMAC context.</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * @param type The hash function used for the HMAC.</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <a class="code" href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676">AVHMAC</a> *<a class="code" href="group__lavu__hmac.html#gaae6685287d6645eb1be86525ecee17ae">av_hmac_alloc</a>(<span class="keyword">enum</span> <a class="code" href="group__lavu__hmac.html#gaec34f18155d20236c9f39961bb58f7d4">AVHMACType</a> type);</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"></span></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"> * Free an AVHMAC context.</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * @param ctx The context to free, may be NULL</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">void</span> <a class="code" href="group__lavu__hmac.html#gaaa2951b832fdc7abed35a9112f7f1a02">av_hmac_free</a>(<a class="code" href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676">AVHMAC</a> *ctx);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"></span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * Initialize an AVHMAC context with an authentication key.</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> * @param ctx The HMAC context</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * @param key The authentication key</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * @param keylen The length of the key, in bytes</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="keywordtype">void</span> <a class="code" href="group__lavu__hmac.html#gae91a0c1f832c269006164b29df7e9aa8">av_hmac_init</a>(<a class="code" href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676">AVHMAC</a> *ctx, <span class="keyword">const</span> uint8_t *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keylen);</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> <span class="comment">/**</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> * Hash data with the HMAC.</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> * @param ctx The HMAC context</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> * @param data The data to hash</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> * @param len The length of the data, in bytes</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keywordtype">void</span> <a class="code" href="group__lavu__hmac.html#ga4c3307cc9b1f331a15e999f8dacb90de">av_hmac_update</a>(<a class="code" href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676">AVHMAC</a> *ctx, <span class="keyword">const</span> uint8_t *data, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len);</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"></span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> * Finish hashing and output the HMAC digest.</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> * @param ctx The HMAC context</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> * @param out The output buffer to write the digest into</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> * @param outlen The length of the out buffer, in bytes</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> * @return The number of bytes written to out, or a negative error code.</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="keywordtype">int</span> <a class="code" href="group__lavu__hmac.html#ga02f0b343d9045500beef1f6b09c650cd">av_hmac_final</a>(<a class="code" href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676">AVHMAC</a> *ctx, uint8_t *out, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> outlen);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"></span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> * Hash an array of data with a key.</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> * @param ctx The HMAC context</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> * @param data The data to hash</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> * @param len The length of the data, in bytes</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> * @param key The authentication key</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> * @param keylen The length of the key, in bytes</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> * @param out The output buffer to write the digest into</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> * @param outlen The length of the out buffer, in bytes</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> * @return The number of bytes written to out, or a negative error code.</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keywordtype">int</span> <a class="code" href="group__lavu__hmac.html#ga22d17ebca8556c49be5c22e706de1ab3">av_hmac_calc</a>(<a class="code" href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676">AVHMAC</a> *ctx, <span class="keyword">const</span> uint8_t *data, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len,</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">const</span> uint8_t *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keylen,</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  uint8_t *out, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> outlen);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"></span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> * @}</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#endif </span><span class="comment">/* AVUTIL_HMAC_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="group__lavu__hmac_html_ga22d17ebca8556c49be5c22e706de1ab3"><div class="ttname"><a href="group__lavu__hmac.html#ga22d17ebca8556c49be5c22e706de1ab3">av_hmac_calc</a></div><div class="ttdeci">int av_hmac_calc(AVHMAC *ctx, const uint8_t *data, unsigned int len, const uint8_t *key, unsigned int keylen, uint8_t *out, unsigned int outlen)</div><div class="ttdoc">Hash an array of data with a key. </div></div>
