GRep:一个改良的对等网络信誉模型

GRep:Improved Reputation Model for P2P Network

近年来对等网络获得了广泛应用,但由于对等网络开放、分布和匿名的特性,使得节点之间的服务交流面临较大的安全问题。为此,信誉系统被引入对等网络以建设一个更加有序的交流环境。目前提出的很多信誉模型还远远不能让人满意。分析了信誉系统的常见的三大难题,在传统信誉系统的基础上建立了一个改良的信誉模型GRep。对该模型的分析表明,GRep在三大难题上取得的进展能对现有信誉系统进行有效改善。

P2P networks have become increasingly popular in the recent years. However, their open, distributed and anonymous nature makes them very vulnerable against some security problems. Therefore, much work has been done to build reputation systems upon P2P networks. This paper analyze some tough problems existed in many reputation models and represent an improved reputation model named GRep to show some new ideas for these problems.