As there are no security mechanisms in the vehicle controller area network (CAN) protocol, it
is easy to inject fake packets, codes and electric control units (ECUs) in the CAN to hijack
vehicle control. Security countermeasures for both the CAN and the ECU are urgently
required to improve driving safety. In this paper, we propose in-vehicle network securities
using the hardware secure elements as follows:(i) secure boot of ECU,(ii) authentication of
an ECU,(iii) authentication of a CAN packet, and (iv) cipher key exchange procedures from a …

(in English) Many researchers try to attack the controller area network (CAN) by sending
faked packets. Since many countermeasures, ex, secure algorithms, devices, and chips, are
proposed, it is confused that which countermeasures can be applied. This paper overviews
both standardization and researches for CAN security, and pickups a robust technique that
adds a media authentication code (MAC) to the CAN packet and exchanges the MAC keys
securely. Then, security technologies are discussed with considering security, functions, and …