From: Scott Brickner <sjb@universe.digex.net>
Date: Thu, 4 Jan 1996 07:08:14 +0800
To: frantz@netcom.com (Bill Frantz)
Subject: Re: Guerilla Internet Service Providers (fwd)
In-Reply-To: <199601031815.KAA15424@netcom5.netcom.com>
Message-ID: <199601032143.QAA25385@universe.digex.net>
MIME-Version: 1.0
Content-Type: text/plain


Bill Frantz writes:
>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.)

Key management problems?  With someone across the street?  You gotta be
kidding.  If you can't memorize the key (say with the S/Key key-to-
phrase algorithm) and walk it across the street, write it on the back
of an envelope, walk it over, re-key, and burn it.