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Date: Tue, 26 Aug 1997 17:33:30 -0400 (EDT) From: John R Levine <johnl@iecc.com> To: Adam Shostack <adam@homeport.org> cc: cryptography@c2.net In-Reply-To: <199708261802.OAA24351@homeport.org> > Anyone know about the security for the DSS system? (A US satelite TV > system with 18" dishes). A buddy disconnected his for an extended > period, and on plugging it back in, got all the channels for about 5 > minutes. It is my impression that each receiver is addressable, and one of the channels is used to broadcast a stream of subscription info telling each receiver what it's subscribed to. The receivers default to receiving everything until their programming info comes around. (If they defaulted to receive nothing until programming info was received, they'd appear to the users to take 5 or 10 minutes to turn on, which would provoke a lot of trouble reports.) I think there are CATV boxes that do the same thing. Regards, John Levine, johnl@iecc.com, Primary Perpetrator of "The Internet for Dummies", Information Superhighwayman wanna-be, http://iecc.com/johnl, Sewer Commissioner Finger for PGP key, f'print = 3A 5B D0 3F D9 A0 6A A4 2D AC 1E 9E A6 36 A3 47
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