[Cryptech Tech] Comments on Alpha board schematics

Fredrik Thulin fredrik at thulin.net
Wed Jan 27 12:32:56 UTC 2016


On Wednesday, January 27, 2016 11:28:39 AM Randy Bush wrote:
> how much complexity are we supporting to increase the time diodes can
> survive torture from X years to X+Y years, and what are estimates of X
> and Y?
> 
> if X approximates battery life, Y is not worth much.

Emphasizing that I'm just making an half-educated guess here, I think X 
is 2-3 and Y is about 10.

And I think the amount of *extra* complexity to support turning the 
entropy source back on again after it has been asleep for 5 months 
shouldn't be much. 99% of the complexity is there already to handle 
testing of the entropy source on HSM boot.

/Fredrik
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