DECODING/DECRYPTING BASED ON SECURITY SCORE

• US 20090144836A1
• Filed: 11/21/2005
• Published: 06/04/2009
• Est. Priority Date: 11/24/2004
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Gutta, Srinivas Venkata Rama, Barbieri, Mauro
• Application Number:
  US11/719,404
• Publication Number:
  US 20090144836A1
• Time in Patent Office: Days
• US Class Current: 726/30
• 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 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: G06F 2221/2113 Multi-level security, e.g. mandatory access control
• 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 2463/103 applying security measure for protecting copy right protecting software against unauthorised usage in a vending or licensing environment, e.g. protection the software providers copyright G06F21/10; data processing systems or methods, specially adapted for payment schemes, architectures or protocols G06Q20/00; secrecy systems or subscription systems H04N7/16
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/0861 using biometrical features, e.g. fingerprint, retina-scan cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231
• CPC Class Codes: H04L 63/105 Multiple levels of security

Abstract

A security system provides a security score (125) that corresponds to a likelihood that received content material (101) is authorized to be rendered, and controls (250) the rendering of the material based on the security score (125). The security score (125) can be compared (240) to a security criteria (151) that is associated with the material being rendered, so that different material impose different constraints. The security score (125) may also control (320) a level of quality/fidelity of the rendering of the material, so that, for example, a high-fidelity copy of the material is only provided when a high degree of confidence is established that providing a copy is authorized.

Claims

1. A method of controlling a rendering of content material (101), comprising:

determining (230) a security score (125) associated with the content material (101),

determining (210) a security criteria (151) associated with the content material (101), and

controlling (250) the rendering of the content material (101) based on the security score (125) and the security criteria (151).

2. The method of claim 1, wherein

the security criteria (151) is based on at least one of:

an age of the content material (101),

a rating of the content material (101),

a person associated with the content material (101), and

a synopsis of the content material (101).

3. The method of claim 1, wherein

the security score (125) is based on a correspondence between security information (115) contained in the content material (101) and authentication information (121) associated with an authorized copy of the content material (101).

4. The method of claim 3, wherein

the authentication information (121) corresponds to a biometric.

5. The method of claim 3, wherein

the authentication information (121) corresponds to information associated with a media containing the content material (101).

6. The method of claim 1, wherein

controlling (250) the rendering includes controlling a quality of the rendering of the content material (101).

7. The method of claim 1, further including

determining (220-230) a subsequent security score (125) and

controlling the rendering based on the subsequent security score (125) and the security criteria (151).

8. The method of claim 1, wherein

the security criteria (151) is provided with the content material (101).

9. The method of claim 1, wherein

determining (210) the security criteria (151) includes determining an intended use of the rendering.

10. A method controlling a rendering of content material (101), comprising:

determining (230) a security score (125) associated with the content material (101), and

controlling (250) a quality of the rendering of the content material (101) based on the security score (125).

11. The method of claim 10, wherein

the security score (125) is based on a correspondence between security information (115) contained in the content material (101) and authentication information (121) associated with an authorized copy of the content material (101).

12. The method of claim 11, wherein

the authentication information (121) corresponds to a biometric.

13. The method of claim 11, wherein

the authentication information (121) corresponds to information associated with a media containing the content material (101).

14. The method of claim 10, further including

determining (220-230) a subsequent security score (125) and

controlling (250) the quality based on the subsequent security score (125).

15. The method of claim 10, wherein

controlling (250) the quality is further based on an intended use of the rendering.

16. The method of claim 10, wherein

controlling (250) the quality is further based on a security criteria (151) associated with the content material (101).

17. The method of claim 16, wherein

the security criteria (151) is based on at least one of:

an age of the content material (101),

a rating of the content material (101),

a person associated with the content material (101), and

a synopsis of the content material (101).

18. A system comprising:

a receiver (110) that is configured to receive content material (101),

a decoder (140) that is configured to decode the content material (101) to provide renderable content material;

a security evaluator (120), operably coupled to the receiver (110), that is configured to determine a security score (125) associated with the content material (101),

a security controller (150), operably coupled to the security evaluator (120), that is configured to;

receive a security criteria (151) associated with the content material (101), and

control the decoder (140) based on a comparison of the security score (125) and the security criteria (151).

19. The system of claim 18, wherein

the security criteria (151) is based on at least one of:

an age of the content material (101),

a rating of the content material (101),

a person associated with the content material (101), and

a synopsis of the content material (101).

20. The system of claim 18, wherein

the security evaluator (120) is configured to determine the security score (125) based on a correspondence between security information (115) contained in the content material (101) and authentication information (121) associated with an authorized copy of the content material (101).

21. The system of claim 18, wherein

the decoder (140) is controllable to vary a quality of the renderable content material, and

the security controller (150) is configured to control the quality at the decoder (140) based on the security score (125).

22. A system comprising:

a decoder (140) that is configured to receive content material (101) and provide renderable content material, and

a security controller (150) that is configured to determine a security score (125) associated with the content material (101),

wherein

the decoder (140) is controllable to vary a quality of the renderable content material, and

the security controller (150) is configured to control the quality at the decoder (140) based on the security score (125).

23. The system of claim 22, wherein

the quality of the renderable content material includes a resolution of the renderable content material.

24. The system of claim 22, wherein

the security evaluator (120) is configured to determine the security score (125) based on a correspondence between security information (115) contained in the content material (101) and authentication information (121) associated with an authorized copy of the content material (101).

25. The system of claim 22, wherein

the security controller (150) is further configured to control the quality at the decoder (140) based on a security criteria (151) associated with the content material (101).