评价离散度敏感的P2P交易系统信任模型  

A Rating Dispersion Sensitive Trust Model for P2P Transactions

作　　者：陈爱国[1] 徐国爱[2] 杨义先[3] 

机构地区：[1]电子科技大学计算机科学与工程学院,成都611731 [2]北京邮电大学灾备技术国家工程实验室,北京海淀区100876 [3]北京邮电大学信息安全中心,北京海淀区100876

出　　处：《电子科技大学学报》2010年第3期425-429,共5页Journal of University of Electronic Science and Technology of China

基　　金：国家973计划(2007CB310704);国家863计划(2009AA01Z439);NSFC-广东联合基金(U0835001)

摘　　要：提出了一种评价离散度敏感的P2P电子交易系统信任模型,该模型引入了基于推荐节点数量和推荐信息离散程度的全局声誉信度概念,以及直接声誉的相对信度概念,并给出了基于信度的信任度计算方法。通过仿真实验和分析,验证了该信任模型的有效性和抗恶意节点能力。与EigenRep进行比较,表明该文模型在抗恶意节点攻击能力上有了显著提高。For the openness,anonymity,and dynamic characters in P2P systems,participants lack trust relationship inference each other in P2P e-commerce communities.A rating dispersion sensitive trust model for P2P transactions is presented.The credibility of global reputation and direct reputation is introduced.The credibility of global reputation is calculated from the recommended peers’ number and recommended rating’s dispersion.The validity and anti-attack ability are proved by the simulation and analysis.The results of the experiments are compared with EigenRep and shows the sound performance of the model.

关 键 词：P2P网络 信任 信任模型 电子交易 网络安全 

分 类 号：TP393.07[自动化与计算机技术—计算机应用技术]