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draft-ietf-quic-tls.html
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<!DOCTYPE html>
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<meta charset="utf-8">
<meta content="Common,Latin" name="scripts">
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<title>Using TLS to Secure QUIC</title>
<meta content="Martin Thomson" name="author">
<meta content="Sean Turner" name="author">
<meta content="
This document describes how Transport Layer Security (TLS) is used to secure
QUIC.
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<body>
<table class="ears">
<thead><tr>
<td class="left">Internet-Draft</td>
<td class="center">Using TLS to Secure QUIC</td>
<td class="right">January 2021</td>
</tr></thead>
<tfoot><tr>
<td class="left">Thomson & Turner</td>
<td class="center">Expires 23 July 2021</td>
<td class="right">[Page]</td>
</tr></tfoot>
</table>
<div id="external-metadata" class="document-information"></div>
<div id="internal-metadata" class="document-information">
<dl id="identifiers">
<dt class="label-workgroup">Workgroup:</dt>
<dd class="workgroup">QUIC</dd>
<dt class="label-internet-draft">Internet-Draft:</dt>
<dd class="internet-draft">draft-ietf-quic-tls</dd>
<dt class="label-published">Published:</dt>
<dd class="published">
<time datetime="2021-01-19" class="published">19 January 2021</time>
</dd>
<dt class="label-intended-status">Intended Status:</dt>
<dd class="intended-status">Standards Track</dd>
<dt class="label-expires">Expires:</dt>
<dd class="expires"><time datetime="2021-07-23">23 July 2021</time></dd>
<dt class="label-authors">Authors:</dt>
<dd class="authors">
<div class="author">
<div class="author-name">M. Thomson, <span class="editor">Ed.</span>
</div>
<div class="org">Mozilla</div>
</div>
<div class="author">
<div class="author-name">S. Turner, <span class="editor">Ed.</span>
</div>
<div class="org">sn3rd</div>
</div>
</dd>
</dl>
</div>
<h1 id="title">Using TLS to Secure QUIC</h1>
<section id="section-abstract">
<h2 id="abstract"><a href="#abstract" class="selfRef">Abstract</a></h2>
<p id="section-abstract-1">This document describes how Transport Layer Security (TLS) is used to secure
QUIC.<a href="#section-abstract-1" class="pilcrow">¶</a></p>
</section>
<section class="note" id="section-note.1">
<h2 id="name-note-to-readers">
<a href="#name-note-to-readers" class="section-name selfRef">Note to Readers</a>
</h2>
<p id="section-note.1-1">Discussion of this draft takes place on the QUIC working group mailing list
(quic@ietf.org), which is archived at
<span><a href="https://mailarchive.ietf.org/arch/search/?email_list=quic">https://mailarchive.ietf.org/arch/search/?email_list=quic</a></span>.<a href="#section-note.1-1" class="pilcrow">¶</a></p>
<p id="section-note.1-2">Working Group information can be found at <span><a href="https://github.com/quicwg">https://github.com/quicwg</a></span>; source
code and issues list for this draft can be found at
<span><a href="https://github.com/quicwg/base-drafts/labels/-tls">https://github.com/quicwg/base-drafts/labels/-tls</a></span>.<a href="#section-note.1-2" class="pilcrow">¶</a></p>
</section>
<div id="status-of-memo">
<section id="section-boilerplate.1">
<h2 id="name-status-of-this-memo">
<a href="#name-status-of-this-memo" class="section-name selfRef">Status of This Memo</a>
</h2>
<p id="section-boilerplate.1-1">
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.<a href="#section-boilerplate.1-1" class="pilcrow">¶</a></p>
<p id="section-boilerplate.1-2">
Internet-Drafts are working documents of the Internet Engineering Task
Force (IETF). Note that other groups may also distribute working
documents as Internet-Drafts. The list of current Internet-Drafts is
