[10552] in cryptography@c2.net mail archive
Re: Information Leakage from Optical Emanations
daemon@ATHENA.MIT.EDU (R. A. Hettinga)
Tue Mar 5 18:20:31 2002
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In-Reply-To: <200203052232.g25MWOK29335@twister.applied-math.org>
Date: Tue, 5 Mar 2002 18:13:59 -0500
To: cryptography@wasabisystems.com
From: "R. A. Hettinga" <rah@shipwright.com>
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Wherein someone discovers that one can do power analysis attacks just by
watching der Blinkenlighten.
At 3:32 PM -0700 on 3/5/02, Joe Loughry wrote:
> LED status indicators on data communication equipment,
> under certain conditions, are shown to carry a modulated optical
> signal that is significantly correlated with information being
> processed by the device.
Quick. Everybody disconnect those pretty blue LEDs on all your NCipher
boxes... :-).
Cheers,
RAH
--
-----------------
R. A. Hettinga <mailto: rah@ibuc.com>
The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
44 Farquhar Street, Boston, MA 02131 USA
"... however it may deserve respect for its usefulness and antiquity,
[predicting the end of the world] has not been found agreeable to
experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'
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