Article View: sci.crypt
Article #1325Re: Encrypted phones, keys, taps, ...
From: Nathaniel Polish
Date: Sat, 07 Nov 1992 18:08
Date: Sat, 07 Nov 1992 18:08
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1133 bytes
It was suggested that a human listener would be required to determine when the scrambled speech was "cleared" because recognision technology is not up to it. This is just plain false. The spectral characteristics of clear versus scrambled speech are easily distinguished. Scrambled speech is useful when the opponent does not have much time available to unscramble -- as is the case in battlefield communications. The value of the information declines so fast that unscrambling is often not worth the trouble. Nathaniel Polish
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!pmafire!news.dell.com!swrinde!zaphod.mps.ohio-state.edu!rpi!think.com!spool.mu.edu!yale.edu!yale!gumby!destroyer!sol.ctr.columbia.edu!news.cs.columbia.edu!polish From: polish@cs.columbia.edu (Nathaniel Polish) Subject: Re: Encrypted phones, keys, taps, ... Message-ID: <BxCyDv.8FL@cs.columbia.edu> Sender: news@cs.columbia.edu (The Daily News) Organization: Columbia University Department of Computer Science References: <1992Nov6.012330.4470@shearson.com> <1992Nov7.045122.15675@netcom.com> Date: Sat, 7 Nov 1992 18:08:19 GMT Lines: 10