Providing content in a communication system

• US 20050286721A1
• Filed: 06/29/2004
• Published: 12/29/2005
• Est. Priority Date: 06/29/2004
• Status: Active Grant

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Lamberg, Samu
• Granted Patent: US 7,765,404 B2
• Time in Patent Office: Days
• US Class Current: 380/270
• CPC Class Codes: G06F 21/1063 Personalisation
• CPC Class Codes: H04L 2463/101 applying security measures for digital rights management data processing systems or methods, specially adapted for commerce, e.g. marketing, shopping, billing, auctions or e-commerce G06Q30/00
• CPC Class Codes: H04L 63/104 Grouping of entities
• CPC Class Codes: H04L 63/205 involving negotiation or determination of the one or more network security mechanisms to be used, e.g. by negotiation between the client and the server or between peers or by selection according to the capabilities of the entities involved negotiation of communication capabilities H04L69/24
• CPC Class Codes: H04W 12/03 Protecting confidentiality, e.g. by encryption
• CPC Class Codes: H04W 12/06 Authentication

Abstract

The present invention relates to a method for providing content in a communication system. The method comprises encoding content to a first part and a second part. Furthermore, the method comprises protecting the second part of the content against unauthorised use. Furthermore, the method comprises transmitting the content to user equipment associated with an identity module. The present invention relates also to a method for obtaining content in user equipment in a communication system. The method comprises receiving content encoded to a first layer and a protected second layer. Furthermore, the method comprises requesting for opening the protection of the second layer, receiving opening means and opening the protection of the second layer using the opening means interacting with an identity module associated with the user equipment. Furthermore, a network element and user equipment are configured to execute the method.

Claims

1. A method for providing content in a communication system, the method comprising:

encoding content to a first layer and a second layer;

protecting the second layer of the content against unauthorised use; and

transmitting the content to user equipment associated with an identity module.

2. A method according to claim 1, wherein the step of encoding the content comprises encoding the content according to user equipment capabilities based on capabilities of the user equipment and/or user preferences of the user equipment.

3. A method according to claim 1, wherein the step of protecting comprises encrypting the second layer.

4. A method according to claim 3, further comprising requesting an authentication code comprising a challenge and a response.

5. A method according to claim 4, wherein the step of encrypting comprises encrypting the second layer using the response as an encryption key.

6. A method according to claim 1, wherein the step of transmitting comprises transmitting the content by means of a multimedia messaging service.

7. A method for obtaining content in user equipment in a communication system, the method comprising:

receiving content encoded to a first layer and a protected second layer;

requesting for opening the protection of the second layer;

receiving opening means; and

opening the protection of the second layer using the opening means interacting with an identity module associated with the user equipment.

8. A method according to claim 7, wherein the second layer is protected by encryption.

9. A method according to claim 8, wherein the step of receiving opening means comprises receiving decrypting means.

10. A method according to claim 9, wherein the step of receiving decrypting means comprises receiving a challenge corresponding to a response used as an encryption key for encrypting the second layer.

11. A method according to claim 10, wherein the step of opening the protection comprises submitting the challenge to the identity module and receiving a response from the identity module.

12. A method according to claim 7, wherein the step of opening the protection comprises opening the second layer to a volatile memory of the user equipment.

13. A method according to claim 7, further comprising denying forwarding the content service in an unprotected state.

14. A method according to claim 7, further comprising allowing forwarding the content service in a protected state.

15. A method according to claim 7, further comprising receiving information on the content.

16. A method according to claim 15, wherein the step of receiving the information comprises receiving information on a price of opening the protection of the second layer.

17. A method according to claim 15, further comprising accepting or withdrawing a request for opening the protection in response to the information on the content.

18. A method according to claim 7, wherein the step of receiving the content comprises receiving a multimedia messaging service message in mobile user equipment.

19. A computer program embodied on a computer-readable medium, said computer program configured to control a computer to perform the steps of:

encoding content to a first layer and a second layer;

protecting the second layer of the content against unauthorised use; and

transmitting the content to user equipment associated with an identity module.

20. A computer program embodied on a computer-readable medium, said computer program configured to control a computer to perform the steps of:

receiving content encoded to a first layer and a protected second layer;

requesting for opening the protection of the second layer;

receiving opening means; and

opening the protection of the second layer using the opening means interacting with an identity module associated with the user equipment.

21. A network element in a communication system comprising:

encoding means for encoding content to a first layer and second layer;

protecting means for protecting the second layer of the content against unauthorised use; and

transmitter for transmitting the content to user equipment associated with an identity module.

22. A network element in a communication system configured to:

encode content to a first layer and a second layer;

protect the second layer of the content against unauthorised use; and

transmit the content to a user equipment associated with an identity module.

23. A network element according to claim 22, configured to encode the content according to capabilities of the user equipment and/or user preferences of the user equipment.

24. A network element according to claim 22, configured to protect the second layer by encryption.

25. A network element according to claim 24, configured to request an authentication code comprising a challenge and a response.

26. A network element according to claim 25, configured to encrypt the second layer using the response as an encryption key.

27. User equipment comprising:

receiver for receiving content encoded to a first layer and a protected second layer; and

requesting means for requesting for opening the protection of the second layer;

the user equipment associated with an identity module; and

the receiver being configured to subsequently receive opening means responsive to the requesting, the opening means interacting with the identity module associated with the user equipment.

28. User equipment configured to:

receive content encoded to a first layer and a protected second layer;

request for opening the second layer;

receive opening means; and

open the protection of the second layer using the opening means interacting with an identity module associated with the user equipment.

29. User equipment according to claim 28, configured to receive a challenge corresponding to a response used as an encryption key for protecting the second layer.

30. User equipment according to claim 29, configured to submit the challenge to the identity module and to receive a response from the identity module.

31. User equipment according to claim 28, configured to open the second layer to a volatile memory of the user equipment.

32. User equipment according to claim 28, configured to deny forwarding the content service in an unprotected state.

33. User equipment according to claim 28, configured to allow forwarding the content service in a protected state.

34. User equipment according to claim 28, configured to accept or withdraw a request for opening the protection of the second layer in response to information on the content service received in the user equipment.

35. User equipment according to claim 28, comprising a mobile station.

36. User equipment according to claim 28, configured to receive a message transmitted by means of a multimedia messaging service.