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

[Bernd Paysan]

Am Donnerstag, 10. Juli 2014, 22:44:43 schrieb Leif Johansson:
> > I know that the NSA was good at pulling all sorts of strings, but the
> > way they managed to sneak in all these ultra-low-noise Zener diodes is
> > really impressive on the border of scary:-)
> 
> Yeah there is no use for _low_ noise zener diodes ;-) Next they'll go
> after amplifiers ... the bastards !

Hm, for noise sources, you should use avalanche diodes, not zener diodes

https://en.wikipedia.org/wiki/Avalanche_diode

The noise from zener breakdown is smaller than the one from avalanche 
breakdown (most ener diodes have a mix of both breakdowns, so they are still 
sufficiently noisy), therefore, as a noise source, avalanche diodes are 
preferred.

-- 
Bernd Paysan
"If you want it done right, you have to do it yourself"
http://bernd-paysan.de/
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