The secure approach of accessing to the kernel database in state key information system

Nowadays, more and more computer criminal and network attacker aimed at kernel databases, which are the important basis of state and enterprise key information system. The security of kernel database access relates national and property safety. The paper proposes a database secure access approach (DSAA)-security access path (SAP) with Diameter authentication, which could effectively identify users, carry access control, and resist kinds of attacks. For the purpose of enhancing access security to the information of civil aviation, DSAA is applied in Air Traffic Management (ATM) information system, which is a quite important condition for flight safety. Experiments on Denial of Service (DoS) attack both in static state and dynamic state show that DSAA is effectively. The research result will enhance security and credibility of state key information system database accessing.