EAP Re-authentication Protocol Extensions for Authenticated Anticipatory Keying (ERP/AAK)
draft-ietf-hokey-erp-aak-10
Network Working Group Z. Cao
Internet-Draft H. Deng
Intended status: Standards Track China Mobile
Expires: August 20, 2012 Q. Wu
Huawei
G. Zorn, Ed.
Network Zen
February 17, 2012
EAP Re-authentication Protocol Extensions for Authenticated Anticipatory
Keying (ERP/AAK)
draft-ietf-hokey-erp-aak-10
Abstract
The Extensible Authentication Protocol (EAP) is a generic framework
supporting multiple types of authentication methods.
The EAP Re-authentication Protocol (ERP) specifies extensions to EAP
and the EAP keying hierarchy to support an EAP method-independent
protocol for efficient re-authentication between the peer and an EAP
re-authentication server through any authenticator.
Authenticated Anticipatory Keying (AAK) is a method by which
cryptographic keying material may be established upon one or more
candidate attachment points (CAPs) prior to handover. AAK uses the
AAA infrastructure for key transport.
This document specifies the extensions necessary to enable AAK
support in ERP.
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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material or to cite them other than as "work in progress."
This Internet-Draft will expire on August 20, 2012.
Cao, et al. Expires August 20, 2012 [Page 1]
Internet-Draft ERP/AAK February 2012
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1. Standards Language . . . . . . . . . . . . . . . . . . . . 3
2.2. Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. ERP/AAK Description . . . . . . . . . . . . . . . . . . . . . 4
4. ERP/AAK Key Hierarchy . . . . . . . . . . . . . . . . . . . . 7
4.1. Derivation of the pRK and pMSK . . . . . . . . . . . . . . 8
5. Packet and TLV Extension . . . . . . . . . . . . . . . . . . . 9
5.1. EAP-Initiate/Re-auth-Start Packet and TLV Extension . . . 9
5.2. EAP-Initiate/Re-auth Packet and TLV Extension . . . . . . 10
5.3. EAP-Finish/Re-auth packet and TLV extension . . . . . . . 12
5.4. TV and TLV Attributes . . . . . . . . . . . . . . . . . . 14
6. Lower Layer Considerations . . . . . . . . . . . . . . . . . . 15
7. AAA Transport Considerations . . . . . . . . . . . . . . . . . 15
8. Security Considerations . . . . . . . . . . . . . . . . . . . 15
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 16
10. Acknowledgement . . . . . . . . . . . . . . . . . . . . . . . 18
11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 18
11.1. Normative References . . . . . . . . . . . . . . . . . . . 18
11.2. Informative References . . . . . . . . . . . . . . . . . . 18
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1. Introduction
The Extensible Authentication Protocol (EAP) [RFC3748] is a generic
framework supporting multiple types of authentication methods. In
systems where EAP is used for authentication, it is desirable to not
repeat the entire EAP exchange with another authenticator. The EAP
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