jose: Javascript Object Signing and Encryption and JSON Web Token library

[ apache, cryptography, library ] [ Propose Tags ]

An implementation of the Javascript Object Signing and Encryption (JOSE) and JSON Web Token (JWT; RFC 7519) formats.

The JSON Web Signature (JWS; RFC 7515) implementation is complete.

EdDSA signatures (RFC 8037) are supported (Ed25519 only).

JWK Thumbprint (RFC 7638) is supported (requires aeson >= 0.10).

JSON Web Encryption (JWE; RFC 7516) is not yet implemented.

The ECDSA implementation is vulnerable to timing attacks and should only be used for verification.

Versions [faq]	0.1.26.0, 0.1.27.0, 0.2.31.0, 0.2.33.0, 0.2.38.0, 0.2.38.1, 0.3.38.0, 0.3.41.0, 0.3.41.1, 0.3.41.2, 0.4.0.0, 0.4.0.1, 0.4.0.2, 0.4.0.3, 0.4.0.4, 0.5.0.0, 0.5.0.1, 0.5.0.2, 0.5.0.3, 0.5.0.4, 0.5.0.5, 0.6.0.0, 0.6.0.1, 0.6.0.2, 0.6.0.3, 0.7.0.0, 0.8.0.0, 0.8.1.0, 0.8.2.0, 0.8.2.1, 0.8.3, 0.8.3.1, 0.8.4
Dependencies	aeson (>=0.8.0.1), attoparsec, base (>=4.8 && <5), base64-bytestring (>=1.1 && <1.3), bytestring (==0.10.), concise (>=0.1), containers (>=0.5), cryptonite (>=0.7), fail, jose, lens (>=4.16), memory (>=0.7), monad-time (>=0.1), mtl (>=2), network-uri (>=2.6), QuickCheck (>=2), quickcheck-instances, safe (>=0.3), semigroups (>=0.15), template-haskell (>=2.4), text (>=1.1), time (>=1.5), unix, unordered-containers (==0.2.), vector, x509 (>=1.4) [details]
License	Apache-2.0
Copyright	Copyright (C) 2013-2018 Fraser Tweedale
Author	Fraser Tweedale
Maintainer	frase@frase.id.au
Category	Cryptography
Home page	https://github.com/frasertweedale/hs-jose
Bug tracker	https://github.com/frasertweedale/hs-jose/issues
Source repo	head: git clone https://github.com/frasertweedale/hs-jose.git
Uploaded	by frasertweedale at 2020-09-29T13:59:02Z
Distributions	Arch:0.8.4, LTSHaskell:0.8.0.0, NixOS:0.8.4, Stackage:0.8.0.0
Executables	jose-example
Downloads	22962 total (279 in the last 30 days)
Rating	1.25 (votes: 1) [estimated by Bayesian average]
Your Rating	λ λ λ
Status	Docs available [build log] Last success reported on 2020-09-29 [all 1 reports]

Modules

[Index] [Quick Jump]

Crypto
- Crypto.JOSE
- Crypto.JWT

Flags

Name	Description	Default	Type
demos	Build demonstration programs	Disabled	Automatic

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

jose-0.8.4.tar.gz [browse] (Cabal source package)
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Readme for jose-0.8.4

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jose - Javascript Object Signing and Encryption & JWT (JSON Web Token)

jose is a Haskell implementation of Javascript Object Signing and Encryption and JSON Web Token.

The JSON Web Signature (JWS; RFC 7515) implementation is complete. JSON Web Encryption (JWE; RFC 7516) is not yet implemented.

EdDSA signatures (RFC 8037) are supported (Ed25519 only).

JWK Thumbprint (RFC 7638) is supported (requires aeson >= 0.10).

Contributions are welcome.

Security

If you discover a security issue in this library, please email me the details, ideally with a proof of concept (frase @ frase.id.au ; PGP key).

Before reporting an issue, please note the following known vulnerabilities:

The ECDSA implementation is vulnerable to timing attacks and should therefore only be used for verification.

and the following known not-vulnerabilities:

The library is not vulnerable to [JWS algorithm substitution attacks]( https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries/). Haskell's type system excludes this attack.
The default JWS validation settings reject the "none" algorithm, as [required by RFC 7518]( https://tools.ietf.org/html/rfc7518#section-3.6).
The library is not vulnerable to ECDH [invalid curve attacks]( https://blogs.adobe.com/security/2017/03/critical-vulnerability-uncovered-in-json-encryption.html) because JWE is not implemented.

Interoperability issues

The following known interoperability issues will not be addressed, so please do not open issues:

Some JOSE tools and libraries permit the use of short keys, in violation of the RFCs. This implementation rejects JWS or JWT objects minted with short keys, as required by the RFCs.
The Auth0 software produces objects with an [invalid "x5t" parameter]( https://community.auth0.com/questions/7227/certificate-thumbprint-is-longer-than-20-bytes). The datum [should be a base64url-encoded SHA-1 digest]( https://tools.ietf.org/html/rfc7515#section-4.1.7), but Auth0 produces a base64url-encoded hex-encoded SHA-1 digest. The object can be repaired (example) so that this library will admit it, unless the offending parameter is part of the JWS Protected Header in which case you are out of luck (until Auth0 bring their implementation into compliance).
JWKs with leading null bytes in the RSA "n" parameter (a violation of RFC 7518) have been seen in the wild. This library rejects nonconformant JWKs. If you know which programs/libraries produce such objects, please file bugs against them. It is straightforward to repair these keys: base64url-decode the offending parameter, drop the leading null byte, base64url-encode again then update the JSON object.

Contributing

Bug reports, patches, feature requests, code review, crypto review, examples and documentation are welcome.

If you are wondering about how or whether to implement some feature or fix, please open an issue where it can be discussed. I appreciate your efforts, but I do not wish such efforts to be misplaced.

To submit a patch, please use git send-email or open a pull request. Write a [well formed commit message]( http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html). If your patch is nontrivial, update the copyright notice at the top of the modified files.