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

[Peter Zijlstra]

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@xxxxxxxxxxxxxxx/msg05778.html
> 
> We hit a bit of a roadblock with it though.

Have you guys seen this work:

  http://lwn.net/images/conf/rtlws11/random-hardware.pdf


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