METHOD AND SYSTEM FOR SECURELY REQUESTING DOWNLOAD OF CONTENT TO A USER DEVICE FROM ANOTHER DEVICE

• US 20090100182A1
• Filed: 10/13/2007
• Published: 04/16/2009
• Est. Priority Date: 10/13/2007
• Status: Active Grant

• Current Assignee: DIRECTV, LLC (AT&T, Inc.)
• Original Assignee: The DIRECTV Group, Inc. (AT&T, Inc.)
• Inventors: Chaudhry, Kapil
• Granted Patent: US 7,953,872 B2
• Time in Patent Office: Days
• US Class Current: 709/229
• CPC Class Codes: G06F 15/16 Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs coordinating program control therefor G06F9/52; in regulating and control system G05B

Abstract

A method and system includes a first web service client generating a first message with first security portion and communicating the first message and first security portion to a second web service client. The second web service client generates a response to the first message at the second web service client when the first security portion is valid and communicates the response to the first web service. The second web service generates a user device request at the second web service when the first security portion is valid and communicates the user device request to a conditional access management center. The conditional access system generates a control word and communicates the control word to the user device. The conditional access system generates a status signal and communicates the status signal to the second web services client when a control word is sent to the user device. The second web service device generates a formatted response message from the first web services client to the second web services client in response to the status signal.

Claims

1. A method for opening a user device comprising

generating a first message with first security portion at a first web service client;

communicating the first message and first security portion to a second web service client;

when the first security portion is valid, generating a response to the first message at the second web service client;

communicating the response to the first web service client;

when the first security portion is valid, generating a user device request at the second web service client;

communicating the user device request to a conditional access management center;

generating a control word at the conditional access management center,

communicating the control word to the user device;

when a control word is sent to the user device, generating a status signal and communicating the status signal to the second web service client;

in response to the status signal generating a formatted response message from the second web service client to the first web service client.

2. A method as recited in claim 1 wherein the first security portion comprises a user device identification.

3. A method as recited in claim 2 wherein the user device identification comprises conditional access card identification.

4. A method as recited in claim 1 wherein the first security portion comprises a time stamp corresponding to a creation time of the first message.

5. A method as recited in claim 1 wherein the first security portion comprises a security signature.

6. A method as recited in claim 5 wherein the security signature comprises a message digest algorithm 5 signature.

7. A method as recited in claim 1 wherein the first security portion comprises a web service identifier identifying the second web service client.

8. A method as recited in claim 1 wherein the first web service client is disposed in a content processing system.

9. A method as recited in claim 1 wherein the second web service client comprises a remote booking web service.

10. A method as recited in claim 1 wherein the user device request is generated from the first security portion.

11. A method as recited in claim 1 wherein the user device request comprises a manufacturer identification of the user device.

12. A method as recited in claim 1 wherein the user device request comprises a command code for a recording function.

13. A method as recited in claim 1 wherein the user device request comprises a sequential request identifier for all requests from the second web service client.

14. A method as recited in claim 1 wherein the user device request comprises an expiration date.

15. A method as recited in claim 1 wherein the user device request comprises a method-for-recording identifier.

16. A method as recited in claim 15 wherein the method-for-recording identifier comprises a remote recording using a material identifier.

17. A method as recited in claim 15 wherein the method-for-recording identifier comprises a remote recording using a content identifier.

18. A method as recited in claim 15 wherein the method-for-recording identifier comprises a remote recording using a channel time duration.

19. A method as recited in claim 15 wherein the method-for-recording identifier comprises a remote recording using a content reference identifier.

20. A method as recited in claim 1 further comprising rejecting when the first message is older than a predetermined time.

21. A system comprising:

a first web service client generating a first message with first security portion and communicating the first message and first security portion to a second web service client;

said second web service client generating a response to the first message at the second web service client when the first security portion is valid and communicating the response to the first web service, said second web service generating a user device request at the second web service when the first security portion is valid and communicating the user device request to a conditional access management center;

said conditional access system generating a control word and communicating the control word to the user device, said conditional access system generating a status signal and communicating the status signal to the second web services client when a control word is sent to the user device; and

said second web service device generating a formatted response message from the first web services client to the second web services client in response to the status signal.

22. A system as recited in claim 21 wherein the user device comprises a satellite television set top box.

23. A system as recited in claim 21 wherein the first security portion comprises a user device identification.

24. A system as recited in claim 21 wherein the first security portion comprises a time stamp corresponding to a creation time of the first message.

25. A system as recited in claim 21 wherein the first security portion comprises a security signature.