EMU Working Group S. Hartman, Ed.
Internet-Draft Painless Security
Intended status: Standards Track T. Clancy
Expires: November 15, 2012 Virginia Tech
K. Hoeper
Motorola Solutions, Inc.
May 14, 2012
Channel Binding Support for EAP Methods
draft-ietf-emu-chbind-15.txt
Abstract
This document defines how to implement channel bindings for
Extensible Authentication Protocol (EAP) methods to address the lying
Network Access Service (NAS) as well as the lying provider problem.
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Hartman, et al. Expires November 15, 2012 [Page 1]
Internet-Draft EAP-CHBIND May 2012
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 6
3. Problem Statement . . . . . . . . . . . . . . . . . . . . . . 6
4. Channel Bindings . . . . . . . . . . . . . . . . . . . . . . . 8
4.1. Types of EAP Channel Bindings . . . . . . . . . . . . . . 8
4.2. Channel Bindings in the Secure Association Protocol . . . 10
4.3. Channel Bindings Scope . . . . . . . . . . . . . . . . . . 11
5. Channel Binding Process . . . . . . . . . . . . . . . . . . . 13
5.1. Protocol Operation . . . . . . . . . . . . . . . . . . . . 13
5.2. Channel Binding Consistency Check . . . . . . . . . . . . 15
5.3. EAP Protocol . . . . . . . . . . . . . . . . . . . . . . . 16
5.3.1. Channel Binding Codes . . . . . . . . . . . . . . . . 18
5.3.2. Namespace Identifiers . . . . . . . . . . . . . . . . 18
5.3.3. RADIUS Namespace . . . . . . . . . . . . . . . . . . . 18
6. System Requirements . . . . . . . . . . . . . . . . . . . . . 19
6.1. General Transport Protocol Requirements . . . . . . . . . 19
6.2. EAP Method Requirements . . . . . . . . . . . . . . . . . 20
7. Channel Binding TLV . . . . . . . . . . . . . . . . . . . . . 20
7.1. Requirements for Lower-Layer Bindings . . . . . . . . . . 20
7.2. EAP Lower Layer Attribute . . . . . . . . . . . . . . . . 21
8. AAA-Layer Bindings . . . . . . . . . . . . . . . . . . . . . . 21
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