DESCRIPTION
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Algorithm::LUHN - Calculate the Modulus 10 Double Add Double checksum

This module calculates the Modulus 10 Double Add Double checksum. This 
algorithm is used to verify credit card numbers and Standard & Poor's 
security identifiers such as CUSIP's and ISIN's.

INSTALLATION
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This is a simple module. The typical installation routine should work fine.

  perl Makefile.PL
  make test
  make install

COPYRIGHT
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Copyright (c) 2001 Tim R. Ayers. All rights reserved. 

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