Article View: sci.electronics
Article #16220Re: VIDEOCRYPT encryption system by Fergusson
From: Alex Novickis
Date: Tue, 05 Jan 1993 00:14
Date: Tue, 05 Jan 1993 00:14
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1534 bytes
In article <C0B6Fx.74D@cantua.canterbury.ac.nz> geoffrey@cosc.canterbury.ac.nz (Geoff Thomas) writes:
>
>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.
I don't know the specifics, but here's what I did to find out about
the ones we have in our area:
There are usually some patent #'s written on the bottom of the box.
These and a few hours at the patent office produced several hundreds
of pages of pretty much the exact "secrets" I was looking for.
--
Alex P. Novickis, Real Time systems demi-guru. (W) 408-862-4541
ALINK:alex.n (H) 415-691-0657
UUCP:{amdahl,claris,pyramid,sun,decwrl,well,ubvax,ames}!apn@apple.com,apn@nonvon
"I think... I think it's in my basement. Let me go upstairs and check"-Escher.
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Path: arc1-ca.pugleaf.net!sparky!uunet!stanford.edu!apple!apn From: apn@Apple.COM (Alex Novickis) Newsgroups: sci.electronics,rec.video.satellite Subject: Re: VIDEOCRYPT encryption system by Fergusson Message-ID: <76093@apple.apple.COM> Date: 5 Jan 93 00:14:53 GMT References: <C0B6Fx.74D@cantua.canterbury.ac.nz> Followup-To: sci.electronics Organization: Apple Computer Inc, Cupertino, CA Lines: 29