JCP 2010 Vol.5(12): 1942-1950 ISSN: 1796-203X
doi: 10.4304/jcp.5.12.1942-1950
doi: 10.4304/jcp.5.12.1942-1950
Interest-driven Reasoning Based on Commitment Alternating Temporal Logic in the P2P Reputation System
Yu Bao1, 2, Guo-sun Zeng1, and Ke Zhang2
1 Department of Computer Science and Technology, Tongji University, Shanghai, China
2 Department of Computer Science and Technology, China University of Mining & Technology, XuZhou, China
Abstract—P2P files sharing system is popular in network applications. The trust evaluation, designed for restricting the malicious peers in the system, is often based on reputation. When peers choose the trust nodes to download files in terms of the trust evaluation, they have established trust among themselves. Besides the trust, the utility (or interest) gained by peers is the other important factor during the process. In order to find out how the system to evolve based on real utility and trust, we introduce a logic language of game theory, CATL, into the P2P reputation system of files sharing. We propose some deductive rules of strategy reasoning in terms of the utility of the peers to look for the trend of the node selection. The new logic tool works well and we analyze two cases based on it. One case, namely, “advertisement effect”, blocks the newcomer and induces peers to collude with advocating reputation each other. The other case of “small-file-trend” constitutes a threat to the reputation system in Sybil Attack.
Index Terms—P2P reputation system, strategy reasoning; trust, Commitment alternating temporal logic, CATL
2 Department of Computer Science and Technology, China University of Mining & Technology, XuZhou, China
Abstract—P2P files sharing system is popular in network applications. The trust evaluation, designed for restricting the malicious peers in the system, is often based on reputation. When peers choose the trust nodes to download files in terms of the trust evaluation, they have established trust among themselves. Besides the trust, the utility (or interest) gained by peers is the other important factor during the process. In order to find out how the system to evolve based on real utility and trust, we introduce a logic language of game theory, CATL, into the P2P reputation system of files sharing. We propose some deductive rules of strategy reasoning in terms of the utility of the peers to look for the trend of the node selection. The new logic tool works well and we analyze two cases based on it. One case, namely, “advertisement effect”, blocks the newcomer and induces peers to collude with advocating reputation each other. The other case of “small-file-trend” constitutes a threat to the reputation system in Sybil Attack.
Index Terms—P2P reputation system, strategy reasoning; trust, Commitment alternating temporal logic, CATL
Cite: Yu Bao, Guo-sun Zeng, and Ke Zhang, " Interest-driven Reasoning Based on Commitment Alternating Temporal Logic in the P2P Reputation System," Journal of Computers vol. 5, no. 12, pp. 1942-1950, 2010.
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General Information
ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat,etc
E-mail: jcp@iap.org
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