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From: holland@CS.ColoState.EDU (douglas craig holland)
Subject: Re: Tempest
Sender: news@yuma.ACNS.ColoState.EDU (News Account)
Message-ID: <Apr25.063606.25541@yuma.ACNS.ColoState.EDU>
Date: Sun, 25 Apr 1993 06:36:06 GMT
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References: <1993Apr22.132638.19448@ringer.cs.utsa.edu> <1993Apr24.233742.26839@lehman.com> <1993Apr25.024032.26935@ringer.cs.utsa.edu>
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In article <1993Apr25.024032.26935@ringer.cs.utsa.edu> whughes@lonestar.utsa.edu (William W. Hughes) writes:
>In article <1993Apr24.233742.26839@lehman.com> pmetzger@snark.shearson.com (Perry E. Metzger) writes:
>>whughes@lonestar.utsa.edu (William W. Hughes) writes:
>>>Hell, just set up a spark jammer, or some other _very_ electrically-noisy
>>>device.
>>
>>As I've noted, you can likely get around that with a directional
>>sensor. Phased array systems could completely defeat this scheme.
>
>True, but the basic idea behind any communications security system is not
>to absolutely deny access, but to make access more expensive (in time,
>money, manpower) than it is worth.
>
Another idea: Use a laptop computer.  As mentioned earlier, the LCD screen
is a lot less noisy than a standard CRT, but since many laptops have power
supplies that run at 3 volts instead of 5, they would be considerably 
quieter.

Doug Holland


-- 
|  Doug Holland                | Anyone who tries to take away my freedom  |
|  holland@cs.colostate.edu    | of speech will have to pry it from my     |
|  PGP key available by E-mail | cold, dead lips!!                         |
