A new risk assessment quantitative method based on fuzzy AHP

With the development of the country and the acceleration of information technology, the information security issues is highly growing. In order to efficiently evaluate the information security risk, the information system security risk assessment model based on Fuzzy AHP method is proposed. In this paper, firstly, we use multi-layer structure and elation matrix is introduced to describe the interrelationship among judgment factors. Secondly, on the basis of calculating the influence of factors on security, a new risk assessment quantitative method is established. Finally, certain method is raised to analyze the results from fuzzy judgment. The method changes the ways of generally regarding information security as black box to evaluation security, and plays a role in verifying and modifying the results made by traditional model.