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<div id="projectname">libaaruformat<span id="projectnumber"> 1.0</span>
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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<div class="headertitle"><div class="title">sha256.c</div></div>
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<a href="sha256_8c.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>
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<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>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * Reference: FIPS PUB 180-4.</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include <stdbool.h></span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include <stdint.h></span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include <stdio.h></span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include <string.h></span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include "<a class="code" href="decls_8h.html">decls.h</a>"</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include "<a class="code" href="sha256_8h.html">sha256.h</a>"</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#ifndef AARU_LOCAL</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"><a class="line" href="sha256_8c.html#a8a7eac34f7a0caaa0d4a57e9627ba173"> 15</a></span><span class="preprocessor">#define AARU_LOCAL static</span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#if defined(_MSC_VER)</span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#define ROTR32(x, n) _rotr((x), (n))</span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"><a class="line" href="sha256_8c.html#a4b0e17ca4e86b51c122d174c3e0ab483"> 21</a></span><span class="preprocessor">#define ROTR32(x, n) (((x) >> (n)) | ((x) << (32 - (n))))</span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"><a class="line" href="sha256_8c.html#ab0a0d1ad13c7e4d3cb38c89f7127c85a"> 24</a></span><span class="preprocessor">#define Ch(x, y, z) (((x) & (y)) ^ (~(x) & (z)))</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"><a class="line" href="sha256_8c.html#a447cd1d7fb703b62666400976be24bf3"> 25</a></span><span class="preprocessor">#define Maj(x, y, z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"><a class="line" href="sha256_8c.html#a96d7103a3e033278293207e23a9187cd"> 26</a></span><span class="preprocessor">#define SIGMA0(x) (ROTR32((x), 2) ^ ROTR32((x), 13) ^ ROTR32((x), 22))</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"><a class="line" href="sha256_8c.html#ad73ff0c2b937d2657b21f58eca4d1d7c"> 27</a></span><span class="preprocessor">#define SIGMA1(x) (ROTR32((x), 6) ^ ROTR32((x), 11) ^ ROTR32((x), 25))</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"><a class="line" href="sha256_8c.html#a672bd39bdf2f6dc295a23ddd109175ff"> 28</a></span><span class="preprocessor">#define sigma0(x) (ROTR32((x), 7) ^ ROTR32((x), 18) ^ ((x) >> 3))</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"><a class="line" href="sha256_8c.html#a0347251dc63b7abe5d4c500544c24a97"> 29</a></span><span class="preprocessor">#define sigma1(x) (ROTR32((x), 17) ^ ROTR32((x), 19) ^ ((x) >> 10))</span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="foldopen" id="foldopen00031" data-start="{" data-end="};">
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"><a class="line" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64"> 31</a></span><span class="keyword">static</span> <span class="keyword">const</span> uint32_t <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>[64] = {</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2};</div>
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</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="foldopen" id="foldopen00041" data-start="{" data-end="}">
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"><a class="line" href="sha256_8c.html#aff30aeb7e0231f2e4a7b5902e947bc9f"> 41</a></span><a class="code hl_define" href="decls_8h.html#a8a7eac34f7a0caaa0d4a57e9627ba173">AARU_LOCAL</a> <span class="keywordtype">void</span> <a class="code hl_function" href="sha256_8c.html#aff30aeb7e0231f2e4a7b5902e947bc9f">sha256_transform</a>(uint32_t state[8], <span class="keyword">const</span> uint8_t block[64])</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span>{</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> uint32_t W[64];</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i < 16; i++)</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> W[i] = ((uint32_t)block[i * 4] << 24) | ((uint32_t)block[i * 4 + 1] << 16) | ((uint32_t)block[i * 4 + 2] << 8) |</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> (uint32_t)block[i * 4 + 3];</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 16; i < 64; i++) W[i] = <a class="code hl_define" href="sha256_8c.html#a0347251dc63b7abe5d4c500544c24a97">sigma1</a>(W[i - 2]) + W[i - 7] + <a class="code