Crypt::Mac::HMAC − Message authentication code HMAC
### 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');
$hmac_b64u = hmac_b64u('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 form
$result_b64u = $d−>b64umac; # Base64 URL Safe
form
Provides an interface to the HMAC message authentication code (MAC) algorithm.
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';
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');
# $hash_name ... any <NAME> for which there exists
Crypt::Digest::<NAME>
# $key ......... the key (octets/bytes)
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');
# $hash_name ... any <NAME> for which there exists
Crypt::Digest::<NAME>
# $key ......... the key (octets/bytes, not hex!)
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');
# $hash_name ... any <NAME> for which there exists
Crypt::Digest::<NAME>
# $key ......... the key (octets/bytes, not Base64!)
Logically joins all arguments into a single string, and returns its HMAC message authentication code encoded as a Base64 URL Safe string (see RFC 4648 section 5).
$hmac_b64url =
hmac_b64u($hash_name, $key, 'data buffer');
#or
$hmac_b64url = hmac_b64u($hash_name, $key, 'any data', 'more
data', 'even more data');
# $hash_name ... any <NAME> for which there exists
Crypt::Digest::<NAME>
# $key ......... the key (octets/bytes, not Base64url!)
$d =
Crypt::Mac::HMAC−>new($hash_name, $key);
# $hash_name ... any <NAME> for which there exists
Crypt::Digest::<NAME>
# $key ......... the key (octets/bytes)
$d−>clone();
$d−>reset();
$d−>add('any
data');
#or
$d−>add('any data', 'more data', 'even more
data');
$d−>addfile('filename.dat');
#or
$d−>addfile(*FILEHANDLE);
$result_raw = $d−>mac();
$result_hex = $d−>hexmac();
$result_b64 = $d−>b64mac();
$result_b64url = $d−>b64umac();
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CryptX |
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<https://en.wikipedia.org/wiki/Hmac> |
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<https://tools.ietf.org/html/rfc2104> |