[121227] in cryptography@c2.net mail archive
TextTell - 1983 - Encrypted Text Transmission
daemon@ATHENA.MIT.EDU (Nap van Zuuren)
Mon Apr 21 12:29:16 2008
From: "Nap van Zuuren" <nap.van.zuuren@pandora.be>
To: <cryptography@metzdowd.com>
Date: Sun, 20 Apr 2008 15:40:03 +0200
In my collection I have :
TextTell - 1983 - Encrypted Text Transmission via Acoustic Coupler to
Telephone mouthpiece ( for Transmission ) and Telephone receiver ( for
Reception )
Forbidden by the (then West) German BKA for showing at CeBIT 1983 fair
at Hannover
Photos on http://picasaweb.google.nl/nap210534/TextTell
Hope that someone can inform me on which algorithm and which keylenght
was used on these units.
T.I.A.
Nap van Zuuren - Gent - Belgium
nap.van.zuuren@pandora.be
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