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Date: Mon, 19 Aug 2002 12:47:44 +0200 (CEST)
From: Marco Colombo <marco@esi.it>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] (0/4) Entropy accounting fixes
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Message-ID: <Pine.LNX.4.44.0208191220260.26653-100000@Megathlon.ESI>
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On 18 Aug 2002, Alan Cox wrote:

> On Sun, 2002-08-18 at 05:06, dean gaudet wrote:
> > On 17 Aug 2002, Robert Love wrote:
> > 
> > > [1] this is why I wrote my netdev-random patches.  some machines just
> > >     have to take the entropy from the network card... there is nothing
> > >     else.
> > 
> > many southbridges come with audio these days ... isn't it possible to get
> > randomness off the adc even without anything connected to it?
> 
> Both the AMD and Intel bridges also come with high speed random number
> generators (i810-rng, amd768-rng). ADC randomness itself tends to be
> very suspect.

BTW, I know you wrote the amd768-rng driver, I wonder if you have any
indication of how good these rng are. What is the typical output bits/
random bits ratio in normal applications?

.TM.
-- 
      ____/  ____/   /
     /      /       /			Marco Colombo
    ___/  ___  /   /		      Technical Manager
   /          /   /			 ESI s.r.l.
 _____/ _____/  _/		       Colombo@ESI.it

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