[Cryptech Tech] Noise board on Novena

Joachim Strömbergson joachim at secworks.se
Tue Sep 23 23:31:16 UTC 2014


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Aloha!

Benedikt Stockebrand wrote:
> Now, I'm kind of unhappy with the "alive" pin; this implies that 
> there's still an MCU checking on the state of the noise interface. 
> But with the edge algorithm there shouldn't be much need for 
> that---you'll just notice that you don't get any more noise bits
> from that if things fail.

The "enabled" signal (if that is what you mean with "alive" pin) is
internally in the fpga and is used to the the mixer that there will be
data availabe from that specific entropy source (eventually) and
therefore should be in the round, robin scheme. Unless you do the FPGA
module part you should not have to consider it.

- -- Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
========================================================================
 Joachim Strömbergson          Secworks AB          joachim at secworks.se
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