VIDEOCRYPT encryption system by Fergusson

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Article #15973

#15973

From: Geoff Thomas
Date: Mon, 04 Jan 1993 02:47

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Anybody know how the VIDEOCRYPT encryption system works?
It is manufacted by in the UK by Fergusson Ltd. The
decoder has a smart card which needs to be inserted into
it for it to decode the video signals (audio is unscrambled).

How does it do the encryption? Is it based on wiggling sync
pulses? Or maybe on jumbling up video scan lines? Or maybe
something else?

Anybody know?

Cheers,
Geoff.

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Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!waikato.ac.nz!canterbury.ac.nz!cosc.canterbury.ac.nz!geoffrey
Newsgroups: sci.electronics,rec.video.satellite
Subject: VIDEOCRYPT encryption system by Fergusson
Message-ID: <C0B6Fx.74D@cantua.canterbury.ac.nz>
From: geoffrey@cosc.canterbury.ac.nz (Geoff Thomas)
Date: Mon, 4 Jan 1993 02:47:57 GMT
Organization: Computer Science,University of Canterbury,New Zealand
Nntp-Posting-Host: whio.canterbury.ac.nz
Lines: 15