/**
* @param string $password
* @param string $nonce
* @return string[]
*/
public static function generateKeys($password, $nonce)
{
$array = ["key", "key", "key", "key"];
$array2 = [1, 2, 3, 4];
$nonce .= '0';
$count = count($array);
for ($j = 0; $j < $count; $j++) {
$nonce[strlen($nonce) - 1] = chr($array2[$j]);
$foo = ProtocolService::pbkdf2("sha1", $password, $nonce, 2, 20, true);
$array[$j] = $foo;
}
return $array;
}
protected function createAuthBlob()
{
if ($this->challengeData) {
$key = ProtocolService::pbkdf2('sha1', base64_decode($this->getIdentity()->getPassword()), $this->challengeData, 16, 20, true);
$this->getConnection()->setInputKey($this->createKeyStream($key[2], $key[3]));
$this->getConnection()->setOutputKey($this->createKeyStream($key[0], $key[1]));
$this->getConnection()->getNodeReader()->setKey($this->getConnection()->getInputKey());
//$this->getConnection()->getNodeWriter()->setKey($this->getConnection()->getOutputKey());
$phone = $this->getIdentity()->getPhone();
$array = "" . $phone->getPhoneNumber() . $this->challengeData . time() . static::WHATSAPP_USER_AGENT . " MccMnc/" . str_pad($phone->getMcc(), 3, "0", STR_PAD_LEFT) . "001";
$this->challengeData = null;
return $this->getConnection()->getOutputKey()->encodeMessage($array, 0, strlen($array), 0);
}
return null;
}