Dear Sir ,
I am new to IoT LoRa node, and LoRaWAN, currently I am using E32-868T30D UART modules, I did the testing point to point communication successfully without encryption. I am clueless about how to add encryption to transmitting data.
I would like to know is the any proper guideline or tutorial to add encryption and decryption. I would be very grateful if anyone could help me with relevant information.