<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>mbed TLS v2.6.0: mbedtls_gcm_context Struct Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">mbed TLS v2.6.0 </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.13 --> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> $(function() { initMenu('',false,false,'search.php','Search'); }); </script> <div id="main-nav"></div> </div><!-- top --> <div class="header"> <div class="summary"> <a href="#pub-attribs">Data Fields</a> </div> <div class="headertitle"> <div class="title">mbedtls_gcm_context Struct Reference</div> </div> </div><!--header--> <div class="contents"> <p>GCM context structure. <a href="structmbedtls__gcm__context.html#details">More...</a></p> <p><code>#include <<a class="el" href="gcm_8h_source.html">gcm.h</a>></code></p> <div class="dynheader"> Collaboration diagram for mbedtls_gcm_context:</div> <div class="dyncontent"> <div class="center"><img src="structmbedtls__gcm__context__coll__graph.png" border="0" usemap="#mbedtls__gcm__context_coll__map" alt="Collaboration graph"/></div> <map name="mbedtls__gcm__context_coll__map" id="mbedtls__gcm__context_coll__map"> <area shape="rect" id="node2" href="structmbedtls__cipher__context__t.html" title="Generic cipher context. " alt="" coords="5,95,268,121"/> <area shape="rect" id="node3" href="structmbedtls__cipher__info__t.html" title="Cipher information. " alt="" coords="21,5,253,32"/> </map> <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a> Data Fields</h2></td></tr> <tr class="memitem:a3687a336bb05c025fb3861ca99cd945d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structmbedtls__cipher__context__t.html">mbedtls_cipher_context_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structmbedtls__gcm__context.html#a3687a336bb05c025fb3861ca99cd945d">cipher_ctx</a></td></tr> <tr class="separator:a3687a336bb05c025fb3861ca99cd945d"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:af5731ab9002f0b1b913e66071e1138fc"><td class="memItemLeft" align="right" valign="top">uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structmbedtls__gcm__context.html#af5731ab9002f0b1b913e66071e1138fc">HL</a> [16]</td></tr> <tr class="separator:af5731ab9002f0b1b913e66071e1138fc"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a5935337c8028cc6fec0c5b9c7d0d4fd8"><td class="memItemLeft" align="right" valign="top">uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structmbedtls__gcm__context.html#a5935337c8028cc6fec0c5b9c7d0d4fd8">HH</a> [16]</td></tr> <tr class="separator:a5935337c8028cc6fec0c5b9c7d0d4fd8"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a7ca348b10a75f1ab46f7c5067c1ab6e7"><td class="memItemLeft" align="right" valign="top">uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structmbedtls__gcm__context.html#a7ca348b10a75f1ab46f7c5067c1ab6e7">len</a></td></tr> <tr class="separator:a7ca348b10a75f1ab46f7c5067c1ab6e7"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aabc65285117dd4b35998a328648faa20"><td class="memItemLeft" align="right" valign="top">uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structmbedtls__gcm__context.html#aabc65285117dd4b35998a328648faa20">add_len</a></td></tr> <tr class="separator:aabc65285117dd4b35998a328648faa20"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a0ad9a8fb116959218c800b0bc3caeaba"><td class="memItemLeft" align="right" valign="top">unsigned char </td><td class="memItemRight" valign="bottom"><a class="el" href="structmbedtls__gcm__context.html#a0ad9a8fb116959218c800b0bc3caeaba">base_ectr</a> [16]</td></tr> <tr class="separator:a0ad9a8fb116959218c800b0bc3caeaba"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a1a7eb48ed5911aeb2dd983da6cfd32bb"><td class="memItemLeft" align="right" valign="top">unsigned char </td><td class="memItemRight" valign="bottom"><a class="el" href="structmbedtls__gcm__context.html#a1a7eb48ed5911aeb2dd983da6cfd32bb">y</a> [16]</td></tr> <tr class="separator:a1a7eb48ed5911aeb2dd983da6cfd32bb"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a772f2b1c947e9a3631f55b241c421aca"><td class="memItemLeft" align="right" valign="top">unsigned char </td><td class="memItemRight" valign="bottom"><a class="el" href="structmbedtls__gcm__context.html#a772f2b1c947e9a3631f55b241c421aca">buf</a> [16]</td></tr> <tr class="separator:a772f2b1c947e9a3631f55b241c421aca"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a48f2fbbac9f7bb46411fea24ac433628"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structmbedtls__gcm__context.html#a48f2fbbac9f7bb46411fea24ac433628">mode</a></td></tr> <tr class="separator:a48f2fbbac9f7bb46411fea24ac433628"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>GCM context