[Cryptech Tech] Noise board on Novena

[Fredrik Thulin]

On Wednesday, September 24, 2014 09:14:34 AM Joachim Strömbergson wrote:
> Aloha!
> 
> Fredrik Thulin wrote:
> > To clarify, I think such a requirement would be a written requirement
> > directed to the designers of 3rd party entropy sources, not an FPGA
> > enforced one. It is my understanding too that it is rather expensive
> > to implement statistical tests over long series of output from the
> > entropy sources in the FPGA.
> > 
> > I think the always-running tests of the entropy sources will be
> > limited to making sure they are not stuck at some value, and maybe a
> > test to make sure the overall distribution of 0 and 1 bits are
> > somewhat close to 50%.
> 
> I think differently - and the tutorial yesterday seems to agree with me
> (or I with it. ;-)
> 
> We should at least be able to do a subset with 4, 5, 6 or so of the
> AIS31 tests, which are designed to be implemented in HW as on-line,
> continiously running tests. Judging by the tutorial these tests can be
> implemented with quite few resources.

Even better. I'm glad I had it backwards.

/Fredrik