[Cryptech Tech] User auditable hardware entropy source/random number generator

Fredrik Thulin fredrik at thulin.net
Sun Jul 13 16:55:59 UTC 2014


On Saturday, July 12, 2014 10:06:31 PM Benedikt Stockebrand wrote:
... 
> Anyway, as soon as I've got this mess with the Zener diodes sorted out
> I'll let you know.  It'll take some time, partly because this is too
> high frequency to trust breadboard and partly because running the tests
> takes so long.  For now, I'll go for higher breakdown voltage (which
> I'll have to order first) and possibly a slower extraction rate.

Hmm? You mean you are using an off the shelf charge pump circuit rather than a 
diodes-and-caps voltage doubler, like the Dickson doubler [1] [2]?
 
Very much looking forward to more details about your circuit =).

/Fredrik


[1] http://en.wikipedia.org/wiki/Voltage_doubler
[2] www.youtube.com/watch?v=I4ED_8cuVTU 


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