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<a href="recovery_2main__impl_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) 2013-2015 Pieter Wuille *</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Distributed under the MIT software license, see the accompanying *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * file COPYING or http://www.opensource.org/licenses/mit-license.php.*</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> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#ifndef _SECP256K1_MODULE_RECOVERY_MAIN_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#define _SECP256K1_MODULE_RECOVERY_MAIN_</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "<a class="code" href="secp256k1__recovery_8h.html">include/secp256k1_recovery.h</a>"</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"><a class="line" href="recovery_2main__impl_8h.html#aa3ef0903a865dc9a6e42dfe61f75a9e5"> 12</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="recovery_2main__impl_8h.html#aa3ef0903a865dc9a6e42dfe61f75a9e5">secp256k1_ecdsa_recoverable_signature_load</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__context__struct.html">secp256k1_context</a>* <a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a>* r, <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a>* s, <span class="keywordtype">int</span>* recid, <span class="keyword">const</span> <a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html">secp256k1_ecdsa_recoverable_signature</a>* sig) {</div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  (void)<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>;</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  <span class="keywordflow">if</span> (<span class="keyword">sizeof</span>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a>) == 32) {</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  <span class="comment">/* When the secp256k1_scalar type is exactly 32 byte, use its</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * representation inside secp256k1_ecdsa_signature, as conversion is very fast.</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * Note that secp256k1_ecdsa_signature_save must use the same representation. */</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  <a class="code" href="glibc__compat_8cpp.html#a0f46826ab0466591e136db24394923cf">memcpy</a>(r, &sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[0], 32);</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <a class="code" href="glibc__compat_8cpp.html#a0f46826ab0466591e136db24394923cf">memcpy</a>(s, &sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[32], 32);</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <a class="code" href="scalar_8h.html#a25cc2d45ae1d1765d07c3313cdf46fa0">secp256k1_scalar_set_b32</a>(r, &sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[0], NULL);</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <a class="code" href="scalar_8h.html#a25cc2d45ae1d1765d07c3313cdf46fa0">secp256k1_scalar_set_b32</a>(s, &sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[32], NULL);</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  }</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  *recid = sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[64];</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> </div><div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="recovery_2main__impl_8h.html#a58a8a03b17aeb5cb4daf2940a58663b9"> 27</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="recovery_2main__impl_8h.html#a58a8a03b17aeb5cb4daf2940a58663b9">secp256k1_ecdsa_recoverable_signature_save</a>(<a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html">secp256k1_ecdsa_recoverable_signature</a>* sig, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a>* r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a>* s, <span class="keywordtype">int</span> recid) {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">if</span> (<span class="keyword">sizeof</span>(<a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a>) == 32) {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <a class="code" href="glibc__compat_8cpp.html#a0f46826ab0466591e136db24394923cf">memcpy</a>(&sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[0], r, 32);</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <a class="code" href="glibc__compat_8cpp.html#a0f46826ab0466591e136db24394923cf">memcpy</a>(&sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[32], s, 32);</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <a class="code" href="scalar_8h.html#a4fa08f8af5a23f505b44c9ef1bec1831">secp256k1_scalar_get_b32</a>(&sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[0], r);</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="scalar_8h.html#a4fa08f8af5a23f505b44c9ef1bec1831">secp256k1_scalar_get_b32</a>(&sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[32], s);</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>  sig-><a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">data</a>[64] = recid;</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> </div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="recovery_2main__impl_8h.html#a37101568f72e98d7b29de6c6a825a289"> 38</a></span> <span class="keywordtype">int</span> <a class="code" href="recovery_2main__impl_8h.html#a37101568f72e98d7b29de6c6a825a289">secp256k1_ecdsa_recoverable_signature_parse_compact</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__context__struct.html">secp256k1_context</a>* <a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, <a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html">secp256k1_ecdsa_recoverable_signature</a>* sig, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *input64, <span