Operations Model for Router Keying
RFC 7211
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RFC - Informational
(June 2014; No errata)
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Last updated |
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2015-10-14
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draft-hartman-karp-ops-model
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IETF
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Brian Weis
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Shepherd write-up |
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Show
(last changed 2013-06-24)
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RFC 7211 (Informational)
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Yes
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Adrian Farrel
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No IC
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Internet Engineering Task Force (IETF) S. Hartman
Request for Comments: 7211 Painless Security
Category: Informational D. Zhang
ISSN: 2070-1721 Huawei Technologies Co. Ltd.
June 2014
Operations Model for Router Keying
Abstract
The IETF is engaged in an effort to analyze the security of routing
protocol authentication according to design guidelines discussed in
RFC 6518, "Keying and Authentication for Routing Protocols (KARP)
Design Guidelines". Developing an operational and management model
for routing protocol security that works with all the routing
protocols will be critical to the deployability of these efforts.
This document gives recommendations to operators and implementors
regarding management and operation of router authentication. These
recommendations will also assist protocol designers in understanding
management issues they will face.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7211.
Hartman & Zhang Informational [Page 1]
RFC 7211 Operations Model for Router Keying June 2014
Copyright Notice
Copyright (c) 2014 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
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirements Notation . . . . . . . . . . . . . . . . . . . . 3
3. Breakdown of KARP Configuration . . . . . . . . . . . . . . . 3
3.1. Integrity of the Key Table . . . . . . . . . . . . . . . 5
3.2. Management of Key Table . . . . . . . . . . . . . . . . . 5
3.3. Interactions with Automated Key Management . . . . . . . 6
3.4. Virtual Routing and Forwarding Instances (VRFs) . . . . . 6
4. Credentials and Authorization . . . . . . . . . . . . . . . . 6
4.1. Preshared Keys . . . . . . . . . . . . . . . . . . . . . 8
4.1.1. Sharing Keys and Zones of Trust . . . . . . . . . . . 9
4.1.2. Key Separation and Protocol Design . . . . . . . . . 10
4.2. Asymmetric Keys . . . . . . . . . . . . . . . . . . . . . 10
4.3. Public Key Infrastructure . . . . . . . . . . . . . . . . 11
4.4. The Role of Central Servers . . . . . . . . . . . . . . . 12
5. Grouping Peers Together . . . . . . . . . . . . . . . . . . . 12
6. Administrator Involvement . . . . . . . . . . . . . . . . . . 14
6.1. Enrollment . . . . . . . . . . . . . . . . . . . . . . . 14
6.2. Handling Faults . . . . . . . . . . . . . . . . . . . . . 15
7. Upgrade Considerations . . . . . . . . . . . . . . . . . . . 16
8. Security Considerations . . . . . . . . . . . . . . . . . . . 17
9. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 17
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 17
10.1. Normative References . . . . . . . . . . . . . . . . . . 17
10.2. Informative References . . . . . . . . . . . . . . . . . 18
Hartman & Zhang Informational [Page 2]
RFC 7211 Operations Model for Router Keying June 2014
1. Introduction
The Keying and Authentication of Routing Protocols (KARP) working
group is designing improvements to the cryptographic authentication
of IETF routing protocols. These improvements include enhancing how
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