Using TLS to Secure QUIC
draft-ietf-quic-tls-32
QUIC M. Thomson, Ed.
Internet-Draft Mozilla
Intended status: Standards Track S. Turner, Ed.
Expires: 23 April 2021 sn3rd
20 October 2020
Using TLS to Secure QUIC
draft-ietf-quic-tls-32
Abstract
This document describes how Transport Layer Security (TLS) is used to
secure QUIC.
Note to Readers
Discussion of this draft takes place on the QUIC working group
mailing list (quic@ietf.org), which is archived at
https://mailarchive.ietf.org/arch/search/?email_list=quic.
Working Group information can be found at https://github.com/quicwg;
source code and issues list for this draft can be found at
https://github.com/quicwg/base-drafts/labels/-tls.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
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This Internet-Draft will expire on 23 April 2021.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
Thomson & Turner Expires 23 April 2021 [Page 1]
Internet-Draft Using TLS to Secure QUIC October 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Notational Conventions . . . . . . . . . . . . . . . . . . . 4
2.1. TLS Overview . . . . . . . . . . . . . . . . . . . . . . 5
3. Protocol Overview . . . . . . . . . . . . . . . . . . . . . . 7
4. Carrying TLS Messages . . . . . . . . . . . . . . . . . . . . 8
4.1. Interface to TLS . . . . . . . . . . . . . . . . . . . . 9
4.1.1. Handshake Complete . . . . . . . . . . . . . . . . . 10
4.1.2. Handshake Confirmed . . . . . . . . . . . . . . . . . 10
4.1.3. Sending and Receiving Handshake Messages . . . . . . 10
4.1.4. Encryption Level Changes . . . . . . . . . . . . . . 12
4.1.5. TLS Interface Summary . . . . . . . . . . . . . . . . 14
4.2. TLS Version . . . . . . . . . . . . . . . . . . . . . . . 15
4.3. ClientHello Size . . . . . . . . . . . . . . . . . . . . 15
4.4. Peer Authentication . . . . . . . . . . . . . . . . . . . 16
4.5. Session Resumption . . . . . . . . . . . . . . . . . . . 17
4.6. 0-RTT . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.6.1. Enabling 0-RTT . . . . . . . . . . . . . . . . . . . 18
4.6.2. Accepting and Rejecting 0-RTT . . . . . . . . . . . . 18
4.6.3. Validating 0-RTT Configuration . . . . . . . . . . . 19
4.7. HelloRetryRequest . . . . . . . . . . . . . . . . . . . . 19
4.8. TLS Errors . . . . . . . . . . . . . . . . . . . . . . . 19
4.9. Discarding Unused Keys . . . . . . . . . . . . . . . . . 20
4.9.1. Discarding Initial Keys . . . . . . . . . . . . . . . 20
4.9.2. Discarding Handshake Keys . . . . . . . . . . . . . . 21
4.9.3. Discarding 0-RTT Keys . . . . . . . . . . . . . . . . 21
5. Packet Protection . . . . . . . . . . . . . . . . . . . . . . 21
5.1. Packet Protection Keys . . . . . . . . . . . . . . . . . 22
5.2. Initial Secrets . . . . . . . . . . . . . . . . . . . . . 23
5.3. AEAD Usage . . . . . . . . . . . . . . . . . . . . . . . 24
5.4. Header Protection . . . . . . . . . . . . . . . . . . . . 25
5.4.1. Header Protection Application . . . . . . . . . . . . 26
5.4.2. Header Protection Sample . . . . . . . . . . . . . . 27
5.4.3. AES-Based Header Protection . . . . . . . . . . . . . 29
5.4.4. ChaCha20-Based Header Protection . . . . . . . . . . 29
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