class="keywordtype">int</span> recid) {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> r, s;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">int</span> ret = 1;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordtype">int</span> overflow = 0;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  (void)<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(sig != NULL);</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(input64 != NULL);</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(recid >= 0 && recid <= 3);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="scalar_8h.html#a25cc2d45ae1d1765d07c3313cdf46fa0">secp256k1_scalar_set_b32</a>(&r, &input64[0], &overflow);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  ret &= !overflow;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="scalar_8h.html#a25cc2d45ae1d1765d07c3313cdf46fa0">secp256k1_scalar_set_b32</a>(&s, &input64[32], &overflow);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  ret &= !overflow;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">if</span> (ret) {</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="recovery_2main__impl_8h.html#a58a8a03b17aeb5cb4daf2940a58663b9">secp256k1_ecdsa_recoverable_signature_save</a>(sig, &r, &s, recid);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  memset(sig, 0, <span class="keyword">sizeof</span>(*sig));</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  }</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> }</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="recovery_2main__impl_8h.html#ac122392fa6ff6264a7a110875af164b0"> 60</a></span> <span class="keywordtype">int</span> <a class="code" href="recovery_2main__impl_8h.html#ac122392fa6ff6264a7a110875af164b0">secp256k1_ecdsa_recoverable_signature_serialize_compact</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__context__struct.html">secp256k1_context</a>* <a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *output64, <span class="keywordtype">int</span> *recid, <span class="keyword">const</span> <a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html">secp256k1_ecdsa_recoverable_signature</a>* sig) {</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> r, s;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  (void)<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(output64 != NULL);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(sig != NULL);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(recid != NULL);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <a class="code" href="recovery_2main__impl_8h.html#aa3ef0903a865dc9a6e42dfe61f75a9e5">secp256k1_ecdsa_recoverable_signature_load</a>(<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, &r, &s, recid, sig);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="scalar_8h.html#a4fa08f8af5a23f505b44c9ef1bec1831">secp256k1_scalar_get_b32</a>(&output64[0], &r);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <a class="code" href="scalar_8h.html#a4fa08f8af5a23f505b44c9ef1bec1831">secp256k1_scalar_get_b32</a>(&output64[32], &s);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="recovery_2main__impl_8h.html#a16ddfc800140d761bc783e571c34548c"> 74</a></span> <span class="keywordtype">int</span> <a class="code" href="recovery_2main__impl_8h.html#a16ddfc800140d761bc783e571c34548c">secp256k1_ecdsa_recoverable_signature_convert</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__context__struct.html">secp256k1_context</a>* <a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, <a class="code" href="structsecp256k1__ecdsa__signature.html">secp256k1_ecdsa_signature</a>* sig, <span class="keyword">const</span> <a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html">secp256k1_ecdsa_recoverable_signature</a>* sigin) {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> r, s;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">int</span> recid;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  (void)<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(sig != NULL);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(sigin != NULL);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="recovery_2main__impl_8h.html#aa3ef0903a865dc9a6e42dfe61f75a9e5">secp256k1_ecdsa_recoverable_signature_load</a>(<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, &r, &s, &recid, sigin);</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="secp256k1_8c.html#a94e522f94c4819bebf8e854952eb6a8f">secp256k1_ecdsa_signature_save</a>(sig, &r, &s);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> }</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="recovery_2main__impl_8h.html#a1a831ed991717749ed9d200bb9d3f03b"> 87</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="recovery_2main__impl_8h.html#a1a831ed991717749ed9d200bb9d3f03b">secp256k1_ecdsa_sig_recover</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__ecmult__context.html">secp256k1_ecmult_context</a> *<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *sigr, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a>* sigs, <a class="code" href="structsecp256k1__ge.html">secp256k1_ge</a> *pubkey, <span class="keyword">const</span> <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> *message, <span