Network Working Group R. Gagliano
Internet-Draft LACNIC
Intended status: Standards Track S. Krishnan
Expires: May 14, 2010 Ericsson
A. Kukec
University of Zagreb
November 10, 2009
SEND Name Type field Registry
draft-rgaglian-csi-send-name-type-registry-01
Abstract
SEcure Neighbor Discovery (SEND) defines the Name Type field in the
Trust Anchor option. This document requesto to IANA the creation and
management of a registry for this field. This document also
specifies a new Name Type field based on a certificate Subject Key
Identifier (SKI).
Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet-
Drafts.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt.
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html.
This Internet-Draft will expire on May 14, 2010.
Copyright Notice
Copyright (c) 2009 IETF Trust and the persons identified as the
document authors. All rights reserved.
Gagliano, et al. Expires May 14, 2010 [Page 1]
Internet-Draft SEND Name Type Registry November 2009
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 BSD License.
This document may contain material from IETF Documents or IETF
Contributions published or made publicly available before November
10, 2008. The person(s) controlling the copyright in some of this
material may not have granted the IETF Trust the right to allow
modifications of such material outside the IETF Standards Process.
Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
outside the IETF Standards Process, and derivative works of it may
not be created outside the IETF Standards Process, except to format
it for publication as an RFC or to translate it into languages other
than English.
Gagliano, et al. Expires May 14, 2010 [Page 2]
Internet-Draft SEND Name Type Registry November 2009
Table of Contents
1. Requirements notation . . . . . . . . . . . . . . . . . . . . . 3
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. SEND SKI trust anchor Name Type field. . . . . . . . . . . . . 5
3.1. Processing Rules for Router . . . . . . . . . . . . . . . . 5
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 6
5. Security Considerations . . . . . . . . . . . . . . . . . . . . 7
6. Normative References . . . . . . . . . . . . . . . . . . . . . 8
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 9
Gagliano, et al. Expires May 14, 2010 [Page 3]
Internet-Draft SEND Name Type Registry November 2009
1. Requirements notation
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
Gagliano, et al. Expires May 14, 2010 [Page 4]
Internet-Draft SEND Name Type Registry November 2009
2. Introduction
SEcure Neighbor Discovery [RFC3971] (SEND) utilizes X.509v3
certificates that include [RFC3779] extension for IPv6 addresses to
certify a router authority over an IPv6 prefix for NDP (Neighbor
Discovery Protocol). The Trust Anchor Option in section 6.4.3 of RFC
3971 allows the identification of the Trust Anchor (TA) selected by
the host. In that section, two name types were defined, the DER
Encoded X.501 Name and a Fully Qualified Domain Name (FQDN). This
document requesto to IANA the creation and management of a registry
for this field.
In any Public Key Infrastructure, the subject name of a certificate
is only unique within each CA. A new option to identify TAs across
CAs is needed.
In [I-D.ietf-csi-send-cert] the certificate profile described in
[I-D.ietf-sidr-res-certs] is adopted for SEND. In these documents,
the Subject field the certificates are declared to be meaningless and
the subjectAltName field is not allowed. On the other hand, the
Subject Key Identifier (SKI) extension for the X.509 certificates is
defined as mandatory and non-critical.
This document specifies a new Name Type field in the SEND TA option
that allows to use of the SKI X.509 extension to identify TA X.509
certificates.
Gagliano, et al. Expires May 14, 2010 [Page 5]
Internet-Draft SEND Name Type Registry November 2009
3. SEND SKI trust anchor Name Type field.
Name Type
3 SHA-1 Subject Key Identifier (SKI)
The Key Identifier used here is the 160-bit SHA-1 hash of the value
of the DER-encoded ASN.1 bit string of the subject public key, as
described in Section 4.2.1.2 of [RFC5280].
3.1. Processing Rules for Router
As described in RFC 3971, a TA is identified by the SEND TA option.
If the TA option is represented as a SHA-1 SKI, then the SKI must be
equal to the SKI in the anchor's certificate calculated as described
in [draft-ietf-sidr-res-certs-17]. The router SHOULD include the TA
option(s) in the advertisement for which the certification path was
found.
If the router is unable to find a path to the requested anchor, it
SHOULD send an advertisement without any certificate. In this case,
the router SHOULD include the TA options that were solicited.
Gagliano, et al. Expires May 14, 2010 [Page 6]
Internet-Draft SEND Name Type Registry November 2009
4. IANA Considerations
IANA will maintains the registry of Name Type field in the ICMP Trust
Anchor option. The registry records Name Type fields for the ICMP
Trust Anchor option (15) defined in the RFC 3971.
The following Name Type fields are defined:
1 DER Encoded X.501 Name (RFC 3971).
2 FQDN (RFC 3971)
3 SHA-1 Subject Key Identifier (SKI) (Section 3)
New assignments of Name Type field is through Standards Action.
Gagliano, et al. Expires May 14, 2010 [Page 7]
Internet-Draft SEND Name Type Registry November 2009
5. Security Considerations
No security considerations.
Gagliano, et al. Expires May 14, 2010 [Page 8]
Internet-Draft SEND Name Type Registry November 2009
6. Normative References
[I-D.ietf-csi-send-cert]
Krishnan, S., Kukec, A., and R. Gagliano, "Certificate
profile and certificate management for SEND",
draft-ietf-csi-send-cert-00 (work in progress), July 2009.
[I-D.ietf-sidr-res-certs]
Huston, G., Michaelson, G., and R. Loomans, "A Profile for
X.509 PKIX Resource Certificates",
draft-ietf-sidr-res-certs-17 (work in progress),
September 2009.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC3779] Lynn, C., Kent, S., and K. Seo, "X.509 Extensions for IP
Addresses and AS Identifiers", RFC 3779, June 2004.
[RFC3971] Arkko, J., Kempf, J., Zill, B., and P. Nikander, "SEcure
Neighbor Discovery (SEND)", RFC 3971, March 2005.
[RFC5280] Cooper, D., Santesson, S., Farrell, S., Boeyen, S.,
Housley, R., and W. Polk, "Internet X.509 Public Key
Infrastructure Certificate and Certificate Revocation List
(CRL) Profile", RFC 5280, May 2008.
Gagliano, et al. Expires May 14, 2010 [Page 9]
Internet-Draft SEND Name Type Registry November 2009
Authors' Addresses
Roque Gagliano
LACNIC
Rambla Rep Mexico 6125
Montevideo, 11400
Uruguay
Email: roque@lacnic.net
Suresh Krishnan
Ericsson
8400 Decarie Blvd.
Town of Mount Royal, QC
Canada
Phone: +1 514 345 7900 x42871
Email: suresh.krishnan@ericsson.com
Ana Kukec
University of Zagreb
Unska 3
Zagreb
Croatia
Email: ana.kukec@fer.hr
Gagliano, et al. Expires May 14, 2010 [Page 10]