网格中可信资源的评估及访问控制研究

在变化的网格环境下,为了实现各类资源的透明共享,解决网格节点间进行频繁互操作的交互安全问题,结合粗集理论及线性回归技术,通过对网格节点间交互产生的七元组交易信息进行二元约简处理,建立数学模型,预测评估网格资源的可信度并作访问控制,从而实现了网格中主客体对访问权限的动态管理。最后的仿真实验表明,方案能保证网格系统中各种异类资源和服务在紧密的协同合作和透明共享时,又可以从提供资源共享者那里保护自己,从而科学有效地解决网格系统中互操作时复杂的信任问题。

Evaluation and Access Control of Trustworthy Resource in Grid

In order to achieve transparency and sharing of all resources in the changing grid environment,based on the rough sets theory and linear regression technology,the paper stipulated the seven element information produced in every trade between entities to two element aggregate by an correlative agreement,then founded a planar reference frame.An evaluation and access control of trustworthy resource is proposed to dynamically manage the access permission according to the trust values of subjects and objects. Th...