class="keywordtype">int</span> recid) {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> brx[32];</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> fx;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="structsecp256k1__ge.html">secp256k1_ge</a> x;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="structsecp256k1__gej.html">secp256k1_gej</a> xj;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> rn, u1, u2;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="structsecp256k1__gej.html">secp256k1_gej</a> qj;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">int</span> r;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">if</span> (<a class="code" href="scalar_8h.html#a3f0ac84fe49a1c1f51212582a2c149d4">secp256k1_scalar_is_zero</a>(sigr) || <a class="code" href="scalar_8h.html#a3f0ac84fe49a1c1f51212582a2c149d4">secp256k1_scalar_is_zero</a>(sigs)) {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</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>  <a class="code" href="scalar_8h.html#a4fa08f8af5a23f505b44c9ef1bec1831">secp256k1_scalar_get_b32</a>(brx, sigr);</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  r = <a class="code" href="field_8h.html#a5c86a65052e3b135919c00fe2233a43d">secp256k1_fe_set_b32</a>(&fx, brx);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  (void)r;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(r); <span class="comment">/* brx comes from a scalar, so is less than the order; certainly less than p */</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">if</span> (recid & 2) {</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">if</span> (<a class="code" href="field_8h.html#af372f2088796ef5338bb43dbb6dd5277">secp256k1_fe_cmp_var</a>(&fx, &<a class="code" href="ecdsa__impl_8h.html#a2f1a533c601e3dfa234d2f860670d137">secp256k1_ecdsa_const_p_minus_order</a>) >= 0) {</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="field_8h.html#a7512f80b60598e4af89c004890880fc7">secp256k1_fe_add</a>(&fx, &<a class="code" href="ecdsa__impl_8h.html#a46b45ada7a9487fc9ecda46927094f74">secp256k1_ecdsa_const_order_as_fe</a>);</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  }</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">if</span> (!<a class="code" href="group_8h.html#a3c3d9154b093bb4ed48ba55e4c28a0b5">secp256k1_ge_set_xo_var</a>(&x, &fx, recid & 1)) {</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="group_8h.html#ad5f813e26afb239f03e83f0e61e05498">secp256k1_gej_set_ge</a>(&xj, &x);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="scalar_8h.html#a58e84d0cabe81139df5c71759f833855">secp256k1_scalar_inverse_var</a>(&rn, sigr);</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="scalar_8h.html#a89db15f705c8eafcd10c08181523acd0">secp256k1_scalar_mul</a>(&u1, &rn, message);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="code" href="scalar_8h.html#aa3f1c1d4536adf835ee256878c222968">secp256k1_scalar_negate</a>(&u1, &u1);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="scalar_8h.html#a89db15f705c8eafcd10c08181523acd0">secp256k1_scalar_mul</a>(&u2, &rn, sigs);</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="ecmult_8h.html#aacf8b6ba48671daf24d549adb176366c">secp256k1_ecmult</a>(<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, &qj, &xj, &u2, &u1);</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="group__impl_8h.html#aea803cf52c0f33c2cb3bfb82d5790d71">secp256k1_ge_set_gej_var</a>(pubkey, &qj);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> !<a class="code" href="group_8h.html#a33786d5853579c92d46fac51f6a40093">secp256k1_gej_is_infinity</a>(&qj);</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> }</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="recovery_2main__impl_8h.html#ae06d019b6eaa34e248a502ba9c6d04cb"> 123</a></span> <span class="keywordtype">int</span> <a class="code" href="recovery_2main__impl_8h.html#ae06d019b6eaa34e248a502ba9c6d04cb">secp256k1_ecdsa_sign_recoverable</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__context__struct.html">secp256k1_context</a>* <a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, <a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html">secp256k1_ecdsa_recoverable_signature</a> *signature, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *msg32, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *seckey, <a class="code" href="secp256k1_8h.html#a539882fd91bff672712fa19a4cfaeb98">secp256k1_nonce_function</a> noncefp, <span class="keyword">const</span> <span class="keywordtype">void</span>* noncedata) {</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> r, s;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> sec, non, <a class="code" href="namespacezmq__sub.html#ab82b53c595929ff5ab2d30ec91fd539a">msg</a>;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">int</span> recid;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">int</span> ret = 0;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">int</span> overflow = 0;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a> != NULL);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(<a class="code" href="ecmult__gen_8h.html#a9a40662d6ed2cbab43dbddc25f570f97">secp256k1_ecmult_gen_context_is_built</a>(&<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>-><a class="code" href="structsecp256k1__context__struct.html#aacc2071a68f9c5a6c05eb783f523b9eb">ecmult_gen_ctx</a>));</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(msg32 != NULL);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(signature != NULL);</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(seckey != NULL);</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">if</span> (noncefp == NULL) {</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  noncefp = <a class="code" href="secp256k1_8h.html#a22f44df7786a1be5ad93aadfed75b932">secp256k1_nonce_function_default</a>;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  }</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <a class="code" href="scalar_8h.html#a25cc2d45ae1d1765d07c3313cdf46fa0">secp256k1_scalar_set_b32</a>(&sec, seckey, &overflow);</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">/* Fail if the secret key is invalid. */</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">if</span> (!overflow && !