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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="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef MBEDTLS_ECDSA_H</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#define MBEDTLS_ECDSA_H</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="ecp_8h.html">ecp.h</a>"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="md_8h.html">md.h</a>"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">/*</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * RFC 4492 page 20:</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> *</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * Ecdsa-Sig-Value ::= SEQUENCE {</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * r INTEGER,</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * s INTEGER</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * }</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> *</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * Size is at most</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * 1 (tag) + 1 (len) + 1 (initial 0) + ECP_MAX_BYTES for each of r and s,</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * twice that + 1 (tag) + 2 (len) for the sequence</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * (assuming ECP_MAX_BYTES is less than 126 for r and s,</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * and less than 124 (total len <= 255) for the sequence)</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> */</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#if MBEDTLS_ECP_MAX_BYTES > 124</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#error "MBEDTLS_ECP_MAX_BYTES bigger than expected, please fix MBEDTLS_ECDSA_MAX_LEN"</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="ecdsa_8h.html#aeb07d11aef4d847c5cc5cfba49547136"> 47</a></span> <span class="preprocessor">#define MBEDTLS_ECDSA_MAX_LEN ( 3 + 2 * ( 3 + MBEDTLS_ECP_MAX_BYTES ) )</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="ecdsa_8h.html#a86ad4c743272c83310c20585ec7a182f"> 52</a></span> <span class="keyword">typedef</span> <a class="code" href="structmbedtls__ecp__keypair.html">mbedtls_ecp_keypair</a> <a class="code" href="ecdsa_8h.html#a86ad4c743272c83310c20585ec7a182f">mbedtls_ecdsa_context</a>;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#af10f6fda2169862871d0ac07555c8641">mbedtls_ecdsa_sign</a>( <a class="code" href="structmbedtls__ecp__group.html">mbedtls_ecp_group</a> *grp, <a class="code" href="structmbedtls__mpi.html">mbedtls_mpi</a> *r, <a class="code" href="structmbedtls__mpi.html">mbedtls_mpi</a> *s,</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">const</span> <a class="code" href="structmbedtls__mpi.html">mbedtls_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="l00081"></a><span class="lineno"> 81</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="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#if defined(MBEDTLS_ECDSA_DETERMINISTIC)</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a381af8cc9ab0146a4cf1ba5226c81a8f">mbedtls_ecdsa_sign_det</a>( <a class="code" href="structmbedtls__ecp__group.html">mbedtls_ecp_group</a> *grp, <a class="code" href="structmbedtls__mpi.html">mbedtls_mpi</a> *r, <a class="code" href="structmbedtls__mpi.html">mbedtls_mpi</a> *s,</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keyword">const</span> <a class="code" href="structmbedtls__mpi.html">mbedtls_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="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="md_8h.html#a219313cb40503ec3e34a857ab98b2296">mbedtls_md_type_t</a> md_alg );</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#endif </span><span class="comment">/* MBEDTLS_ECDSA_DETERMINISTIC */</span><span class="preprocessor"></span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a2292032f359fda59a7fd14911cc56f38">mbedtls_ecdsa_verify</a>( <a class="code" href="structmbedtls__ecp__group.html">mbedtls_ecp_group</a> *grp,</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</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="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">const</span> <a class="code" href="structmbedtls__ecp__point.html">mbedtls_ecp_point</a> *Q, <span class="keyword">const</span> <a class="code" href="structmbedtls__mpi.html">mbedtls_mpi</a> *r, <span class="keyword">const</span> <a class="code" href="structmbedtls__mpi.html">mbedtls_mpi</a> *s);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a76da70289de1f746ad9cce1eadf7b135">mbedtls_ecdsa_write_signature</a>( <a class="code" href="structmbedtls__ecp__keypair.html">mbedtls_ecdsa_context</a> *ctx, <a class="code" href="md_8h.html#a219313cb40503ec3e34a857ab98b2296">mbedtls_md_type_t</a> md_alg,</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</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="l00161"></a><span class="lineno"> 161</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="l00162"></a><span class="lineno"> 