P2P网络中双向信任机制的研究

P2P网络(Peer toPeer,对等网)已经以飞快的速度发展成为internet中最重要的应用系统之一。P2P网络开放、匿名的特性使得任何人在任何时候都也可加入网络为其他人提供内容和服务,同时也可以从网络中查找并获得所需要的资源。然而,也正是因为这种特点,节点之间缺乏信任、恶意节点随意终止服务,造成了网络的利用率低下,信任管理就显得十分必要。然而传统的单向信任管理机制难以有效地对自私节点和恶意节点进行控制。鉴于此,本文在研究P2P网络的信任管理机制的基础上,引入了双向信任机制,实现节点之间的双向评估。

Research on Bio-trust Management Mechanisms about P2P Ntework

P2P network has been developed into one of the most important application system of the internet in a very fast way.The openness and the anonymity of the P2P network determines that anyone can join the network at anytime to provide contents and services to other people as well as search and get the resources they need simultaneously.It is because of this feature,lack of trust between the peers、malicious peers terminate the services optionally resulting in lower utilization of the network that the trust management is very important.However,traditional one-way trust management can hardly control the freerider peers and malicious peers effectively.Whereas these problems,this paper introduced a bio-trust management mechanisms to achieve a two-way assessment between peers in the basis of research on trust management mechanisms about the P2P network.