<div class="ttc" id="group__lavu__hmac_html_gaae6685287d6645eb1be86525ecee17ae"><div class="ttname"><a href="group__lavu__hmac.html#gaae6685287d6645eb1be86525ecee17ae">av_hmac_alloc</a></div><div class="ttdeci">AVHMAC * av_hmac_alloc(enum AVHMACType type)</div><div class="ttdoc">Allocate an AVHMAC context. </div></div>
<div class="ttc" id="group__lavu__hmac_html_gad8c944f9437e65d8e8ebc526bdeee676"><div class="ttname"><a href="group__lavu__hmac.html#gad8c944f9437e65d8e8ebc526bdeee676">AVHMAC</a></div><div class="ttdeci">struct AVHMAC AVHMAC</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00042">hmac.h:42</a></div></div>
<div class="ttc" id="group__lavu__hmac_html_gaec34f18155d20236c9f39961bb58f7d4"><div class="ttname"><a href="group__lavu__hmac.html#gaec34f18155d20236c9f39961bb58f7d4">AVHMACType</a></div><div class="ttdeci">AVHMACType</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00033">hmac.h:33</a></div></div>
<div class="ttc" id="group__lavu__hmac_html_ggaec34f18155d20236c9f39961bb58f7d4a811a3754bdc32d9e258c6504759a6608"><div class="ttname"><a href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a811a3754bdc32d9e258c6504759a6608">AV_HMAC_SHA512</a></div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00039">hmac.h:39</a></div></div>
<div class="ttc" id="group__lavu__hmac_html_ga4c3307cc9b1f331a15e999f8dacb90de"><div class="ttname"><a href="group__lavu__hmac.html#ga4c3307cc9b1f331a15e999f8dacb90de">av_hmac_update</a></div><div class="ttdeci">void av_hmac_update(AVHMAC *ctx, const uint8_t *data, unsigned int len)</div><div class="ttdoc">Hash data with the HMAC. </div></div>
<div class="ttc" id="group__lavu__hmac_html_ggaec34f18155d20236c9f39961bb58f7d4a063ecd7e758d4abcd438aba0b9708c7a"><div class="ttname"><a href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a063ecd7e758d4abcd438aba0b9708c7a">AV_HMAC_MD5</a></div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00034">hmac.h:34</a></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__hmac_html_gae91a0c1f832c269006164b29df7e9aa8"><div class="ttname"><a href="group__lavu__hmac.html#gae91a0c1f832c269006164b29df7e9aa8">av_hmac_init</a></div><div class="ttdeci">void av_hmac_init(AVHMAC *ctx, const uint8_t *key, unsigned int keylen)</div><div class="ttdoc">Initialize an AVHMAC context with an authentication key. </div></div>
<div class="ttc" id="group__lavu__hmac_html_ggaec34f18155d20236c9f39961bb58f7d4a283c3d421f8279ec3530d0bd0cb56313"><div class="ttname"><a href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a283c3d421f8279ec3530d0bd0cb56313">AV_HMAC_SHA224</a></div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00036">hmac.h:36</a></div></div>
<div class="ttc" id="group__lavu__hmac_html_ga02f0b343d9045500beef1f6b09c650cd"><div class="ttname"><a href="group__lavu__hmac.html#ga02f0b343d9045500beef1f6b09c650cd">av_hmac_final</a></div><div class="ttdeci">int av_hmac_final(AVHMAC *ctx, uint8_t *out, unsigned int outlen)</div><div class="ttdoc">Finish hashing and output the HMAC digest. </div></div>
<div class="ttc" id="group__lavu__hmac_html_ggaec34f18155d20236c9f39961bb58f7d4a421f7f38b635e8d5ef1cc45d1867d5a7"><div class="ttname"><a href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a421f7f38b635e8d5ef1cc45d1867d5a7">AV_HMAC_SHA1</a></div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00035">hmac.h:35</a></div></div>
<div class="ttc" id="group__lavu__hmac_html_ggaec34f18155d20236c9f39961bb58f7d4a2f0a1a712c6e85b5149baa0780dcda4c"><div class="ttname"><a href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a2f0a1a712c6e85b5149baa0780dcda4c">AV_HMAC_SHA256</a></div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00037">hmac.h:37</a></div></div>
<div class="ttc" id="group__lavu__hmac_html_gaaa2951b832fdc7abed35a9112f7f1a02"><div class="ttname"><a href="group__lavu__hmac.html#gaaa2951b832fdc7abed35a9112f7f1a02">av_hmac_free</a></div><div class="ttdeci">void av_hmac_free(AVHMAC *ctx)</div><div class="ttdoc">Free an AVHMAC context. </div></div>
<div class="ttc" id="group__lavu__hmac_html_ggaec34f18155d20236c9f39961bb58f7d4a268dfcdccbe89e48a662989087728ff7"><div class="ttname"><a href="group__lavu__hmac.html#ggaec34f18155d20236c9f39961bb58f7d4a268dfcdccbe89e48a662989087728ff7">AV_HMAC_SHA384</a></div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00038">hmac.h:38</a></div></div>
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