[45489] in cryptography@c2.net mail archive
Re: Did Hezbollah use SIGINT against Israel?
daemon@ATHENA.MIT.EDU (Travis H.)
Fri Sep 22 09:39:25 2006
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Thu, 21 Sep 2006 23:04:34 -0500
From: "Travis H." <solinym@gmail.com>
To: "Leichter, Jerry" <leichter_jerrold@emc.com>
Cc: "Steven M. Bellovin" <smb@cs.columbia.edu>,
cryptography@metzdowd.com
In-Reply-To: <Pine.SOL.4.61.0609201912400.12287@mental>
On 9/20/06, Leichter, Jerry <leichter_jerrold@emc.com> wrote:
> Newspaper reports have claimed that many troops were sent into the
> field with old equipment - including in particular 10+-year-old
> communications equipment.
The Single Channel Ground and Airborne Radio System was designed in the 80's:
http://www.fas.org/man/dod-101/sys/land/sincgars.htm
I don't know the hop frequency, but it's probably smaller than modern
standards (could
possibly be followed with real-time tracking), it probably uses a
manually-entered seed to
generate a hop sequence, the PRNG that stretches the seed is probably
not secure any
more, and the input space is probably searchable by now in a
reasonable amount of time.
Further, once broken with some expensive hardware (maybe a
custom-designed SIGINT SDR), they could program much cheaper units to
follow the sequence until the Israelis
re-keyed.
Just my total guess.
--
"On the Internet noone knows you're a dog - except Bruce Schneier."
Unix "guru" for rent or hire -><- http://www.lightconsulting.com/~travis/
GPG fingerprint: 9D3F 395A DAC5 5CCC 9066 151D 0A6B 4098 0C55 1484
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