linux-kernel - Re: [PATCH] drivers/net: remove network drivers' last few uses ofIRQF_SAMPLE

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Date:	Sun, 18 May 2008 10:54:44 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Gilles Espinasse" <g.esp@...e.fr>
Cc:	"Adrian Bunk" <bunk@...nel.org>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drivers/net: remove network drivers' last few uses
 ofIRQF_SAMPLE_RANDOM

> Why remove IRQF_SAMPLE_RANDOM if "it cannot make the RNG output worse."
> We should not care if network traffic can be sniffed in some configurations
> (plus sniffing could be very unlikely in some others).

It makes it much worse - it lies about entropy.

> My understanding of openssl developper answer is same as yours :
> "it cannot make the RNG output worse."

If you don't care about the quality of your "random" numbers then
use /dev/urandom. It's very simple.
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