at <span><a href="https://datatracker.ietf.org/drafts/current/">https://datatracker.ietf.org/drafts/current/</a></span>.<a href="#section-boilerplate.1-2" class="pilcrow">¶</a></p>
<p id="section-boilerplate.1-3">
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."<a href="#section-boilerplate.1-3" class="pilcrow">¶</a></p>
<p id="section-boilerplate.1-4">
This Internet-Draft will expire on 23 July 2021.<a href="#section-boilerplate.1-4" class="pilcrow">¶</a></p>
</section>
</div>
<div id="copyright">
<section id="section-boilerplate.2">
<h2 id="name-copyright-notice">
<a href="#name-copyright-notice" class="section-name selfRef">Copyright Notice</a>
</h2>
<p id="section-boilerplate.2-1">
Copyright (c) 2021 IETF Trust and the persons identified as the
document authors. All rights reserved.<a href="#section-boilerplate.2-1" class="pilcrow">¶</a></p>
<p id="section-boilerplate.2-2">
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(<span><a href="https://trustee.ietf.org/license-info">https://trustee.ietf.org/license-info</a></span>) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with
respect to this document. Code Components extracted from this
document must include Simplified BSD License text as described in
Section 4.e of the Trust Legal Provisions and are provided without
warranty as described in the Simplified BSD License.<a href="#section-boilerplate.2-2" class="pilcrow">¶</a></p>
</section>
</div>
<div id="toc">
<section id="section-toc.1">
<a href="#" onclick="scroll(0,0)" class="toplink">▲</a><h2 id="name-table-of-contents">
<a href="#name-table-of-contents" class="section-name selfRef">Table of Contents</a>
</h2>
<nav class="toc"><ul class="compact ulEmpty toc">
<li class="compact ulEmpty toc" id="section-toc.1-1.1">
<p id="section-toc.1-1.1.1" class="keepWithNext"><a href="#section-1" class="xref">1</a>. <a href="#name-introduction" class="xref">Introduction</a><a href="#section-toc.1-1.1.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.2">
<p id="section-toc.1-1.2.1" class="keepWithNext"><a href="#section-2" class="xref">2</a>. <a href="#name-notational-conventions" class="xref">Notational Conventions</a><a href="#section-toc.1-1.2.1" class="pilcrow">¶</a></p>
<ul class="compact ulEmpty toc">
<li class="compact ulEmpty toc" id="section-toc.1-1.2.2.1">
<p id="section-toc.1-1.2.2.1.1" class="keepWithNext"><a href="#section-2.1" class="xref">2.1</a>. <a href="#name-tls-overview" class="xref">TLS Overview</a><a href="#section-toc.1-1.2.2.1.1" class="pilcrow">¶</a></p>
</li>
</ul>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.3">
<p id="section-toc.1-1.3.1"><a href="#section-3" class="xref">3</a>. <a href="#name-protocol-overview" class="xref">Protocol Overview</a><a href="#section-toc.1-1.3.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4">
<p id="section-toc.1-1.4.1"><a href="#section-4" class="xref">4</a>. <a href="#name-carrying-tls-messages" class="xref">Carrying TLS Messages</a><a href="#section-toc.1-1.4.1" class="pilcrow">¶</a></p>
<ul class="compact ulEmpty toc">
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.1">
<p id="section-toc.1-1.4.2.1.1"><a href="#section-4.1" class="xref">4.1</a>. <a href="#name-interface-to-tls" class="xref">Interface to TLS</a><a href="#section-toc.1-1.4.2.1.1" class="pilcrow">¶</a></p>
<ul class="compact ulEmpty toc">
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.1.2.1">
<p id="section-toc.1-1.4.2.1.2.1.1"><a href="#section-4.1.1" class="xref">4.1.1</a>. <a href="#name-handshake-complete" class="xref">Handshake Complete</a><a href="#section-toc.1-1.4.2.1.2.1.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.1.2.2">
<p id="section-toc.1-1.4.2.1.2.2.1"><a href="#section-4.1.2" class="xref">4.1.2</a>. <a href="#name-handshake-confirmed" class="xref">Handshake Confirmed</a><a href="#section-toc.1-1.4.2.1.2.2.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.1.2.3">
