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<li class="navelem"><a class="el" href="dir_6a9bbd12bf4e19a18c45e270f8fae3fd.html">include</a></li><li class="navelem"><a class="el" href="dir_04272d44da4745cf8b8bfc767d6c6523.html">polarssl</a></li> </ul>
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<a href="ecdsa_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> </div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#ifndef POLARSSL_ECDSA_H</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"></span><span class="preprocessor">#define POLARSSL_ECDSA_H</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "<a class="code" href="ecp_8h.html">ecp.h</a>"</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#if defined(POLARSSL_ECDSA_DETERMINISTIC)</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="md_8h.html">md.h</a>"</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="structecdsa__context.html"> 41</a></span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> {</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="structecdsa__context.html#a651d70dd9732c8dd3ea043bbc57473a7"> 43</a></span>  <a class="code" href="structecp__group.html">ecp_group</a> <a class="code" href="structecdsa__context.html#a651d70dd9732c8dd3ea043bbc57473a7">grp</a>; </div>
<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="structecdsa__context.html#a549d4c4198722471d1ffa8178d46d742"> 44</a></span>  <a class="code" href="structmpi.html">mpi</a> <a class="code" href="structecdsa__context.html#a549d4c4198722471d1ffa8178d46d742">d</a>; </div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="structecdsa__context.html#a08c8c8eec4c95e71ad0b2b122f3ae1e1"> 45</a></span>  <a class="code" href="structecp__point.html">ecp_point</a> <a class="code" href="structecdsa__context.html#a08c8c8eec4c95e71ad0b2b122f3ae1e1">Q</a>; </div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="structecdsa__context.html#a9fe28b71d896452366251d3e4755f9d1"> 46</a></span>  <a class="code" href="structmpi.html">mpi</a> <a class="code" href="structecdsa__context.html#a9fe28b71d896452366251d3e4755f9d1">r</a>; </div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="structecdsa__context.html#a3c84b57b2b3ba1db63fb3a86c447a39d"> 47</a></span>  <a class="code" href="structmpi.html">mpi</a> <a class="code" href="structecdsa__context.html#a3c84b57b2b3ba1db63fb3a86c447a39d">s</a>; </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> }</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <a class="code" href="structecdsa__context.html">ecdsa_context</a>;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a5a5858bde5c49005fefbe74883fc9a9d">ecdsa_sign</a>( <a class="code" href="structecp__group.html">ecp_group</a> *grp, <a class="code" href="structmpi.html">mpi</a> *r, <a class="code" href="structmpi.html">mpi</a> *s,</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">const</span> <a class="code" href="structmpi.html">mpi</a> *d, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> blen,</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">int</span> (*f_rng)(<span class="keywordtype">void</span> *, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *, <span class="keywordtype">size_t</span>), <span class="keywordtype">void</span> *p_rng );</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor">#if defined(POLARSSL_ECDSA_DETERMINISTIC)</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#af633a283f02fb3381354dc857a5cef43">ecdsa_sign_det</a>( <a class="code" href="structecp__group.html">ecp_group</a> *grp, <a class="code" href="structmpi.html">mpi</a> *r, <a class="code" href="structmpi.html">mpi</a> *s,</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">const</span> <a class="code" href="structmpi.html">mpi</a> *d, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> blen,</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="md_8h.html#af1fbbb67afa0daee4090cde8864e0b68">md_type_t</a> md_alg );</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_ECDSA_DETERMINISTIC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a9f54b1d3ff1cef8dec1051016eace9e6">ecdsa_verify</a>( <a