1 The Digest::SHA1 module allows you to use the NIST SHA-1 message 2 digest algorithm from within Perl programs. The algorithm takes as 3 input a message of arbitrary length and produces as output a 160-bit 4 "fingerprint" or "message digest" of the input. 5 6 SHA1 is described at <http://www.itl.nist.gov/fipspubs/fip180-1.htm> 7 8 You will need Perl version 5.004 or better to install this module. 9 10 Copyright 1999-2004 Gisle Aas. 11 Copyright 1997 Uwe Hollerbach. 12 13 This library is free software; you can redistribute it and/or 14 modify it under the same terms as Perl itself.