An Immunology-Based Security System Model for Authorization

In this paper, we propose a novel security system model for authorization, which refers to the immune system of human being, consisting of three defense-lines. The first line employs authentication techniques, which is the legal premise for subsequent authorization. In second line, blacklist techniques are adopted. Then, the final line is the adaptive immunity, which features the capability of learning and memorizing utilizing the two-level cache mechanism. Meanwhile, to further enhance the performance, in final line, we design a Policy-Filter module based on set-theory to cut down the policy-scale radically. By these lines, the system acts like a human being with the capability of self-adaption and self-adjustment.