JSON Web Key (JWK)
draft-ietf-jose-json-web-key-05

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Document Type Active Internet-Draft (jose WG)
Author Michael Jones 
Last updated 2012-07-30
Replaces draft-jones-json-web-key
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JOSE Working Group                                              M. Jones
Internet-Draft                                                 Microsoft
Intended status: Standards Track                           July 30, 2012
Expires: January 31, 2013

                           JSON Web Key (JWK)
                    draft-ietf-jose-json-web-key-05

Abstract

   A JSON Web Key (JWK) is a JavaScript Object Notation (JSON) data
   structure that represents a public key.  This specification also
   defines a JSON Web Key Set (JWK Set) JSON data structure for
   representing a set of JWKs.  Cryptographic algorithms and identifiers
   for use with this specification are described in the separate JSON
   Web Algorithms (JWA) specification.

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
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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
   publication of this document.  Please review these documents
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as

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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  Notational Conventions . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Example JSON Web Key Set . . . . . . . . . . . . . . . . . . .  4
   4.  JSON Web Key (JWK) Format  . . . . . . . . . . . . . . . . . .  4
     4.1.  "alg" (Algorithm Family) Parameter . . . . . . . . . . . .  5
     4.2.  "use" (Key Use) Parameter  . . . . . . . . . . . . . . . .  5
     4.3.  "kid" (Key ID) Parameter . . . . . . . . . . . . . . . . .  5
   5.  JSON Web Key Set (JWK Set) Format  . . . . . . . . . . . . . .  6
     5.1.  "keys" (JSON Web Key Set) Parameter  . . . . . . . . . . .  6
   6.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  6
     6.1.  JSON Web Key Parameters Registry . . . . . . . . . . . . .  7
       6.1.1.  Registration Template  . . . . . . . . . . . . . . . .  7
       6.1.2.  Initial Registry Contents  . . . . . . . . . . . . . .  7
     6.2.  JSON Web Key Set Parameters Registry . . . . . . . . . . .  8
       6.2.1.  Registration Template  . . . . . . . . . . . . . . . .  8
       6.2.2.  Initial Registry Contents  . . . . . . . . . . . . . .  8
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . .  9
   8.  Open Issues  . . . . . . . . . . . . . . . . . . . . . . . . .  9
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     9.1.  Normative References . . . . . . . . . . . . . . . . . . .  9
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 10
   Appendix A.  Acknowledgements  . . . . . . . . . . . . . . . . . . 10
   Appendix B.  Document History  . . . . . . . . . . . . . . . . . . 10
   Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 12

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1.  Introduction

   A JSON Web Key (JWK) is a JavaScript Object Notation (JSON) [RFC4627]
   data structure that represents a public key.  This specification also
   defines a JSON Web Key Set (JWK Set) JSON data structure for
   representing a set of JWKs.  Cryptographic algorithms and identifiers
   for use with this specification are described in the separate JSON
   Web Algorithms (JWA) [JWA] specification.

   Goals for this specification do not include representing private
   keys, representing symmetric keys, representing certificate chains,
   representing certified keys, and replacing X.509 certificates.

   JWKs and JWK Sets are used in the JSON Web Signature (JWS) [JWS] and
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