Libmd is a cryptographic message digest library. It implements these message digest algorithms:
To install libmd on your Unix box, simply download tarball from my ftp site, extract it (cd /usr/src; bzip2 -dc tarball|tar xvf -), compile it (./configure; make all) & install it (make install). At your option, you might download pre-compiled binary package, if any for your system exists :)