Re: [PATCH] random: add blocking facility to urandom

Peter Zijlstra
2011-09-13T10:59:05Z

On Mon, 2011-09-12 at 09:56 -0400, Jarod Wilson wrote:
> Thomas Gleixner wrote:

> > Well, there is enough prove out there that the hardware you're using
> > is a perfect random number generator by itself.
> >
> > So stop complaining about not having access to TPM chips if you can
> > create an entropy source just by (ab)using the inherent randomness of
> > modern CPU architectures to refill your entropy pool on the fly when
> > the need arises w/o imposing completely unintuitive thresholds and
> > user visible API changes.
>
> We started out going down that path:
>
> http://www.mail-archive.com/linux-crypto@vger.kernel.org/msg05778.html
>
> We hit a bit of a roadblock with it though.

Have you guys seen this work: