File cryptohash-sha256.cabal of Package ghc-cryptohash-sha256

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File cryptohash-sha256.cabal of Package ghc-cryptohash-sha256 (Revision 8a1d8d6491c687add5a0826485df6d48)

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cabal-version:       2.0
name:                cryptohash-sha256
version:             0.11.102.0
x-revision: 1

synopsis:            Fast, pure and practical SHA-256 implementation
description: {

A practical incremental and one-pass, pure API to
the [SHA-256 cryptographic hash algorithm](https://en.wikipedia.org/wiki/SHA-2) according
to [FIPS 180-4](http://dx.doi.org/10.6028/NIST.FIPS.180-4)
with performance close to the fastest implementations available in other languages.
.
The core SHA-256 algorithm is implemented in C and is thus expected
to be as fast as the standard [sha256sum(1) tool](https://linux.die.net/man/1/sha256sum);
for instance, on an /Intel Core i7-3770/ at 3.40GHz this implementation can
compute a SHA-256 hash over 230 MiB of data in under one second.
(If, instead, you require a pure Haskell implementation and performance is secondary, please refer to the [SHA package](https://hackage.haskell.org/package/SHA).)
.

.
Additionally, this package provides support for
.
- HMAC-SHA-256: SHA-256-based [Hashed Message Authentication Codes](https://en.wikipedia.org/wiki/HMAC) (HMAC)
- HKDF-SHA-256: [HMAC-SHA-256-based Key Derivation Function](https://en.wikipedia.org/wiki/HKDF) (HKDF)
.
conforming to [RFC6234](https://tools.ietf.org/html/rfc6234), [RFC4231](https://tools.ietf.org/html/rfc4231), [RFC5869](https://tools.ietf.org/html/rfc5869), et al..
.
=== Relationship to the @cryptohash@ package and its API
.
This package has been originally a fork of @cryptohash-0.11.7@ because the @cryptohash@
package had been deprecated and so this package continues to satisfy the need for a
lightweight package providing the SHA-256 hash algorithm without any dependencies on packages
other than @base@ and @bytestring@. The API exposed by @cryptohash-sha256-0.11.*@'s
"Crypto.Hash.SHA256" module is guaranteed to remain a compatible superset of the API provided
by the @cryptohash-0.11.7@'s module of the same name.
.
Consequently, this package is designed to be used as a drop-in replacement for @cryptohash-0.11.7@'s
"Crypto.Hash.SHA256" module, though with
a [clearly smaller footprint by almost 3 orders of magnitude](https://www.reddit.com/r/haskell/comments/5lxv75/psa_please_use_unique_module_names_when_uploading/dbzegx3/).

}

license:             BSD3
license-file:        LICENSE
copyright:           Vincent Hanquez, Herbert Valerio Riedel
maintainer:          Herbert Valerio Riedel <hvr@gnu.org>
homepage:            https://github.com/hvr/cryptohash-sha256
bug-reports:         https://github.com/hvr/cryptohash-sha256/issues
category:            Data, Cryptography
build-type:          Simple
tested-with:         GHC == 7.4.2
                   , GHC == 7.6.3
                   , GHC == 7.8.4
                   , GHC == 7.10.3
                   , GHC == 8.0.2
                   , GHC == 8.2.2
                   , GHC == 8.4.4
                   , GHC == 8.6.5
                   , GHC == 8.8.3
                   , GHC == 8.10.1

extra-source-files:  cbits/hs_sha256.h
                     changelog.md

source-repository head
  type:     git
  location: https://github.com/hvr/cryptohash-sha256.git

flag exe
  description: Enable building @sha256sum@ executable
  manual:   True
  default:  False

flag use-cbits
  description: Use fast optimized C routines via FFI; if flag is disabled falls back to non-FFI Haskell optimized implementation.
  manual:   True
  default:  True

library
  default-language:  Haskell2010

ghc-options:       -Wall

build-depends:     base              >= 4.5 && < 4.16

exposed-modules:   Crypto.Hash.SHA256

if flag(use-cbits)
    build-depends:     bytestring      ^>= 0.9.2 || ^>= 0.10.0 || ^>= 0.11.0

other-extensions:  BangPatterns
                       CApiFFI
                       CPP
                       Trustworthy
                       Unsafe

hs-source-dirs:    src
    other-modules:     Crypto.Hash.SHA256.FFI
                       Compat
    include-dirs:      cbits
  else
    hs-source-dirs:    src-pure
    build-depends:     cryptohash-sha256-pure ^>= 0.1.0

executable sha256sum
  default-language:  Haskell2010
  hs-source-dirs:    src-exe
  main-is:           sha256sum.hs
  ghc-options:       -Wall -threaded
  if flag(exe)
    other-extensions:  RecordWildCards
    build-depends:     cryptohash-sha256
                     , base
                     , bytestring

, base16-bytestring ^>= 0.1.1 || ^>= 1.0.0
  else
    buildable:       False

test-suite test-sha256
  default-language:  Haskell2010
  other-extensions:  OverloadedStrings
  type:              exitcode-stdio-1.0
  hs-source-dirs:    src-tests
  main-is:           test-sha256.hs
  ghc-options:       -Wall -threaded
  build-depends:     cryptohash-sha256
                   , base
                   , bytestring

, base16-bytestring ^>= 0.1.1 || ^>= 1.0.0
                   , SHA               ^>= 1.6.4
                   , tasty             ^>= 1.1
                   , tasty-quickcheck  ^>= 0.10
                   , tasty-hunit       ^>= 0.10

benchmark bench-sha256
  default-language:  Haskell2010
  other-extensions:  BangPatterns
  type:              exitcode-stdio-1.0
  main-is:           bench-sha256.hs
  hs-source-dirs:    src-bench
  build-depends:     cryptohash-sha256
                   , cryptohash-sha256-pure ^>= 0.1.0
                   , SHA               ^>= 1.6.4
                   , base
                   , bytestring
                   , criterion         ^>= 1.5

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