hl_define" href="sha256_8c.html#a672bd39bdf2f6dc295a23ddd109175ff">sigma0</a>(W[i - 15]) + W[i - 16];</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> uint32_t a = state[0], b = state[1], c = state[2], d = state[3], e = state[4], f = state[5], g = state[6],</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> h = state[7];</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i < 64; i++)</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> {</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> uint32_t T1 = h + <a class="code hl_define" href="sha256_8c.html#ad73ff0c2b937d2657b21f58eca4d1d7c">SIGMA1</a>(e) + <a class="code hl_define" href="sha256_8c.html#ab0a0d1ad13c7e4d3cb38c89f7127c85a">Ch</a>(e, f, g) + <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>[i] + W[i];</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> uint32_t T2 = <a class="code hl_define" href="sha256_8c.html#a96d7103a3e033278293207e23a9187cd">SIGMA0</a>(a) + <a class="code hl_define" href="sha256_8c.html#a447cd1d7fb703b62666400976be24bf3">Maj</a>(a, b, c);</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> h = g;</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> g = f;</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> f = e;</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> e = d + T1;</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> d = c;</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> c = b;</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> b = a;</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> a = T1 + T2;</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> }</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> state[0] += a;</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> state[1] += b;</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> state[2] += c;</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> state[3] += d;</div>
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||
|
|
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> state[4] += e;</div>
|
||
|
|
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> state[5] += f;</div>
|
||
|
|
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> state[6] += g;</div>
|
||
|
|
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> state[7] += h;</div>
|
||
|
|
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span>}</div>
|
||
|
|
</div>
|
||
|
|
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
|
||
|
|
<div class="foldopen" id="foldopen00076" data-start="{" data-end="}">
|
||
|
|
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"><a class="line" href="decls_8h.html#a075527f7b15b70dc7028cf91d9062a90"> 76</a></span><a class="code hl_define" href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a> <span class="keywordtype">void</span> <a class="code hl_define" href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a> <a class="code hl_function" href="sha256_8c.html#a075527f7b15b70dc7028cf91d9062a90">aaruf_sha256_init</a>(<a class="code hl_struct" href="structsha256__ctx.html">sha256_ctx</a> *ctx)</div>
|
||
|
|
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span>{</div>
|
||
|
|
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[0] = 0x6a09e667U;</div>
|
||
|
|
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[1] = 0xbb67ae85U;</div>
|
||
|
|
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[2] = 0x3c6ef372U;</div>
|
||
|
|
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[3] = 0xa54ff53aU;</div>
|
||
|
|
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[4] = 0x510e527fU;</div>
|
||
|
|
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[5] = 0x9b05688cU;</div>
|
||
|
|
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[6] = 0x1f83d9abU;</div>
|
||
|
|
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[7] = 0x5be0cd19U;</div>
|
||
|
|
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#a7b6c100e9d3e50e4f417b446a378ee87">bitcount</a> = 0ULL;</div>
|
||
|
|
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> memset(ctx-><a class="code hl_variable" href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2">buffer</a>, 0, <span class="keyword">sizeof</span>(ctx-><a class="code hl_variable" href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2">buffer</a>));</div>
|
||
|
|
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span>}</div>
|
||
|
|
</div>
|
||
|
|
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
|
||
|
|
<div class="foldopen" id="foldopen00090" data-start="{" data-end="}">
|
||
|
|
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"><a class="line" href="decls_8h.html#ab5f178e5ec94596e44a3fdb001d4a5f8"> 90</a></span><a class="code hl_define" href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a> <span class="keywordtype">void</span> <a class="code hl_define" href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a> <a class="code hl_function" href="sha256_8c.html#a67fb5733f7c2dd5a7a02963b46eeaacf">aaruf_sha256_update</a>(<a class="code hl_struct" href="structsha256__ctx.html">sha256_ctx</a> *ctx, <span class="keyword">const</span> <span class="keywordtype">void</span> *data_ptr, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> len)</div>
