Reply To: SPECK and SIMON for my thesis: why are they called IoT ciphers, and could a sensor use one instead of TLS?

This helps a lot. I think I had “cipher” and “protocol” mixed up in my head. New plan for the practical chapter: benchmark SPECK64/128 against ChaCha20 on the ATmega328P (cycles per byte, flash, RAM), and keep the ESP32s on normal TLS to the broker. My supervisor laughed at the “instead of TLS” part when I explained the key exchange bit, so I think he was joking anyway.