cryptohash-sha1

Fast, pure and practical SHA-1 implementation

https://github.com/hvr/cryptohash-sha1

Version on this page:0.11.100.1@rev:2
LTS Haskell 23.19:0.11.101.0@rev:6
Stackage Nightly 2025-04-30:0.11.101.0@rev:6
Latest on Hackage:0.11.101.0@rev:6

See all snapshots cryptohash-sha1 appears in

BSD-3-Clause licensed
Maintained by Herbert Valerio Riedel
This version can be pinned in stack with:cryptohash-sha1-0.11.100.1@sha256:75304c17ee9ec7d86ec24636fddddf9885fde38ac5946924fdcdad8497055a75,2966

Module documentation for 0.11.100.1

Depends on 2 packages(full list with versions):
base, bytestring
Used by 1 package in lts-11.22(full list with versions):
uuid

A practical incremental and one-pass, pure API to the SHA-1 hash algorithm (including HMAC support) with performance close to the fastest implementations available in other languages.

The implementation is made in C with a haskell FFI wrapper that hides the C implementation.

NOTE: This package has been forked off cryptohash-0.11.7 because the cryptohash package has been deprecated and so this package continues to satisfy the need for a lightweight package providing the SHA1 hash algorithm without any dependencies on packages other than base and bytestring.

Consequently, this package can be used as a drop-in replacement for cryptohash's Crypto.Hash.SHA1 module, though with a clearly smaller footprint.

Changes

0.11.100.1

  • Use __builtin_bswap{32,64} only with GCC >= 4.3

0.11.100.0

  • new hmac and hmaclazy functions providing HMAC-SHA1 computation conforming to RFC2104 and RFC2202

0.11.7.2

  • switch to ‘safe’ FFI for calls where overhead becomes neglible
  • removed inline assembly in favour of portable C constructs
  • fix 32bit length overflow bug in hash function
  • fix inaccurate context-size
  • add context-size verification to incremental API operations
  • fix unaligned memory-accesses

0.11.7.1

  • first version forked off cryptohash-0.11.7 release