<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qsslellipticcurve.cpp --> <title>QSslEllipticCurve Class | Qt Network 5.9</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.9</td><td ><a href="qtnetwork-index.html">Qt Network</a></td><td ><a href="qtnetwork-module.html">C++ Classes</a></td><td >QSslEllipticCurve</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#static-public-members">Static Public Members</a></li> <li class="level1"><a href="#related-non-members">Related Non-Members</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">QSslEllipticCurve Class</h1> <!-- $$$QSslEllipticCurve-brief --> <p>Represents an elliptic curve for use by elliptic-curve cipher algorithms. <a href="#details">More...</a></p> <!-- @@@QSslEllipticCurve --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QSslEllipticCurve></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += network</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 5.5</td></tr></table></div><ul> <li><a href="qsslellipticcurve-members.html">List of all members, including inherited members</a></li> </ul> <p><b>Note:</b> All functions in this class are reentrant.</p> <a name="public-functions"></a> <h2 id="public-functions">Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#QSslEllipticCurve">QSslEllipticCurve</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#isTlsNamedCurve">isTlsNamedCurve</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#isValid">isValid</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#longName">longName</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#shortName">shortName</a></b>() const</td></tr> </table></div> <a name="static-public-members"></a> <h2 id="static-public-members">Static Public Members</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> QSslEllipticCurve </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#fromLongName">fromLongName</a></b>(const QString &<i>name</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QSslEllipticCurve </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#fromShortName">fromShortName</a></b>(const QString &<i>name</i>)</td></tr> </table></div> <a name="related-non-members"></a> <h2 id="related-non-members">Related Non-Members</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#operator-not-eq">operator!=</a></b>(QSslEllipticCurve <i>lhs</i>, QSslEllipticCurve <i>rhs</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QDebug </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#operator-lt-lt">operator<<</a></b>(QDebug <i>debug</i>, QSslEllipticCurve <i>curve</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qsslellipticcurve.html#operator-eq-eq">operator==</a></b>(QSslEllipticCurve <i>lhs</i>, QSslEllipticCurve <i>rhs</i>)</td></tr> </table></div> <a name="details"></a> <!-- $$$QSslEllipticCurve-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>Represents an elliptic curve for use by elliptic-curve cipher algorithms.</p> <p>The class <a href="qsslellipticcurve.html">QSslEllipticCurve</a> represents an elliptic curve for use by elliptic-curve cipher algorithms.</p> <p>Elliptic curves can be constructed from a "short name" (SN) (<a href="qsslellipticcurve.html#fromShortName">fromShortName</a>()), and by a call to <a href="qsslconfiguration.html#supportedEllipticCurves">QSslConfiguration::supportedEllipticCurves</a>().</p> <p><a href="qsslellipticcurve.html">QSslEllipticCurve</a> instances can be compared for equality and can be used as keys in <a href="../qtcore/qhash.html#qhash">QHash</a> and <a href="../qtcore/qset.html">QSet</a>. They cannot be used as key in a <a href="../qtcore/qmap.html">QMap</a>.</p> </div> <!-- @@@QSslEllipticCurve --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QSslEllipticCurve[overload1]$$$QSslEllipticCurve --> <h3 class="fn" id="QSslEllipticCurve"><a name="QSslEllipticCurve"></a>QSslEllipticCurve::<span class="name">QSslEllipticCurve</span>()</h3> <p>Constructs an invalid elliptic curve.</p> <p><b>See also </b><a href="qsslellipticcurve.html#isValid">isValid</a>() and <a href="qsslconfiguration.html#supportedEllipticCurves">QSslConfiguration::supportedEllipticCurves</a>().</p> <!-- @@@QSslEllipticCurve --> <!-- $$$fromLongName[overload1]$$$fromLongNameconstQString& --> <h3 class="fn" id="fromLongName"><a name="fromLongName"></a><code>[static] </code><span class="type"><a href="qsslellipticcurve.html#QSslEllipticCurve">QSslEllipticCurve</a></span> QSslEllipticCurve::<span class="name">fromLongName</span>(const <span class="type"><a href="../qtcore/qstring.html">QString</a></span> &<i>name</i>)</h3> <p>Returns an <a href="qsslellipticcurve.html">QSslEllipticCurve</a> instance representing the named curve <i>name</i>. The <i>name</i> is a long name for the curve, whose exact spelling depends on the SSL implementation.</p> <p>If the given <i>name</i> is not supported, returns an invalid <a href="qsslellipticcurve.html">QSslEllipticCurve</a> instance.