class="code" href="structecp__group.html">ecp_group</a> *grp,</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> blen,</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">const</span> <a class="code" href="structecp__point.html">ecp_point</a> *Q, <span class="keyword">const</span> <a class="code" href="structmpi.html">mpi</a> *r, <span class="keyword">const</span> <a class="code" href="structmpi.html">mpi</a> *s);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a8cadaa8ea3f8251adc2249c3108b26cc">ecdsa_write_signature</a>( <a class="code" href="structecdsa__context.html">ecdsa_context</a> *ctx,</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *hash, <span class="keywordtype">size_t</span> hlen,</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *sig, <span class="keywordtype">size_t</span> *slen,</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordtype">int</span> (*f_rng)(<span class="keywordtype">void</span> *, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *, <span class="keywordtype">size_t</span>),</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordtype">void</span> *p_rng );</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="preprocessor">#if defined(POLARSSL_ECDSA_DETERMINISTIC)</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#ad86d178c1aa2135f398e5a92e860dae4">ecdsa_write_signature_det</a>( <a class="code" href="structecdsa__context.html">ecdsa_context</a> *ctx,</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *hash, <span class="keywordtype">size_t</span> hlen,</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *sig, <span class="keywordtype">size_t</span> *slen,</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <a class="code" href="md_8h.html#af1fbbb67afa0daee4090cde8864e0b68">md_type_t</a> md_alg );</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_ECDSA_DETERMINISTIC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a5f77f5b93fce3ef628d7f8de5bf92de8">ecdsa_read_signature</a>( <a class="code" href="structecdsa__context.html">ecdsa_context</a> *ctx,</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *hash, <span class="keywordtype">size_t</span> hlen,</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *sig, <span class="keywordtype">size_t</span> slen );</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#ac394e13bb4ced90794817d9a127bc776">ecdsa_genkey</a>( <a class="code" href="structecdsa__context.html">ecdsa_context</a> *ctx, <a class="code" href="ecp_8h.html#a751fce96f17826537221248b4ed5cbd2">ecp_group_id</a> gid,</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordtype">int</span> (*f_rng)(<span class="keywordtype">void</span> *, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *, <span class="keywordtype">size_t</span>), <span class="keywordtype">void</span> *p_rng );</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a186f01f0a428f017b338c43df19c3b0b">ecdsa_from_keypair</a>( <a class="code" href="structecdsa__context.html">ecdsa_context</a> *ctx, <span class="keyword">const</span> <a class="code" href="structecp__keypair.html">ecp_keypair</a> *key );</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="keywordtype">void</span> <a class="code" href="ecdsa_8h.html#a70bf12fe3c9062d5ee306378d94f8d67">ecdsa_init</a>( <a class="code" href="structecdsa__context.html">ecdsa_context</a> *ctx );</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="keywordtype">void</span> <a class="code" href="ecdsa_8h.html#ab49abcf12ba983d101f500fd85f468da">ecdsa_free</a>( <a class="code" href="structecdsa__context.html">ecdsa_context</a> *ctx );</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#af449415b02ec5ba96d800cbcd9d5f042">ecdsa_self_test</a>( <span class="keywordtype">int</span> verbose );</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="preprocessor">#endif </span><span class="comment">/* ecdsa.h */</span><span class="preprocessor"></span></div>
