[ASSP／ASIC][Security Technologies(Encryption/Decryption, etc.) ][Universities/Research Organizations][Semiconductor Devices in IoT][Wireless Sensor Networks/M2M Techonologies][Securiy/Authentication Technologies]
The research and development of connected vehicle with self-driving system is getting very important, however, attacking against in-vehicle network such as CAN have been reported by researchers. A worldwide development partnership of automotive technologies named AUTOSAR (AUTomotive Open System ARchitecture) proposed to apply the message authentication code (MAC) which realizes secure CAN communication. The hardware security module (HSM) including symmetric cryptographic circuit and secure key storage, is required on ECU. We have developed HSM which provides tamper-resistant cryptographic circuit and physically unclonable functions (PUF) as a secure key storage. In this exhibition, we will demonstrate the tamper resistance of our HSM. When a conventional microcontroller without HSM is used for secure CAN communication, the cryptographic key is easily revealed by the side-channel attack (SCA). In contrast, our HSM module is resistant against SCA since HMRD-ROM AES-128 circuit is used for symmetric cryptography as a countermeasure.