[Cryptech Tech] road to berlin

[Fredrik Thulin]

On Tuesday, April 26, 2016 11:07:11 AM Joachim Strömbergson wrote:
> Aloha!
> 
> Paul Selkirk wrote:
> > Commands will probably include:
> ...
> > - create master key - list keys - show stats
> ...
> > 6. AVR tamper detection: We have an ATTiny828 connected to the
> > Master Key Memory, and to a tamper circuit (currently a push-button
> > labeled PANIC). When the unit is tampered, it should wipe the MKM,
> > and ideally interrupt the STM32. This seems simple enough, but we
> > haven't gotten around to it yet.
> 
> Regarding MKM and tamper. I've almost done with the RTL design for a
> first, very limited mkmif module. The current version will only support
> reading and writing 32-bit words to the specific Microchip memory.
> (including mem init and mem command handlingt). I've got 10 chips of the
> specific type from Mouser and are modifying one of the old entropy
> boards to connect it to the Novena.

Thanks to you too! Let me know if I can help you with some hacked together 
hardware, or something else.

> When this works we can add tamoer-zeroisation functionality etc. But for
> the bring up we should at least have something to test the MKM
> functionality from the FPGA with.

Yes, definitely important to test the FPGA <-> MKM early.

/Fredrik
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.cryptech.is/archives/tech/attachments/20160426/f4b94150/attachment-0001.html>