162</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="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">void</span> *p_rng );</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="preprocessor">#if defined(MBEDTLS_ECDSA_DETERMINISTIC)</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor">#if ! defined(MBEDTLS_DEPRECATED_REMOVED)</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor">#if defined(MBEDTLS_DEPRECATED_WARNING)</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="preprocessor">#define MBEDTLS_DEPRECATED __attribute__((deprecated))</span></div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="ecdsa_8h.html#aa9f53b232ef244efb301233d111930dc"> 170</a></span> <span class="preprocessor">#define MBEDTLS_DEPRECATED</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a3827a7cf6502530e831e0bb1fcfdd5d8">mbedtls_ecdsa_write_signature_det</a>( <a class="code" href="structmbedtls__ecp__keypair.html">mbedtls_ecdsa_context</a> *ctx,</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</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="l00201"></a><span class="lineno"> 201</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="l00202"></a><span class="lineno"> 202</span>  <a class="code" href="md_8h.html#a219313cb40503ec3e34a857ab98b2296">mbedtls_md_type_t</a> md_alg ) <a class="code" href="ecdsa_8h.html#aa9f53b232ef244efb301233d111930dc">MBEDTLS_DEPRECATED</a>;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor">#undef MBEDTLS_DEPRECATED</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="preprocessor">#endif </span><span class="comment">/* MBEDTLS_DEPRECATED_REMOVED */</span><span class="preprocessor"></span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="preprocessor">#endif </span><span class="comment">/* MBEDTLS_ECDSA_DETERMINISTIC */</span><span class="preprocessor"></span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a8085ade3e127118aa615f65cb1d393d5">mbedtls_ecdsa_read_signature</a>( <a class="code" href="structmbedtls__ecp__keypair.html">mbedtls_ecdsa_context</a> *ctx,</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</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="l00228"></a><span class="lineno"> 228</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="l00229"></a><span class="lineno"> 229</span> </div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#ab909bd06650e761e9fd176a86bd1ce17">mbedtls_ecdsa_genkey</a>( <a class="code" href="structmbedtls__ecp__keypair.html">mbedtls_ecdsa_context</a> *ctx, <a class="code" href="ecp_8h.html#af79e530ea8f8416480f805baa20b1a2d">mbedtls_ecp_group_id</a> gid,</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</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="l00243"></a><span class="lineno"> 243</span> </div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="keywordtype">int</span> <a class="code" href="ecdsa_8h.html#a6de8efd872cfe1bc2ee93b4a5584226c">mbedtls_ecdsa_from_keypair</a>( <a class="code" href="structmbedtls__ecp__keypair.html">mbedtls_ecdsa_context</a> *ctx, <span class="keyword">const</span> <a class="code" href="structmbedtls__ecp__keypair.html">mbedtls_ecp_keypair</a> *key );</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="keywordtype">void</span> <a class="code" href="ecdsa_8h.html#aca644ee02921388fdc42eb06377f4b62">mbedtls_ecdsa_init</a>( <a class="code" href="structmbedtls__ecp__keypair.html">mbedtls_ecdsa_context</a> *ctx );</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="keywordtype">void</span> <a class="code" href="ecdsa_8h.html#a28dd93cb376a51cce39f062858c1c186">mbedtls_ecdsa_free</a>( <a class="code" href="structmbedtls__ecp__keypair.html">mbedtls_ecdsa_context</a> *ctx );</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> }</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> </div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="preprocessor">#endif </span><span class="comment">/* ecdsa.h */</span><span class="preprocessor"></span></div><div class="ttc" id="ecdsa_8h_html_a28dd93cb376a51cce39f062858c1c186"><div class="ttname"><a href="ecdsa_8h.html#a28dd93cb376a51cce39f062858c1c186">mbedtls_ecdsa_free</a></div><div class="ttdeci">void mbedtls_ecdsa_free(mbedtls_ecdsa_context *ctx)</div><div class="ttdoc">Free context. </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="structmbedtls__ecp__keypair_html"><div class="ttname"><a href="structmbedtls__ecp__keypair.html">mbedtls_ecp_keypair</a></div><div class="ttdoc">ECP key pair structure. </div><div class="ttdef"><b>Definition:</b> <a href="ecp_8h_source.html#l00165">ecp.h:165</a></div></div>
<div class="ttc" id="ecdsa_8h_html_aca644ee02921388fdc42eb06377f4b62"><div class="ttname"><a href="ecdsa_8h.html#aca644ee02921388fdc42eb06377f4b62">mbedtls_ecdsa_init</a></div><div class="ttdeci">void mbedtls_ecdsa_init(mbedtls_ecdsa_context *ctx)</div><div class="ttdoc">Initialize context. </div></div>
