Concise Identities
draft-birkholz-core-coid-02

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Last updated 2019-07-05
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CoRE Working Group                                           H. Birkholz
Internet-Draft                                            Fraunhofer SIT
Intended status: Informational                                C. Bormann
Expires: January 7, 2020                         Universitaet Bremen TZI
                                                             M. Pritikin
                                                                   Cisco
                                                            R. Moskowitz
                                                                  Huawei
                                                           July 06, 2019

                           Concise Identities
                      draft-birkholz-core-coid-02

Abstract

   There is an increased demand of trustworthy claim sets -- a set of
   system entity characteristics tied to an entity via signatures -- in
   order to provide information.  Claim sets represented via CBOR Web
   Tokens (CWT) can compose a variety of evidence suitable for
   constrained-node networks and to support secure device automation.
   This document focuses on sets of identifiers and attributes that are
   tied to a system entity and are typically used to compose identities
   appropriate for Constrained RESTful Environment (CoRE) authentication
   needs.

Status of This Memo

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Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Birkholz, et al.         Expires January 7, 2020                [Page 1]
Internet-Draft                    CoID                         July 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
     1.2.  Requirements Language . . . . . . . . . . . . . . . . . .   4
   2.  Claims in a Concise Identity  . . . . . . . . . . . . . . . .   5
     2.1.  iss: CWT issuer . . . . . . . . . . . . . . . . . . . . .   5
     2.2.  sub: CWT subject  . . . . . . . . . . . . . . . . . . . .   5
     2.3.  aud: CWT audience . . . . . . . . . . . . . . . . . . . .   5
     2.4.  exp: CWT expiration time  . . . . . . . . . . . . . . . .   5
     2.5.  nbf: CWT start of validity  . . . . . . . . . . . . . . .   6
     2.6.  iat: CWT time of issue  . . . . . . . . . . . . . . . . .   6
     2.7.  cti: CWT ID . . . . . . . . . . . . . . . . . . . . . . .   6
     2.8.  cnf: CWT proof-of-possession key claim  . . . . . . . . .   6
   3.  The Essential Qualities of the Subject Claim  . . . . . . . .   6
   4.  Signature Envelope  . . . . . . . . . . . . . . . . . . . . .   7
   5.  Processing Rules  . . . . . . . . . . . . . . . . . . . . . .   7
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   9
   Appendix A.  Common Terminology on Identity Documents . . . . . .  10
     A.1.  Terms Specified in IEEE 802.1AR . . . . . . . . . . . . .  10
     A.2.  Terms Specified in RFC 4949 . . . . . . . . . . . . . . .  10
     A.3.  Terms specified in ISO/IEC 9594-8:2017  . . . . . . . . .  11
   Appendix B.  Concise Identities and Trust Relationships . . . . .  11
   Appendix C.  Concise Identity (CoID) CDDL Data Definition based
                on RFC 5280  . . . . . . . . . . . . . . . . . . . .  12
   Appendix D.  Concise Secure Device Identifier (CoDeID) based on
                IEEE 802.1AR-2018  . . . . . . . . . . . . . . . . .  12
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