From: Brian D Williams <talon57@well.sf.ca.us>
Date: Mon, 14 Feb 94 09:01:28 PST
To: cypherpunks@toad.com
Subject: tracking contacts with clipper
Message-ID: <199402141659.IAA29724@well.sf.ca.us>
MIME-Version: 1.0
Content-Type: text/plain



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Tim May notes;

>This is an important point, which I've seen mentioned a few times
>over the past 10 months, but not given nearly enough attention. To
>wit, if Clipjack phones are ever used by dissidents, subversives,
>Cypherpunks, etc., then the key block that goes out with every
>call--from both ends of course--will make recording the identities
>of both parties trivial.

 I agree with Tim whole-heartedly on this one. If the NSA gets it's
much desired "Digital Telephony Initiative" passed it will be a
trivial matter both politically and technologicly to intercept and
record all clipper key block transactions. The ability of the NSA
to do this, and the usefullness of this kind of traffic analysis is
left as an exercise for the reader.


Brian Williams
Extropian
Cypherpatriot

"Cryptocosmology: Sufficently advanced comunication is
                  indistinguishable from noise." --Steve Witham
 
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