4 ms·
Are these for garage doors and doorbells? Those devices could definitely use more security (it's not hard to stuff a proper TLS stack in a microcontroller but m
by Onavo 1y ago
Are these for garage doors and doorbells? Those devices could definitely use more security (it's not hard to stuff a proper TLS stack in a microcontroller but manufacturers balk at even putting something as cheap as a ESP32 in their BOM).
- tptacek 1y agoAlso for currently-constrained platforms for which hardware updates are infeasible, software updates aren't, and cryptographic security is currently compromised due to lack of availability of appropriate constructions.
- brohee 1y agoYou'd change the coin cell in an ESP32 powered garage door fob monthly... Unacceptable to most.
- sowbug 1y agoAny remote control's microcontroller would be in deep sleep most of the time, and computationally expensive key exchange would be rare. I have a few of these ESP-8266 remotes, and battery life is fine. https://github.com/mcer12/Hugo-ESP8266 https://github.com/mcer12/Hugo-ESP8266