A Holistic Framework for Securing Wireless Networks and Cyber Physical Systems

Due to lack of pre-deployed infrastructure, nodes in Mobile Ad hoc Networks (MANETs) are required to relay data packets for other nodes to enable multi-hop communication between nodes that are not in radio range with each other. However, whether for selfish or malicious purposes, a node may refuse to cooperate during the network operations or even attempt to interrupt them, both of which are recognized as misbehaviors. In this talk, a holistic framework is presented to cope with these node misbehaviors. In this framework, we factor in the components of misbehavior detection, trust management, and policy management, and the context in which misbehaviors occur is sensed and collected so that we can better understand the reasons why these misbehaviors occur. To extend our current work to a broader application domain, we are trying to apply the security framework to the emerging Cyber-Physical System (CPS), which has some similar features and security needs as MANET does. Experimental results have shown that our holistic framework is able to secure both MANET and CPS in an intelligent and adaptive manner.