Crypt::Checksum(3)

NAME
Crypt::Checksum - functional interface to CRC32 and Adler32 checksums

SYNOPSIS
   use Crypt::Checksum ':all';

   # calculate Adler32 checksum from string/buffer
   $checksum_raw  = adler32_data($data);
   $checksum_hex  = adler32_data_hex($data);

   # calculate Adler32 checksum from file
   $checksum_raw  = adler32_file('filename.dat');
   $checksum_hex  = adler32_file_hex('filename.dat');

   # calculate Adler32 checksum from filehandle
   $checksum_raw  = adler32_file(*FILEHANDLE);
   $checksum_hex  = adler32_file_hex(*FILEHANDLE);

   # calculate CRC32 checksum from string/buffer
   $checksum_raw  = crc32_data($data);
   $checksum_hex  = crc32_data_hex($data);

   # calculate CRC32 checksum from file
   $checksum_raw  = crc32_file('filename.dat');
   $checksum_hex  = crc32_file_hex('filename.dat');

   # calculate CRC32 checksum from filehandle
   $checksum_raw  = crc32_file(*FILEHANDLE);
   $checksum_hex  = crc32_file_hex(*FILEHANDLE);

DESCRIPTION
Calculating CRC32 and Adler32 checksums (functional interface);

Since: CryptX-0.032

EXPORT
Nothing is exported by default.

You can export selected functions:

  use Crypt::Checksum qw( adler32_data adler32_data_hex adler32_file adler32_file_hex
                          crc32_data crc32_data_hex crc32_file crc32_file_hex );

Or all of them at once:

  use Crypt::Checksum ':all';

FUNCTIONS

  adler32_data
Returns checksum as raw octects.

 $checksum_raw = adler32_data('data string');
 #or
 $checksum_raw = adler32_data('any data', 'more data', 'even more data');

  adler32_data_hex
Returns checksum as a hexadecimal string.

 $checksum_hex = adler32_data_hex('data string');
 #or
 $checksum_hex = adler32_data_hex('any data', 'more data', 'even more data');

  adler32_data_int
Returns checksum as unsigned 32bit integer.

 $checksum_hex = adler32_data_int('data string');
 #or
 $checksum_hex = adler32_data_int('any data', 'more data', 'even more data');

  adler32_file
Returns checksum as raw octects.

 $checksum_raw = adler32_file('filename.dat');
 #or
 $checksum_raw = adler32_file(*FILEHANDLE);

  adler32_file_hex
Returns checksum as a hexadecimal string.

 $checksum_hex = adler32_file_hex('filename.dat');
 #or
 $checksum_hex = adler32_file_hex(*FILEHANDLE);

  adler32_file_int
Returns checksum as unsigned 32bit integer.

 $checksum_hex = adler32_file_int('filename.dat');
 #or
 $checksum_hex = adler32_file_int(*FILEHANDLE);

  crc32_data
Returns checksum as raw octects.

 $checksum_raw = crc32_data('data string');
 #or
 $checksum_raw = crc32_data('any data', 'more data', 'even more data');

  crc32_data_hex
Returns checksum as a hexadecimal string.

 $checksum_hex = crc32_data_hex('data string');
 #or
 $checksum_hex = crc32_data_hex('any data', 'more data', 'even more data');

  crc32_data_int
Returns checksum as unsigned 32bit integer.

 $checksum_hex = crc32_data_int('data string');
 #or
 $checksum_hex = crc32_data_int('any data', 'more data', 'even more data');

  crc32_file
Returns checksum as raw octects.

 $checksum_raw = crc32_file('filename.dat');
 #or
 $checksum_raw = crc32_file(*FILEHANDLE);

  crc32_file_hex
Returns checksum as a hexadecimal string.

 $checksum_hex = crc32_file_hex('filename.dat');
 #or
 $checksum_hex = crc32_file_hex(*FILEHANDLE);

  crc32_file_int
Returns checksum as unsigned 32bit integer.

 $checksum_hex = crc32_file_int('filename.dat');
 #or
 $checksum_hex = crc32_file_int(*FILEHANDLE);

SEE ALSO

•   CryptX, Crypt::Checksum::Adler32, Crypt::Checksum::CRC32

•   <https://en.wikipedia.org/wiki/Adler-32>

•   <https://en.wikipedia.org/wiki/Cyclic_redundancy_check>