SecOC Information Security
In conventional automotive electronic architectures, the number and complexity of electronic control units (ECUs) in a vehicle is limited, as is the communication bandwidth. Therefore, it is widely believed that the communication between individual ECUs in the vehicle is reliable. As long as an ECU node receives the appropriate message, it will process it. However, as the automotive industry and the Internet continue to evolve and vehicles become more intelligent and connected, this default in-vehicle communication becomes increasingly insecure. If a new node is added to the vehicle's physical bus that sends false signals or tampers with messages sent by other ECUs, such as acceleration, braking, and cornering signals, while the power control ECUs associated with it blindly accept these messages, the vehicle may lose control. Therefore, there is an urgent need to develop a secure and efficient algorithm for verifying the authenticity of messages, confirming the legitimacy of the message sender and whether the data has been tampered with. In this context, the Secure Onboard Communication (SecOC) mechanism has emerged.