Monitoring usage of encrypted broadcast services

Details Monitoring usage of encrypted broadcast services Monitoring usage of encrypted broadcast services

H - Electricity

04

W

H04W 4/06 (2009.01) H04W 92/08 (2009.01) H04N 7/167 (2006.01) H04N 7/173 (2006.01)

Patent

CA 2670243

The invention provides a method and system for monitoring usage of an encrypted broadcast service, such as an encrypted television program, in a secure client module such as a SIM card. An encrypted entitlement control message is received from a head-end system via the intermediary of a client device. A service identifier indicative of the encrypted broadcast service is obtained from the decrypted entitlement control message and, in dependence of the decrypted entitlement control message, status data being indicative of a status of the broadcast service is generated. The service identifier and the status data are stored in a memory of said secure client module and can be transmitted to an external server.

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