protected function computeHmac()
    {
        $binKey = pack('H*', $this->globals['hmac_key']);

        return hash_hmac($this->globals['hmac_algorithm'], $this->stringifyParameters(), $binKey);
    }
protected function computeHmac()
    {
        $binKey = pack('H*', $this->globals['hmac_key']);

        return hash_hmac($this->globals['hmac_algorithm'], $this->stringifyParameters(), $binKey);
    }
protected function computeHmac ( ) { $ binKey = pack ( 'H*' , $ this -> globals [ 'hmac_key' ] ) ; return hash_hmac ( $ this -> globals [ 'hmac_algorithm' ] , $ this -> stringifyParameters ( ) , $ binKey ) ; }
Computes the hmac hash.

@return string
Computes the hmac hash .