非结构化对等网络中的信誉管理机制  

Reputation management mechanism in unstructured P2P networks

作　　者：项武[1] 秦景[2] 

机构地区：[1]丽水市财政局信息中心 [2]河北建筑工程学院电气系

出　　处：《计算机工程与设计》2010年第18期3953-3956,共4页Computer Engineering and Design

摘　　要：针对因特网上网络资源共享中存在的恶意节点行为,提出并描述了一种非结构化对等网络中的信誉管理机制。该机制使用非集中式的策略,根据节点与应用的需求计算节点的信誉度,具有独立性,不需要其它节点的参入与辅助。把加入对等网络的节点行为划分为恶意行为与友好行为,既可以统计节点对系统的贡献,也可以根据恶意行为而减少节点的信誉度。描述了信誉管理机制的设计与实现,各种节点行为下的仿真实验结果表明,该信誉管理机制是对等网络中一种真实的、高效的、信誉机制良好的资源共享策略。Confronted with the various types of malicious intrusions in P2P based resource sharing system over the Intemet, a novel reputation management mechanism in unstructured P2P network,,; is presented and described. A decentralized approach is adopted which allows to compute peers＇ reputation based on the traffic between a node and its neighbor peers. The behavior of a peer is divided into two actions and distinguished with bad and good actions respectively： The design and implementation of this reputation-based model is also discussed subsequently. The experimental results obtained from simulations show that the fairness reputation mechanisms is a feasible, efficient and good policy in P2P-based resource sharing systems.

关 键 词：非结构化对等网络 信誉机制 信誉度 非集中式系统 资源共享 

分 类 号：TP338.8[自动化与计算机技术—计算机系统结构]