网格环境中一种基于行为的互信决策模型  

Behavior-based mutual trust decision model in grid

作　　者：刘英戈[1] 张基温[1] 

机构地区：[1]江南大学信息工程学院,江苏无锡214122

出　　处：《计算机工程与设计》2007年第2期330-332,共3页Computer Engineering and Design

摘　　要：由于网格的动态性和不确定性所带来的安全问题,网格实体间的信任关系成为研究的热点问题,提出一种新的基于行为的互相信任关系模型,该模型与以往的模型[5,7]相比,改进了其中的信任值算法并提出了全新的互信决策机构的概念,互信决策机构根据用户和资源各自的信任阈值建立互信关系、分配资源、更新信任值,解决实体间的信任不对称,提高整个网格系统的安全性和交易的成功率。Because of grid transforming dynamic and indefinitive that results in secure problem, the study on trust relationships among grid entities becomes hot-point. A mutual trust model based on behavior is proposed. Being compared with old trust model, old trust score calculation method is improved and a new concept of mutual trust decision machinery is proposed. Mutual trust decision machinery builds mutual trust relationship between user and resources in light of their trust valve, allocates resource, updates trust score and resolves the trust asymmetry. Furthermore, the security of whole grid system and the rate of good transaction are improved.

关 键 词：网格 安全 行为信任 推荐 互信 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]