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From: koontzd@phobos.lrmsc.loral.com (David Koontz )
Subject: Re: Clipper considered harmful [Restated and amplified]
Message-ID: <1993Apr26.145937.3570@wdl.loral.com>
Sender: news@wdl.loral.com
Organization: Loral Rolm Computer Systems  
References: <15469@optilink.COM> <1993Apr22.222016.25628@lehman.com> <15583@optilink.COM>
Date: Mon, 26 Apr 1993 14:59:37 GMT
Lines: 11

>Clipper also allows an extraordinary opportunity for the criminal to
>conceal use of super-encryption.  An automated full-system surveillance
>mechanism (quite feasible across radio bandwidth) which knows family key F,
>can validate Clipper wrappers and N:ESN associations, but it cannot reveal
>in realtime the use of super-encryption, unless it knows all unit keys,
>which we are being assured are only to be made available in two separate
>pieces, upon specific wiretap-like order.

The serial number will be in a 64 bit block, with a 34 bit filler.  Doesn't
take a lot to check to see if that is correct.