<div class="ttc" id="structecdsa__context_html_a549d4c4198722471d1ffa8178d46d742"><div class="ttname"><a href="structecdsa__context.html#a549d4c4198722471d1ffa8178d46d742">ecdsa_context::d</a></div><div class="ttdeci">mpi d</div><div class="ttdef"><b>Definition:</b> <a href="ecdsa_8h_source.html#l00044">ecdsa.h:44</a></div></div>
<div class="ttc" id="ecdsa_8h_html_a186f01f0a428f017b338c43df19c3b0b"><div class="ttname"><a href="ecdsa_8h.html#a186f01f0a428f017b338c43df19c3b0b">ecdsa_from_keypair</a></div><div class="ttdeci">int ecdsa_from_keypair(ecdsa_context *ctx, const ecp_keypair *key)</div><div class="ttdoc">Set an ECDSA context from an EC key pair. </div></div>
<div class="ttc" id="ecdsa_8h_html_a9f54b1d3ff1cef8dec1051016eace9e6"><div class="ttname"><a href="ecdsa_8h.html#a9f54b1d3ff1cef8dec1051016eace9e6">ecdsa_verify</a></div><div class="ttdeci">int ecdsa_verify(ecp_group *grp, const unsigned char *buf, size_t blen, const ecp_point *Q, const mpi *r, const mpi *s)</div><div class="ttdoc">Verify ECDSA signature of a previously hashed message. </div></div>
<div class="ttc" id="ecp_8h_html"><div class="ttname"><a href="ecp_8h.html">ecp.h</a></div><div class="ttdoc">Elliptic curves over GF(p) </div></div>
<div class="ttc" id="ecdsa_8h_html_a8cadaa8ea3f8251adc2249c3108b26cc"><div class="ttname"><a href="ecdsa_8h.html#a8cadaa8ea3f8251adc2249c3108b26cc">ecdsa_write_signature</a></div><div class="ttdeci">int ecdsa_write_signature(ecdsa_context *ctx, const unsigned char *hash, size_t hlen, unsigned char *sig, size_t *slen, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)</div><div class="ttdoc">Compute ECDSA signature and write it to buffer, serialized as defined in RFC 4492 page 20...</div></div>
<div class="ttc" id="ecdsa_8h_html_a5a5858bde5c49005fefbe74883fc9a9d"><div class="ttname"><a href="ecdsa_8h.html#a5a5858bde5c49005fefbe74883fc9a9d">ecdsa_sign</a></div><div class="ttdeci">int ecdsa_sign(ecp_group *grp, mpi *r, mpi *s, const mpi *d, const unsigned char *buf, size_t blen, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)</div><div class="ttdoc">Compute ECDSA signature of a previously hashed message. </div></div>
<div class="ttc" id="structecp__group_html"><div class="ttname"><a href="structecp__group.html">ecp_group</a></div><div class="ttdoc">ECP group structure. </div><div class="ttdef"><b>Definition:</b> <a href="ecp_8h_source.html#l00136">ecp.h:136</a></div></div>
<div class="ttc" id="ecdsa_8h_html_af449415b02ec5ba96d800cbcd9d5f042"><div class="ttname"><a href="ecdsa_8h.html#af449415b02ec5ba96d800cbcd9d5f042">ecdsa_self_test</a></div><div class="ttdeci">int ecdsa_self_test(int verbose)</div><div class="ttdoc">Checkup routine. </div></div>
<div class="ttc" id="structecdsa__context_html_a651d70dd9732c8dd3ea043bbc57473a7"><div class="ttname"><a href="structecdsa__context.html#a651d70dd9732c8dd3ea043bbc57473a7">ecdsa_context::grp</a></div><div class="ttdeci">ecp_group grp</div><div class="ttdef"><b>Definition:</b> <a href="ecdsa_8h_source.html#l00043">ecdsa.h:43</a></div></div>
<div class="ttc" id="structecp__keypair_html"><div class="ttname"><a href="structecp__keypair.html">ecp_keypair</a></div><div class="ttdoc">ECP key pair structure. </div><div class="ttdef"><b>Definition:</b> <a href="ecp_8h_source.html#l00163">ecp.h:163</a></div></div>
<div class="ttc" id="structmpi_html"><div class="ttname"><a href="structmpi.html">mpi</a></div><div class="ttdoc">MPI structure. </div><div class="ttdef"><b>Definition:</b> <a href="bignum_8h_source.html#l00182">bignum.h:182</a></div></div>
<div class="ttc" id="md_8h_html_af1fbbb67afa0daee4090cde8864e0b68"><div class="ttname"><a href="md_8h.html#af1fbbb67afa0daee4090cde8864e0b68">md_type_t</a></div><div class="ttdeci">md_type_t</div><div class="ttdef"><b>Definition:</b> <a href="md_8h_source.html#l00051">md.h:51</a></div></div>
<div class="ttc" id="structecdsa__context_html_a9fe28b71d896452366251d3e4755f9d1"><div class="ttname"><a href="structecdsa__context.html#a9fe28b71d896452366251d3e4755f9d1">ecdsa_context::r</a></div><div class="ttdeci">mpi r</div><div class="ttdef"><b>Definition:</b> <a href="ecdsa_8h_source.html#l00046">ecdsa.h:46</a></div></div>
