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<!-- This manual is last updated 4 March 2015 for version
3.4.9 of GnuTLS.
Copyright (C) 2001-2015 Free Software Foundation, Inc.\\
Copyright (C) 2001-2015 Nikos Mavrogiannopoulos
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<title>GnuTLS 3.4.9: TLS Extensions</title>
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<a name="TLS-Extensions"></a>
<div class="header">
<p>
Next: <a href="How-to-use-TLS-in-application-protocols.html#How-to-use-TLS-in-application-protocols" accesskey="n" rel="next">How to use TLS in application protocols</a>, Previous: <a href="The-TLS-Handshake-Protocol.html#The-TLS-Handshake-Protocol" accesskey="p" rel="prev">The TLS Handshake Protocol</a>, Up: <a href="Introduction-to-TLS.html#Introduction-to-TLS" accesskey="u" rel="up">Introduction to TLS</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Function-and-Data-Index.html#Function-and-Data-Index" title="Index" rel="index">Index</a>]</p>
</div>
<hr>
<a name="TLS-extensions"></a>
<h3 class="section">3.6 TLS extensions</h3>
<a name="index-TLS-extensions"></a>
<p>A number of extensions to the <acronym>TLS</acronym> protocol have been
proposed mainly in [<em>TLSEXT</em>]. The extensions supported
in <acronym>GnuTLS</acronym> are discussed in the subsections that follow.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">• <a href="Maximum-fragment-length-negotiation.html#Maximum-fragment-length-negotiation" accesskey="1">Maximum fragment length negotiation</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Server-name-indication.html#Server-name-indication" accesskey="2">Server name indication</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Session-tickets.html#Session-tickets" accesskey="3">Session tickets</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="HeartBeat.html#HeartBeat" accesskey="4">HeartBeat</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Safe-renegotiation.html#Safe-renegotiation" accesskey="5">Safe renegotiation</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="OCSP-status-request.html#OCSP-status-request" accesskey="6">OCSP status request</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="SRTP.html#SRTP" accesskey="7">SRTP</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Application-Layer-Protocol-Negotiation-_0028ALPN_0029.html#Application-Layer-Protocol-Negotiation-_0028ALPN_0029" accesskey="8">Application Layer Protocol Negotiation (ALPN)</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Extensions-and-Supplemental-Data.html#Extensions-and-Supplemental-Data" accesskey="9">Extensions and Supplemental Data</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
</table>
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