diff --git a/README.md b/README.md
index be2f25b..3314268 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,7 @@
 # perl-Digest-HMAC
 
+HMAC is used for message integrity checks between two parties that share a secret key, and works in combination with some other Digest algorithm, usually
+MD5 or SHA-1.
+The HMAC mechanism is described in RFC 2104.
+HMAC follow the common Digest:: interface, but the constructor takes the secret  key and the name of some other simple Digest:: as argument.
+
diff --git a/perl-Digest-HMAC.spec b/perl-Digest-HMAC.spec
new file mode 100644
index 0000000..45d5853
--- /dev/null
+++ b/perl-Digest-HMAC.spec
@@ -0,0 +1,79 @@
+Name:          perl-Digest-HMAC
+Version:       1.03
+Release:       2mamba
+Summary:       Digest::HMAC - Keyed-Hashing for Message Authentication
+Group:         System/Libraries/Perl
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Tiziana Ferro <tiziana.ferro@email.it>
+URL:           http://www.cpan.org
+Source:        http://search.cpan.org/CPAN/authors/id/G/GA/GAAS/Digest-HMAC-%{version}.tar.gz
+License:       GPL
+## AUTOBUILDREQ-BEGIN
+BuildRequires: perl-devel
+BuildRequires: perl-Digest-SHA1
+## AUTOBUILDREQ-END
+Requires:      perl >= %perl_major_ver
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+HMAC is used for message integrity checks between two parties that share a secret key, and works in combination with some other Digest algorithm, usually  
+MD5 or SHA-1.
+The HMAC mechanism is described in RFC 2104.
+HMAC follow the common Digest:: interface, but the constructor takes the secret  key and the name of some other simple Digest:: as argument.
+
+%prep
+%setup -q -n Digest-HMAC-%{version}
+
+%build
+perl Makefile.PL PREFIX=%{_prefix} INSTALLDIRS=vendor
+%make
+%make test
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall_perl
+
+packlist=`find %{buildroot} -name .packlist`
+[ -z "$packlist" ] && exit 1 || cat $packlist | \
+   sed "s,%{buildroot},,g;s,.*/man/.*,&.gz,g" | \
+   sort -u > .packlist && rm -f $packlist
+
+strid=`echo $packlist | sed 's,.*auto\(.*\)/.packlist,\1,'`
+for dir in `find %{buildroot} -type d | grep $strid`; do
+   echo "%dir ${dir#%buildroot}" >> .packlist
+done
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files -f .packlist
+%defattr(-,root,root)
+
+%changelog
+* Mon Nov 12 2012 Silvan Calarco <silvan.calarco@mambasoft.it> 1.03-2mamba
+- perl 5.16 mass rebuild
+
+* Fri Jul 29 2011 Automatic Build System <autodist@mambasoft.it> 1.03-1mamba
+- automatic update by autodist
+
+* Thu Oct 21 2010 Davide Madrisan <davide.madrisan@gmail.com> 1.02-2mamba
+- rebuild with INSTALLDIRS=vendor
+
+* Tue Jan 12 2010 Automatic Build System <autodist@mambasoft.it> 1.02-1mamba
+- automatic update by autodist
+
+* Tue Nov 04 2008 Silvan Calarco <silvan.calarco@mambasoft.it> 1.01-5mamba
+- automatic rebuild by autodist
+
+* Mon Jun 23 2008 Tiziana Ferro <tiziana.ferro@email.it> 1.01-4mamba
+- update Vendor, Distribution, mantainer, buildrequirements list
+
+* Wed May 10 2006 Stefano Cotta Ramusino <stefano.cotta@qilinux.it> 1.01-3qilnx
+- rebuilt
+
+* Tue Jan 18 2005 Silvan Calarco <silvan.calarco@mambasoft.it> 1.01-2qilnx
+- fix for perl requirements (>= instead of =)
+
+* Tue Feb 24 2004 Davide Madrisan <davide.madrisan@qilinux.it> 1.01-1qilnx
+- First build