P2P网络中一种基于信誉感知的资源发现算法  

Resource Discovery Algorithm Based on Reputation-Aware in Peer-to-Peer Networks

作　　者：周金洋[1] 杨寿保[1] 郭磊涛[1] 王菁[1] 陈颖[1] 

机构地区：[1]中国科学技术大学计算机系高性能计算及应用省部共建重点实验室,安徽合肥230027

出　　处：《小型微型计算机系统》2006年第10期1798-1802,共5页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(60273041)资助;国家"八六三"计划项目(2002AA104560)资助.

摘　　要：P2P网络的动态性和匿名性对P2P应用获取成功具有显著的贡献,但同时也造成一些恶意节点在网络中提供不可靠或者欺诈的服务.本文在非结构化P2P网络中引入健壮灵活的信誉机制,提出了基于信誉感知的启发式资源发现算法,确保资源请求节点得到可靠的资源和服务.仿真试验表明,该算法有效的抑制了P2P网络中恶意节点的欺诈行为,降低了系统的消息负载,保证了请求节点获得服务和资源的可靠性和安全性.The dynamic and anonymity of P2P network have distinct contributions to the successful application of P2P. At the same time, they also induce some malicious nodes to provide untrustworthy and fake service. This paper introduces a robust and flexile reputation mechanism in unstructured P2P and presents the heuristic resource discovery algorithm based on reputation-aware to ensure that resource requestor can obtain reliable resource and service. This new resource discovery algorithm can effectively restrain the imposture and pseudo service of P2P network,improve the reliability and security and decrease network load.

关 键 词：P2P系统 资源发现 信誉感知 信誉值 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]