Using EAP-TLS with TLS 1.3
draft-ietf-emu-eap-tls13-11
Network Working Group J. Mattsson
Internet-Draft M. Sethi
Updates: 5216 (if approved) Ericsson
Intended status: Standards Track October 14, 2020
Expires: April 17, 2021
Using EAP-TLS with TLS 1.3
draft-ietf-emu-eap-tls13-11
Abstract
This document specifies the use of EAP-TLS with TLS 1.3 while
remaining backwards compatible with existing implementations of EAP-
TLS. TLS 1.3 provides significantly improved security, privacy, and
reduced latency when compared to earlier versions of TLS. EAP-TLS
with TLS 1.3 further improves security and privacy by mandating use
of privacy and revocation checking. This document also provides
guidance on authorization and resumption for EAP-TLS in general
(regardless of the underlying TLS version used). This document
updates RFC 5216.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on April 17, 2021.
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Mattsson & Sethi Expires April 17, 2021 [Page 1]
Internet-Draft EAP-TLS with TLS 1.3 October 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements and Terminology . . . . . . . . . . . . . . 4
2. Protocol Overview . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Overview of the EAP-TLS Conversation . . . . . . . . . . 4
2.1.1. Mutual Authentication . . . . . . . . . . . . . . . . 4
2.1.2. Ticket Establishment . . . . . . . . . . . . . . . . 5
2.1.3. Resumption . . . . . . . . . . . . . . . . . . . . . 6
2.1.4. Termination . . . . . . . . . . . . . . . . . . . . . 8
2.1.5. No Peer Authentication . . . . . . . . . . . . . . . 11
2.1.6. Hello Retry Request . . . . . . . . . . . . . . . . . 12
2.1.7. Identity . . . . . . . . . . . . . . . . . . . . . . 13
2.1.8. Privacy . . . . . . . . . . . . . . . . . . . . . . . 14
2.1.9. Fragmentation . . . . . . . . . . . . . . . . . . . . 14
2.2. Identity Verification . . . . . . . . . . . . . . . . . . 15
2.3. Key Hierarchy . . . . . . . . . . . . . . . . . . . . . . 16
2.4. Parameter Negotiation and Compliance Requirements . . . . 17
2.5. EAP State Machines . . . . . . . . . . . . . . . . . . . 17
3. Detailed Description of the EAP-TLS Protocol . . . . . . . . 19
4. IANA considerations . . . . . . . . . . . . . . . . . . . . . 19
5. Security Considerations . . . . . . . . . . . . . . . . . . . 19
5.1. Security Claims . . . . . . . . . . . . . . . . . . . . . 19
5.2. Peer and Server Identities . . . . . . . . . . . . . . . 20
5.3. Certificate Validation . . . . . . . . . . . . . . . . . 20
5.4. Certificate Revocation . . . . . . . . . . . . . . . . . 20
5.5. Packet Modification Attacks . . . . . . . . . . . . . . . 20
5.6. Authorization . . . . . . . . . . . . . . . . . . . . . . 21
5.7. Resumption . . . . . . . . . . . . . . . . . . . . . . . 21
5.8. Privacy Considerations . . . . . . . . . . . . . . . . . 23
5.9. Pervasive Monitoring . . . . . . . . . . . . . . . . . . 24
5.10. Discovered Vulnerabilities . . . . . . . . . . . . . . . 25
6. References . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.1. Normative References . . . . . . . . . . . . . . . . . . 25
6.2. Informative references . . . . . . . . . . . . . . . . . 26
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