Dcrypt\Hash::ihmac PHP Method

Hash Class Documentation Usage Examples Of Dcrypt\Hash::ihmac Datei anzeigen Open project: dopecode/dcrypt

ihmac() public static method

This class always performs at least one hash to prevent the input from being passed back unchanged if bad parameters are set.
public static ihmac ( string $data, string $key, integer $iter, string $algo = 'sha256' ) : string
$data string Data to hash.
$key string Key to use to authenticate the hash.
$iter integer Number of times to iteratate the hash
$algo string Name of algo (sha256 or sha512 recommended)
return string 
    public static function ihmac($data, $key, $iter, $algo = 'sha256')
    {
        $iter = abs($iter);
        for ($i = 0; $i <= $iter; $i++) {
            $data = \hash_hmac($algo, $data . $i . $iter, $key, true);
        }
        return $data;
    }

Usage Example

Beispiel #1
0
 public function testIhmacSanity()
 {
     // Make sure at least one hash always happens with any kind of crazy cost value
     $this->assertNotEquals('aaaa', Hash::ihmac('aaaa', 'bbbb', 0));
     $this->assertNotEquals('aaaa', Hash::ihmac('aaaa', 'bbbb', -1));
 }
Hash
build
cost
costHash
ihmac
make
verify