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Versions: 00 draft-lear-ietf-netmod-mud

pkix                                                             E. Lear
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                       February 02, 2016
Expires: August 5, 2016


       An X.509 Extension for Manufacturer Usage Description URI
                 draft-lear-ietf-pkix-mud-extension-00

Abstract

   Manufacturer User Descriptions are used by device manufacturers to
   provide indications to the network as to the intended use of a
   particular device and with what end points it might communicate.  A
   URI points to those descriptions.  This memo specifies an X.509
   certificate extension to specify that URI in a device certificate to
   be used with IEEE 802.1AR.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at http://datatracker.ietf.org/drafts/current/.

   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."

   This Internet-Draft will expire on August 5, 2016.

Copyright Notice

   Copyright (c) 2016 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




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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  The Manufacturer Usage Description (MUD) URI Extension  . . .   2
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
   5.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   3
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   3
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   3
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   4
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   4

1.  Introduction

   [I-D.lear-mud-framework] introduces the concept of manufacturer usage
   description.  In other documents, DHCP is used to identify a URI that
   network systems can use to retrieve YANG-based XML that advises the
   network on appropriate usage of a device.

   Use of DHCP as a means of transmission may not be appropriate for all
   use cases, particularly for devices intended for use in critical
   environments.  The IEEE has developed [IEEE8021AR] that provides a
   certificate-based approach to communicate device characteristics,
   which itself relies on [RFC5280].

   This document specifies an X.509 extension so that such MUD URI may
   be communicated via 802.1AR.  The MUD URI extension is non-critical,
   as required by IEEE 802.1AR.

2.  The Manufacturer Usage Description (MUD) URI Extension

   [RFC7299] provides a procedure and means to specify extensions to
   X.509 certificates.  The object identifier (OID) for extensions is as
   follows:

   - PKIX certificate extensions id-pe OBJECT IDENTIFIER ::= { id-pkix 1
   }

   The choice of id-pe is based on guidance found in Section 4.2.2 of
   [RFC5280]:

      These extensions may be used to direct applications to on-line
      information about the issuer or the subject.





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   The MUD URI is precisely that: online information about the
   particular subject.

   The new extension is identified as follows:

   - The MUD URI extension id-pe-mud-uri OBJECT IDENTIFER ::= { id-pe
   TBD }

   The extension returns a single value:

   mud-uri ::= uniformResourceIdentifier - for use with mud
   architecture.

   The semantics of the URI are defined [I-D.lear-ietf-netmod-mud].

3.  Security Considerations

   This document specifies a certificate extension to communicate a
   Manufacturer Usage Description URI.  The semantics of the URI are
   defined in draft-lear-ietf-netmod-mud.  At this time, no security
   concerns are visible to the author for inclusion of such an
   extension.

4.  IANA Considerations

   The IANA is requested to assign a value for id-pe-mud-uri in the "SMI
   Security for PKIX Certificate Extension" Registry.

5.  Acknowledgments

   The author wishes to thank Max Pritikin for his review and
   suggestions.

6.  References

6.1.  Normative References

   [I-D.lear-ietf-netmod-mud]
              Lear, E., "Manufacturer Usage Description YANG Model",
              draft-lear-ietf-netmod-mud-00 (work in progress), January
              2016.

   [RFC7299]  Housley, R., "Object Identifier Registry for the PKIX
              Working Group", RFC 7299, DOI 10.17487/RFC7299, July 2014,
              <http://www.rfc-editor.org/info/rfc7299>.






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6.2.  Informative References

   [I-D.lear-mud-framework]
              Lear, E., "Manufacturer Usage Description Framework",
              draft-lear-mud-framework-00 (work in progress), January
              2016.

   [IEEE8021AR]
              Institute for Electrical and Electronics Engineers,
              "Secure Device Identity", 1998.

   [IEEE8021X]
              Institute for Electrical and Electronics Engineers, "Port
              Based Network Access Control", 1998.

   [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, DOI 10.17487/RFC5280, May 2008,
              <http://www.rfc-editor.org/info/rfc5280>.

Author's Address

   Eliot Lear
   Cisco Systems
   Richtistrasse 7
   Wallisellen  CH-8304
   Switzerland

   Phone: +41 44 878 9200
   Email: lear@cisco.com




















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