structure. </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00043">43</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div><h2 class="groupheader">Field Documentation</h2> <a id="aabc65285117dd4b35998a328648faa20"></a> <h2 class="memtitle"><span class="permalink"><a href="#aabc65285117dd4b35998a328648faa20">◆ </a></span>add_len</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">uint64_t mbedtls_gcm_context::add_len</td> </tr> </table> </div><div class="memdoc"> <p>Total add length </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00048">48</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div> </div> <a id="a0ad9a8fb116959218c800b0bc3caeaba"></a> <h2 class="memtitle"><span class="permalink"><a href="#a0ad9a8fb116959218c800b0bc3caeaba">◆ </a></span>base_ectr</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">unsigned char mbedtls_gcm_context::base_ectr[16]</td> </tr> </table> </div><div class="memdoc"> <p>First ECTR for tag </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00049">49</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div> </div> <a id="a772f2b1c947e9a3631f55b241c421aca"></a> <h2 class="memtitle"><span class="permalink"><a href="#a772f2b1c947e9a3631f55b241c421aca">◆ </a></span>buf</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">unsigned char mbedtls_gcm_context::buf[16]</td> </tr> </table> </div><div class="memdoc"> <p>buf working value </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00051">51</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div> </div> <a id="a3687a336bb05c025fb3861ca99cd945d"></a> <h2 class="memtitle"><span class="permalink"><a href="#a3687a336bb05c025fb3861ca99cd945d">◆ </a></span>cipher_ctx</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="structmbedtls__cipher__context__t.html">mbedtls_cipher_context_t</a> mbedtls_gcm_context::cipher_ctx</td> </tr> </table> </div><div class="memdoc"> <p>cipher context used </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00044">44</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div> </div> <a id="a5935337c8028cc6fec0c5b9c7d0d4fd8"></a> <h2 class="memtitle"><span class="permalink"><a href="#a5935337c8028cc6fec0c5b9c7d0d4fd8">◆ </a></span>HH</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">uint64_t mbedtls_gcm_context::HH[16]</td> </tr> </table> </div><div class="memdoc"> <p>Precalculated HTable </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00046">46</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div> </div> <a id="af5731ab9002f0b1b913e66071e1138fc"></a> <h2 class="memtitle"><span class="permalink"><a href="#af5731ab9002f0b1b913e66071e1138fc">◆ </a></span>HL</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">uint64_t mbedtls_gcm_context::HL[16]</td> </tr> </table> </div><div class="memdoc"> <p>Precalculated HTable </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00045">45</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div> </div> <a id="a7ca348b10a75f1ab46f7c5067c1ab6e7"></a> <h2 class="memtitle"><span class="permalink"><a href="#a7ca348b10a75f1ab46f7c5067c1ab6e7">◆ </a></span>len</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">uint64_t mbedtls_gcm_context::len</td> </tr> </table> </div><div class="memdoc"> <p>Total data length </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00047">47</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div> </div> <a id="a48f2fbbac9f7bb46411fea24ac433628"></a> <h2 class="memtitle"><span class="permalink"><a href="#a48f2fbbac9f7bb46411fea24ac433628">◆ </a></span>mode</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int mbedtls_gcm_context::mode</td> </tr> </table> </div><div class="memdoc"> <p>Encrypt or Decrypt </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00052">52</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div> </div> <a id="a1a7eb48ed5911aeb2dd983da6cfd32bb"></a> <h2 class="memtitle"><span class="permalink"><a href="#a1a7eb48ed5911aeb2dd983da6cfd32bb">◆ </a></span>y</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">unsigned char mbedtls_gcm_context::y[16]</td> </tr> </table> </div><div class="memdoc"> <p>Y working value </p> <p class="definition">Definition at line <a class="el" href="gcm_8h_source.html#l00050">50</a> of file <a class="el" href="gcm_8h_source.html">gcm.h</a>.</p> </div> </div> <hr/>The documentation for this struct was generated from the following file:<ul> <li><a class="el" href="gcm_8h_source.html">gcm.h</a></li> </ul> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated on Thu Dec 28 2017 18:33:30 for mbed TLS v2.6.0 by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.13 </small></address> </body> </html>