<a class="code" href="scalar_8h.html#a3f0ac84fe49a1c1f51212582a2c149d4">secp256k1_scalar_is_zero</a>(&sec)) {</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a> = 0;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="scalar_8h.html#a25cc2d45ae1d1765d07c3313cdf46fa0">secp256k1_scalar_set_b32</a>(&<a class="code" href="namespacezmq__sub.html#ab82b53c595929ff5ab2d30ec91fd539a">msg</a>, msg32, NULL);</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">while</span> (1) {</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> nonce32[32];</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  ret = noncefp(nonce32, msg32, seckey, NULL, (<span class="keywordtype">void</span>*)noncedata, <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>);</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span> (!ret) {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  }</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="scalar_8h.html#a25cc2d45ae1d1765d07c3313cdf46fa0">secp256k1_scalar_set_b32</a>(&non, nonce32, &overflow);</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  memset(nonce32, 0, 32);</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">if</span> (!<a class="code" href="scalar_8h.html#a3f0ac84fe49a1c1f51212582a2c149d4">secp256k1_scalar_is_zero</a>(&non) && !overflow) {</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">if</span> (<a class="code" href="ecdsa_8h.html#a5bf6905e00ae8571465a52e3165c6e6e">secp256k1_ecdsa_sig_sign</a>(&<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>-><a class="code" href="structsecp256k1__context__struct.html#aacc2071a68f9c5a6c05eb783f523b9eb">ecmult_gen_ctx</a>, &r, &s, &sec, &<a class="code" href="namespacezmq__sub.html#ab82b53c595929ff5ab2d30ec91fd539a">msg</a>, &non, &recid)) {</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>++;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <a class="code" href="scalar_8h.html#ad8fb9bc2a828903963bf37806d8edd11">secp256k1_scalar_clear</a>(&<a class="code" href="namespacezmq__sub.html#ab82b53c595929ff5ab2d30ec91fd539a">msg</a>);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <a class="code" href="scalar_8h.html#ad8fb9bc2a828903963bf37806d8edd11">secp256k1_scalar_clear</a>(&non);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <a class="code" href="scalar_8h.html#ad8fb9bc2a828903963bf37806d8edd11">secp256k1_scalar_clear</a>(&sec);</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (ret) {</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <a class="code" href="recovery_2main__impl_8h.html#a58a8a03b17aeb5cb4daf2940a58663b9">secp256k1_ecdsa_recoverable_signature_save</a>(signature, &r, &s, recid);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  memset(signature, 0, <span class="keyword">sizeof</span>(*signature));</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  }</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> }</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="recovery_2main__impl_8h.html#a75f3e32e9a25eac9e8f9d3a5a8b0dc94"> 170</a></span> <span class="keywordtype">int</span> <a class="code" href="recovery_2main__impl_8h.html#a75f3e32e9a25eac9e8f9d3a5a8b0dc94">secp256k1_ecdsa_recover</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__context__struct.html">secp256k1_context</a>* <a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, <a class="code" href="structsecp256k1__pubkey.html">secp256k1_pubkey</a> *pubkey, <span class="keyword">const</span> <a class="code" href="structsecp256k1__ecdsa__recoverable__signature.html">secp256k1_ecdsa_recoverable_signature</a> *signature, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *msg32) {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="structsecp256k1__ge.html">secp256k1_ge</a> q;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> r, s;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <a class="code" href="structsecp256k1__scalar.html">secp256k1_scalar</a> <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordtype">int</span> recid;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a> != NULL);</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(<a class="code" href="ecmult_8h.html#aa4f6f213989d3ec35850c40c8f1b313b">secp256k1_ecmult_context_is_built</a>(&<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>-><a class="code" href="structsecp256k1__context__struct.html#ab6a825dd98cab724df0f0060cf515eab">ecmult_ctx</a>));</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(msg32 != NULL);</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(signature != NULL);</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(pubkey != NULL);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <a class="code" href="recovery_2main__impl_8h.html#aa3ef0903a865dc9a6e42dfe61f75a9e5">secp256k1_ecdsa_recoverable_signature_load</a>(<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>, &r, &s, &recid, signature);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <a class="code" href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a>(recid >= 0 && recid < 4);</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <a class="code" href="scalar_8h.html#a25cc2d45ae1d1765d07c3313cdf46fa0">secp256k1_scalar_set_b32</a>(&<a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>, msg32, NULL);</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">if</span> (<a class="code" href="recovery_2main__impl_8h.html#a1a831ed991717749ed9d200bb9d3f03b">secp256k1_ecdsa_sig_recover</a>(&<a class="code" href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a>-><a class="code" href="structsecp256k1__context__struct.html#ab6a825dd98cab724df0f0060cf515eab">ecmult_ctx</a>, &r, &s, &q, &<a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>, recid)) {</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="secp256k1_8c.html#aa061c9c5c861017bef990e5c4653e0f4">secp256k1_pubkey_save</a>(pubkey, &q);</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  memset(pubkey, 0, <span class="keyword">sizeof</span>(*pubkey));</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  }</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="scalar_8h_html_a89db15f705c8eafcd10c08181523acd0"><div class="ttname"><a href="scalar_8h.html#a89db15f705c8eafcd10c08181523acd0">secp256k1_scalar_mul</a></div><div class="ttdeci">static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b)</div></div>
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<div class="ttc" id="ecmult_8h_html_aa4f6f213989d3ec35850c40c8f1b313b"><div class="ttname"><a href="ecmult_8h.html#aa4f6f213989d3ec35850c40c8f1b313b">secp256k1_ecmult_context_is_built</a></div><div class="ttdeci">static int secp256k1_ecmult_context_is_built(const secp256k1_ecmult_context *ctx)</div></div>
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<div class="ttc" id="secp256k1_2src_2util_8h_html_aca8ac5ae73fd966db106de59160a178b"><div class="ttname"><a href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a></div><div class="ttdeci">#define VERIFY_CHECK(cond)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_2src_2util_8h_source.html#l00064">util.h:64</a></div></div>
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<div class="ttc" id="group_8h_html_a33786d5853579c92d46fac51f6a40093"><div class="ttname"><a href="group_8h.html#a33786d5853579c92d46fac51f6a40093">secp256k1_gej_is_infinity</a></div><div class="ttdeci">static int secp256k1_gej_is_infinity(const secp256k1_gej *a)</div></div>
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<div class="ttc" id="structsecp256k1__fe_html"><div class="ttname"><a href="structsecp256k1__fe.html">secp256k1_fe</a></div><div class="ttdef"><b>Definition:</b> <a href="field__10x26_8h_source.html#l00012">field_10x26.h:12</a></div></div>
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<div class="ttc" id="secp256k1_8h_html_a22f44df7786a1be5ad93aadfed75b932"><div class="ttname"><a href="secp256k1_8h.html#a22f44df7786a1be5ad93aadfed75b932">secp256k1_nonce_function_default</a></div><div class="ttdeci">SECP256K1_API const secp256k1_nonce_function secp256k1_nonce_function_default</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8c_source.html#l00347">secp256k1.c:347</a></div></div>
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<div class="ttc" id="ecdsa_8h_html_a5bf6905e00ae8571465a52e3165c6e6e"><div class="ttname"><a href="ecdsa_8h.html#a5bf6905e00ae8571465a52e3165c6e6e">secp256k1_ecdsa_sig_sign</a></div><div class="ttdeci">static int secp256k1_ecdsa_sig_sign(const secp256k1_ecmult_gen_context *ctx, secp256k1_scalar *r, secp256k1_scalar *s, const secp256k1_scalar *seckey, const secp256k1_scalar *message, const secp256k1_scalar *nonce, int *recid)</div></div>
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<div class="ttc" id="recovery_2main__impl_8h_html_aa3ef0903a865dc9a6e42dfe61f75a9e5"><div class="ttname"><a href="recovery_2main__impl_8h.html#aa3ef0903a865dc9a6e42dfe61f75a9e5">secp256k1_ecdsa_recoverable_signature_load</a></div><div class="ttdeci">static void secp256k1_ecdsa_recoverable_signature_load(const secp256k1_context *ctx, secp256k1_scalar *r, secp256k1_scalar *s, int *recid, const secp256k1_ecdsa_recoverable_signature *sig)</div><div class="ttdef"><b>Definition:</b> <a href="recovery_2main__impl_8h_source.html#l00012">main_impl.h:12</a></div></div>
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<div class="ttc" id="group__impl_8h_html_aea803cf52c0f33c2cb3bfb82d5790d71"><div class="ttname"><a href="group__impl_8h.html#aea803cf52c0f33c2cb3bfb82d5790d71">secp256k1_ge_set_gej_var</a></div><div class="ttdeci">static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a)</div><div class="ttdef"><b>Definition:</b> <a href="group__impl_8h_source.html#l00065">group_impl.h:65</a></div></div>
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<div class="ttc" id="recovery_2main__impl_8h_html_a16ddfc800140d761bc783e571c34548c"><div class="ttname"><a href="recovery_2main__impl_8h.html#a16ddfc800140d761bc783e571c34548c">secp256k1_ecdsa_recoverable_signature_convert</a></div><div class="ttdeci">int secp256k1_ecdsa_recoverable_signature_convert(const secp256k1_context *ctx, secp256k1_ecdsa_signature *sig, const secp256k1_ecdsa_recoverable_signature *sigin)</div><div class="ttdef"><b>Definition:</b> <a href="recovery_2main__impl_8h_source.html#l00074">main_impl.h:74</a></div></div>
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<div class="ttc" id="structsecp256k1__ecdsa__recoverable__signature_html"><div class="ttname"><a href="structsecp256k1__ecdsa__recoverable__signature.html">secp256k1_ecdsa_recoverable_signature</a></div><div class="ttdef"><b>Definition:</b> <a href="secp256k1__recovery_8h_source.html#l00024">secp256k1_recovery.h:24</a></div></div>
