https://github.com/jberryman/hashabler

A haskell library for principled, cross-platform & extensible hashing of types, including an implementation of the FNV-1a algorithm.
https://github.com/jberryman/hashabler

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A haskell library for principled, cross-platform & extensible hashing of types, including an implementation of the FNV-1a algorithm.

• Host: GitHub
• URL: https://github.com/jberryman/hashabler
• Owner: jberryman
• License: bsd-3-clause
• Created: 2015-04-30T15:15:34.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2017-01-10T04:21:33.000Z (almost 8 years ago)
• Last Synced: 2024-04-26T00:30:53.363Z (8 months ago)
• Language: Haskell
• Size: 6.56 MB
• Stars: 22
• Watchers: 4
• Forks: 4
• Open Issues: 6
• Metadata Files:
  • Readme: README.markdown
  • Changelog: CHANGELOG.markdown
  • License: LICENSE

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README

        
# Hashabler [![Build Status](https://travis-ci.org/jberryman/hashabler.svg)](https://travis-ci.org/jberryman/hashabler) 

This is a haskell library for principled, cross-platform & extensible hashing

of data and types, which includes an implementation of the FNV-1a and SipHash

algorithms. It is a rewrite of the

[hashable](http://hackage.haskell.org/package/hashable) library by Milan Straka

and Johan Tibell, having the following goals:

- Extensibility; it should be easy to implement a new hashing algorithm on any

  Hashable type, for instance if one needed more hash bits

- Honest hashing of values, and principled hashing of algebraic data types (see

  e.g. hashable issues 30)

- Cross-platform consistent hash values, with a versioning guarantee. Where

  possible we ensure morally identical data hashes to indentical values

  regardless of processor word size and endianness.

- Make implementing identical hash routines in other languages as painless as

  possible. We provide an implementation of a simple hashing algorithm (FNV-1a)

  and make an effort define Hashable instances in a way that is well-documented

  and sensible, so that e.g. one can (hopefully) easily implement string

  hashing routine in JavaScript that will match the way we hash strings here.

It is available [on hackage](http://hackage.haskell.org/package/hashabler), and

can be installed with:

    cabal install hashabler

**Versioning**: Except for instances where we specifically note that we make no

promise of consistency, changes to hash values (and consequently changes to

`StableHashable` values, where applicable) entail a major version number bump.