Method and apparatus for using DRM content while roaming

• US 20070192837A1
• Filed: 01/18/2007
• Published: 08/16/2007
• Est. Priority Date: 02/15/2006
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jung, Kyung-im, Lee, Jae-won, Chae, Seung-chul, Jang, Young-suk
• Application Number:
  US11/654,548
• Publication Number:
  US 20070192837A1
• Time in Patent Office: Days
• US Class Current: 726/4
• 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 2221/2137 Time limited access, e.g. to a computer or data
• CPC Class Codes: H04L 63/0807 using tickets, e.g. Kerberos cryptographic mechanisms or cryptographic arrangements for entity authentication using tickets or tokens H04L9/3213
• CPC Class Codes: H04L 63/0853 using an additional device, e.g. smartcard, SIM or a different communication terminal cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234
• CPC Class Codes: H04W 12/06 Authentication

Abstract

A method of using digital rights management (DRM) content while roaming is provided. The method includes issuing disposable authentication information to a mobile device; receiving a request for remote authentication along with the authentication information from an unauthorized device included in a remote domain; transmitting a query for the remote authentication to the unauthorized device; receiving a response to the query; and transmitting data approving authentication of the unauthorized device to the unauthorized device.

Claims

1. A method of using Digital Rights Management (DRM) content while roaming, the method comprising:

issuing disposable authentication information to a mobile device;

receiving a request for remote authentication along with the authentication information from an unauthorized device included in a remote domain;

transmitting a query for the remote authentication to the unauthorized device;

receiving a response to the query; and

transmitting data approving authentication of the unauthorized device to the unauthorized device.

2. The method of claim 1, wherein the unauthorized device is a device of the source domain.

3. The method of claim 1, further comprising storing an identifier of the mobile device.

4. The method of claim 3, further comprising comparing the identifier stored within a message requesting the authentication and a second identifier of the mobile device after the receiving the request for the remote authentication.

5. The method of claim 1, further comprising checking if the unauthorized device is included in a device certificate revocation list.

6. The method of claim 1, wherein the mobile device is movable and can store the disposable authentication information.

7. The method of claim 1, wherein the remote authentication query or data approving authentication of the unauthorized device is encoded by a key included in the disposable authentication information.

8. A method of using Digital Rights Management (DRM) content while roaming, the method comprising:

issuing disposable authentication information from a device of a source domain to a mobile device;

requesting remote authentication to an unauthorized device of a remote domain using the disposable authentication information;

receiving a result approving remote authentication from the unauthorized device; and

transmitting a temporary rights object to the unauthorized device.

9. The method of claim 8, further comprising:

receiving a remote authentication query from the unauthorized device; and

transmitting a remote authentication response to the unauthorized device.

10. The method of claim 8, wherein the remote authentication query or the result approving the remote authentication is encoded as a key included in the disposable authentication information.

11. The method of claim 8, further comprising transmitting an identifier of a mobile device to the device of the source domain before being issued the disposable authentication information.

12. The method of claim 8, wherein the mobile device is movable and can store the disposable authentication information.

13. A method of using Digital Rights Management (DRM) content while roaming, the method comprising:

receiving a message requesting remote authentication from a mobile device;

transmitting a remote-authentication request message, which comprises a device identifier of a source domain expressed in the message, to a device of a remote domain;

receiving a query for remote authentication from the device of the remote domain;

transmitting a response to the query to the device of the remote domain; and

receiving data approving authentication from the device of the remote domain.

14. The method of claim 13, further comprising:

transmitting the query to the mobile device after the receiving the query for the remote authentication; and

receiving a second response to the query from the mobile device.

15. The method of claim 13, further comprising:

transmitting the data that approves the authentication to the mobile device; and

receiving a temporary rights object from the mobile device after receiving the data that approves the authentication.

16. A method of using Digital Rights Management (DRM) content while roaming, the method comprising:

receiving a message requesting remote authentication from an unauthorized device;

sending a request for remote authentication to a first device of a source domain expressed in the message, and receiving a query for remote authentication from a second device of a remote domain;

transmitting the query to the unauthorized device, and receiving a response to the query from the unauthorized device;

transmitting the response to the first device of the source domain; and

receiving data approving authentication from the first device of the source domain, and transmitting the authentication-approving data to the unauthorized device.

17. A device comprising:

an authentication unit which issues disposable authentication information to a mobile device,

a receiving unit which receives a request for remote authentication along with the authentication information from an unauthorized device included in a remote domain;

a transmitting unit which transmits a query for authentication to the unauthorized device; and

an encoding or decoding unit which encodes or decodes data transmitted and received via the transmitting unit or the receiving unit,

wherein the receiving unit receives a response to the query from the unauthorized device, and the transmitting unit transmits data approving authentication of the unauthorized device to the unauthorized device.

18. The device of claim 17, wherein the authentication unit has a function which stores and deletes the disposable authentication information, and has a key that encodes the query.