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

[ apache, cryptography, library, program ] [ Propose Tags ]

An implementation of the Javascript Object Signing and Encryption (JOSE) and JSON Web Token (JWT; RFC 5717) formats.

The JSON Web Signature (JWS; RFC 5715) implementation is complete. JSON Web Encryption (JWE; RFC 5716) is not yet implemented.

All JWS algorithms (HMAC, ECDSA, RSASSA-PKCS-v1_5 and RSASSA-PSS) are implemented, however, the ECDSA implementation is is vulnerable to timing attacks and should therefore only be used for JWS verification.

The Crypto.JOSE.Legacy module is provided for working with the Mozilla Persona (formerly BrowserID) key format. Only RSA keys are supported - DSA keys cannot be used and must be handled as opaque objects.

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Dependencies aeson (>=, attoparsec, base (==4.*), base64-bytestring (==1.0.*), bifunctors (>=4.0), byteable (==0.1.*), bytestring (==0.10.*), cryptonite (>=0.7), data-default-class, lens (>=4.3), memory (>=0.7), 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), unordered-containers (==0.2.*), vector, x509 (>=1.4) [details]
License Apache-2.0
Copyright Copyright (C) 2013, 2014, 2015, 2016 Fraser Tweedale
Author Fraser Tweedale
Category Cryptography
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Source repo head: git clone
Uploaded by frasertweedale at Mon Mar 28 07:14:04 UTC 2016
Distributions Arch:, LTSHaskell:, NixOS:, Stackage:
Downloads 11272 total (399 in the last 30 days)
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Status Hackage Matrix CI
Docs not available [build log]
All reported builds failed as of 2016-11-27 [all 2 reports]


  • Crypto
    • Crypto.JOSE
      • Crypto.JOSE.Compact
      • Crypto.JOSE.Error
      • Crypto.JOSE.JWE
      • Crypto.JOSE.JWK
      • Crypto.JOSE.JWS
      • Crypto.JOSE.Legacy
      • Crypto.JOSE.Types
    • Crypto.JWT


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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.

Encryption (JWE) is not supported but signing is supported. All key types and algorithms are supported, however, EC signing is currently vulnerable to timing attacks therefore its use is strongly discouraged (EC validation is safe).

Contributions are welcome.