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<div class="ttc" id="recovery_2main__impl_8h_html_ac122392fa6ff6264a7a110875af164b0"><div class="ttname"><a href="recovery_2main__impl_8h.html#ac122392fa6ff6264a7a110875af164b0">secp256k1_ecdsa_recoverable_signature_serialize_compact</a></div><div class="ttdeci">int secp256k1_ecdsa_recoverable_signature_serialize_compact(const secp256k1_context *ctx, unsigned char *output64, int *recid, const secp256k1_ecdsa_recoverable_signature *sig)</div><div class="ttdef"><b>Definition:</b> <a href="recovery_2main__impl_8h_source.html#l00060">main_impl.h:60</a></div></div>
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<div class="ttc" id="scalar_8h_html_aa3f1c1d4536adf835ee256878c222968"><div class="ttname"><a href="scalar_8h.html#aa3f1c1d4536adf835ee256878c222968">secp256k1_scalar_negate</a></div><div class="ttdeci">static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *a)</div></div>
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<div class="ttc" id="scalar_8h_html_a3f0ac84fe49a1c1f51212582a2c149d4"><div class="ttname"><a href="scalar_8h.html#a3f0ac84fe49a1c1f51212582a2c149d4">secp256k1_scalar_is_zero</a></div><div class="ttdeci">static int secp256k1_scalar_is_zero(const secp256k1_scalar *a)</div></div>
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<div class="ttc" id="secp256k1_8c_html_aa061c9c5c861017bef990e5c4653e0f4"><div class="ttname"><a href="secp256k1_8c.html#aa061c9c5c861017bef990e5c4653e0f4">secp256k1_pubkey_save</a></div><div class="ttdeci">static void secp256k1_pubkey_save(secp256k1_pubkey *pubkey, secp256k1_ge *ge)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8c_source.html#l00138">secp256k1.c:138</a></div></div>
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<div class="ttc" id="ecmult_8h_html_aacf8b6ba48671daf24d549adb176366c"><div class="ttname"><a href="ecmult_8h.html#aacf8b6ba48671daf24d549adb176366c">secp256k1_ecmult</a></div><div class="ttdeci">static void secp256k1_ecmult(const secp256k1_ecmult_context *ctx, secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_scalar *na, const secp256k1_scalar *ng)</div></div>
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<div class="ttc" id="scalar_8h_html_a25cc2d45ae1d1765d07c3313cdf46fa0"><div class="ttname"><a href="scalar_8h.html#a25cc2d45ae1d1765d07c3313cdf46fa0">secp256k1_scalar_set_b32</a></div><div class="ttdeci">static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *bin, int *overflow)</div></div>
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<div class="ttc" id="structsecp256k1__gej_html"><div class="ttname"><a href="structsecp256k1__gej.html">secp256k1_gej</a></div><div class="ttdef"><b>Definition:</b> <a href="group_8h_source.html#l00024">group.h:24</a></div></div>
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<div class="ttc" id="structsecp256k1__context__struct_html"><div class="ttname"><a href="structsecp256k1__context__struct.html">secp256k1_context_struct</a></div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8c_source.html#l00053">secp256k1.c:53</a></div></div>
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<div class="ttc" id="ecdsa__impl_8h_html_a46b45ada7a9487fc9ecda46927094f74"><div class="ttname"><a href="ecdsa__impl_8h.html#a46b45ada7a9487fc9ecda46927094f74">secp256k1_ecdsa_const_order_as_fe</a></div><div class="ttdeci">static const secp256k1_fe secp256k1_ecdsa_const_order_as_fe</div><div class="ttdef"><b>Definition:</b> <a href="ecdsa__impl_8h_source.html#l00031">ecdsa_impl.h:31</a></div></div>
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<div class="ttc" id="secp256k1_8c_html_a94e522f94c4819bebf8e854952eb6a8f"><div class="ttname"><a href="secp256k1_8c.html#a94e522f94c4819bebf8e854952eb6a8f">secp256k1_ecdsa_signature_save</a></div><div class="ttdeci">static void secp256k1_ecdsa_signature_save(secp256k1_ecdsa_signature *sig, const secp256k1_scalar *r, const secp256k1_scalar *s)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8c_source.html#l00206">secp256k1.c:206</a></div></div>
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<div class="ttc" id="recovery_2main__impl_8h_html_a37101568f72e98d7b29de6c6a825a289"><div class="ttname"><a href="recovery_2main__impl_8h.html#a37101568f72e98d7b29de6c6a825a289">secp256k1_ecdsa_recoverable_signature_parse_compact</a></div><div class="ttdeci">int secp256k1_ecdsa_recoverable_signature_parse_compact(const secp256k1_context *ctx, secp256k1_ecdsa_recoverable_signature *sig, const unsigned char *input64, int recid)</div><div class="ttdef"><b>Definition:</b> <a href="recovery_2main__impl_8h_source.html#l00038">main_impl.h:38</a></div></div>
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<div class="ttc" id="field_8h_html_a7512f80b60598e4af89c004890880fc7"><div class="ttname"><a href="field_8h.html#a7512f80b60598e4af89c004890880fc7">secp256k1_fe_add</a></div><div class="ttdeci">static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a)</div></div>
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<div class="ttc" id="namespacelinearize-data_html_af01cfbce273b138c21938509627f15aa"><div class="ttname"><a href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">linearize-data.m</a></div><div class="ttdeci">m</div><div class="ttdef"><b>Definition:</b> <a href="linearize-data_8py_source.html#l00260">linearize-data.py:260</a></div></div>
