Digital rights management user data transfer

• US 20060021056A1
• Filed: 06/30/2004
• Published: 01/26/2006
• Est. Priority Date: 06/30/2004
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Koppen, Eckhart
• Application Number:
  US10/883,359
• Publication Number:
  US 20060021056A1
• Time in Patent Office: Days
• US Class Current: 726/26
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: H04N 2005/91364 the video signal being scrambled
• CPC Class Codes: H04N 21/2541 Rights Management protecting software against unauthorised usage in a vending or licensing environment G06F21/10; security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/4405 involving video stream decryption
• CPC Class Codes: H04N 21/4408 involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A method, device, and system use a transfer module that is distributed and used in a controlled manner. This transfer module has sufficient access rights to de-crypt and re-encrypt content to perform the unbinding and binding operations needed to transfer content from one terminal to another. Assuming a back-up copy of relevant data is kept by the user, the back-up copy is encrypted with a key of a trusted party. The encrypted data can be transferred to a new device. The corresponding decryption key is transferred from the trusted party to the new device along with the transfer module.

Claims

1. A method of transferring data subject to digital rights management limitations, the method comprising:

obtaining data subject to digital rights management limitations from an original terminal at a replacement terminal;

obtaining a transfer module at the replacement terminal from a trusted source;

loading the transfer module onto the replacement terminal;

decrypting the data subject to digital rights management limitations using a key provided by the transfer module; and

encrypting the data subject to digital rights management limitations.

2. The method of claim 1, wherein obtaining data subject to digital rights management limitations from an original terminal at a replacement terminal comprises:

obtaining a backup copy of data subject to digital rights management limitations from an original terminal; and

communicating the backup copy to a replacement terminal.

3. The method of claim 2, the backup copy is provided by a user of the original terminal.

4. The method of claim 1, wherein the data subject to digital rights management limitations comprises content and license data files.

5. The method of claim 1, wherein the data subject to digital rights management limitations is encrypted using a public key of a public/private key pair.

6. The method of claim 1, wherein loading the transfer module onto the replacement terminal comprises communicating with a trusted entity which sends the transfer module to the replacement terminal.

7. The method of claim 1, wherein the data subject to digital rights management limitations is encrypted directly.

8. The method of claim 1, wherein the data subject to digital rights management limitations is located in a rights database.

11. The device of claim 10, wherein the digital rights management user data rights database maintains a backup copy of data subject to the digital rights management limitations from an original device.

9. A device that transfers data subject to digital rights management limitations, the device comprising:

a digital rights management user data transfer module that handles the transfer of user data subject to the digital rights management limitations; and

a digital rights management rights server that manages rights stored on the device by decrypting the data subject to digital rights management limitations using a key from the digital rights management user data transfer module and encrypting the data subject to digital rights management limitations.

10. The device of claim 9, further comprising a digital rights management user data rights database that transports data subject to the digital rights management limitations to the device.

12. The device of claim 9, wherein the digital rights management user data transfer module is communicated from a trusted entity and loaded on the device.

13. The device of claim 9, wherein the data subject to digital rights management limitations is encrypted directly.

17. The system of claim 9, wherein the data subject to digital rights management limitations is encrypted directly.

14. A system for transferring data subject to digital rights management limitations, the system comprising:

an original terminal having a first rights database containing data subject to digital rights management limitations;

a replacement terminal having an encrypted rights database and a second rights database; and

a trusted entity that communicates a transfer module to the replacement terminal, the transfer module providing a key to enable the replacement terminal to decrypt data subject to digital rights management limitations communicated from the original terminal.

15. The system of claim 14, further comprising a user data rights database that transports data subject to the digital rights management limitations from the original terminal to the replacement terminal.

16. The system of claim 15, wherein the user data rights database maintains a backup copy of data subject to the digital rights management limitations from the original terminal.

18. The system of claim 14, wherein the transfer module is communicated as part of an initialization procedure.

19. The system of claim 14, wherein the original terminal and the replacement terminal are cell phones.

20. The system of claim 14, further comprising a rights server that manages rights stored on the replacement terminal.

21. A transfer module configured to facilitate communication of data subject to digital rights management limitations, the transfer module comprising:

computer code including identification information; and

a key for decrypting or encrypting data subject to digital rights management limitations on a first terminal, wherein the data is provided, by a second terminal;

wherein the transfer module is loadable onto the second terminal from a trusted source.