[Cryptech Tech] ent for rosc entropy in the Xilinx FPGA

[Joachim Strömbergson]

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Aloha!

Bernd Paysan wrote:
> Sure, where can I get it?  A histogram plot over the bytes is the
> thing I do first to check if there's something odd; from the ent
> results, there probably isn't.

Great!

Do you have bittorrent sync? Otherwise we need to find a server to place
the data on for you.

> I would also like to have measurements with a high, constant sample
> rate, e.g. every 16 cycles; I only need a few kilobytes of those, so
> you can push that into an on-chip RAM.  This is a measurement of the
> jitter, so you can see how often you can read the roscs.

Ok. I need to update the HW for that, but it should be easily doable. I
will however not be able to do any serious work on that until Friday due
to other assigments.

I can also send you the bitfile for the FPGA on the Novena and scripts
etc to do extraction if you want to extract data yourself.

- -- 
Med vänlig hälsning, Yours

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