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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<a href="sha256_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Public domain / MIT SHA-256 implementation for libaaruformat.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * This code is released into the public domain. If that is not recognized</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * in your jurisdiction, you may instead treat it under the terms of the</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * MIT license reproduced below.</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> *</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * MIT License</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * of this software and associated documentation files (the &quot;Software&quot;), to deal</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * in the Software without restriction, including without limitation the rights</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * copies of the Software, and to permit persons to whom the Software is</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> *</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * copies or substantial portions of the Software.</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> *</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="comment"> * SOFTWARE.</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="comment"> */</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#ifndef LIBAARUFORMAT_SHA256_H</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#define LIBAARUFORMAT_SHA256_H</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span>{</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#ifndef SHA256_DIGEST_LENGTH</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"><a class="line" href="sha256_8h.html#aa9cf0abf87b30c4c63e9c7e89c590579"> 38</a></span><span class="preprocessor">#define SHA256_DIGEST_LENGTH 32</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="foldopen" id="foldopen00041" data-start="{" data-end="};">
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"><a class="line" href="structsha256__ctx.html"> 41</a></span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> {</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86"> 43</a></span> uint32_t <a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[8];</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"><a class="line" href="structsha256__ctx.html#a7b6c100e9d3e50e4f417b446a378ee87"> 44</a></span> uint64_t <a class="code hl_variable" href="structsha256__ctx.html#a7b6c100e9d3e50e4f417b446a378ee87">bitcount</a>; <span class="comment">/* total bits processed */</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2"> 45</a></span> uint8_t <a class="code hl_variable" href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2">buffer</a>[64];</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> } <a class="code hl_struct" href="structsha256__ctx.html">sha256_ctx</a>;</div>
</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span>}</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="preprocessor">#endif </span><span class="comment">/* LIBAARUFORMAT_SHA256_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="astructsha256__ctx_html"><div class="ttname"><a href="structsha256__ctx.html">sha256_ctx</a></div><div class="ttdef"><b>Definition</b> <a href="#l00041">sha256.h:42</a></div></div>
<div class="ttc" id="astructsha256__ctx_html_a7b6c100e9d3e50e4f417b446a378ee87"><div class="ttname"><a href="structsha256__ctx.html#a7b6c100e9d3e50e4f417b446a378ee87">sha256_ctx::bitcount</a></div><div class="ttdeci">uint64_t bitcount</div><div class="ttdef"><b>Definition</b> <a href="#l00044">sha256.h:44</a></div></div>
<div class="ttc" id="astructsha256__ctx_html_a992c56715c7da465ec39b11ca5e659f2"><div class="ttname"><a href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2">sha256_ctx::buffer</a></div><div class="ttdeci">uint8_t buffer[64]</div><div class="ttdef"><b>Definition</b> <a href="#l00045">sha256.h:45</a></div></div>
<div class="ttc" id="astructsha256__ctx_html_ad00abdc8fa17ca7b6581b14309527d86"><div class="ttname"><a href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">sha256_ctx::state</a></div><div class="ttdeci">uint32_t state[8]</div><div class="ttdef"><b>Definition</b> <a href="#l00043">sha256.h:43</a></div></div>
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