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.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第2期330-332,共3页
Computer Engineering and Design
关键词
网格
安全
行为信任
推荐
互信
grid
security
behavior trust
recommendation
mutual trust
