摘要
针对P2P网络中存在的多种恶意行为,提出一种基于群组的信任管理模型。该模型采用分组策略,引入直接信任度、组内信任度、组间信任度及多种控制因子来计算节点总体信任度,提高了信任机制的可靠性。仿真实验表明,该模型能够有效抑制多种恶意行为,提高系统成功交易率,使节点之间更有效地建立信任关系。
To solve the problem of a variety of malicious behaviors in P2P networks,this paper proposed a novel trust model based on group.Through grouping strategy,computed the global trust degree of peer by using direct trust degree,group trust degree,trust degree between groups and mutiple control factors.Simulation results show that the proposed model has fairly good inhibitory action to malicious acts,and can evidently enhance successful transaction ratio of system and efficiently help peers establish trust relationships in P2P networks.
出处
《计算机应用研究》
CSCD
北大核心
2010年第7期2638-2640,共3页
Application Research of Computers
基金
国家自然科学基金资助项目(60773013
60902044)
