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From:   Alexandre Augusto <alexandre.a.giron@gmail.com>
Date:   Tue, 20 Oct 2020 16:19:59 -0300
Message-ID: <CABLzjm-8-=73XQFxsqoGaqXYS=1E7jA5m_bqsGKmRj8gdt+e+g@mail.gmail.com>
Subject: Re: Entropy source based on the RSSI
To:     Marcel Holtmann <marcel@holtmann.org>
Cc:     Bluez mailing list <linux-bluetooth@vger.kernel.org>
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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 =C3=A0s 15:38, Marcel Holtmann
<marcel@holtmann.org> 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=3DiAKaKAmqCFo
> >
> > 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 it=
s
> own LE random generator and an initial passive scan to gather RSSI values=
.
> No need to push this into user space.
>
> Regards
>
> Marcel
>


--=20
Alexandre Augusto Giron
Professor da UTFPR
Doutorando em Ci=C3=AAncia da Computa=C3=A7=C3=A3o (UFSC)