/**
* @Override
*/
public function get($property, $default = null)
{
if ($property == 'length') {
return 5 + $this->encLength;
}
return parent::get($property);
}
/**
* @Override
*/
public function decode()
{
$conn = $this->conn;
$core = $conn->getCore();
$cipherSuite = $core->cipherSuite;
$sharedKey = $conn->Key;
$ivLen = $cipherSuite->getIVLen();
$macLen = $cipherSuite->getMACLen();
$MAC = $this->calculateMAC();
$IV = Core::getRandom($ivLen);
$data = $this->payload . $MAC;
// Calculate and append padding
$fpd = function ($l, $bz) {
return $l + $bz - $l % $bz - $l;
};
$paddingLength = $fpd(strlen($this->payload . $MAC) + 1, $ivLen);
$data .= Core::_pack('C', $paddingLength);
$encData = $cipherSuite->blockEncrypt($data, $sharedKey, $IV);
if (false === $encData) {
throw new TLSAlertException(Alert::create(Alert::BAD_RECORD_MAC), "Cipher block encryption failed");
}
$encData = $IV . $encData;
$this->incrementSeq();
if ($this->contentType == ContentType::HANDSHAKE) {
$core->countHandshakeMessages($this->payload);
}
$this->set('payload', $encData);
return parent::decode();
}
