1Digest::CRC(3)        User Contributed Perl Documentation       Digest::CRC(3)
2
3
4

NAME

6       Digest::CRC - Generic CRC functions
7

SYNOPSIS

9         # Functional style
10
11         use Digest::CRC qw(crc32 crc16 crcccitt crc crc8);
12         $crc = crc32("123456789");
13         $crc = crc16("123456789");
14         $crc = crcccitt("123456789");
15         $crc = crc8("123456789");
16
17         $crc = crc($input,$width,$init,$xorout,$refout,$poly,$refin);
18
19         # OO style
20         use Digest::CRC;
21
22         $ctx = Digest::CRC->new(type=>"crc16");
23         $ctx = Digest::CRC->new(width=>16, init=>0x2345, xorout=>0x0000,
24                                 poly=>0x8005, refin=>1, refout=>1, cont=>1);
25
26         $ctx->add($data);
27         $ctx->addfile(*FILE);
28
29         $digest = $ctx->digest;
30         $digest = $ctx->hexdigest;
31         $digest = $ctx->b64digest;
32

DESCRIPTION

34       The Digest::CRC module calculates CRC sums of all sorts.  It contains
35       wrapper functions with the correct parameters for CRC-CCITT, CRC-16 and
36       CRC-32.
37

AUTHOR

39       Oliver Maul, oli@42.nu
40

42       CRC algorithm code taken from "A PAINLESS GUIDE TO CRC ERROR DETECTION
43        ALGORITHMS".
44
45       The author of this package disclaims all copyrights and releases it
46       into the public domain.
47
48
49
50perl v5.8.8                       2007-11-05                    Digest::CRC(3)
Impressum