Sorry, I think I misunderstood your email Marcel, apologies for that. But yes, I have a sketch for this as a kernel driver (but still non functional). Nevertheless, in my repo there is a proof-of-concept version that I used in the experiments presented in the video. Thanks for the feedback. Em ter., 20 de out. de 2020 às 15:38, Marcel Holtmann <marcel@xxxxxxxxxxxx> escreveu: > > Hi Alexandre, > > > based on the motivation that IoT devices do not have many entropy > > sources available, and also on the fact that trusting in a single > > source may be risky, I have researched some additional ways to collect > > randomness for the device, using bluetooth technology for that > > purpose. > > > > For those who are interested in: > > > > Github: https://github.com/AAGiron/Bluerandom > > Presentation: https://www.youtube.com/watch?v=iAKaKAmqCFo > > > > I also want to say thanks in advance to Emil Lenngren for his valuable > > comments, here in this mailing list (back in 2019), and also to the > > Bluez community. > > I would integrate as kernel driver. The Bluetooth stack could just use its > own LE random generator and an initial passive scan to gather RSSI values. > No need to push this into user space. > > Regards > > Marcel > -- Alexandre Augusto Giron Professor da UTFPR Doutorando em Ciência da Computação (UFSC)