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Digest::CRC(3)                       User Contributed Perl Documentation                      Digest::CRC(3)



NAME
       Digest::CRC - Generic CRC functions

SYNOPSIS
         # Functional style

         use Digest::CRC qw(crc64 crc32 crc16 crcccitt crc crc8);
         $crc = crc64("123456789");
         $crc = crc32("123456789");
         $crc = crc16("123456789");
         $crc = crcccitt("123456789");
         $crc = crc8("123456789");

         $crc = crc($input,$width,$init,$xorout,$refout,$poly,$refin,$cont);

         # OO style
         use Digest::CRC;

         $ctx = Digest::CRC->new(type=>"crc16");
         $ctx = Digest::CRC->new(width=>16, init=>0x2345, xorout=>0x0000,
                                 refout=>1, poly=>0x8005, refin=>1, cont=>1);

         $ctx->add($data);
         $ctx->addfile(*FILE);

         $digest = $ctx->digest;
         $digest = $ctx->hexdigest;
         $digest = $ctx->b64digest;

DESCRIPTION
       The Digest::CRC module calculates CRC sums of all sorts.  It contains wrapper functions with the
       correct parameters for CRC-CCITT, CRC-16, CRC-32 and CRC-64.

AUTHOR
       Oliver Maul, oli@42.nu

COPYRIGHT
       CRC algorithm code taken from "A PAINLESS GUIDE TO CRC ERROR DETECTION
        ALGORITHMS".

       The author of this package disclaims all copyrights and releases it into the public domain.



perl v5.12.5                                     2013-08-25                                   Digest::CRC(3)