Method for providing multimedia files and terminal therefor

• US 20020076051A1
• Filed: 12/20/2000
• Published: 06/20/2002
• Est. Priority Date: 12/20/2000
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Nii, Naoaki
• Granted Patent: US 7,463,738 B2
• Time in Patent Office: Days
• US Class Current: 380/232
• 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: G06F 2221/2135 Metering
• CPC Class Codes: G06F 2221/2153 Using hardware token as a secondary aspect
• CPC Class Codes: G06Q 20/367 involving electronic purses or money safes

Abstract

A method of and a system for securely distributing data files to a user. A first key is encrypted using a second key. The encrypted first key is stored on an integrated circuit card that is associated with the user. The integrated circuit card is provided to the user. Data files are encrypted using the first key to get an encrypted data file at a first party. The encryption parameters are exchanged between the first party and integrated circuit card.

Claims

1. A method of securely distributing a data file to a user, the method comprising the steps of:

encrypting a first key using a second key, to provide an encrypted first key;

storing the encrypted first key on an integrated circuit card at a first party;

providing the integrated circuit card to the user;

encrypting the data file using the first key, to result in an encrypted data file at the first party; and

distributing the encrypted file to a second party for delivery of the encrypted data file from the second party to a terminal associated with the user for downloading of the data file from the second party using the integrated circuit card.

2. The method of claim 1, further comprising the step of storing the encrypted data file on a medium at the terminal.

3. The method of claim 2, further comprising the steps of:

coupling the integrated circuit card to the terminal;

decrypting the first encrypted key with the second key in the terminal; and

in response to a request for decryption of the encrypted data file, decrypting the encrypted data file using the decrypted first key in the terminal.

4. The method of claim 1, wherein the data file comprises a multimedia file.

5. The method of claim 1, wherein the first party comprises a publisher of the data file.

6. The method of claim 1, wherein the second party comprises a distributor of the data file.

7. The method of claim 1, wherein the terminal comprises a wireless terminal for multimedia data.

33. The integrated circuit card as claimed in claim 31, wherein the index includes an identification of a wireless terminal.

8. A system for securely distributing at least one data file, the system comprising:

a first party for issuing the data file and a first integrated circuit card, wherein the first party is coupled with a second integrated circuit card;

a second party for distributing the issued data file, wherein the second party is coupled with a third integrated circuit card; and

a third party for presenting the distributed data file, wherein the third party is coupled with the first integrated circuit card.

9. The system as claimed in claim 8, further comprising an administrator for issuing the second and third integrated circuit cards.

10. The system as claimed in claim 8, further comprising a distribution channel between either the first party and the second party or the second party and the third party.

11. The system as claimed in claim 8, wherein the first party comprises a publisher of the data file.

12. The system as claimed in claim 8, wherein the second party comprises a distributor of the data file.

13. The system as claimed in claim 8, wherein the second party comprises a wireless kiosk.

14. The system as claimed in claim 8, wherein the third party comprises a wireless terminal.

16. The method as claimed in claim 15, further comprising steps of:

issuing the integrated circuit card; and

transferring the data file between an issuing party and a second party, wherein the transferred data file corresponds with the index stored on the integrated circuit card.

17. The method as claimed claim 15, further comprising the steps of:

transmitting the data file from a distribution party to a user;

receiving the transferred data file at the user; and

in response to either the index of the received data file or a source of the data file corresponding with the index stored on an integrated circuit card of the user, storing the received data file on a terminal of the user.

18. The method as claimed in claim 15, further comprising the step of distributing the integrated circuit card, including an identity of a source, to the associated party.

19. The method as claimed in claim 15, further comprising the steps of:

coupling the integrated circuit card to a wireless terminal of the party;

sending the associated index to a source of the data file;

checking the sent index for correspondence with an index stored on an integrated circuit card of the source; and

in response to the sent index corresponding with the index stored on the integrated circuit card of the source, delivering the data file to the wireless terminal of the party.

20. The method as claimed in claim 19, wherein the step of delivering comprises storing the delivered data file on a medium at the wireless terminal.

21. The method as claimed claim 15, further comprising the step of synchronizing an index stored on a computer, which communicates with a wireless terminal associated with the integrated circuit card, with the index of the integrated circuit card.

22. The method as claimed in claim 15, further comprising the steps of:

downloading the data file to a wireless terminal;

acknowledging the downloaded data file; and

storing the acknowledged data file on the integrated circuit card of a distributor.

23. The method as claimed in claim 15, further comprising the steps of:

downloading the data file to a wireless terminal; and

in response to an index of the data file corresponding with the index of the integrated circuit card, accessing the downloaded data file.

