#
# spec file for package ghc-cryptohash-sha256
#
# Copyright (c) 2020 SUSE LLC
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
# upon. The license for this file, and modifications and additions to the
# file, is the same license as for the pristine package itself (unless the
# license for the pristine package is not an Open Source License, in which
# case the license is the MIT License). An "Open Source License" is a
# license that conforms to the Open Source Definition (Version 1.9)
# published by the Open Source Initiative.
# Please submit bugfixes or comments via https://bugs.opensuse.org/
#
%global pkg_name cryptohash-sha256
%bcond_with tests
Name: ghc-%{pkg_name}
Version: 0.11.101.0
Release: 0
Summary: Fast, pure and practical SHA-256 implementation
License: BSD-3-Clause
URL: https://hackage.haskell.org/package/%{pkg_name}
Source0: https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
Source1: https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/4.cabal#/%{pkg_name}.cabal
BuildRequires: ghc-Cabal-devel
BuildRequires: ghc-bytestring-devel
BuildRequires: ghc-rpm-macros
%if %{with tests}
BuildRequires: ghc-SHA-devel
BuildRequires: ghc-base16-bytestring-devel
BuildRequires: ghc-tasty-devel
BuildRequires: ghc-tasty-hunit-devel
BuildRequires: ghc-tasty-quickcheck-devel
%endif
%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..
=== Packages in the 'cryptohash-*' family
- <https://hackage.haskell.org/package/cryptohash-md5 cryptohash-md5> -
<https://hackage.haskell.org/package/cryptohash-sha1 cryptohash-sha1> -
<https://hackage.haskell.org/package/cryptohash-sha256 cryptohash-sha256> -
<https://hackage.haskell.org/package/cryptohash-sha512 cryptohash-sha512>
=== 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/).
%package devel
Summary: Haskell %{pkg_name} library development files
Requires: %{name} = %{version}-%{release}
Requires: ghc-compiler = %{ghc_version}
Requires(post): ghc-compiler = %{ghc_version}
Requires(postun): ghc-compiler = %{ghc_version}
%description devel
This package provides the Haskell %{pkg_name} library development
files.
%prep
%setup -q -n %{pkg_name}-%{version}
cp -p %{SOURCE1} %{pkg_name}.cabal
%build
%ghc_lib_build
%install
%ghc_lib_install
%check
%cabal_test
%post devel
%ghc_pkg_recache
%postun devel
%ghc_pkg_recache
%files -f %{name}.files
%license LICENSE
%files devel -f %{name}-devel.files
%doc changelog.md
%changelog