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 unsingned 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 unsingned 32bit integer.
$checksum_hex = adler32_file_int('data string');
#or
$checksum_hex = adler32_file_int('any data', 'more data', 'even more data');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 unsingned 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 unsingned 32bit integer.
$checksum_hex = crc32_file_int('data string');
#or
$checksum_hex = crc32_file_int('any data', 'more data', 'even more data');