AES Encryption

How does the communication encryption work?

Communication is encrypted through AES (Advanced Encryption Standard), and the encryption method is as follows.

1. The server generates a random session key.
2. The server encrypts the randomly generated session key using a fixed key and sends it to the device.
3. The device decrypts the encrypted session key using a fixed key.
4. After the device decrypts the session key, the communication is then encrypted using the session key.