$request = '{data};
$IVdata = random_bytes(16);
$pw = random_bytes(32);
$mk = 'xxx'; // hmac контроль в формате base64
$dataAES = openssl_encrypt($request, "aes-256-ctr", $pw, OPENSSL_RAW_DATA, $IVdata);
$hmac = hash_hmac('sha512', $IVdata.$dataAES, base64_decode($mk), true);
$returnDataDE = base64_encode($hmac.$IVdata.$dataAES);