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<div class="ttc" id="structsecp256k1__context__struct_html_aacc2071a68f9c5a6c05eb783f523b9eb"><div class="ttname"><a href="structsecp256k1__context__struct.html#aacc2071a68f9c5a6c05eb783f523b9eb">secp256k1_context_struct::ecmult_gen_ctx</a></div><div class="ttdeci">secp256k1_ecmult_gen_context ecmult_gen_ctx</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8c_source.html#l00055">secp256k1.c:55</a></div></div>
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<div class="ttc" id="secp256k1_8c_html_a6e1f88c6ce07376501097b42a2b40727"><div class="ttname"><a href="secp256k1_8c.html#a6e1f88c6ce07376501097b42a2b40727">ARG_CHECK</a></div><div class="ttdeci">#define ARG_CHECK(cond)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8c_source.html#l00023">secp256k1.c:23</a></div></div>
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<div class="ttc" id="tests_8c_html_a06a3e29ada83211a695a49e8f7405842"><div class="ttname"><a href="tests_8c.html#a06a3e29ada83211a695a49e8f7405842">ctx</a></div><div class="ttdeci">static secp256k1_context * ctx</div><div class="ttdef"><b>Definition:</b> <a href="tests_8c_source.html#l00042">tests.c:42</a></div></div>
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<div class="ttc" id="recovery_2main__impl_8h_html_a75f3e32e9a25eac9e8f9d3a5a8b0dc94"><div class="ttname"><a href="recovery_2main__impl_8h.html#a75f3e32e9a25eac9e8f9d3a5a8b0dc94">secp256k1_ecdsa_recover</a></div><div class="ttdeci">int secp256k1_ecdsa_recover(const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const secp256k1_ecdsa_recoverable_signature *signature, const unsigned char *msg32)</div><div class="ttdef"><b>Definition:</b> <a href="recovery_2main__impl_8h_source.html#l00170">main_impl.h:170</a></div></div>
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<div class="ttc" id="structsecp256k1__context__struct_html_ab6a825dd98cab724df0f0060cf515eab"><div class="ttname"><a href="structsecp256k1__context__struct.html#ab6a825dd98cab724df0f0060cf515eab">secp256k1_context_struct::ecmult_ctx</a></div><div class="ttdeci">secp256k1_ecmult_context ecmult_ctx</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8c_source.html#l00054">secp256k1.c:54</a></div></div>
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<div class="ttc" id="scalar_8h_html_ad8fb9bc2a828903963bf37806d8edd11"><div class="ttname"><a href="scalar_8h.html#ad8fb9bc2a828903963bf37806d8edd11">secp256k1_scalar_clear</a></div><div class="ttdeci">static void secp256k1_scalar_clear(secp256k1_scalar *r)</div></div>
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<div class="ttc" id="structsecp256k1__ge_html"><div class="ttname"><a href="structsecp256k1__ge.html">secp256k1_ge</a></div><div class="ttdef"><b>Definition:</b> <a href="group_8h_source.html#l00014">group.h:14</a></div></div>
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<div class="ttc" id="structsecp256k1__ecdsa__signature_html"><div class="ttname"><a href="structsecp256k1__ecdsa__signature.html">secp256k1_ecdsa_signature</a></div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8h_source.html#l00072">secp256k1.h:72</a></div></div>
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<div class="ttc" id="structsecp256k1__scalar_html"><div class="ttname"><a href="structsecp256k1__scalar.html">secp256k1_scalar</a></div><div class="ttdef"><b>Definition:</b> <a href="scalar__4x64_8h_source.html#l00013">scalar_4x64.h:13</a></div></div>
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<div class="ttc" id="namespacezmq__sub_html_ab82b53c595929ff5ab2d30ec91fd539a"><div class="ttname"><a href="namespacezmq__sub.html#ab82b53c595929ff5ab2d30ec91fd539a">zmq_sub.msg</a></div><div class="ttdeci">msg</div><div class="ttdef"><b>Definition:</b> <a href="zmq__sub_8py_source.html#l00022">zmq_sub.py:22</a></div></div>
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<div class="ttc" id="scalar_8h_html_a4fa08f8af5a23f505b44c9ef1bec1831"><div class="ttname"><a href="scalar_8h.html#a4fa08f8af5a23f505b44c9ef1bec1831">secp256k1_scalar_get_b32</a></div><div class="ttdeci">static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar *a)</div></div>
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<div class="ttc" id="group_8h_html_a3c3d9154b093bb4ed48ba55e4c28a0b5"><div class="ttname"><a href="group_8h.html#a3c3d9154b093bb4ed48ba55e4c28a0b5">secp256k1_ge_set_xo_var</a></div><div class="ttdeci">static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int odd)</div></div>
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<div class="ttc" id="recovery_2main__impl_8h_html_ae06d019b6eaa34e248a502ba9c6d04cb"><div class="ttname"><a href="recovery_2main__impl_8h.html#ae06d019b6eaa34e248a502ba9c6d04cb">secp256k1_ecdsa_sign_recoverable</a></div><div class="ttdeci">int secp256k1_ecdsa_sign_recoverable(const secp256k1_context *ctx, secp256k1_ecdsa_recoverable_signature *signature, const unsigned char *msg32, const unsigned char *seckey, secp256k1_nonce_function noncefp, const void *noncedata)</div><div class="ttdef"><b>Definition:</b> <a href="recovery_2main__impl_8h_source.html#l00123">main_impl.h:123</a></div></div>
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<div class="ttc" id="field_8h_html_a5c86a65052e3b135919c00fe2233a43d"><div class="ttname"><a href="field_8h.html#a5c86a65052e3b135919c00fe2233a43d">secp256k1_fe_set_b32</a></div><div class="ttdeci">static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a)</div></div>
