From: andr0id@midwest.net (Jason Rentz)
Date: Fri, 5 Jan 1996 02:52:03 +0800
To: cypherpunks@toad.com
Subject: Re: Guerilla Internet Service Providers (fwd)
Message-ID: <199601041743.LAA25788@cdale1.midwest.net>
MIME-Version: 1.0
Content-Type: text/plain


Previous exchanges deleted...
>
>With a tightly focused beam (light is easy, I don't know about lower
>frequencies), you can prevent interception except by very obvious physical
>devices.  (e.g. Someone in a cherry picker truck.)  You may be able to
>avoid the need to encrypt the link (and all the paranoia about key
>management, advances in factoring etc. that that implies.)
>
>Bill

The problem with this comes when you start creating links between much
taller buildings like in San Fran.  Any give building over 30 stories might
sway a foot or so at any given time.  Combine that with the other building
and you might get a few feet of movement. (movement not including during an
earthquake)  :)

(andr0id@midwest.net  callsign: N9XLM)
( Computer Consulting & Management   )
(P.O. Box 421  Cambria, IL 62915-0421)

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