Method and system for providing DRM license

• US 20070100764A1
• Filed: 10/13/2006
• Published: 05/03/2007
• Est. Priority Date: 10/13/2005
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Hyoung-shick
• Application Number:
  US11/546,993
• Publication Number:
  US 20070100764A1
• Time in Patent Office: Days
• US Class Current: 705/59
• CPC Class Codes: G06F 21/00 Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
• 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 2221/2115 Third party
• CPC Class Codes: G11B 20/00137 involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
• CPC Class Codes: G11B 20/00188 involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00492 wherein content or user data is encrypted
• CPC Class Codes: G11B 20/00847 wherein the usage restriction is defined by a licence file
• CPC Class Codes: H04L 2209/603 Digital right managament [DRM]
• 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 63/10 for controlling access to devices or network resources
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/3213 using tickets or tokens, e.g. Kerberos network architectures or network communication protocols for entities authentication using tickets in a packet data network H04L63/0807

Abstract

A system and method for providing a digital rights management (DRM) license are provided. The system includes a sink system which requests a license for content; a source system which generates and provides a first rights token including binding information related to the license, in accordance with the request; and a rights mediator which generates a second rights token on the basis of the first rights token, and transmits the generated second rights token to the sink system; wherein the sink system provides the license for the content on the basis of the second rights token. The method includes receiving a request for a license for content; generating a first rights token including binding information related to the license, in accordance with the request; generating a second rights token; and providing the license for the content on the basis of the generated second rights token.

Claims

1. A system for providing a digital rights management (DRM) license, the system comprising:

a sink system which requests a license for content;

a source system which generates and provides a first rights token including binding information related to the license, in accordance with the request; and

a rights mediator which generates a second rights token on the basis of the first rights token, and transmits the generated second rights token to the sink system;

wherein the sink system provides the license for the content on the basis of the second rights token.

2. The system of claim 1, wherein the second rights token is usable in the sink system.

3. The system of claim 1, wherein the binding information comprises path information that indicates relationships among a plurality of principals to which the license is provided.

4. The system of claim 3, wherein each principal of the plurality of principals comprises use subjects which use the content and use objects which play the content.

5. The system of claim 1, wherein the sink system generates a topology for giving content playback rights on the basis of the second rights token, and provides the license by principals comprising the sink system on the basis of the generated topology.

6. The system of claim 1, wherein when the rights mediator receives first rights tokens from a plurality of source systems, the rights mediator generates the second rights token by combining the first rights tokens received from the respective source systems, and the second rights token includes information indicating relations among the respective source systems.

7. The system of claim 1, wherein the source system comprises a web service server which manages a plurality of content and a plurality of DRM licenses for the respective content, and generates the first rights token.

8. The system of claim 1, wherein the sink system comprises a client which receives the plurality of principals and the second rights token from the rights mediator.

9. A method of providing a digital rights management (DRM) license, the method comprising:

generating a first rights token including binding information related to a license for content;

generating a second rights token based on the generated first rights token; and

providing the license for the content on the basis of the generated second rights token.

10. The method of claim 9, further comprising receiving a request for the license for content, wherein the first rights token is generated in accordance with the request.

11. The method of claim 10, wherein the license for content is received from a sink system.

12. The method of claim 11, wherein the second rights token can be understood in the sink system.

13. The method of claim 9, wherein the binding information comprises path information that indicates relationships among a plurality of principals to which the license is provided.

14. The method of claim 13, wherein each principal of the plurality of principals comprises use subjects which use the content and use objects which play the content.

15. The method of claim 9, wherein the providing the license comprises:

generating a topology for granting content playback rights on the basis of the generated second rights token; and

providing the license by principals comprising a sink system on the basis of the generated topology.