<p id="section-toc.1-1.4.2.1.2.3.1"><a href="#section-4.1.3" class="xref">4.1.3</a>. <a href="#name-sending-and-receiving-hands" class="xref">Sending and Receiving Handshake Messages</a><a href="#section-toc.1-1.4.2.1.2.3.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.1.2.4">
<p id="section-toc.1-1.4.2.1.2.4.1"><a href="#section-4.1.4" class="xref">4.1.4</a>. <a href="#name-encryption-level-changes" class="xref">Encryption Level Changes</a><a href="#section-toc.1-1.4.2.1.2.4.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.1.2.5">
<p id="section-toc.1-1.4.2.1.2.5.1"><a href="#section-4.1.5" class="xref">4.1.5</a>. <a href="#name-tls-interface-summary" class="xref">TLS Interface Summary</a><a href="#section-toc.1-1.4.2.1.2.5.1" class="pilcrow">¶</a></p>
</li>
</ul>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.2">
<p id="section-toc.1-1.4.2.2.1"><a href="#section-4.2" class="xref">4.2</a>. <a href="#name-tls-version" class="xref">TLS Version</a><a href="#section-toc.1-1.4.2.2.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.3">
<p id="section-toc.1-1.4.2.3.1"><a href="#section-4.3" class="xref">4.3</a>. <a href="#name-clienthello-size" class="xref">ClientHello Size</a><a href="#section-toc.1-1.4.2.3.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.4">
<p id="section-toc.1-1.4.2.4.1"><a href="#section-4.4" class="xref">4.4</a>. <a href="#name-peer-authentication" class="xref">Peer Authentication</a><a href="#section-toc.1-1.4.2.4.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.5">
<p id="section-toc.1-1.4.2.5.1"><a href="#section-4.5" class="xref">4.5</a>. <a href="#name-session-resumption" class="xref">Session Resumption</a><a href="#section-toc.1-1.4.2.5.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.6">
<p id="section-toc.1-1.4.2.6.1"><a href="#section-4.6" class="xref">4.6</a>. <a href="#name-0-rtt" class="xref">0-RTT</a><a href="#section-toc.1-1.4.2.6.1" class="pilcrow">¶</a></p>
<ul class="compact ulEmpty toc">
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.6.2.1">
<p id="section-toc.1-1.4.2.6.2.1.1"><a href="#section-4.6.1" class="xref">4.6.1</a>. <a href="#name-enabling-0-rtt" class="xref">Enabling 0-RTT</a><a href="#section-toc.1-1.4.2.6.2.1.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.6.2.2">
<p id="section-toc.1-1.4.2.6.2.2.1"><a href="#section-4.6.2" class="xref">4.6.2</a>. <a href="#name-accepting-and-rejecting-0-r" class="xref">Accepting and Rejecting 0-RTT</a><a href="#section-toc.1-1.4.2.6.2.2.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.6.2.3">
<p id="section-toc.1-1.4.2.6.2.3.1"><a href="#section-4.6.3" class="xref">4.6.3</a>. <a href="#name-validating-0-rtt-configurat" class="xref">Validating 0-RTT Configuration</a><a href="#section-toc.1-1.4.2.6.2.3.1" class="pilcrow">¶</a></p>
</li>
</ul>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.7">
<p id="section-toc.1-1.4.2.7.1"><a href="#section-4.7" class="xref">4.7</a>. <a href="#name-helloretryrequest" class="xref">HelloRetryRequest</a><a href="#section-toc.1-1.4.2.7.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.8">
<p id="section-toc.1-1.4.2.8.1"><a href="#section-4.8" class="xref">4.8</a>. <a href="#name-tls-errors" class="xref">TLS Errors</a><a href="#section-toc.1-1.4.2.8.1" class="pilcrow">¶</a></p>
</li>
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.9">
<p id="section-toc.1-1.4.2.9.1"><a href="#section-4.9" class="xref">4.9</a>. <a href="#name-discarding-unused-keys" class="xref">Discarding Unused Keys</a><a href="#section-toc.1-1.4.2.9.1" class="pilcrow">¶</a></p>
<ul class="compact ulEmpty toc">
<li class="compact ulEmpty toc" id="section-toc.1-1.4.2.9.2.1">