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+# remirepo/fedora spec file for argon2
+#
+# Copyright (c) 2017 Remi Collet
+# License: CC-BY-SA
+# http://creativecommons.org/licenses/by-sa/4.0/
+#
+# Please, preserve the changelog entries
+#
+%global libname      libargon2
+%global gh_commit    1c4fc41f81f358283755eea88d4ecd05e43b7fd3
+%global gh_short     %(c=%{gh_commit}; echo ${c:0:7})
+%global gh_owner     P-H-C
+%global gh_project   phc-winner-argon2
+%global soname       0
+
+%global upstream_version 20161029
+#global upstream_prever  RC1
+
+Name:    argon2
+Version: %{upstream_version}%{?upstream_prever:~%{upstream_prever}}
+Release: 1%{?dist}
+Group:   Applications/System
+Summary: The password-hashing tools
+
+License: Public Domain or ASL 2.0
+URL:     https://github.com/%{gh_owner}/%{gh_project}
+Source0: https://github.com/%{gh_owner}/%{gh_project}/archive/%{gh_commit}/%{gh_project}-%{upstream_version}%{?upstream_prever}-%{gh_short}.tar.gz
+
+Requires: %{libname}%{?_isa} = %{version}-%{release}
+
+
+%description
+Argon2 is a password-hashing function that summarizes the state of the art
+in the design of memory-hard functions and can be used to hash passwords
+for credential storage, key derivation, or other applications.
+
+It has a simple design aimed at the highest memory filling rate and
+effective use of multiple computing units, while still providing defense
+against tradeoff attacks (by exploiting the cache and memory organization
+of the recent processors).
+
+Argon2 has three variants: Argon2i, Argon2d, and Argon2id.
+
+* Argon2d is faster and uses data-depending memory access, which makes it
+  highly resistant against GPU cracking attacks and suitable for applications
+  with no threats from side-channel timing attacks (eg. cryptocurrencies). 
+* Argon2i instead uses data-independent memory access, which is preferred for
+  password hashing and password-based key derivation, but it is slower as it
+  makes more passes over the memory to protect from tradeoff attacks.
+* Argon2id is a hybrid of Argon2i and Argon2d, using a combination of
+  data-depending and data-independent memory accesses, which gives some of
+  Argon2i's resistance to side-channel cache timing attacks and much of
+  Argon2d's resistance to GPU cracking attacks.
+
+
+%package -n %{libname}
+Group:    System Environment/Libraries
+Summary:  The password-hashing library
+
+%description -n %{libname}
+Argon2 is a password-hashing function that summarizes the state of the art
+in the design of memory-hard functions and can be used to hash passwords
+for credential storage, key derivation, or other applications.
+
+
+%package -n %{libname}-devel
+Group:    Development/Libraries
+Summary:  Development files for %{libname}
+Requires: %{libname}%{?_isa} = %{version}-%{release}
+
+%description -n %{libname}-devel
+The %{libname}-devel package contains libraries and header files for
+developing applications that use %{libname}.
+
+
+%prep
+%setup -qn %{gh_project}-%{gh_commit}
+
+if ! grep -q 'soname,%{libname}.so.%{soname}' Makefile; then
+  : soname have changed
+  grep soname Makefile
+  exit 1
+fi
+
+# Fix pkgconfig file
+sed -e 's:lib/@HOST_MULTIARCH@:%{_lib}:;s/@UPSTREAM_VER@/%{version}/' -i %{libname}.pc
+
+# Honours default RPM build options and library path
+sed -e 's:-O3 -Wall:%{optflags}:' \
+    -e '/^LIBRARY_REL/s:lib:%{_lib}:' \
+    -i Makefile
+
+%build
+# parallel build is not supported
+make -j1
+
+
+%install
+make install DESTDIR=%{buildroot}
+
+# Drop static library
+rm %{buildroot}%{_libdir}/%{libname}.a
+
+# Create link to soname, see Makefile for value
+mv %{buildroot}%{_libdir}/%{libname}.so %{buildroot}%{_libdir}/%{libname}.so.%{soname}
+ln -s %{libname}.so.%{soname} %{buildroot}%{_libdir}/%{libname}.so
+
+# pkgconfig file
+install -Dpm 644 %{libname}.pc %{buildroot}%{_libdir}/pkgconfig/%{libname}.pc
+
+# Fix perms
+chmod -x %{buildroot}%{_includedir}/%{name}.h
+
+
+%check
+make test
+
+
+%post   -n %{libname} -p /sbin/ldconfig
+%postun -n %{libname} -p /sbin/ldconfig
+
+
+%files
+%{_bindir}/%{name}
+
+%files -n %{libname}
+%{!?_licensedir:%global license %%doc}
+%license LICENSE
+%{_libdir}/%{libname}.so.%{soname}
+
+%files -n %{libname}-devel
+%doc *md
+%{_includedir}/%{name}.h
+%{_libdir}/%{libname}.so
+%{_libdir}/pkgconfig/%{libname}.pc
+
+
+%changelog
+* Wed Oct 18 2017 Remi Collet <remi@remirepo.net> - 20161029-1
+- initial package