Security grid technology based on information security control theory

Combined with the research on grid system security problem, the shortcomings of traditional GSI and gird system and its security are analyzed. In view of the demands of improving its expandability and dynamic behavior, the information security control theory is presented. Its theory foundation and concrete contents are introduced. A security grid model based on the information security control theory is studied and completed. In the security grid model with feedback function, security control strategy, authentication modulo and control modulo are established. This can improve the expandability of grid system and its dynamic behavior. The security grid technology proposed here can provide a new way of thinking for the improvement of grid security.