Encrypted/scrambled information remote management control access having broadcasting centre transmitting control message security processor and exchange action instructions/replies subjected local security protocol inhibiting local viewing.

摘要

The remote management protocol has a broadcasting centre having access control to scrambled data through a descrambling terminal and an access control card or module with a security processor. The broadcasting centre transmits (A) to a receiver set or security processor a control message including input template fields, control applications data and a digital signal. The exchange of action instructions and replies between the terminal and the security processor are subjected (B) to a local security protocol inhibiting any local viewing in the security process and terminal.