|
||
|
|
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span>{</div>
|
||
|
|
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordflow">if</span>(len == 0) <span class="keywordflow">return</span>;</div>
|
||
|
|
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keyword">const</span> uint8_t *data = (<span class="keyword">const</span> uint8_t *)data_ptr;</div>
|
||
|
|
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> uint32_t idx = (uint32_t)((ctx-><a class="code hl_variable" href="structsha256__ctx.html#a7b6c100e9d3e50e4f417b446a378ee87">bitcount</a> >> 3) & 0x3F);</div>
|
||
|
|
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> ctx-><a class="code hl_variable" href="structsha256__ctx.html#a7b6c100e9d3e50e4f417b446a378ee87">bitcount</a> += ((uint64_t)len) << 3;</div>
|
||
|
|
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> uint32_t space = 64 - idx;</div>
|
||
|
|
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
|
||
|
|
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">if</span>(len >= space)</div>
|
||
|
|
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> {</div>
|
||
|
|
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> memcpy(ctx-><a class="code hl_variable" href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2">buffer</a> + idx, data, space);</div>
|
||
|
|
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <a class="code hl_function" href="sha256_8c.html#aff30aeb7e0231f2e4a7b5902e947bc9f">sha256_transform</a>(ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>, ctx-><a class="code hl_variable" href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2">buffer</a>);</div>
|
||
|
|
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> data += space;</div>
|
||
|
|
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> len -= space;</div>
|
||
|
|
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">while</span>(len >= 64)</div>
|
||
|
|
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> {</div>
|
||
|
|
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <a class="code hl_function" href="sha256_8c.html#aff30aeb7e0231f2e4a7b5902e947bc9f">sha256_transform</a>(ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>, data);</div>
|
||
|
|
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> data += 64;</div>
|
||
|
|
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> len -= 64;</div>
|
||
|
|
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> }</div>
|
||
|
|
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> idx = 0;</div>
|
||
|
|
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> }</div>
|
||
|
|
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">if</span>(len > 0) memcpy(ctx-><a class="code hl_variable" href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2">buffer</a> + idx, data, len);</div>
|
||
|
|
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span>}</div>
|
||
|
|
</div>
|
||
|
|
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div>
|
||
|
|
<div class="foldopen" id="foldopen00115" data-start="{" data-end="}">
|
||
|
|
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"><a class="line" href="decls_8h.html#a6456150dad701ca7f071940ef169c4cf"> 115</a></span><a class="code hl_define" href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a> <span class="keywordtype">void</span> <a class="code hl_define" href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a> <a class="code hl_function" href="sha256_8c.html#a11a74de4ad5df6741280b5fabcf8f79a">aaruf_sha256_final</a>(<a class="code hl_struct" href="structsha256__ctx.html">sha256_ctx</a> *ctx, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *out)</div>
|
||
|
|
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span>{</div>
|
||
|
|
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> uint8_t pad[64];</div>
|
||
|
|
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> memset(pad, 0, <span class="keyword">sizeof</span>(pad));</div>
|
||
|
|
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> pad[0] = 0x80;</div>
|
||
|
|
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> </div>
|
||
|
|
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> uint8_t len_be[8];</div>
|
||
|
|
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> uint64_t bits = ctx-><a class="code hl_variable" href="structsha256__ctx.html#a7b6c100e9d3e50e4f417b446a378ee87">bitcount</a>;</div>
|
||
|
|
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i < 8; i++) len_be[7 - i] = (uint8_t)(bits >> (i * 8));</div>
|
||
|
|
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
|
||
|
|
