Network Reputation System And Its Controlling Method Thereof

• US 20100205430A1
• Filed: 03/26/2009
• Published: 08/12/2010
• Est. Priority Date: 02/06/2009
• Status: Active Grant

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Chang, Shih-Ying, Chiou, Shin-Yan, Mezzour, Ghita, Perrig, Adrian, Sun, Hung-Min
• Granted Patent: US 8,312,276 B2
• Time in Patent Office: Days
• US Class Current: 713/156
• CPC Class Codes: G06Q 10/10 Office automation; Time management
• CPC Class Codes: G06Q 30/0282 Rating or review of business operators or products
• CPC Class Codes: G06Q 30/06 Buying, selling or leasing transactions
• CPC Class Codes: G06Q 50/01 Social networking

Abstract

A network reputation system and its controlling method are provided. A credentials and exchange component permits a user to generate credentials and exchange matching keys with those persons having a social relationship with the user. A reputation evaluation component enables other users to make evaluations about an estimatee via the sharing of social network information. A query and response component receives a query from a person having a social relationship with the user for requesting an evaluation about the estimatee, and responds an associated evaluation result to the person having a social relationship with the user, via the sharing of social network information and the evaluations made by the other users about the estimatee.

Claims

1. A network reputation system, being in conjunction with one or more estimator'"'"'s social networks and one estimatee'"'"'s reputation network, said system comprising:

a credentials and exchange component that permits a user to generate credentials and exchange matching keys with those persons having a social relationship with said user;

a reputation evaluation component that enables other users to make evaluations about an estimatee via the sharing of social network information; and

a query and response component that receives a query from a person having a social relationship with said user for requesting an evaluation about said estimatee, and responds an associated evaluation result to the person having a social relationship with said user, via the sharing of social network information and the evaluations made by the other users about said estimatee.

2. The system as claimed in claim 1, said system is implemented in conjunction with one or more social networks and at least a computer-readable medium.

3. The system as claimed in claim 1, wherein each of said one or more estimators in said system recognizes evaluations in a privacy preserving fashion.

4. The system as claimed in claim 1, wherein said query is further sent to an application server via said query and response component, and said associated evaluation result is also generated by said application server then sent to the person via said query and response component.

5. The system as claimed in claim 1, wherein a communication protocol with private matching and signature being bounded together to achieve user identity'"'"'s privacy preserving and data authentication is employed in said network reputation system.

6. The system as claimed in claim 1, wherein a communication protocol with sharing bridge identity and a way of signature to respectively achieve user identity'"'"'s privacy preserving and data authentication is employed in said network reputation system.

7. The system as claimed in claim 1, wherein a communication protocol with server matching to achieve data authentication is employed in said network reputation system.

8. The system as claimed in claim 1, wherein said social network information is chosen from a group of a personal identity of said user, a public key of said user and a matching item of said user, in a master social network build for said user.

9. The system as claimed in claim 8, wherein said associated evaluation result about said estimatee is a concatenation of a plurality of parameters, and said plurality of parameters at least include a service identity of said estimatee, an authentication from said other users, and a score evaluated by said other users on said estimatee.

10. The system as claimed in claim 9, wherein said authentication is through a channel of using signing key with an encrypted function of said service identity of said estimatee, each matching item of each of said other users and said score evaluated by said other users on said estimatee.

11. A controlling method for a network reputation system, comprising:

a user producing master social network information via the user'"'"'s social network;

said user sharing social network information with those persons having a social relationship with said user through the conversion of the information of a master social network;

said user making an evaluation about an estimate via said social network information;

a person having a social relationship with the user requesting an application server for the evaluation about an estimatee; and

said application server replying an associated evaluation result about said estimatee to said person having a social relationship with said user, at least including the evaluation value evaluated by said user.

12. The method as claimed in claim 11, wherein said network reputation system is in conjunction with one or more estimator'"'"'s social networks and one estimatee'"'"'s reputation network.

13. The method as claimed in claim 12, said method includes an initialization phase, a credential exchange phase, a reputation evaluation phase, and a query and response phase.

14. The method as claimed in claim 12, wherein said master social network information is chosen from a group of a personal identity of said user, a public key of said user and a matching item of said user, in a master social network build for said user.

15. The method as claimed in claim 14, wherein said matching item of said user is generated via a cryptographic hash function.

16. The method as claimed in claim 12, wherein the requesting for the evaluation about the estimatee is employed a formula P, where said formula P is derived from the social network information of said user in a reputation system model.

17. The method as claimed in claim 16, wherein said associated evaluation result about said estimatee is obtained from another formula Q, where said formula Q is derived from said formula P, the evaluation value by said user, and the evaluation value by one or more other users.

18. The method as claimed in claim 17, said method employs a private matching scheme to achieve the privacy preserving for both user identity and social network information, and utilizes a way of signature to achieve the authentication.

19. The method as claimed in claim 17, wherein the correctness of the evaluation value evaluated by said user is verified via said formula Q and said social network information.

20. The method as claimed in claim 12, wherein said application server replying said associated evaluation result about said estimatee to said person, including the evaluation values evaluated by said user and one or more other users.

21. The method as claimed in claim 20, wherein said evaluation values evaluated by said user and one or more other users are encrypted by their own private keys inside their own social network information.

22. The method as claimed in claim 20, wherein the correctness of the evaluation value evaluated by said user is verified via said social network information.

23. The method as claimed in claim 12, wherein said person build a personal social group via said social network information, and allows said application server learn said social group.

24. The method as claimed in claim 23, wherein said application server computes said associated evaluation result about said estimatee through said social group, said evaluation value evaluated by said user, and other evaluation values evaluated by one or more other users.