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From:   Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Date:   Thu, 15 Oct 2020 16:00:09 -0700
Message-ID: <CABBYNZKP45JDj7dBAADVN7+1vpLCEcFy2y62yfGE0c1gGG5fjA@mail.gmail.com>
Subject: Re: Entropy source based on the RSSI
To:     Alexandre Augusto <alexandre.a.giron@gmail.com>
Cc:     Bluez mailing list <linux-bluetooth@vger.kernel.org>
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Ola Alexandre,

Que coincid=C3=AAncia ver alguem da UTFPR por aqui, fiz meu mestrado ai em
2003, muito legal o seu trabalho. So por curiosidade, voce chegou a
usar o BT_HCI_CMD_LE_RAND como fonte de entropia? No Zephyr
(https://www.zephyrproject.org/) agente usa bastante porque o
controlador pode usar o sinal de interfer=C3=AAncia direto da camada do
radio, abaixo da interface HCI, e segundo o pessoal da Nordic tem uma
qualidade bem maior do que por exemplo RSSI porque nao depende da
quantidade de dispositivos em volta.

On Thu, Oct 15, 2020 at 2:59 PM Alexandre Augusto
<alexandre.a.giron@gmail.com> wrote:
>
> Hello,
>
> 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.
>
> --
> Alexandre Augusto Giron


--=20
Luiz Augusto von Dentz