Research And Design Of User Incentive Machinism In P2P Anonymous Communicat Ion System

With the rapidly development of information technology in the whole world, internet brings many advantages to human society as well as the problem of information security. More and more people concern the safety of their real identity and privacy, then the anonymous communication technology develops as the times require.However, there are always a large numbers of"Free-Riding"users in many well designed Peer-to-Peer anonymity systems, which consume the resource but do not make any contribution. The selfish behaviors will cause the degradation of system performance. This thesis focuses on the"Free-Riding"problem and designs a user cooperation incentive mechanism to P2P anonymity systems.This thesis introduces the research on anonymity systems and user incentive mechanisms in recent years, researches on the P2P anonymity technique and performance. We analyze the different"Free-Riding"in anonymity systems and their effects in this paper, and bring forward a standard to the nest step's design.Based on the analyze work we describe an incentive mechanism works on Crowds system, which adopts"different service"idea and make the Free-Riders can only obtain a poorer service. According to the experimental, this thesis analyses the native effects on the anonymity protection and efficiency of the Free-Riders.In the end, the thesis concludes that the incentive mechanism designed in this paper can bring different service to the Free-Riders, thereby reducing the"Free-Riding"beavers and enhancing the performance of the anonymity systems.