[cryptography] Quality of HAVEGE algorithm for entropy?

Stephan Mueller smueller at chronox.de
Fri Nov 29 14:50:04 EST 2013


Am Freitag, 29. November 2013, 13:16:48 schrieb Zack Weinberg:

Hi Zack,

> On Nov 29, 2013 5:55 AM, "Stephan Mueller" <smueller at chronox.de> wrote:
> > My RNG is:
> > 
> > rdtsc
> > <some small code>
> > rdtsc
> > 
> > ==> now you simply measure the execution time of the code. That time 
shows
> > variances. And I just pick them up and magnify them.
> 
> What does the autocorrelation matrix look like for this RNG? If your
> hypothesis about what you're measuring is correct, you ought to see a beat
> pattern between the two clock sources.

I do not see any correlation. And that is why on the one hand I consider the 
RNG good so far. But on the other hand I yet fail to fully grasp the 
fundamental mechanism that drives the RNG.
> 
> zw


Ciao
Stephan
-- 
| Cui bono? |


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