Method for securing a transmission, associated system and mediation platform
First Claim
1. A communication terminal for use with a hybrid communication system comprising a broadcasting subsystem and a radiocommunication subsystem, the terminal comprising:
- a broadcasting subsystem interface operable to receive signals from the broadcasting subsystem;
a radiocommunication subsystem interface operable to receive signals from the radiocommunication subsystem; and
a processor operable to process signals received by the broadcasting subsystem interface and the radiocommunication subsystem interface;
the broadcasting subsystem interface and the radiocommunication interface together being operable to receive at least one first value and at least one second value; and
the processor being operable;
to process the at least one first value and the at least one second value to determine at least one key; and
to decipher at least one broadcast channel using the determined key.
2 Assignments
0 Petitions
Accused Products
Abstract
In a system comprising a broadcasting subsystem and a radiocommunication subsystem each connected to a mediation platform, said transmission being ciphered and arranged for being deciphered by using a key, the following steps are performed at the mediation platform, relatively to a user or group of users having terminals: determining one first and at least one second sets of values from said key, so that the knowledge of all the determined sets of values is required to retrieve the key; and controlling the broadcasting subsystem so that it transmits the first set of values to the user or group of users and the radiocommunication subsystem so that it transmits the at least one second set of values to the user or group of users.
8 Citations
19 Claims
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1. A communication terminal for use with a hybrid communication system comprising a broadcasting subsystem and a radiocommunication subsystem, the terminal comprising:
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a broadcasting subsystem interface operable to receive signals from the broadcasting subsystem; a radiocommunication subsystem interface operable to receive signals from the radiocommunication subsystem; and a processor operable to process signals received by the broadcasting subsystem interface and the radiocommunication subsystem interface;
the broadcasting subsystem interface and the radiocommunication interface together being operable to receive at least one first value and at least one second value; and
the processor being operable;to process the at least one first value and the at least one second value to determine at least one key; and to decipher at least one broadcast channel using the determined key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a communication terminal for communication with a hybrid communication system comprising a broadcasting subsystem and a radiocommunication subsystem, the method comprising:
receiving at least one first value and at least one second value; and
processing the at least one first value and the at least one second value to determine at least one key; and
deciphering at least one broadcast channel using the determined key.- View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
Specification