基于PKI/PMI和T-RBAC的网格工作流安全模型

Grid Workflow Security Model Based on PKI/PMI and T-RBAC

研究网格工作流的安全问题,结合网格和工作流的特点,给出一种基于PKI/PMI和T-RBAC的网格工作流安全模型。该模型采用PKI/PMI技术进行身份认证和角色授权,利用基于角色和任务相结合的访问控制方式(T-RBAC)机制对工作流程动态管理,达到更加安全和灵活的目的。最后给出一个实例,并对该模型的安全性进行分析。

Just like the problem of network security, the problem of security in grid has been focused. Safety and efficiency can be acquired at the same time after the problem solved that taking work_flow task under the dynamic gird environment securely. Combining the characteristics of grid and workflow, gird workflow security model based on PKIfPMI and T-RBAC was presented. PKI/PMI was brought into identity authentication and role authorization. Workflow tasks were run dynamically by using T-RBAC. More safe and flexible purpose was achieved. At the last an example was given to analyze the security of this model.