On Jan 28, 2009, at 2:03 PM, Perry E. Metzger wrote:
There's a "Classified USB Cable for file transfer with Classified
PC"
I wonder what a "classified USB cable" is. Perhaps it's an
unclassified USB
cable with the little three-prong USB logo blacked out by the
censors.
I would imagine it is a tempest shielded cable, and appropriately
altered connectors.
That's probably a big part of it.
I commented earlier that $3200 seemed surprisingly cheap. One of the
articles on this claimed this was absurdly expensive - typical DoD
gold plating. Well ... the real price of a standard Blackberry is a
couple of hundred dollars, and put one in a room with a speaker phone
and listen to the famous "Blackberry buzz". Shielding these things,
even to avoid obvious interference, is *not* easy. Getting it to
Tempest specs must take some impressive engineering. For a non-mass-
market device with that kind of engineering, $3200 seems pretty cheap.
-- Jerry
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