<div class="ttc" id="ecdsa_8h_html_a2292032f359fda59a7fd14911cc56f38"><div class="ttname"><a href="ecdsa_8h.html#a2292032f359fda59a7fd14911cc56f38">mbedtls_ecdsa_verify</a></div><div class="ttdeci">int mbedtls_ecdsa_verify(mbedtls_ecp_group *grp, const unsigned char *buf, size_t blen, const mbedtls_ecp_point *Q, const mbedtls_mpi *r, const mbedtls_mpi *s)</div><div class="ttdoc">Verify ECDSA signature of a previously hashed message. </div></div>
<div class="ttc" id="structmbedtls__ecp__group_html"><div class="ttname"><a href="structmbedtls__ecp__group.html">mbedtls_ecp_group</a></div><div class="ttdoc">ECP group structure. </div><div class="ttdef"><b>Definition:</b> <a href="ecp_8h_source.html#l00138">ecp.h:138</a></div></div>
<div class="ttc" id="ecdsa_8h_html_af10f6fda2169862871d0ac07555c8641"><div class="ttname"><a href="ecdsa_8h.html#af10f6fda2169862871d0ac07555c8641">mbedtls_ecdsa_sign</a></div><div class="ttdeci">int mbedtls_ecdsa_sign(mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s, const mbedtls_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="ecdsa_8h_html_a6de8efd872cfe1bc2ee93b4a5584226c"><div class="ttname"><a href="ecdsa_8h.html#a6de8efd872cfe1bc2ee93b4a5584226c">mbedtls_ecdsa_from_keypair</a></div><div class="ttdeci">int mbedtls_ecdsa_from_keypair(mbedtls_ecdsa_context *ctx, const mbedtls_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_a381af8cc9ab0146a4cf1ba5226c81a8f"><div class="ttname"><a href="ecdsa_8h.html#a381af8cc9ab0146a4cf1ba5226c81a8f">mbedtls_ecdsa_sign_det</a></div><div class="ttdeci">int mbedtls_ecdsa_sign_det(mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s, const mbedtls_mpi *d, const unsigned char *buf, size_t blen, mbedtls_md_type_t md_alg)</div><div class="ttdoc">Compute ECDSA signature of a previously hashed message, deterministic version (RFC 6979)...</div></div>
<div class="ttc" id="ecdsa_8h_html_a86ad4c743272c83310c20585ec7a182f"><div class="ttname"><a href="ecdsa_8h.html#a86ad4c743272c83310c20585ec7a182f">mbedtls_ecdsa_context</a></div><div class="ttdeci">mbedtls_ecp_keypair mbedtls_ecdsa_context</div><div class="ttdoc">ECDSA context structure. </div><div class="ttdef"><b>Definition:</b> <a href="ecdsa_8h_source.html#l00052">ecdsa.h:52</a></div></div>
<div class="ttc" id="ecp_8h_html_af79e530ea8f8416480f805baa20b1a2d"><div class="ttname"><a href="ecp_8h.html#af79e530ea8f8416480f805baa20b1a2d">mbedtls_ecp_group_id</a></div><div class="ttdeci">mbedtls_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#l00062">ecp.h:62</a></div></div>
<div class="ttc" id="ecdsa_8h_html_ab909bd06650e761e9fd176a86bd1ce17"><div class="ttname"><a href="ecdsa_8h.html#ab909bd06650e761e9fd176a86bd1ce17">mbedtls_ecdsa_genkey</a></div><div class="ttdeci">int mbedtls_ecdsa_genkey(mbedtls_ecdsa_context *ctx, mbedtls_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="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="ecdsa_8h_html_a3827a7cf6502530e831e0bb1fcfdd5d8"><div class="ttname"><a href="ecdsa_8h.html#a3827a7cf6502530e831e0bb1fcfdd5d8">mbedtls_ecdsa_write_signature_det</a></div><div class="ttdeci">int mbedtls_ecdsa_write_signature_det(mbedtls_ecdsa_context *ctx, const unsigned char *hash, size_t hlen, unsigned char *sig, size_t *slen, mbedtls_md_type_t md_alg) MBEDTLS_DEPRECATED</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="structmbedtls__mpi_html"><div class="ttname"><a href="structmbedtls__mpi.html">mbedtls_mpi</a></div><div class="ttdoc">MPI structure. </div><div class="ttdef"><b>Definition:</b> <a href="bignum_8h_source.html#l00179">bignum.h:179</a></div></div>
<div class="ttc" id="ecdsa_8h_html_a8085ade3e127118aa615f65cb1d393d5"><div class="ttname"><a href="ecdsa_8h.html#a8085ade3e127118aa615f65cb1d393d5">mbedtls_ecdsa_read_signature</a></div><div class="ttdeci">int mbedtls_ecdsa_read_signature(mbedtls_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="structmbedtls__ecp__point_html"><div class="ttname"><a href="structmbedtls__ecp__point.html">mbedtls_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#l00106">ecp.h:106</a></div></div>
<div class="ttc" id="md_8h_html_a219313cb40503ec3e34a857ab98b2296"><div class="ttname"><a href="md_8h.html#a219313cb40503ec3e34a857ab98b2296">mbedtls_md_type_t</a></div><div class="ttdeci">mbedtls_md_type_t</div><div class="ttdef"><b>Definition:</b> <a href="md_8h_source.html#l00039">md.h:39</a></div></div>
<div class="ttc" id="ecdsa_8h_html_aa9f53b232ef244efb301233d111930dc"><div class="ttname"><a href="ecdsa_8h.html#aa9f53b232ef244efb301233d111930dc">MBEDTLS_DEPRECATED</a></div><div class="ttdeci">#define MBEDTLS_DEPRECATED</div><div class="ttdef"><b>Definition:</b> <a href="ecdsa_8h_source.html#l00170">ecdsa.h:170</a></div></div>
<div class="ttc" id="ecdsa_8h_html_a76da70289de1f746ad9cce1eadf7b135"><div class="ttname"><a href="ecdsa_8h.html#a76da70289de1f746ad9cce1eadf7b135">mbedtls_ecdsa_write_signature</a></div><div class="ttdeci">int mbedtls_ecdsa_write_signature(mbedtls_ecdsa_context *ctx, mbedtls_md_type_t md_alg, 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>
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