The Digest::Adler32 implements the Adler-32 checksum as
specified in RFC 1950 within the Digest:: framwork.  This
is a very weak Digest, only producing 32 bit digests.

Copyright 1996 L. Peter Deutsch and Jean-Loup Gailly
Copyright 2001,2003 Gisle Aas

This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.