System and method for authenticating components in wireless home entertainment system

• US 20070192488A1
• Filed: 02/14/2006
• Published: 08/16/2007
• Est. Priority Date: 02/14/2006
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Inventors: DaCosta, Behram
• Granted Patent: US 7,640,577 B2
• Time in Patent Office: Days
• US Class Current: 709/225
• CPC Class Codes: G06F 21/33 using certificates
• CPC Class Codes: G06F 2221/2129 Authenticate client device independently of the user
• CPC Class Codes: H04L 2463/061 applying further key derivation, e.g. deriving traffic keys from a pair-wise master key cryptographic mechanisms or cryptographic arrangements for generation of secret information including derivation or calculation of cryptographic keys or passwords H04L9/0861
• CPC Class Codes: H04L 63/18 using different networks or channels, e.g. using out of band channels cryptographic mechanisms or cryptographic arrangements for key distribution involving distinctive intermediate devices or communication paths H04L9/0827; cryptographic mechanisms or cryptographic arrangements for authentication using a plurality of channels H04L9/3215
• CPC Class Codes: H04W 12/041 Key generation or derivation
• CPC Class Codes: H04W 12/06 Authentication

Abstract

Configuration information is exchanged between a home entertainment system server and various wireless components by pushing a button on the server and a random button on a remote control device as it is pointed at the devices sought to be authenticated.

Claims

1. A home entertainment system, comprising:

at least one wireless system server having at least one communication system;

at least one wireless component having at least one communication system configured for communicating with the communication system of the server; and

a remote control device configured for communicating with the server and the component and generating a wireless signal, the wireless signal being used to generate an authentication signal, the authentication signal being used for authentication between the component and server.

2. The system of claim 1, wherein the server sends a signal representing the wireless signal to the component, the component also receiving the wireless signal from the remote control device, the component comparing the wireless signal to the signal from the server representing the wireless signal and if a match is found, determining that authentication exists between the server and component and otherwise not determining that authentication exists between the server and component.

3. The system of claim 2, wherein the server samples the wireless signal from the remote control device.

4. The system of claim 1, wherein the server includes at least one button and the authentication signal is generated from the wireless signal only if the button is pressed within a predetermined time of receiving the wireless signal from the remote control device.

5. The system of claim 1, wherein the wireless signal is associated with one and only one key on the remote control device, the key not being constrained to be predetermined.

6. The system of claim 1, wherein the server and component derive an encryption key from the wireless signal, the encryption key being used to encrypt authentication data between the server and component.

7. The system of claim 1, wherein the communication system is a power line communication (PLC) system.

8. The system of claim 1, wherein the communication system is an 802.11 system.

9. The system of claim 1, wherein the server is established by a set-top box receiver.

10. A method for authenticating a component in a home network with a server in the network, comprising:

pointing a remote control device at the server;

pressing a button indicating that authentication is impending, the button being on at least one of the server or the remote control device;

randomly selecting a button on the remote control device;

pressing the randomly selected button to generate a wireless signal;

pointing the remote control device at the component;

pressing the randomly selected button to generate the wireless signal;

from at least one of;

the server, or the component, sending a signal representing the wireless signal to the other of;

the server, or the component, which compares the wireless signal it received from the remote control device with the signal representing the wireless signal and if a match is found, determines that authentication exists between the server and component and otherwise does not determine that authentication exists between the server and component.

11. The method of claim 10, comprising sending an authentication request message along with the signal representing the wireless signal.

12. The method of claim 10, wherein the server and component communicate over a power line communication (PLC) system.

13. The method of claim 10, wherein the server and component communicate over a 802.11 system.

14. The method of claim 10, wherein the server is established by a set-top box receiver.

15. A method for authenticating a component in a home network with a server in the network, comprising:

pointing a remote control device at the server;

pressing a button indicating that authentication is impending, the button being on at least one of the server or the remote control device;

randomly selecting a button on the remote control device;

pressing the randomly selected button to generate a wireless signal;

at the server, deriving an encryption key from the wireless signal;

pointing the remote control device at the component;

pressing the randomly selected button to generate the wireless signal;

at the component, deriving the encryption key from the wireless signal; and

exchanging authentication information between the server and component, the authentication information being encrypted by the key.

16. The method of claim 15, wherein the server and component communicate over a power line communication (PLC) system.

17. The method of claim 15, wherein the server and component communicate over a 802.11 system.

18. The method of claim 15, wherein the server is established by a set-top box receiver.