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From: derek@coco2.albany.edu (Cinderella Man)
Newsgroups: comp.sys.mac.misc
Subject: Re: APPLE & FCC PETITION (PRESS RELEASE)
Message-ID: <1991Feb5.201558.28791@sarah.albany.edu>
Date: 5 Feb 91 20:15:58 GMT
References: <1991Feb2.235110.17551@cs.uiuc.edu> <1991Feb4.184339.24202@csn.org> <1991Feb4.233214.486@cs.uiuc.edu> <1991Feb5.182303.11214@MDI.COM>
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Reply-To: derek@leah.albany.edu (Cinderella Man)
Organization: Computin' Fools, SUNY Albany
Lines: 31

In article <1991Feb5.182303.11214@MDI.COM> jackb@MDI.COM (Jack Brindle) writes:
>In article <1991Feb4.233214.486@cs.uiuc.edu> gillies@cs.uiuc.edu (Don Gillies)
writes:
>>It is unlikely that a radio network with encryption will have
>>acceptable performance.  It is unlikely that a radio network without
>>encryption will have acceptable security.

>I disagree completely with this point. There are many techniques widely...
[some text deleted]
>The other thing to remember is that even Ethernet is not fully secure. If
>someone really wants at your data, they could throw enough resources at
>decoding the electromagnetic field given off by the ethernet cable that
>they could get anything that you send across your network. And that data is
>almost never encrypted. 

       I agree completely.  It's the simplest thing in the world just
to lock a vampire tap onto an existing Ethernet cable; one doesn't even
have to interrupt service to do it.  If no one's watching, you'll never
know it happened.  It's the complexity of the packet and timing algorithms
themselves that keeps the average spook from reading your mail; if someone
from the government wanted to, there's nothing to stop them, just as there
isn't any way to stop someone from opening your mail or tapping your phone
lines.  The same will apply to radio frequency transmissions, which are
going to have to have some really well-written data software to deal
with reflections in the signal, overlap, blah blah blah...

> - Jack Brindle.

                                                Derek L.
--
I WANT FIBRE OPTICS!