非结构化P2P中的一种信任机制

为了消除非结构化对等网络中恶意节点的恶意行为对网络系统造成的危害,提出了一个基于社会规则的声望模型,给出了该声望模型的参数及其计算方法,在基于社会规则的声望模型的基础上,提出一个用于非结构化对等网络的信任管理方案;给出了评价信息的分布式存储方案以及信任管理中声望和满意率的计算方法,提出了一个声望搜索算法;给出一个基于信任的拓扑进化算法,该算法改善了网络拓扑结构,增加了网络性能的稳定性.实验仿真表明该信任机制能够有效抵制非结构化对等网络应用中恶意节点的恶意攻击.

A Trust Management Mechanism in Unstructured P2P

Unstructured P2P is a kind of very popular network application,such as Gnutella,KaZaa,etc.But its open nature makes it easy to attack by malicious peers,such as uploading inauthentic files,spreading computer viruses,etc.Hence,to mitigate the adverse behavior of unreliable or malicious peers in unstructured P2P,a reputation model based on social rules is proposed in this paper.At the same time,the parameters of the reputation model and their computing methods are presented.Based on the reputation model,a tru...