Risk Assessment Method of Information Security Based on AHP

In the field of information security, risk assessment is the core of the risk management and control, and it is also the foundation and premises that builds up the security system of the information system. A new risk assessment method is introduced to the estimation of the network security risk. The method, which employs analytical hierarchy process, is applied to the risk assessment. AHP method is altered according to the actual condition of the network security risk assessment. The risk assessment is carved up 3 layers applying AHP method, and the sort weight of the third layer is calculated by AHP formula. Finally, the comprehensive risk weight is calculated by AHP method. The study of the case shows that the method can be easily used to the risk assessment of the network security. The results are in accord with the reality.