KARP KMP: Simplified Peer Authentication
draft-chunduri-karp-kmp-router-fingerprints-00

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Working Group                                                U. Chunduri
Internet-Draft                                                   A. Tian
Intended status: Informational                             Ericsson Inc.
Expires: January 31, 2013                                  July 30, 2012

                KARP KMP: Simplified Peer Authentication
             draft-chunduri-karp-kmp-router-fingerprints-00

Abstract

   This document describes the usage of Router Fingerprint
   Authentication (RFA) with public keys.  This can be used as a peer
   authentication method with KARP Key Management Protocol (KMP).  KARP
   KMP automates key negotiation for securing TCP-based pairwise Routing
   Protocols (RPs) like BGP, LDP.  The advantage of RFA is, neither it
   requires out-of-band, mutually agreeable symmetric keys nor a full
   PKI based system (trust anchor or CA certificates) for mutual
   authentication of the peers with KARP KMP deployments.  Usage of
   Router Fingerprints give a significant operational improvement from
   symmetric key based systems and yet provide a secure authentication
   technique.

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 January 31, 2013.

Copyright Notice

   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of

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   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . . . 4
     1.2.  Acronyms  . . . . . . . . . . . . . . . . . . . . . . . . . 4
   2.  Router Fingerprint  . . . . . . . . . . . . . . . . . . . . . . 4
   3.  Usage of Router Fingerprints with KARP KMP  . . . . . . . . . . 5
   4.  Impact on the PAD . . . . . . . . . . . . . . . . . . . . . . . 5
   5.  Publishing Router Fingerprints  . . . . . . . . . . . . . . . . 6
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 6
   7.  Security Considerations . . . . . . . . . . . . . . . . . . . . 6
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 6
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 7
     9.1.  Normative References  . . . . . . . . . . . . . . . . . . . 7
     9.2.  Informative References  . . . . . . . . . . . . . . . . . . 7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . . 8

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1.  Introduction

   A Key Management Protocol (KMP) framework for TCP-based pair wise
   routing protocols (BGP [RFC4271], PCEP [RFC5440], MSDP [RFC3618] and
   LDP [RFC5036]) is detailed in
   [chunduri-karp-using-ikev2-with-tcp-ao].  Usage of IKEv2[RFC5996] as
   the KMP is also described in the same document.  This draft explores
   a simple and secure authentication method, which can be used for KARP
   KMP deployments.

   Currently operators don't often change the manual keys deployed for
   protecting the Routing Protocol (RP) messages because of various
   reasons as noted in Section 2.3 of KARP threat document [I-D.ietf-
   karp-threats-reqs].  One of the KARP WG goals is to define mechanisms
   to support key changes for all RPs which use either Manual Key
   Management (MKM) or KMP with out much operational overhead.

   Apart from Peer's identity verification, authentication and parameter
   negotiation, deployment of KMP can be more useful, when it comes to