From: "David Schwartz" <davids@webmaster.com>
To: "Jan Engelhardt" <jengelh@linux01.gwdg.de>
Cc: "Javier Villavicencio" <javierv@migraciones.gov.ar>,
"Linux Kernel" <linux-kernel@vger.kernel.org>
Subject: RE: no entropy and no output at /dev/random (quick question)
Date: Sat, 27 Nov 2004 13:35:58 -0800 [thread overview]
Message-ID: <MDEHLPKNGKAHNMBLJOLKIEKEABAB.davids@webmaster.com> (raw)
In-Reply-To: <41A8D89B.9090909@domdv.de>
> Timer, ok. But network - only if you are in full control of the network
> segment the system is attached to which may be the case for your private
> network but usually you can't predict what network traffic is actually
> going on.
You would need a lot more than that to predict the TSC value when a packet
is received. All kinds of unpredictable elements get mixed in, such as the
offset between the network's timing source and the processor's as well as
the cache efficiency in getting the networking code running to the point
that it checks the TSC.
DS
next prev parent reply other threads:[~2004-11-27 21:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-27 2:59 Javier Villavicencio
2004-11-27 4:38 ` Javier Villavicencio
2004-11-27 19:20 ` David Wagner
2004-11-28 6:29 ` Herbert Xu
2004-11-29 15:32 ` Theodore Ts'o
2004-11-30 12:49 ` Horst von Brand
2004-11-30 16:48 ` Javier Villavicencio
2005-01-07 19:17 ` Denis Vlasenko
2004-11-27 19:24 ` Jan Engelhardt
2004-11-27 19:22 ` Jan Engelhardt
2004-11-27 19:42 ` Andreas Steinmetz
2004-11-27 21:35 ` David Schwartz [this message]
2004-11-27 21:44 ` Jan Engelhardt
2004-11-29 22:47 ` Javier Villavicencio
2004-11-29 22:51 ` Javier Villavicencio
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