MIT licensed by Stefan Saasen
Maintained by [email protected]
This version can be pinned in stack with:jwt-0.7.2@sha256:b5858c05476741b4dc7f9f075bb8c8aca128ed25a9f325d937d370aa3d4910e1,4073

Module documentation for 0.7.2

Haskell JSON Web Token (JWT)

JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties.


JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. The claims in a JWT are encoded as a JavaScript Object Notation (JSON) object that is used as the payload of a JSON Web Signature (JWS) structure or as the plaintext of a JSON Web Encryption (JWE) structure, enabling the claims to be digitally signed or MACed and/or encrypted.

See the Web.JWT module documentation to get started.

Build Status


2016-06-02 0.7.2

  • Add missing Data.ByteString.ExtendedTests (Thanks to nomeata for reporting this).
  • Support GHC 8 by raising the upper bound of base (GHC8 ships with base-4.9) (Thanks to Utku Demir).

2016-04-11 0.7.1

  • Add binarySecret function to enable providing a secret based on a ByteString (fixes #21 - Thanks to Joe Nelson for reporting this).

2016-02-20 0.7.0

  • Update JWT to match RFC 7519. This is a backward compatible change with deprecation warnings added for types and functions to be removed in the future.
    • Add NumericDate as a replacement for IntDate (and numericDate as a replacement for intDate)
    • Add JOSEHeader as a replacement for JWTHeader.
  • Use Stack and LTS 4.0
  • Use cryptonite instead of cryptohash (Thanks to Greg V)
  • Remove Web.Base64 in favour of using memory (Thanks to Greg V)

2015-04-22 0.6.0

  • Execute doctests in addition to the testsuite when using ‘make test’.
  • Export ClaimsMap type alias (fixes #12)
  • Allow base 4.8
  • Lowered required cabal library version (to 1.16) to workaround build issues in a consumer project.
  • Add 7.10.1 to the travis config

2015-01-19 0.5.3

  • Add the missing other-modules field to the .cabal file so that all the tests are present in the source distribution. Thanks to Richard Wallace for reporting this.

2015-01-17 0.5.2

  • Tim McLean pointed out that comparing signatures may be susceptible to a timing attack in the way the signatures were compared (using the default Eq instance). Both Signature and Secret now have an Eq instance that uses a constant time comparison function. Thanks Tim for reporting this.

2015-01-03 0.5.1

  • Fix the encoding of the aud part of the claim. Thanks to Aaron Levin for reporting and implementing the change. In addition to the fix we now also verify the shape fo the generated payload.

2014-12-01 0.5.0

  • Rev. 17 of the JWT Draft changed the audience claim from being an optional String to being either an optional StringOrURIs or an optional list of StringOrURIs. Thanks to Aaron Levin for reporting and implementing the change. This change breaks backwards compatibility (in regard to 0.4.x).

2014-10-15 0.4.2

  • Fix the build problems introduced in 0.4.1 to work with the split network package. Thanks to Richard Wallace for fixing this and to Jeremy Shaw for reporting this at the same time.

2014-09-17 0.4.1

  • Update jwt.cabal to work with the new split network package. Thanks to Jeremy Shaw for reporting this.

2014-08-02 0.4.0

  • Change the upper boundary of base from 4.7 to 4.8 (#5)

2014-06-02 0.3.0

  • Add verify function (thanks to Robert Massaioli) to allow verifying an already decoded JWT token

2014-03-10 0.2.1

  • Add Decoding/Encoding sections
  • Make the examples runnable by doctest
  • Fix hlint warnings
  • Add ‘secondsSinceEpoch’ to extract the seconds from epoch from an IntDate

2014-03-10 0.2.0

  • Export the IntDate and StringOrURI types #5a1137b

2014-03-03 0.1.1

  • Verify that invalid input to the decode* functions fails as expected

2014-03-03 0.1.0

  • Initial release