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> uint32_t idx = (uint32_t)((ctx-><a class="code hl_variable" href="structsha256__ctx.html#a7b6c100e9d3e50e4f417b446a378ee87">bitcount</a> >> 3) & 0x3F);</div>
|
||
|
|
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> uint32_t pad_len = (idx < 56) ? (56 - idx) : (120 - idx);</div>
|
||
|
|
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> </div>
|
||
|
|
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <a class="code hl_function" href="sha256_8c.html#a67fb5733f7c2dd5a7a02963b46eeaacf">aaruf_sha256_update</a>(ctx, pad, pad_len);</div>
|
||
|
|
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <a class="code hl_function" href="sha256_8c.html#a67fb5733f7c2dd5a7a02963b46eeaacf">aaruf_sha256_update</a>(ctx, len_be, 8);</div>
|
||
|
|
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
|
||
|
|
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i < 8; i++)</div>
|
||
|
|
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> {</div>
|
||
|
|
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> out[i * 4] = (uint8_t)(ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[i] >> 24);</div>
|
||
|
|
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> out[i * 4 + 1] = (uint8_t)(ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[i] >> 16);</div>
|
||
|
|
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> out[i * 4 + 2] = (uint8_t)(ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[i] >> 8);</div>
|
||
|
|
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> out[i * 4 + 3] = (uint8_t)(ctx-><a class="code hl_variable" href="structsha256__ctx.html#ad00abdc8fa17ca7b6581b14309527d86">state</a>[i]);</div>
|
||
|
|
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> }</div>
|
||
|
|
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> memset(ctx-><a class="code hl_variable" href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2">buffer</a>, 0, <span class="keyword">sizeof</span>(ctx-><a class="code hl_variable" href="structsha256__ctx.html#a992c56715c7da465ec39b11ca5e659f2">buffer</a>));</div>
|
||
|
|
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span>}</div>
|
||
|
|
</div>
|
||
|
|
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
|
||
|
|
<div class="foldopen" id="foldopen00141" data-start="{" data-end="}">
|
||
|
|
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"><a class="line" href="decls_8h.html#a7bae173c313a0752035e6eac045326e8"> 141</a></span><a class="code hl_define" href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a> <span class="keywordtype">void</span> <a class="code hl_define" href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a> <a class="code hl_function" href="sha256_8c.html#a7bae173c313a0752035e6eac045326e8">aaruf_sha256_buffer</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> size, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result)</div>
|
||
|
|
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span>{</div>
|
||
|
|
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <a class="code hl_struct" href="structsha256__ctx.html">sha256_ctx</a> ctx;</div>
|
||
|
|
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <a class="code hl_function" href="sha256_8c.html#a075527f7b15b70dc7028cf91d9062a90">aaruf_sha256_init</a>(&ctx);</div>
|
||
|
|
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <a class="code hl_function" href="sha256_8c.html#a67fb5733f7c2dd5a7a02963b46eeaacf">aaruf_sha256_update</a>(&ctx, data, size);</div>
|
||
|
|
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <a class="code hl_function" href="sha256_8c.html#a11a74de4ad5df6741280b5fabcf8f79a">aaruf_sha256_final</a>(&ctx, result);</div>
|
||
|
|
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span>}</div>
|
||
|
|
</div>
|
||
|
|
<div class="ttc" id="adecls_8h_html"><div class="ttname"><a href="decls_8h.html">decls.h</a></div></div>
|
||
|
|
<div class="ttc" id="adecls_8h_html_a018e0da1c1f7e4f6187a982c0e40e056"><div class="ttname"><a href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a></div><div class="ttdeci">#define AARU_CALL</div><div class="ttdef"><b>Definition</b> <a href="decls_8h_source.html#l00045">decls.h:45</a></div></div>
|
||
|
|
<div class="ttc" id="adecls_8h_html_a8a7eac34f7a0caaa0d4a57e9627ba173"><div class="ttname"><a href="decls_8h.html#a8a7eac34f7a0caaa0d4a57e9627ba173">AARU_LOCAL</a></div><div class="ttdeci">#define AARU_LOCAL</div><div class="ttdef"><b>Definition</b> <a href="decls_8h_source.html#l00055">decls.h:55</a></div></div>
|
||
|
|
<div class="ttc" id="adecls_8h_html_a9001412c35f3c92d3a9320d27b0d97f9"><div class="ttname"><a href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a></div><div class="ttdeci">#define AARU_EXPORT</div><div class="ttdef"><b>Definition</b> <a href="decls_8h_source.html#l00054">decls.h:54</a></div></div>
|
||
|
|
