一种健壮的可扩展网格信誉系统  

Scalable and Robust Reputation System for Grid

作　　者：崔永瑞[1] 李明楚[1] 任一支[1] 

机构地区：[1]大连理工大学软件学院,辽宁大连116621

出　　处：《小型微型计算机系统》2009年第7期1383-1387,共5页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(9041200760673046)资助;国家自然科学重点基金项目(90715037)资助;国家重点基础研究发展计划"九七三"项目(2007CB714205)资助;高等学校博士学科点基金(200801410028)资助;重庆自然科学基金项目(2007BA2024)资助

摘　　要：针对网格环境下,信誉系统刻画跨组织陌生实体间信任关系的合理性、健壮性及可扩展性问题,提出一种健壮的可扩展网格信誉系统.该信誉系统依据网格实体间的信任关系,在网格组织结构之上建立虚拟信任网,充分利用虚拟信任网的全局特性,将组织间的信任关系作为重要参考,实现了实体信任关系的合理评价,对网格环境的资源管理以及网格虚拟组织的构建都有着良好的指导作用.仿真实验表明,该信誉系统能够真实刻画跨组织网格实体间的信任关系,有效遏制虚假交易以及诽谤等攻击,并具有良好的可扩展性.To solve the rationality, robustness and scalability problems in the reputation system in grid when depicts the trust relationship between inter-organization unacquainted entities, a sealable and robust reputation system is proposed. The proposed system congructs a virtual trust network on top of the grid infrastructure using trust relationships between entities and regards the orgrhization-level trust relationship as crucial reference factor based on the global property of virtual trust network, which achieves rational trust evaluation between entities. Simulation experiment results show that the system depicts realistically the trust relationship between inter-organization grid entities and resists against fake transaction attack and slander attack efficiently. Besides, it shows high scalability.

关 键 词：网格 信誉系统 信任 虚拟组织 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]