</p> <p><b>Note: </b>The OpenSSL implementation of this function treats the name case-sensitively.</p><p><b>See also </b><a href="qsslellipticcurve.html#longName">longName</a>().</p> <!-- @@@fromLongName --> <!-- $$$fromShortName[overload1]$$$fromShortNameconstQString& --> <h3 class="fn" id="fromShortName"><a name="fromShortName"></a><code>[static] </code><span class="type"><a href="qsslellipticcurve.html#QSslEllipticCurve">QSslEllipticCurve</a></span> QSslEllipticCurve::<span class="name">fromShortName</span>(const <span class="type"><a href="../qtcore/qstring.html">QString</a></span> &<i>name</i>)</h3> <p>Returns an <a href="qsslellipticcurve.html">QSslEllipticCurve</a> instance representing the named curve <i>name</i>. The <i>name</i> is the conventional short name for the curve, as represented by RFC 4492 (for instance <code>secp521r1</code>), or as NIST short names (for instance <code>P-256</code>). The actual set of recognized names depends on the SSL implementation.</p> <p>If the given <i>name</i> is not supported, returns an invalid <a href="qsslellipticcurve.html">QSslEllipticCurve</a> instance.</p> <p><b>Note: </b>The OpenSSL implementation of this function treats the name case-sensitively.</p><p><b>See also </b><a href="qsslellipticcurve.html#shortName">shortName</a>().</p> <!-- @@@fromShortName --> <!-- $$$isTlsNamedCurve[overload1]$$$isTlsNamedCurve --> <h3 class="fn" id="isTlsNamedCurve"><a name="isTlsNamedCurve"></a><span class="type">bool</span> QSslEllipticCurve::<span class="name">isTlsNamedCurve</span>() const</h3> <p>Returns true if this elliptic curve is one of the named curves that can be used in the key exchange when using an elliptic curve cipher with TLS; false otherwise.</p> <!-- @@@isTlsNamedCurve --> <!-- $$$isValid[overload1]$$$isValid --> <h3 class="fn" id="isValid"><a name="isValid"></a><span class="type">bool</span> QSslEllipticCurve::<span class="name">isValid</span>() const</h3> <p>Returns true if this elliptic curve is a valid curve, false otherwise.</p> <!-- @@@isValid --> <!-- $$$longName[overload1]$$$longName --> <h3 class="fn" id="longName"><a name="longName"></a><span class="type"><a href="../qtcore/qstring.html">QString</a></span> QSslEllipticCurve::<span class="name">longName</span>() const</h3> <p>Returns the conventional long name for this curve. If this curve is invalid, returns an empty string.</p> <p><b>See also </b><a href="qsslellipticcurve.html#shortName">shortName</a>().</p> <!-- @@@longName --> <!-- $$$shortName[overload1]$$$shortName --> <h3 class="fn" id="shortName"><a name="shortName"></a><span class="type"><a href="../qtcore/qstring.html">QString</a></span> QSslEllipticCurve::<span class="name">shortName</span>() const</h3> <p>Returns the conventional short name for this curve. If this curve is invalid, returns an empty string.</p> <p><b>See also </b><a href="qsslellipticcurve.html#longName">longName</a>().</p> <!-- @@@shortName --> </div> <div class="relnonmem"> <h2>Related Non-Members</h2> <!-- $$$operator!=[overload1]$$$operator!=QSslEllipticCurveQSslEllipticCurve --> <h3 class="fn" id="operator-not-eq"><a name="operator-not-eq"></a><span class="type">bool</span> <span class="name">operator!=</span>(<span class="type"><a href="qsslellipticcurve.html#QSslEllipticCurve">QSslEllipticCurve</a></span> <i>lhs</i>, <span class="type"><a href="qsslellipticcurve.html#QSslEllipticCurve">QSslEllipticCurve</a></span> <i>rhs</i>)</h3> <p>Returns true if the curve <i>lhs</i> represents a different curve than <i>rhs</i>; false otherwise.</p> <p>This function was introduced in Qt 5.5.</p> <!-- @@@operator!= --> <!-- $$$operator<<[overload1]$$$operator<<QDebugQSslEllipticCurve --> <h3 class="fn" id="operator-lt-lt"><a name="operator-lt-lt"></a><span class="type"><a href="../qtcore/qdebug.html">QDebug</a></span> <span class="name">operator<<</span>(<span class="type"><a href="../qtcore/qdebug.html">QDebug</a></span> <i>debug</i>, <span class="type"><a href="qsslellipticcurve.html#QSslEllipticCurve">QSslEllipticCurve</a></span> <i>curve</i>)</h3> <p>Writes the elliptic curve <i>curve</i> into the debug object <i>debug</i> for debugging purposes.</p> <p>This function was introduced in Qt 5.5.</p> <p><b>See also </b>Debugging Techniques.</p> <!-- @@@operator<< --> <!-- $$$operator==[overload1]$$$operator==QSslEllipticCurveQSslEllipticCurve --> <h3 class="fn" id="operator-eq-eq"><a name="operator-eq-eq"></a><span class="type">bool</span> <span class="name">operator==</span>(<span class="type"><a href="qsslellipticcurve.html#QSslEllipticCurve">QSslEllipticCurve</a></span> <i>lhs</i>, <span class="type"><a href="qsslellipticcurve.html#QSslEllipticCurve">QSslEllipticCurve</a></span> <i>rhs</i>)</h3> <p>Returns true if the curve <i>lhs</i> represents the same curve of <i>rhs</i>;</p> <p>This function was introduced in Qt 5.5.</p> <!-- @@@operator== --> </div> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>