<div class="ttc" id="asha256_8c_html_a0347251dc63b7abe5d4c500544c24a97"><div class="ttname"><a href="sha256_8c.html#a0347251dc63b7abe5d4c500544c24a97">sigma1</a></div><div class="ttdeci">#define sigma1(x)</div><div class="ttdef"><b>Definition</b> <a href="#l00029">sha256.c:29</a></div></div>
|
||
|
|
<div class="ttc" id="asha256_8c_html_a075527f7b15b70dc7028cf91d9062a90"><div class="ttname"><a href="sha256_8c.html#a075527f7b15b70dc7028cf91d9062a90">aaruf_sha256_init</a></div><div class="ttdeci">void aaruf_sha256_init(sha256_ctx *ctx)</div><div class="ttdef"><b>Definition</b> <a href="#l00076">sha256.c:76</a></div></div>
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<div class="ttc" id="asha256_8c_html_a11a74de4ad5df6741280b5fabcf8f79a"><div class="ttname"><a href="sha256_8c.html#a11a74de4ad5df6741280b5fabcf8f79a">aaruf_sha256_final</a></div><div class="ttdeci">void aaruf_sha256_final(sha256_ctx *ctx, unsigned char *out)</div><div class="ttdef"><b>Definition</b> <a href="#l00115">sha256.c:115</a></div></div>
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<div class="ttc" id="asha256_8c_html_a22c6551e88df4c5c42fce3d0641adb64"><div class="ttname"><a href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a></div><div class="ttdeci">static const uint32_t K[64]</div><div class="ttdef"><b>Definition</b> <a href="#l00031">sha256.c:31</a></div></div>
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<div class="ttc" id="asha256_8c_html_a447cd1d7fb703b62666400976be24bf3"><div class="ttname"><a href="sha256_8c.html#a447cd1d7fb703b62666400976be24bf3">Maj</a></div><div class="ttdeci">#define Maj(x, y, z)</div><div class="ttdef"><b>Definition</b> <a href="#l00025">sha256.c:25</a></div></div>
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<div class="ttc" id="asha256_8c_html_a672bd39bdf2f6dc295a23ddd109175ff"><div class="ttname"><a href="sha256_8c.html#a672bd39bdf2f6dc295a23ddd109175ff">sigma0</a></div><div class="ttdeci">#define sigma0(x)</div><div class="ttdef"><b>Definition</b> <a href="#l00028">sha256.c:28</a></div></div>
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<div class="ttc" id="asha256_8c_html_a67fb5733f7c2dd5a7a02963b46eeaacf"><div class="ttname"><a href="sha256_8c.html#a67fb5733f7c2dd5a7a02963b46eeaacf">aaruf_sha256_update</a></div><div class="ttdeci">void aaruf_sha256_update(sha256_ctx *ctx, const void *data_ptr, unsigned long len)</div><div class="ttdef"><b>Definition</b> <a href="#l00090">sha256.c:90</a></div></div>
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<div class="ttc" id="asha256_8c_html_a7bae173c313a0752035e6eac045326e8"><div class="ttname"><a href="sha256_8c.html#a7bae173c313a0752035e6eac045326e8">aaruf_sha256_buffer</a></div><div class="ttdeci">void aaruf_sha256_buffer(const void *data, unsigned long size, unsigned char *result)</div><div class="ttdef"><b>Definition</b> <a href="#l00141">sha256.c:141</a></div></div>
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<div class="ttc" id="asha256_8c_html_a96d7103a3e033278293207e23a9187cd"><div class="ttname"><a href="sha256_8c.html#a96d7103a3e033278293207e23a9187cd">SIGMA0</a></div><div class="ttdeci">#define SIGMA0(x)</div><div class="ttdef"><b>Definition</b> <a href="#l00026">sha256.c:26</a></div></div>
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<div class="ttc" id="asha256_8c_html_ab0a0d1ad13c7e4d3cb38c89f7127c85a"><div class="ttname"><a href="sha256_8c.html#ab0a0d1ad13c7e4d3cb38c89f7127c85a">Ch</a></div><div class="ttdeci">#define Ch(x, y, z)</div><div class="ttdef"><b>Definition</b> <a href="#l00024">sha256.c:24</a></div></div>
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<div class="ttc" id="asha256_8c_html_ad73ff0c2b937d2657b21f58eca4d1d7c"><div class="ttname"><a href="sha256_8c.html#ad73ff0c2b937d2657b21f58eca4d1d7c">SIGMA1</a></div><div class="ttdeci">#define SIGMA1(x)</div><div class="ttdef"><b>Definition</b> <a href="#l00027">sha256.c:27</a></div></div>
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<div class="ttc" id="asha256_8c_html_aff30aeb7e0231f2e4a7b5902e947bc9f"><div class="ttname"><a href="sha256_8c.html#aff30aeb7e0231f2e4a7b5902e947bc9f">sha256_transform</a></div><div class="ttdeci">static void sha256_transform(uint32_t state[8], const uint8_t block[64])</div><div class="ttdef"><b>Definition</b> <a href="#l00041">sha256.c:41</a></div></div>
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<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="sha256_8h_source.html#l00041">sha256.h:42</a></div></div>
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<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="sha256_8h_source.html#l00044">sha256.h:44</a></div></div>
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<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="sha256_8h_source.html#l00045">sha256.h:45</a></div></div>
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<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="sha256_8h_source.html#l00043">sha256.h:43</a></div></div>
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