An improved access control systmem DCAM based on GSI

In the grid environment, making use of resources is more important than sharing them safety. In order to achieve the sharing and management of grid resources, the grid resources providers and visitors need to negotiate resources sharing agreements, and solve the grid resources access control problem. Based on the safety certificate framework, an improved access control system was proposed in this paper, which was the double certificate authentication model (DCAM). The experimental results showed that the improved system strengthened the security of the grid access control, and enhanced the stability and reduce the time delay of the user identity authentication. Compared with the traditional grid access control system, the improved system has relatively obvious improvement in performance, so it has certain practical value in the grid application.