24. The method as claimed in claim 15, further comprising the steps of:

establishing a wireless link between a recipient terminal having an index and a sender terminal having an index;

verifying whether the index of the recipient terminal includes a publisher included in the index of the sender terminal; and

in response to the index of the recipient terminal including the publisher included in the index of the sender terminal, transferring the data file from the sender terminal to the recipient terminal.

25. The method as claimed in claim 15, wherein the index includes a usage meter for the data file.

26. The method as claimed in claim 15, wherein the index includes a price for the data file.

27. The method as claimed in claim 15, wherein the index includes a geographic area to which the data file may be distributed.

29. The wireless terminal as claimed in claim 28, wherein the wireless module includes an antenna and a transceiver.

30. The wireless terminal as claimed in claim 28, wherein the secure module includes a decryption module for obtaining the first and second keys and decrypting the second key and the secure data, and a decoding module.

15. A method of monitoring a securely distributed data file, the method comprising the steps of:

storing at least one index on an integrated circuit card; and

associating the index with the data file, wherein the integrated circuit card is associated with a party.

28. A wireless terminal for receiving secure data in a communication network, the wireless terminal comprising:

a wireless module for receiving the secure data from a data source;

an integrated circuit card interface for coupling an integrated circuit card to the wireless terminal;

a storage device connected to the wireless module for storing the received secure data;

a secure module including a first key, the secure module connected to the integrated circuit card interface and the storage device for obtaining a second key from the coupled integrated circuit card and, in response to a request, decrypting the received secure data with the second key; and

an output device connected to the secure module for presenting the decrypted data.

31. An integrated circuit card for storing an encrypted key for decryption of an encrypted data file, the integrated circuit card adapted to be coupled to a wireless terminal, the integrated circuit card comprising:

an interface for coupling the integrated circuit card to the wireless terminal;

a storage device for storing the encrypted key and at least one index; and

a processor for processing data between the interface and the storage.

32. The integrated circuit card as claimed in claim 31, wherein the index authenticates the terminal to generate a new index.

34. The integrated circuit card as claimed in claim 31, wherein the index includes an identification of a user.

35. The integrated circuit card as claimed in claim 31, wherein the index includes an identification of the data file.

36. The integrated circuit card as claimed in claim 31, wherein the index includes a user profile.

37. The integrated circuit card as claimed in claim 31, wherein the index controls access to the data file.

38. The integrated circuit card as claimed in claim 31, wherein the index includes a usage meter for the data file.

39. The integrated circuit card as claimed in claim 31, wherein the index includes an operation meter for the wireless terminal.

40. The integrated circuit card as claimed in claim 31, wherein the storage unit includes a data memory.

41. A method of billing for a securely distributed data file, the method comprising the steps of:

encrypting a first key using a second key, to provide an encrypted first key;

storing the encrypted first key on an integrated circuit card at a first party;

providing the integrated circuit card to the user;

encrypting the data file using the first key, to result in an encrypted data file at the first party;

distributing the encrypted file to a second party for delivery of the encrypted data file from the second party to a terminal associated with the user for downloading of the data file from the second party using the integrated circuit card; and

updating a value of delivery parameters of the parties.

42. The method as claimed in claim 41, wherein the delivery parameters include one of a specific multimedia file, a group of multimedia files, a category of multimedia files, a maximum number of multimedia files, and a maximum value of multimedia files.

43. The method as claimed in claim 41, further comprising the step of billing at least one party according to the delivery parameters.

44. A method of advertising in a securely distributed data file, the method comprising the steps of:

encrypting a first key using a second key, to provide in an encrypted first key;

storing the encrypted first key on an integrated circuit card at a first party;

providing the integrated circuit card to a user;

encrypting the data file using the first key, to result in an encrypted data file at the first party;

distributing the encrypted file to a second party for delivery of the encrypted data file from the second party to a terminal associated with the user for downloading of the data file from the second party using the integrated circuit card; and

connecting a distribution label to the securely distributed data file for visual identification of a desired effect.

45. A method of controlling access to a distributor in a multi-distributor environment, the method comprising the steps of:

encrypting a first key using a second key, to provide in an encrypted first key;

storing the encrypted first key on an integrated circuit card at a first party;

providing the integrated circuit card to a user;

encrypting a data file using the first key, to result in an encrypted data file at the first party;

distributing the encrypted file to a second party for delivery of the encrypted data file from the second party to a terminal associated with the user for downloading of the data file from the second party using the integrated circuit card, wherein a validity value of the integrated circuit card is checked at the second party; and

dividing rights between parties to enable the user to access the data files of different first parties.