[5034] in cryptography@c2.net mail archive
how secure is digital pulse radio?
daemon@ATHENA.MIT.EDU (Eugene Leitl)
Tue Jun 29 18:38:46 1999
From: Eugene Leitl <eugene.leitl@lrz.uni-muenchen.de>
Date: Tue, 29 Jun 1999 14:05:44 -0700 (PDT)
To: <cryptography@c2.net>
I assume you are aware of the forthcoming digital pulse radio
technology http://www.time-domain.com/technology.html
It is not exactly crypto, but uses ultra-wideband low-power (they
claim 10 miles with 500 uW) emissions and pseudo random codes to
shift the spike train encoding the information stream. It looks very
like white noise.
What is your estimate how difficult it would be to screen for such
communication channels, and how rapidly could one crack them (assuming
no further encryption of the traffic)?
-- Eugene Leitl
