JSON Web Encryption

Short description: IETF standard for encrypted data

JSON Web EncryptionJSON Web Encryption (JWE)

Status| Proposed
Year started| 16 January 2012 (2012-01-16)
First published| 16 January 2012 (2012-01-16)
Latest version| May 2015
Organization| IETF
Authors|

* Michael Jones
* Joe Hildebrand

Domain| Encryption, authentication
Abbreviation| JWE
Website| datatracker.ietf.org/doc/html/rfc7516

JSON Web Encryption (JWE) is an IETF standard providing a standardised syntax for the exchange of encrypted data, based on JSON and Base64.[1] It is defined by RFC 7516. Along with JSON Web Signature (JWS), it is one of the two possible formats of a JWT (JSON Web Token). JWE forms part of the JavaScript Object Signing and Encryption (JOSE) suite of protocols.[2]

## Vulnerabilities

In March 2017, a serious flaw was discovered in many popular implementations of JWE, the invalid curve attack.[3]

One implementation of an early (pre-finalised) version of JWE also suffered from Bleichenbacher’s attack.[4]

## References

1. ↑ Ng, Alex Chi Keung (26 January 2018). Contemporary Identity and Access Management Architectures: Emerging Research and Opportunities. IGI Global. pp. 215. ISBN 978-1-5225-4829-4. https://books.google.com/books?id=ipBFDwAAQBAJ&pg=PA215. "JWE is a means of representing encrypted content using JSON data structures."
2. ↑ Fontana, John (January 21, 2013). "Developers getting JSON-based options for enterprise authentication | ZDNet" (in en). ZDNet. https://www.zdnet.com/article/developers-getting-json-based-options-for-enterprise-authentication/.
3. ↑ Rashid, Fahmida (27 March 2017). "Critical flaw alert! Stop using JSON encryption". InfoWorld. https://www.infoworld.com/article/3184582/security/critical-flaw-alert-stop-using-json-encryption.html.
4. ↑ Jager, Tibor; Schinzel, Sebastian; Somorovsky, Juraj (2012), "Bleichenbacher's Attack Strikes again: Breaking PKCS#1 v1.5 in XML Encryption" (in en), Computer Security – ESORICS 2012 (Springer Berlin Heidelberg): pp. 752–769, doi:10.1007/978-3-642-33167-1_43, ISBN 9783642331664, "Beyond XML Encryption, the recent JSON Web Encryption (JWE) specification prescribes PKCS#1 v1.5 as a mandatory cipher. This specification is under development and at the time of writing there existed only one implementation following this specification. We verified that this implementation was vulnerable to two versions of the Bleichenbacher’s attack: the direct attack based on error messages and the timing-based attack."

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