[Cryptech Tech] Hardware entropy

Joachim Strömbergson joachim at secworks.se
Fri May 23 11:42:32 UTC 2014


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Aloha!

Bernd Paysan wrote:
> From a transparency/debugging point of view, I would advice against
> whitening in the entropy provider.  Testing for "entropy source is
> alive" is a good idea, but from a design point of view there should
> be several modules which perform different tests.  The designer of
> the entropy source then can choose blocks to monitor his source.

If someone wants to do von Neumann whitening that would be ok with me -
as long as the raw entropy extraction point happens before the whitening.

I would like to have a basic set of on-line tests that will _always_
have to be included in the entropy provider for each entropy source.
That way we have a baseline detection. I will try to write down the set
of tests I think we should have in this baseline.

- -- 
Med vänlig hälsning, Yours

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