<div class="ttc" id="structecp__point_html"><div class="ttname"><a href="structecp__point.html">ecp_point</a></div><div class="ttdoc">ECP point structure (jacobian coordinates) </div><div class="ttdef"><b>Definition:</b> <a href="ecp_8h_source.html#l00104">ecp.h:104</a></div></div>
<div class="ttc" id="structecdsa__context_html"><div class="ttname"><a href="structecdsa__context.html">ecdsa_context</a></div><div class="ttdoc">ECDSA context structure. </div><div class="ttdef"><b>Definition:</b> <a href="ecdsa_8h_source.html#l00041">ecdsa.h:41</a></div></div>
<div class="ttc" id="structecdsa__context_html_a3c84b57b2b3ba1db63fb3a86c447a39d"><div class="ttname"><a href="structecdsa__context.html#a3c84b57b2b3ba1db63fb3a86c447a39d">ecdsa_context::s</a></div><div class="ttdeci">mpi s</div><div class="ttdef"><b>Definition:</b> <a href="ecdsa_8h_source.html#l00047">ecdsa.h:47</a></div></div>
<div class="ttc" id="ecdsa_8h_html_a5f77f5b93fce3ef628d7f8de5bf92de8"><div class="ttname"><a href="ecdsa_8h.html#a5f77f5b93fce3ef628d7f8de5bf92de8">ecdsa_read_signature</a></div><div class="ttdeci">int ecdsa_read_signature(ecdsa_context *ctx, const unsigned char *hash, size_t hlen, const unsigned char *sig, size_t slen)</div><div class="ttdoc">Read and verify an ECDSA signature. </div></div>
<div class="ttc" id="structecdsa__context_html_a08c8c8eec4c95e71ad0b2b122f3ae1e1"><div class="ttname"><a href="structecdsa__context.html#a08c8c8eec4c95e71ad0b2b122f3ae1e1">ecdsa_context::Q</a></div><div class="ttdeci">ecp_point Q</div><div class="ttdef"><b>Definition:</b> <a href="ecdsa_8h_source.html#l00045">ecdsa.h:45</a></div></div>
<div class="ttc" id="ecdsa_8h_html_a70bf12fe3c9062d5ee306378d94f8d67"><div class="ttname"><a href="ecdsa_8h.html#a70bf12fe3c9062d5ee306378d94f8d67">ecdsa_init</a></div><div class="ttdeci">void ecdsa_init(ecdsa_context *ctx)</div><div class="ttdoc">Initialize context. </div></div>
<div class="ttc" id="md_8h_html"><div class="ttname"><a href="md_8h.html">md.h</a></div><div class="ttdoc">Generic message digest wrapper. </div></div>
<div class="ttc" id="ecp_8h_html_a751fce96f17826537221248b4ed5cbd2"><div class="ttname"><a href="ecp_8h.html#a751fce96f17826537221248b4ed5cbd2">ecp_group_id</a></div><div class="ttdeci">ecp_group_id</div><div class="ttdoc">Domain parameters (curve, subgroup and generator) identifiers. </div><div class="ttdef"><b>Definition:</b> <a href="ecp_8h_source.html#l00057">ecp.h:57</a></div></div>
<div class="ttc" id="ecdsa_8h_html_ac394e13bb4ced90794817d9a127bc776"><div class="ttname"><a href="ecdsa_8h.html#ac394e13bb4ced90794817d9a127bc776">ecdsa_genkey</a></div><div class="ttdeci">int ecdsa_genkey(ecdsa_context *ctx, ecp_group_id gid, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)</div><div class="ttdoc">Generate an ECDSA keypair on the given curve. </div></div>
<div class="ttc" id="ecdsa_8h_html_af633a283f02fb3381354dc857a5cef43"><div class="ttname"><a href="ecdsa_8h.html#af633a283f02fb3381354dc857a5cef43">ecdsa_sign_det</a></div><div class="ttdeci">int ecdsa_sign_det(ecp_group *grp, mpi *r, mpi *s, const mpi *d, const unsigned char *buf, size_t blen, md_type_t md_alg)</div><div class="ttdoc">Compute ECDSA signature of a previously hashed message (deterministic version) </div></div>
<div class="ttc" id="ecdsa_8h_html_ab49abcf12ba983d101f500fd85f468da"><div class="ttname"><a href="ecdsa_8h.html#ab49abcf12ba983d101f500fd85f468da">ecdsa_free</a></div><div class="ttdeci">void ecdsa_free(ecdsa_context *ctx)</div><div class="ttdoc">Free context. </div></div>
<div class="ttc" id="ecdsa_8h_html_ad86d178c1aa2135f398e5a92e860dae4"><div class="ttname"><a href="ecdsa_8h.html#ad86d178c1aa2135f398e5a92e860dae4">ecdsa_write_signature_det</a></div><div class="ttdeci">int ecdsa_write_signature_det(ecdsa_context *ctx, const unsigned char *hash, size_t hlen, unsigned char *sig, size_t *slen, md_type_t md_alg)</div><div class="ttdoc">Compute ECDSA signature and write it to buffer, serialized as defined in RFC 4492 page 20...</div></div>
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