bugtraq - Re: /dev/random is probably not

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Message-ID: <Pine.LNX.4.44.0507070657240.10037-100000@ares.ccii.unipi.it>
Date: Thu, 7 Jul 2005 07:03:24 +0200 (CEST)
From: Francesco Messineo <frank@...s.ccii.unipi.it>
To: Thomas <tom@...ctric-sheep.org>
Cc: bugtraq@...urityfocus.com,
	Darren Reed <avalon@...igula.anu.edu.au>, exon <exon@...e.se>
Subject: Re: /dev/random is probably not

On Wed, 6 Jul 2005, Thomas wrote:

> > Linux cited using keyboard interrupts.  How many of those happen on
> > a web server in a rack, in an air conditioned computer room somewhere ?
> > How many happen when you open up your web browser and select your
> > internet banking web site from your bookmarks?
> 
> To complete the list, Linux uses:
> 	- block-device access

well, for the current 2.4 kernel series block device must be different 
from i2o type controllers. I have some servers (no keyboard, no mouse)
with only i2o storage that weren't gathering any "entropy" according to
/proc/sys/kernel/random/entropy_avail.
I submitted a patch several times with no luck.
Without the patch the entropy_avail counter was always at 0.

Regards

--
IS0FKQ