Abstract: A method includes generating a first key with a first electronic controller unit (ECU) dedicated to control a first electronic component of the vehicle in response to receiving power at the first ECU, sending the first key to a second ECU dedicated to its own respective electronic component, organizing a second key received from the second ECU in a message table to correspond to a second CAN ID of the second ECU, composing a secure CAN message including a first CAN ID and a message payload, encrypting a first CAN ID portion of the secure CAN message using the first key, sending the secure CAN message to the second ECU, receiving a second secure CAN message from the second ECU, and decrypting an encrypted CAN ID portion of the second secure CAN message using the second key stored in the message table associated with the second CAN ID.

Abstract: A system for implementing a secure controller area network (CAN) in a vehicle includes a first electronic controller unit (ECU) dedicated to control a first electronic component of a vehicle, wherein the first ECU comprises a first CAN identification (ID) and a first key. The system may also include a second ECU dedicated to control a second electronic component of the vehicle. The first ECU is to send the first key to the second ECU, and the first ECU is to encrypt the first CAN ID portion of a secure CAN message using the first key. The second ECU is to decrypt the first CAN ID portion of the secure CAN message using the first key from the message table.

Abstract: Examples of the present disclosure relate to a device, method, and medium storing instructions for implementing a secure controller area network (CAN) in a vehicle. Techniques discussed herein include a first electronic controller unit (ECU) dedicated to control a first electronic component of a vehicle, wherein the first ECU comprises a first CAN identification (ID) and a first key. The techniques may also include a second ECU dedicated to control a second electronic component of the vehicle. In an example, the first ECU is to send the first key to the second ECU, and wherein the first ECU is to encrypt the first CAN ID portion of a secure CAN message using the first key. In an example, the second ECU is to decrypt the first CAN ID portion of the secure CAN message using the first key from the message table.