NAME
Crypt::Mac::HMAC - Message authentication code HMAC
SYNOPSIS
### Functional interface:
use Crypt::Mac::HMAC qw( hmac hmac_hex );
# calculate MAC from string/buffer
$hmac_raw = hmac('SHA256', $key, 'data buffer');
$hmac_hex = hmac_hex('SHA256', $key, 'data buffer');
$hmac_b64 = hmac_b64('SHA256', $key, 'data buffer');
### OO interface:
use Crypt::Mac::HMAC;
$d = Crypt::Mac::HMAC->new('SHA256', $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 HMAC message authentication code (MAC) algorithm.
EXPORT
Nothing is exported by default.
You can export selected functions:
use Crypt::Mac::HMAC qw(hmac hmac_hex );Or all of them at once:
use Crypt::Mac::HMAC ':all';FUNCTIONS
hmac
Logically joins all arguments into a single string, and returns its HMAC message authentication code encoded as a binary string.
$hmac_raw = hmac($hash_name, $key, 'data buffer');
#or
$hmac_raw = hmac($hash_name, $key, 'any data', 'more data', 'even more data');hmac_hex
Logically joins all arguments into a single string, and returns its HMAC message authentication code encoded as a hexadecimal string.
$hmac_hex = hmac_hex($hash_name, $key, 'data buffer');
#or
$hmac_hex = hmac_hex($hash_name, $key, 'any data', 'more data', 'even more data');hmac_b64
Logically joins all arguments into a single string, and returns its HMAC message authentication code encoded as a BASE64 string.
$hmac_b64 = hmac_b64($hash_name, $key, 'data buffer');
#or
$hmac_b64 = hmac_b64($hash_name, $key, 'any data', 'more data', 'even more data');METHODS
The OO interface provides the same set of functions as Crypt::Mac.
new
$d = Crypt::Mac::HMAC->new($hash_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_b64 = $d->b64mac();