| Crypt::Mac::BLAKE2s(3) | User Contributed Perl Documentation | Crypt::Mac::BLAKE2s(3) | 
NAME¶
Crypt::Mac::BLAKE2s - Message authentication code BLAKE2s MAC (RFC 7693)
SYNOPSIS¶
   ### Functional interface:
   use Crypt::Mac::BLAKE2s qw( blake2s blake2s_hex );
   # calculate MAC from string/buffer
   $blake2s_raw  = blake2s($size, $key, 'data buffer');
   $blake2s_hex  = blake2s_hex($size, $key, 'data buffer');
   $blake2s_b64  = blake2s_b64($size, $key, 'data buffer');
   $blake2s_b64u = blake2s_b64u($size, $key, 'data buffer');
   ### OO interface:
   use Crypt::Mac::BLAKE2s;
   $d = Crypt::Mac::BLAKE2s->new($size, $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 form
   $result_b64u = $d->b64umac; # Base64 URL Safe form
DESCRIPTION¶
Provides an interface to the BLAKE2s message authentication code (MAC) algorithm.
EXPORT¶
Nothing is exported by default.
You can export selected functions:
use Crypt::Mac::BLAKE2s qw(blake2s blake2s_hex );
Or all of them at once:
use Crypt::Mac::BLAKE2s ':all';
FUNCTIONS¶
blake2s¶
Logically joins all arguments into a single string, and returns its BLAKE2s message authentication code encoded as a binary string.
$blake2s_raw = blake2s($size, $key, 'data buffer'); #or $blake2s_raw = blake2s($size, $key, 'any data', 'more data', 'even more data');
blake2s_hex¶
Logically joins all arguments into a single string, and returns its BLAKE2s message authentication code encoded as a hexadecimal string.
$blake2s_hex = blake2s_hex($size, $key, 'data buffer'); #or $blake2s_hex = blake2s_hex($size, $key, 'any data', 'more data', 'even more data');
blake2s_b64¶
Logically joins all arguments into a single string, and returns its BLAKE2s message authentication code encoded as a Base64 string.
$blake2s_b64 = blake2s_b64($size, $key, 'data buffer'); #or $blake2s_b64 = blake2s_b64($size, $key, 'any data', 'more data', 'even more data');
blake2s_b64u¶
Logically joins all arguments into a single string, and returns its BLAKE2s message authentication code encoded as a Base64 URL Safe string (see RFC 4648 section 5).
$blake2s_b64url = blake2s_b64u($size, $key, 'data buffer'); #or $blake2s_b64url = blake2s_b64u($size, $key, 'any data', 'more data', 'even more data');
METHODS¶
new¶
$d = Crypt::Mac::BLAKE2s->new($size, $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();
b64umac¶
$result_b64url = $d->b64umac();
SEE ALSO¶
- CryptX
 - <https://tools.ietf.org/html/rfc7693>
 
| 2025-06-11 | perl v5.42.0 |