Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!rutgers!att!cbnews!military
From: s32822l@kaira.hut.fi (Ari J. Joki (OH6DJ))
Newsgroups: sci.military
Subject: Re: "Identify-Friend-or-Foe" questions
Message-ID: <12758@cbnews.ATT.COM>
Date: 4 Jan 90 04:24:45 GMT
References: <12566@cbnews.ATT.COM> <12598@cbnews.ATT.COM>
Sender: military@cbnews.ATT.COM
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From: s32822l@kaira.hut.fi (Ari J. Joki (OH6DJ))
In article <12598@cbnews.ATT.COM> sampson@attctc.Dallas.TX.US (Steve Sampson) writes:
>
>> 2. IFF answers with its signature whenever someone else broadcasts a query.
>>        A missile could be equipped with a query-broadcaster and then
>>        home in on the answer.
>
>The subject is classified.
>
(Several paragraphs deleted)
>
>...  IFF is a crypto secure system.  ...
>

This is to say that in a crisis situation the military is going to switch 
from the present system outlined above to a system where queries and responses
have some kind of cryptographic authentication. At least that is how I read
it and how I'd do it.

Yours, AJJ.