构造P2P环境下混合式信任模型  

Building a hybrid trust model for P2P systems

作　　者：胡晓明[1] 李健利[1] 陈小天 荀艳丽[2] 

机构地区：[1]哈尔滨工程大学计算机科学与技术学院,哈尔滨150001 [2]西北工业大学机电学院,西安710072

出　　处：《计算机应用》2008年第12期3217-3219,3247,共4页journal of Computer Applications

摘　　要：针对P2P网络中存在的安全性和可管理性较差、现有信任模型中信任度计算复杂等问题,提出了一种P2P环境下混合式信任模型。该模型采用混合式P2P网络结构,利用时间段机制计算节点信任度,有效地预防节点间的"夸大"、"诋毁"等行为;提出了模型的构建方法以及交互评价反馈方式。仿真结果表明该模型运算量小,并能够有效地孤立和识别恶意节点,具有较强的安全性能。In order to resolve the problems of P2P network, such as security, bad management and complex computation of trust worthiness in current trust model, a hYbrid trust model in P2P system was proposed. This model adopted the hybrid P2P network structure, and time section mechanism for computation trust level, which could efficiently prevent maliCious actions amongst peers, such as ＂exaggeration＂ and ＂slander＂, etc. in addition, the building method and the way of evaluation feedback of the model were proposed. The simulation proves that this model has little computation workload, and can isolate and identify the malicious peers efficiently, with high performance of security.

关 键 词：信任模型 P2P 混合结构 信任度 评价反馈 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]