JSON Web Encryption (JWE)
draft-ietf-jose-json-web-encryption-26
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Michael Jones
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Joe Hildebrand
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2014-04-30
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draft-jones-json-web-encryption
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IETF
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Proposed Standard
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Kathleen Moriarty
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jose-chairs@tools.ietf.org, draft-ietf-jose-json-web-encryption@tools.ietf.org
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JOSE Working Group M. Jones
Internet-Draft Microsoft
Intended status: Standards Track J. Hildebrand
Expires: November 1, 2014 Cisco
April 30, 2014
JSON Web Encryption (JWE)
draft-ietf-jose-json-web-encryption-26
Abstract
JSON Web Encryption (JWE) represents encrypted content using
JavaScript Object Notation (JSON) based data structures.
Cryptographic algorithms and identifiers for use with this
specification are described in the separate JSON Web Algorithms (JWA)
specification and IANA registries defined by that specification.
Related digital signature and MAC capabilities are described in the
separate JSON Web Signature (JWS) 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
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
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 November 1, 2014.
Copyright Notice
Copyright (c) 2014 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
Jones & Hildebrand Expires November 1, 2014 [Page 1]
Internet-Draft JWE April 2014
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 Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Notational Conventions . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. JSON Web Encryption (JWE) Overview . . . . . . . . . . . . . . 8
3.1. Example JWE . . . . . . . . . . . . . . . . . . . . . . . 10
4. JWE Header . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1. Registered Header Parameter Names . . . . . . . . . . . . 12
4.1.1. "alg" (Algorithm) Header Parameter . . . . . . . . . . 12
4.1.2. "enc" (Encryption Algorithm) Header Parameter . . . . 12
4.1.3. "zip" (Compression Algorithm) Header Parameter . . . . 12
4.1.4. "jku" (JWK Set URL) Header Parameter . . . . . . . . . 13
4.1.5. "jwk" (JSON Web Key) Header Parameter . . . . . . . . 13
4.1.6. "kid" (Key ID) Header Parameter . . . . . . . . . . . 13
4.1.7. "x5u" (X.509 URL) Header Parameter . . . . . . . . . . 13
4.1.8. "x5c" (X.509 Certificate Chain) Header Parameter . . . 14
4.1.9. "x5t" (X.509 Certificate SHA-1 Thumbprint) Header
Parameter . . . . . . . . . . . . . . . . . . . . . . 14
4.1.10. "typ" (Type) Header Parameter . . . . . . . . . . . . 14
4.1.11. "cty" (Content Type) Header Parameter . . . . . . . . 14
4.1.12. "crit" (Critical) Header Parameter . . . . . . . . . . 14
4.2. Public Header Parameter Names . . . . . . . . . . . . . . 14
4.3. Private Header Parameter Names . . . . . . . . . . . . . . 15
5. Producing and Consuming JWEs . . . . . . . . . . . . . . . . . 15
5.1. Message Encryption . . . . . . . . . . . . . . . . . . . . 15
5.2. Message Decryption . . . . . . . . . . . . . . . . . . . . 17
5.3. String Comparison Rules . . . . . . . . . . . . . . . . . 20
6. Key Identification . . . . . . . . . . . . . . . . . . . . . . 20
7. Serializations . . . . . . . . . . . . . . . . . . . . . . . . 20
7.1. JWE Compact Serialization . . . . . . . . . . . . . . . . 20
7.2. JWE JSON Serialization . . . . . . . . . . . . . . . . . . 20
8. TLS Requirements . . . . . . . . . . . . . . . . . . . . . . . 23
9. Distinguishing between JWS and JWE Objects . . . . . . . . . . 23
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 24
10.1. JSON Web Signature and Encryption Header Parameters
Registration . . . . . . . . . . . . . . . . . . . . . . . 24
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