Research Of Security And Trust Model For Peer-to-Peer Network

The essence and the main characteristic of network or Internet consist in the share of resource. Because of the limit in the bandwidth and the competence of computing during developing of network, our communication must recur to many intermediates, such as inter-server, web server and the third information business-platform. Thus, people only can take part in using network passively, and passively accept the outdated and miscellaneous information from these so-called"center". Peer-to-Peer (P2P) network technology can nicely solve these problems which existing network is facing with. So, P2P become the focus of attentions. At the same time, Peer-to-Peer network is yet frail. The main problem includes the follow two ways: search or discovery resource and security communication.This thesis proposed a novel trust model based upon Peer-to-Peer network, one of the most popular and rapidly developed networking structures. Referring to social people trust relationship model, trust model based on recommendation evidence reasoning is designed in P2P network and integrated the recommendation evidence with D-S theory. This thesis uses ideas from game theory to study the interaction of peers, and a differential service-based incentive scheme.