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draft-ietf-quic-tls.html
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<!DOCTYPE html>
<html lang="en" class="Internet-Draft">
<head>
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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.
" name="description">
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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">August 2020</td>
</tr></thead>
<tfoot><tr>
<td class="left">Thomson & Turner</td>
<td class="center">Expires 18 February 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-latest</dd>
<dt class="label-published">Published:</dt>
<dd class="published">
<time datetime="2020-08-17" class="published">17 August 2020</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="2021-02-18">18 February 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 18 February 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) 2020 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 toc ulEmpty">
<li class="compact toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty">
<li class="compact toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty">
<li class="compact toc ulEmpty" 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 toc ulEmpty">
<li class="compact toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty">
<li class="compact toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty" 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 toc ulEmpty">
<li class="compact toc ulEmpty" id="section-toc.1-1.4.2.9.2.1">
<p id="section-toc.1-1.4.2.9.2.1.1"><a href="#section-4.9.1" class="xref">4.9.1</a>. <a href="#name-discarding-initial-keys" class="xref">Discarding Initial Keys</a><a href="#section-toc.1-1.4.2.9.2.1.1" class="pilcrow">¶</a></p>
</li>
<li class="compact toc ulEmpty" id="section-toc.1-1.4.2.9.2.2">
<p id="section-toc.1-1.4.2.9.2.2.1"><a href="#section-4.9.2" class="xref">4.9.2</a>. <a href="#name-discarding-handshake-keys" class="xref">Discarding Handshake Keys</a><a href="#section-toc.1-1.4.2.9.2.2.1" class="pilcrow">¶</a></p>
</li>
<li class="compact toc ulEmpty" id="section-toc.1-1.4.2.9.2.3">
<p id="section-toc.1-1.4.2.9.2.3.1"><a href="#section-4.9.3" class="xref">4.9.3</a>. <a href="#name-discarding-0-rtt-keys" class="xref">Discarding 0-RTT Keys</a><a href="#section-toc.1-1.4.2.9.2.3.1" class="pilcrow">¶</a></p>
</li>
</ul>
</li>
</ul>
</li>
<li class="compact toc ulEmpty" id="section-toc.1-1.5">
<p id="section-toc.1-1.5.1"><a href="#section-5" class="xref">5</a>. <a href="#name-packet-protection" class="xref">Packet Protection</a><a href="#section-toc.1-1.5.1" class="pilcrow">¶</a></p>
<ul class="compact toc ulEmpty">
<li class="compact toc ulEmpty" id="section-toc.1-1.5.2.1">
<p id="section-toc.1-1.5.2.1.1"><a href="#section-5.1" class="xref">5.1</a>. <a href="#name-packet-protection-keys" class="xref">Packet Protection Keys</a><a href="#section-toc.1-1.5.2.1.1" class="pilcrow">¶</a></p>
</li>
<li class="compact toc ulEmpty" id="section-toc.1-1.5.2.2">
<p id="section-toc.1-1.5.2.2.1"><a href="#section-5.2" class="xref">5.2</a>. <a href="#name-initial-secrets" class="xref">Initial Secrets</a><a href="#section-toc.1-1.5.2.2.1" class="pilcrow">¶</a></p>
</li>