JSON Web Token (JWT)
draft-ietf-oauth-json-web-token-12
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OAuth Working Group M. Jones
Internet-Draft Microsoft
Intended status: Standards Track J. Bradley
Expires: April 10, 2014 Ping Identity
N. Sakimura
NRI
October 7, 2013
JSON Web Token (JWT)
draft-ietf-oauth-json-web-token-12
Abstract
JSON Web Token (JWT) is a compact URL-safe means of representing
claims to be transferred between two parties. The claims in a JWT
are encoded as a JavaScript Object Notation (JSON) object that is
used as the payload of a JSON Web Signature (JWS) structure or as the
plaintext of a JSON Web Encryption (JWE) structure, enabling the
claims to be digitally signed or MACed and/or encrypted.
The suggested pronunciation of JWT is the same as the English word
"jot".
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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Internet-Drafts are draft documents valid for a maximum of six months
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 10, 2014.
Copyright Notice
Copyright (c) 2013 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
Jones, et al. Expires April 10, 2014 [Page 1]
Internet-Draft JSON Web Token (JWT) October 2013
(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
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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Notational Conventions . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. JSON Web Token (JWT) Overview . . . . . . . . . . . . . . . . 6
3.1. Example JWT . . . . . . . . . . . . . . . . . . . . . . . 6
4. JWT Claims . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1. Registered Claim Names . . . . . . . . . . . . . . . . . . 8
4.1.1. "iss" (Issuer) Claim . . . . . . . . . . . . . . . . . 8
4.1.2. "sub" (Subject) Claim . . . . . . . . . . . . . . . . 8
4.1.3. "aud" (Audience) Claim . . . . . . . . . . . . . . . . 9
4.1.4. "exp" (Expiration Time) Claim . . . . . . . . . . . . 9
4.1.5. "nbf" (Not Before) Claim . . . . . . . . . . . . . . . 9
4.1.6. "iat" (Issued At) Claim . . . . . . . . . . . . . . . 9
4.1.7. "jti" (JWT ID) Claim . . . . . . . . . . . . . . . . . 9
4.2. Public Claim Names . . . . . . . . . . . . . . . . . . . . 10
4.3. Private Claim Names . . . . . . . . . . . . . . . . . . . 10
5. JWT Header . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1. "typ" (Type) Header Parameter . . . . . . . . . . . . . . 10
5.2. "cty" (Content Type) Header Parameter . . . . . . . . . . 11
5.3. Replicating Claims as Header Parameters . . . . . . . . . 11
6. Plaintext JWTs . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1. Example Plaintext JWT . . . . . . . . . . . . . . . . . . 12
7. Rules for Creating and Validating a JWT . . . . . . . . . . . 12
7.1. String Comparison Rules . . . . . . . . . . . . . . . . . 14
8. Cryptographic Algorithms . . . . . . . . . . . . . . . . . . . 14
9. URI for Declaring that Content is a JWT . . . . . . . . . . . 15
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15
10.1. JSON Web Token Claims Registry . . . . . . . . . . . . . . 15
10.1.1. Registration Template . . . . . . . . . . . . . . . . 16
10.1.2. Initial Registry Contents . . . . . . . . . . . . . . 17
10.2. Sub-Namespace Registration of
urn:ietf:params:oauth:token-type:jwt . . . . . . . . . . . 17
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