Method for securing a transmission, associated system and mediation platform
First Claim
1. Method for securing a transmission between a system and at least one user having a terminal, the 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 method comprising the following steps 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 said first and at least one second 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.
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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.
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Citations
25 Claims
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1. Method for securing a transmission between a system and at least one user having a terminal, the 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 method comprising the following steps performed at the mediation platform, relatively to a user or group of users having terminals:
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determining one first and at least one second sets of values from said key, so that the knowledge of said first and at least one second 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Mediation platform connecting a broadcasting subsystem and a radiocommunication subsystem of a system arranged for performing a transmission to at least one user having a terminal, said transmission being ciphered and arranged for being deciphered by using a key, the mediation platform comprising, relatively to a user or group of users having terminals:
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means for determining one first and at least one second sets of values from said key, so that the knowledge of said first and at least one sets of values is required to retrieve the key; and
means for 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. - View Dependent Claims (12, 13, 14)
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15. Terminal comprising means for receiving a transmission from a system comprising a broadcasting subsystem and a radiocommunication subsystem each connected to a mediation platform, said transmission being ciphered, and means for deciphering said transmission by using a key, the terminal further comprising:
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means for receiving one first set of values from the broadcasting subsystem;
means for receiving at least one second set of values from the radiocommunication subsystem; and
means for retrieving said key from said first and at least one second sets of values. - View Dependent Claims (16, 17, 18)
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19. System comprising a broadcasting subsystem and a radiocommunication subsystem each connected to a mediation platform, the system being arranged for transmitting to at least one user having a terminal, said transmission being ciphered and arranged for being deciphered by using a key, the system further comprising, relatively to a user or group of users having terminals:
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means for determining one first and at least one second sets of values from said key, so that the knowledge of said first and at least one second sets of values is required to retrieve the key; and
means for 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. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification