PRNG on FreeBSD

Ricardo Nabinger Sanchez rnsanchez at wait4.org
Thu Oct 5 09:33:38 PDT 2006


On Thu, 05 Oct 2006 14:54:39 +0100
Mark Murray <markm at FreeBSD.ORG> wrote:

> Robert Watson writes:
> > 
> > Yarrow is an older PRNG algorithm, and Fortuna is (as I understand
> > it) generally considered its successor.  Mark Murray (CC'd), who
> > implemented our current /dev/random and Yarrow code, has been working
> > on a Fortuna implementation for FreeBSD.

Nice!

> 
> Indeed. Fortuna is also looking like it is going to be a significant
> resource hog WRT memory, particularly on small/embedded devices.

Apart from the higher memory usage which can hurt modest devices, what are
the CPU requirements?  Proportional (higher?) from SHA-1 to SHA-256?

When the patches are ready, I can test under RELENG_6 and also under a
low-end CURRENT box, if its hard-drive doesn't explode soon. :)

Thanks.

-- 
Ricardo Nabinger Sanchez     <rnsanchez@{gmail.com,wait4.org}>
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