Using EAP-TLS with TLS 1.3
draft-ietf-emu-eap-tls13-04
Network Working Group J. Mattsson
Internet-Draft M. Sethi
Updates: 5216 (if approved) Ericsson
Intended status: Standards Track March 11, 2019
Expires: September 12, 2019
Using EAP-TLS with TLS 1.3
draft-ietf-emu-eap-tls13-04
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 updates RFC 5216.
Status of This Memo
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and may be updated, replaced, or obsoleted by other documents at any
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This Internet-Draft will expire on September 12, 2019.
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Mattsson & Sethi Expires September 12, 2019 [Page 1]
Internet-Draft EAP-TLS with TLS 1.3 March 2019
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements and Terminology . . . . . . . . . . . . . . 3
2. Protocol Overview . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Overview of the EAP-TLS Conversation . . . . . . . . . . 4
2.1.1. Base Case . . . . . . . . . . . . . . . . . . . . . . 4
2.1.2. Resumption . . . . . . . . . . . . . . . . . . . . . 7
2.1.3. Termination . . . . . . . . . . . . . . . . . . . . . 9
2.1.4. Privacy . . . . . . . . . . . . . . . . . . . . . . . 13
2.1.5. Fragmentation . . . . . . . . . . . . . . . . . . . . 14
2.2. Identity Verification . . . . . . . . . . . . . . . . . . 15
2.3. Key Hierarchy . . . . . . . . . . . . . . . . . . . . . . 15
2.4. Parameter Negotiation and Compliance Requirements . . . . 16
2.5. EAP State Machines . . . . . . . . . . . . . . . . . . . 17
3. Detailed Description of the EAP-TLS Protocol . . . . . . . . 17
4. IANA considerations . . . . . . . . . . . . . . . . . . . . . 17
5. Security Considerations . . . . . . . . . . . . . . . . . . . 18
5.1. Security Claims . . . . . . . . . . . . . . . . . . . . . 18
5.2. Peer and Server Identities . . . . . . . . . . . . . . . 18
5.3. Certificate Validation . . . . . . . . . . . . . . . . . 18
5.4. Certificate Revocation . . . . . . . . . . . . . . . . . 18
5.5. Packet Modification Attacks . . . . . . . . . . . . . . . 19
5.6. Authorization . . . . . . . . . . . . . . . . . . . . . . 19
5.7. Resumption . . . . . . . . . . . . . . . . . . . . . . . 20
5.8. Privacy Considerations . . . . . . . . . . . . . . . . . 21
5.9. Pervasive Monitoring . . . . . . . . . . . . . . . . . . 22
5.10. Discovered Vulnerabilities . . . . . . . . . . . . . . . 23
6. References . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1. Normative References . . . . . . . . . . . . . . . . . . 23
6.2. Informative references . . . . . . . . . . . . . . . . . 24
Appendix A. Updated references . . . . . . . . . . . . . . . . . 27
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 27
Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 28
1. Introduction
The Extensible Authentication Protocol (EAP), defined in [RFC3748],
provides a standard mechanism for support of multiple authentication
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