From: RB <aoz.syn@gmail.com>
To: gentoo-hardened@lists.gentoo.org
Subject: Re: [gentoo-hardened] Bought an "entropy-key" - very happy
Date: Thu, 25 Mar 2010 14:41:28 -0600 [thread overview]
Message-ID: <4255c2571003251341i2d00bd03l9ab27ea1f8079193@mail.gmail.com> (raw)
In-Reply-To: <4BABC8E5.7040305@wildgooses.com>
On Thu, Mar 25, 2010 at 14:34, Ed W <lists@wildgooses.com> wrote:
> I noticed a munin script in the ekeyd download - haven't tried it, but the
> quantity of variables you can monitor from the device seemed quite
> impressive. Who would have thought you would have wanted to graph the
> temperature of your random number generator, but for those who do, you are
> in luck...
Thermal and power fluctuations are common approaches to subverting the
entropy available in an RNG. Thermal noise based entropy generators
are particularly sensitive to this - reduce the temperature, reduce
the entropy. IIRC, the VIA RNG is based on a pair of thermal sensors,
but since they're on-die it's regarded more as difficult to subvert
than an external set.
next prev parent reply other threads:[~2010-03-25 21:03 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-23 20:39 [gentoo-hardened] Bought an "entropy-key" - very happy Ed W
2010-03-23 21:02 ` lists
2010-03-25 13:10 ` Rob Kendrick
2010-03-25 17:50 ` pageexec
2010-03-25 20:12 ` Rob Kendrick
2010-03-25 19:38 ` pageexec
2010-03-25 23:53 ` Ed W
2010-03-26 0:36 ` Rob Kendrick
2010-03-25 20:17 ` Ed W
2010-03-25 20:21 ` Rob Kendrick
2010-03-25 13:30 ` Ed W
2010-03-25 19:23 ` lists
2010-03-25 19:34 ` Tóth Attila
2010-03-25 20:11 ` Rob Kendrick
2010-03-25 20:34 ` Ed W
2010-03-25 20:41 ` RB [this message]
2010-03-25 21:08 ` Tom Hendrikx
2010-03-26 14:15 ` Brian Kroth
2010-03-26 15:19 ` Rob Kendrick
2010-03-27 13:11 ` Ed W
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