SECURITY DEVICE FOR PAY-TV RECEIVER DECODER

• US 20160007071A1
• Filed: 04/02/2013
• Published: 01/07/2016
• Est. Priority Date: 03/30/2012
• Status: Active Grant

• Current Assignee: Nagravision SA (Kudelski SA)
• Original Assignee: Nagravision SA (Kudelski SA)
• Inventors: BURCKARD, Antoine
• Granted Patent: US 9,686,580 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04N 21/4181 for conditional access
• CPC Class Codes: H04N 21/42684 Client identification by a unique number or address, e.g. serial number, MAC address, socket ID network arrangements, protocols or services for addressing or naming H04L61/00
• CPC Class Codes: H04N 21/4367 Establishing a secure communication between the client and a peripheral device or smart card
• CPC Class Codes: H04N 21/4623 Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message] arrangements for conditional access to broadcast information or to broadcast-related services H04H60/14
• CPC Class Codes: H04N 21/47211 for requesting pay-per-view content payment schemes payment architectures or payment protocols G06Q20/00, G07F
• CPC Class Codes: H04N 7/163 by receiver means only
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

The aim of the present invention is to ensure that a security module SC or CAM is used with an authorized receiver device. A security device for Pay-TV receiver decoder, in charge of processing the security messages and to extract the keys or rights from the security messages, this security device comprising a memory to store at least one reference identifier of the receiver/decoder, characterized in that, it further comprises a wireless reader to read a wireless tag containing a receiver/decoder identifier with which it is connected, and means to compare this identifier with the reference identifier, said security device modifying the processing of the security messages in function of the comparison result.

Claims

1. A system comprising:

a receiver/decoder for providing access to conditional access digital content;

a security device, connectable to the receiver/decoder; and

a wireless tag, the wireless tag being attached to the receiver/decoder;

the security device comprising;

a memory to store at least one identifier associated with the security device and at least one system key;

a first wireless transceiver at least to read an authorization message from the wireless tag; and

a processor configured to;

decrypt the authorization message using the system key;

compare the decrypted authorization message with the identifier associated with the security device; and

process at least one security message in order to extract at least one key or at least one right therefrom, said processing taking place depending on the result of said comparison;

wherein;

the authorization message is based at least on all or part of the identifier associated with the security device and encrypted under the system key.

2. The system according to claim 6, wherein the communications device is configured to read the identifier from the security device using the second transceiver or an infrared reader or a card reader.

3. The system according to claim 6, wherein the first and second wireless transceivers are configured to operate within a range of less than 25 cm from the wireless tag.

6. The system of claim 1, further comprising a communications device having a second wireless transceiver configured to write the authorization message to the wireless tag.

7. The system according to claim 6, wherein the first and second wireless transceivers are configured to operate within a range of less than 10 cm from the wireless tag.

4. A method for pairing a security device with a receiver/decoder, comprising:

reading an identifier associated with the security device by a communications device, the security device comprising a first wireless transceiver, the communication device comprising a second wireless transceiver, the security device being connectable to a receiver/decoder;

preparing an authorization message by the communications device, the authorization message being based at least on all or part of the identifier of the security device and being encrypted under a system key;

writing the authorization message to the wireless tag, the wireless tag being attached to the receiver/decoder;

reading by the security device the authorization message from the wireless tag;

decrypting the authorization message by the security device;

comparing the decrypted authorization message with the security device identifier; and

allowing or disallowing the pairing depending on the result of the comparison.

5. The method according to claim 4, wherein said reading of the security device identifier takes place between the first and second wireless transceivers, said writing of the authorization message being done by the second wireless transceiver and said reading of the authorization message being done by the first wireless transceiver.