Unique message authentication security approach based controller area network (can) for anti-lock braking system (abs) in vehicle network

Controller Area Network (CAN) is one of the standard communication bus protocols used for intercommunication between electronics control units (ECUs) in vehicle network. However, due to its various security vulnerabilities, safety critical system connected to the network are most susceptible to malicious internal or external attacks. This paper proposes a new method to introduce a Message Authentication System to improve security features of CAN. The proposed method is implemented in a CAN based in-vehicle network (IVN) model with anti-lock braking system (ABS) designed in MATLAB and Simulink. Hie model employs message authentication security feauire for detection of any third-party intrusion by incorporating each transmitted CAN frame with additional security characteristic information unique to the frame. The result analysis from the proposed method demonstrated that the additional security feature has proved to be effective by successfully detecting and preventing third party intrusions interfering with the ABS via CAN bus. therefore, maintaining the integrity of the connected ECUs.