JSON Web Encryption (JWE)
draft-ietf-jose-json-web-encryption-16
JOSE Working Group M. Jones
Internet-Draft Microsoft
Intended status: Standards Track E. Rescorla
Expires: March 19, 2014 RTFM
J. Hildebrand
Cisco
September 15, 2013
JSON Web Encryption (JWE)
draft-ietf-jose-json-web-encryption-16
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
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This Internet-Draft will expire on March 19, 2014.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1. Notational Conventions . . . . . . . . . . . . . . . . . . 5
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. JSON Web Encryption (JWE) Overview . . . . . . . . . . . . . . 9
3.1. Example JWE . . . . . . . . . . . . . . . . . . . . . . . 9
4. JWE Header . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1. Registered Header Parameter Names . . . . . . . . . . . . 11
4.1.1. "alg" (Algorithm) Header Parameter . . . . . . . . . . 11
4.1.2. "enc" (Encryption Method) Header Parameter . . . . . . 12
4.1.3. "zip" (Compression Algorithm) Header Parameter . . . . 12
4.1.4. "jku" (JWK Set URL) Header Parameter . . . . . . . . . 12
4.1.5. "jwk" (JSON Web Key) Header Parameter . . . . . . . . 13
4.1.6. "x5u" (X.509 URL) Header Parameter . . . . . . . . . . 13
4.1.7. "x5t" (X.509 Certificate SHA-1 Thumbprint) Header
Parameter . . . . . . . . . . . . . . . . . . . . . . 13
4.1.8. "x5c" (X.509 Certificate Chain) Header Parameter . . . 14
4.1.9. "kid" (Key ID) Header Parameter . . . . . . . . . . . 14
4.1.10. "typ" (Type) Header Parameter . . . . . . . . . . . . 14
4.1.11. "cty" (Content Type) Header Parameter . . . . . . . . 15
4.1.12. "crit" (Critical) Header Parameter . . . . . . . . . . 15
4.2. Public Header Parameter Names . . . . . . . . . . . . . . 16
4.3. Private Header Parameter Names . . . . . . . . . . . . . . 16
5. Producing and Consuming JWEs . . . . . . . . . . . . . . . . . 16
5.1. Message Encryption . . . . . . . . . . . . . . . . . . . . 16
5.2. Message Decryption . . . . . . . . . . . . . . . . . . . . 18
5.3. String Comparison Rules . . . . . . . . . . . . . . . . . 21
6. Key Identification . . . . . . . . . . . . . . . . . . . . . . 21
7. Serializations . . . . . . . . . . . . . . . . . . . . . . . . 21
7.1. JWE Compact Serialization . . . . . . . . . . . . . . . . 21
7.2. JWE JSON Serialization . . . . . . . . . . . . . . . . . . 22
8. Distinguishing Between JWS and JWE Objects . . . . . . . . . . 25
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 25
9.1. JWE Header Parameter Names Registration . . . . . . . . . 25
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