NAME
Crypt::Mac::OMAC - Message authentication code OMAC
SYNOPSIS
### Functional interface:
use Crypt::Mac::OMAC qw( omac omac_hex );
# calculate MAC from string/buffer
$omac_raw = omac($cipher_name, $key, 'data string');
$omac_hex = omac_hex($cipher_name, $key, 'data string');
$omac_b64 = omac_b64($cipher_name, $key, 'data string');
### OO interface:
use Crypt::Mac::OMAC;
$d = Crypt::Mac::OMAC->new($cipher_name, $key);
$d->add('any data');
$d->addfile('filename.dat');
$d->addfile(*FILEHANDLE);
$result_raw = $d->mac; # raw bytes
$result_hex = $d->hexmac; # hexadecimal form
$result_b64 = $d->b64mac; # Base64 formDESCRIPTION
Provides an interface to the OMAC message authentication code (MAC) algorithm.
EXPORT
Nothing is exported by default.
You can export selected functions:
use Crypt::Mac::OMAC qw(omac omac_hex );Or all of them at once:
use Crypt::Mac::OMAC ':all';FUNCTIONS
omac
Logically joins all arguments into a single string, and returns its OMAC message authentication code encoded as a binary string.
$omac_raw = omac($cipher_name, $key, 'data string');
#or
$omac_raw = omac($cipher_name, $key, 'any data', 'more data', 'even more data');omac_hex
Logically joins all arguments into a single string, and returns its OMAC message authentication code encoded as a hexadecimal string.
$omac_hex = omac($cipher_name, $key, 'data string');
#or
$omac_hex = omac($cipher_name, $key, 'any data', 'more data', 'even more data');omac_b64
Logically joins all arguments into a single string, and returns its OMAC message authentication code encoded as a BASE64 string.
$omac_b64 = omac($cipher_name, $key, 'data string');
#or
$omac_b64 = omac($cipher_name, $key, 'any data', 'more data', 'even more data');METHODS
The OO interface provides the same set of functions as Crypt::Mac.
new
$d = Crypt::Mac::OMAC->new($cipher_name, $key);clone
$d->clone();reset
$d->reset();add
$d->add('any data');
#or
$d->add('any data', 'more data', 'even more data');addfile
$d->addfile('filename.dat');
#or
$d->addfile(*FILEHANDLE);mac
$result_raw = $d->mac();hexmac
$result_hex = $d->hexmac();b64mac
$result_base64 = $d->b64mac();