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<div class="ttc" id="field_8h_html_af372f2088796ef5338bb43dbb6dd5277"><div class="ttname"><a href="field_8h.html#af372f2088796ef5338bb43dbb6dd5277">secp256k1_fe_cmp_var</a></div><div class="ttdeci">static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b)</div></div>
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<div class="ttc" id="secp256k1_8h_html_a539882fd91bff672712fa19a4cfaeb98"><div class="ttname"><a href="secp256k1_8h.html#a539882fd91bff672712fa19a4cfaeb98">secp256k1_nonce_function</a></div><div class="ttdeci">int(* secp256k1_nonce_function)(unsigned char *nonce32, const unsigned char *msg32, const unsigned char *key32, const unsigned char *algo16, void *data, unsigned int attempt)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8h_source.html#l00092">secp256k1.h:92</a></div></div>
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<div class="ttc" id="scalar_8h_html_a58e84d0cabe81139df5c71759f833855"><div class="ttname"><a href="scalar_8h.html#a58e84d0cabe81139df5c71759f833855">secp256k1_scalar_inverse_var</a></div><div class="ttdeci">static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_scalar *a)</div></div>
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<div class="ttc" id="structsecp256k1__ecdsa__recoverable__signature_html_a7157f0cd8b8fb97fceacfd9c0024a952"><div class="ttname"><a href="structsecp256k1__ecdsa__recoverable__signature.html#a7157f0cd8b8fb97fceacfd9c0024a952">secp256k1_ecdsa_recoverable_signature::data</a></div><div class="ttdeci">unsigned char data[65]</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1__recovery_8h_source.html#l00025">secp256k1_recovery.h:25</a></div></div>
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<div class="ttc" id="glibc__compat_8cpp_html_a0f46826ab0466591e136db24394923cf"><div class="ttname"><a href="glibc__compat_8cpp.html#a0f46826ab0466591e136db24394923cf">memcpy</a></div><div class="ttdeci">void * memcpy(void *a, const void *b, size_t c)</div><div class="ttdef"><b>Definition:</b> <a href="glibc__compat_8cpp_source.html#l00017">glibc_compat.cpp:17</a></div></div>
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<div class="ttc" id="tests_8c_html_ad43c3812e6d13e0518d9f8b8f463ffcf"><div class="ttname"><a href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a></div><div class="ttdeci">static int count</div><div class="ttdef"><b>Definition:</b> <a href="tests_8c_source.html#l00041">tests.c:41</a></div></div>
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<div class="ttc" id="secp256k1__recovery_8h_html"><div class="ttname"><a href="secp256k1__recovery_8h.html">secp256k1_recovery.h</a></div></div>
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<div class="ttc" id="structsecp256k1__ecmult__context_html"><div class="ttname"><a href="structsecp256k1__ecmult__context.html">secp256k1_ecmult_context</a></div><div class="ttdef"><b>Definition:</b> <a href="ecmult_8h_source.html#l00013">ecmult.h:13</a></div></div>
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<div class="ttc" id="group_8h_html_ad5f813e26afb239f03e83f0e61e05498"><div class="ttname"><a href="group_8h.html#ad5f813e26afb239f03e83f0e61e05498">secp256k1_gej_set_ge</a></div><div class="ttdeci">static void secp256k1_gej_set_ge(secp256k1_gej *r, const secp256k1_ge *a)</div></div>
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<div class="ttc" id="recovery_2main__impl_8h_html_a1a831ed991717749ed9d200bb9d3f03b"><div class="ttname"><a href="recovery_2main__impl_8h.html#a1a831ed991717749ed9d200bb9d3f03b">secp256k1_ecdsa_sig_recover</a></div><div class="ttdeci">static int secp256k1_ecdsa_sig_recover(const secp256k1_ecmult_context *ctx, const secp256k1_scalar *sigr, const secp256k1_scalar *sigs, secp256k1_ge *pubkey, const secp256k1_scalar *message, int recid)</div><div class="ttdef"><b>Definition:</b> <a href="recovery_2main__impl_8h_source.html#l00087">main_impl.h:87</a></div></div>
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<div class="ttc" id="ecmult__gen_8h_html_a9a40662d6ed2cbab43dbddc25f570f97"><div class="ttname"><a href="ecmult__gen_8h.html#a9a40662d6ed2cbab43dbddc25f570f97">secp256k1_ecmult_gen_context_is_built</a></div><div class="ttdeci">static int secp256k1_ecmult_gen_context_is_built(const secp256k1_ecmult_gen_context *ctx)</div></div>
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<div class="ttc" id="recovery_2main__impl_8h_html_a58a8a03b17aeb5cb4daf2940a58663b9"><div class="ttname"><a href="recovery_2main__impl_8h.html#a58a8a03b17aeb5cb4daf2940a58663b9">secp256k1_ecdsa_recoverable_signature_save</a></div><div class="ttdeci">static void secp256k1_ecdsa_recoverable_signature_save(secp256k1_ecdsa_recoverable_signature *sig, const secp256k1_scalar *r, const secp256k1_scalar *s, int recid)</div><div class="ttdef"><b>Definition:</b> <a href="recovery_2main__impl_8h_source.html#l00027">main_impl.h:27</a></div></div>
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<div class="ttc" id="ecdsa__impl_8h_html_a2f1a533c601e3dfa234d2f860670d137"><div class="ttname"><a href="ecdsa__impl_8h.html#a2f1a533c601e3dfa234d2f860670d137">secp256k1_ecdsa_const_p_minus_order</a></div><div class="ttdeci">static const secp256k1_fe secp256k1_ecdsa_const_p_minus_order</div><div class="ttdef"><b>Definition:</b> <a href="ecdsa__impl_8h_source.html#l00045">ecdsa_impl.h:45</a></div></div>
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<div class="ttc" id="structsecp256k1__pubkey_html"><div class="ttname"><a href="structsecp256k1__pubkey.html">secp256k1_pubkey</a></div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8h_source.html#l00056">secp256k1.h:56</a></div></div>
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