System and method for providing secured can communications

A method for providing secured controller area network (CAN) communications among a sender and a receiver, the method comprising:

• generating, by at least one processing unit of the sender, a one-time passcode (OTP) based on at least a timestamp and a geographical location;
• obtaining, by the at least one processing unit of the sender, a master key pre-provisioned to the sender and the receiver;
• deriving, by the at least one processing unit of the sender, a shared key based on the OTP and the master key;
• generating, by the at least one processing unit of the sender, a message authentication code (MAC) based on the derived shared key;
• appending, by the at least one processing unit of the sender, the MAC to a message;
• and
• transmitting, by the at least one processing unit of the sender, the appended message to the receiver via a CAN bus,
• wherein the generating the MAC comprises:
• obtaining, by the at least one processing unit of the sender, a counter value;
• and
• generating, by the at least one processing unit of the sender, the MAC based on the derived shared key and the counter value.