<!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 1.8.14"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>Crypto++: dsa.h File 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">Crypto++  <span id="projectnumber">7.0</span> </div> <div id="projectbrief">Free C++ class library of cryptographic schemes</div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.14 --> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(function() { initMenu('',false,false,'search.php','Search'); }); /* @license-end */</script> <div id="main-nav"></div> </div><!-- top --> <div class="header"> <div class="summary"> <a href="#enum-members">Enumerations</a> | <a href="#func-members">Functions</a> </div> <div class="headertitle"> <div class="title">dsa.h File Reference</div> </div> </div><!--header--> <div class="contents"> <p>Classes for the DSA signature algorithm. <a href="#details">More...</a></p> <p><a href="dsa_8h_source.html">Go to the source code of this file.</a></p> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a> Enumerations</h2></td></tr> <tr class="memitem:aa37ccfd70d4cc99ec03ebb6f9075fc94"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94">DSASignatureFormat</a> { <a class="el" href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94ac021b0f700ffc5a1a60fbe1b3306b58a">DSA_P1363</a>, <a class="el" href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94aca50e4543c82e6ae2f04358592c569d7">DSA_DER</a>, <a class="el" href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94ab6a0ff8c8d8721382dbb821397609b18">DSA_OPENPGP</a> }</td></tr> <tr class="memdesc:aa37ccfd70d4cc99ec03ebb6f9075fc94"><td class="mdescLeft"> </td><td class="mdescRight">DSA Signature Format. <a href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94">More...</a><br /></td></tr> <tr class="separator:aa37ccfd70d4cc99ec03ebb6f9075fc94"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> <tr class="memitem:a23661b9fd140d90749d334eb4bf59d02"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="dsa_8h.html#a23661b9fd140d90749d334eb4bf59d02">DSAConvertSignatureFormat</a> (byte *buffer, size_t bufferSize, <a class="el" href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94">DSASignatureFormat</a> toFormat, const byte *signature, size_t signatureLen, <a class="el" href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94">DSASignatureFormat</a> fromFormat)</td></tr> <tr class="memdesc:a23661b9fd140d90749d334eb4bf59d02"><td class="mdescLeft"> </td><td class="mdescRight">Converts between signature encoding formats. <a href="#a23661b9fd140d90749d334eb4bf59d02">More...</a><br /></td></tr> <tr class="separator:a23661b9fd140d90749d334eb4bf59d02"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>Classes for the DSA signature algorithm. </p> <p class="definition">Definition in file <a class="el" href="dsa_8h_source.html">dsa.h</a>.</p> </div><h2 class="groupheader">Enumeration Type Documentation</h2> <a id="aa37ccfd70d4cc99ec03ebb6f9075fc94"></a> <h2 class="memtitle"><span class="permalink"><a href="#aa37ccfd70d4cc99ec03ebb6f9075fc94">◆ </a></span>DSASignatureFormat</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">enum <a class="el" href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94">DSASignatureFormat</a></td> </tr> </table> </div><div class="memdoc"> <p>DSA Signature Format. </p> <p>The DSA signature format used by Crypto++ is as defined by IEEE P1363. Java and .Net use the DER format, and OpenPGP uses the OpenPGP format. </p> <table class="fieldtable"> <tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="aa37ccfd70d4cc99ec03ebb6f9075fc94ac021b0f700ffc5a1a60fbe1b3306b58a"></a>DSA_P1363 </td><td class="fielddoc"><p>Crypto++ native signature encoding format. </p> </td></tr> <tr><td class="fieldname"><a id="aa37ccfd70d4cc99ec03ebb6f9075fc94aca50e4543c82e6ae2f04358592c569d7"></a>DSA_DER </td><td class="fielddoc"><p>signature encoding format used by Java and .Net </p> </td></tr> <tr><td class="fieldname"><a id="aa37ccfd70d4cc99ec03ebb6f9075fc94ab6a0ff8c8d8721382dbb821397609b18"></a>DSA_OPENPGP </td><td class="fielddoc"><p>OpenPGP signature encoding format. </p> </td></tr> </table> <p class="definition">Definition at line <a class="el" href="dsa_8h_source.html#l00017">17</a> of file <a class="el" href="dsa_8h_source.html">dsa.h</a>.</p> </div> </div> <h2 class="groupheader">Function Documentation</h2> <a id="a23661b9fd140d90749d334eb4bf59d02"></a> <h2 class="memtitle"><span class="permalink"><a href="#a23661b9fd140d90749d334eb4bf59d02">◆ </a></span>DSAConvertSignatureFormat()</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">size_t DSAConvertSignatureFormat </td> <td>(</td> <td class="paramtype">byte * </td> <td class="paramname"><em>buffer</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">size_t </td> <td class="paramname"><em>bufferSize</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94">DSASignatureFormat</a> </td> <td class="paramname"><em>toFormat</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const byte * </td> <td class="paramname"><em>signature</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">size_t </td> <td class="paramname"><em>signatureLen</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="dsa_8h.html#aa37ccfd70d4cc99ec03ebb6f9075fc94">DSASignatureFormat</a> </td> <td class="paramname"><em>fromFormat</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Converts between signature encoding formats. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">buffer</td><td>byte buffer for the converted signature encoding </td></tr> <tr><td class="paramname">bufferSize</td><td>the length of the converted signature encoding buffer </td></tr> <tr><td class="paramname">toFormat</td><td>the source signature format </td></tr> <tr><td class="paramname">signature</td><td>byte buffer for the existing signature encoding </td></tr> <tr><td class="paramname">signatureLen</td><td>the length of the existing signature encoding buffer </td></tr> <tr><td class="paramname">fromFormat</td><td>the source signature format</td></tr> </table> </dd> </dl> <p>This function converts between these formats, and returns length of signature in the target format. If <code>toFormat == DSA_P1363</code>, then <code>bufferSize</code> must equal <code>publicKey.SignatureLength()</code> </p><dl class="section since"><dt>Since</dt><dd>Crypto++ 1.0 </dd></dl> <p class="definition">Definition at line <a class="el" href="dsa_8cpp_source.html#l00015">15</a> of file <a class="el" href="dsa_8cpp_source.html">dsa.cpp</a>.</p> </div> </div> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated on Sun Sep 16 2018 07:58:10 for Crypto++ by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.14 </small></address> </body> </html>