Immunity-Inspired Risk Assessment Approach for Network Security

Risk assessment is one of the most important issues in network security research. Inspired by the principles of artificial immune system, a novel risk assessment approach for network security, referred to as IRAA, is proposed in this paper. After defining the concepts and formal definitions, the architecture and principles of IRAA are described. And then, the lifecycle models of mature and memory lymphocytes are built. Theoretical analysis and experimental results show that IRAA is valid, and it has the features of self-adaptive, distributed, and real time. Therefore, it provides a good solution to risk assessment for network security.