From: lcottrell@popmail.ucsd.edu (Lance Cottrell)
Date: Thu, 14 Apr 94 23:07:58 PDT
To: cypherpunks@toad.com
Subject: Any cypherpunks building encrypted phone?
Message-ID: <199404150607.XAA04251@ucsd.edu>
MIME-Version: 1.0
Content-Type: text/plain


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>Subject: Any cypherpunks building encrypted phone?
>
>        Hello everyone!  I'd like to know if anyone on the list has made
>any attempt to construct a true encrypted phone, something at the
>level of the AT&T DES phone.  I think that it ought not to be too
>difficult to build a couple, using existing modems and basic hardware
>design.  If all the commercial phones are going to be Clipper-based,
>we'll have to build the real ones ourselves.
>
>        Lady Ada, Queen of Engines

I am working on that exact problem. It is not really that trivial. The
encryption has to handle a lot of data real time. I have a license
agreement for IDEA and am working on RSA. I am thinking of using tripple
DES rather than IDEA because of the cost of the IDEA license.

Two questions. One: Does anyone know of a good source of DES chips?
Two: How much would you pay for a good encrypted phone?
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--------------------------------------------------
Lance Cottrell  who does not speak for CASS/UCSD
loki@nately.ucsd.edu
PGP 2.3 key available by finger or server.

"Love is a snowmobile racing across the tundra.  Suddenly
it flips over, pinning you underneath.  At night the ice
weasels come."
                        --Nietzsche