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Vehicle Security means protecting potential threats, unintended malfunction and illegal tuning. In addition, it has become a more important issue on an automotive system as it is directly connected to the driver and pedestrian's life. Automotive industry significantly needs to enhance security policies to prevent attacks from hackers. Nevertheless, in some systems, performance still has to be considered at first when security functions are implemented. Especially, in case of Engine Management System (EMS), fast engine synchronization for starting should be considered as the first priority. This paper is intended to show an approach to design efficient secure boot implementation for EMS. At the beginning of this paper, the concept of secure boot is explained and several use cases are introduced according to execution modes, such as the foreground and background secure boot modes. As a next step, engine starting process by EMS is explained.

Cyber security is becoming increasingly critical in the car industry. Not only the entry points to the external world in the car need to be protected against potential attack, but also the on-board communication in the car require to be protected against attackers who may try to send unauthorized CAN messages. However, the current CAN network was not designed with security in mind. As a result, the extra measures have to be taken to address the key security properties of the secure CAN communication, including data integrity, authenticity, confidentiality and freshness. While integrity and authenticity can be achieved by using a relatively straightforward algorithms such as CMAC (Cipher-based Message Authentication Code) and Confidentiality can be handled by a symmetric encryption algorithm like AES128 (128-bit Advanced Encryption Standard), it has been recognized to be more challenging to achieve the freshness of CAN message.

These days in automotive industry, AUTOSAR has been increasingly used as a standard and unified software platform as vehicle electronics have becoming more variety, more performance and more complicated. MCAL is a software driver which belongs to lowest level in AUTOSAR software structure. MCAL directly access the microcontroller hardware and is provided by microcontroller supplier like Infineon to handle microcontroller peripherals. And in cases for special dedicated functions of microcontroller or for special requirements, Complex Device Driver could be used as legacy software instead of MCAL. The paper is structured as follows: First, the SPI requirements for vehicle applications such as chassis will be shown. Then, the current AUTOSAR specification for SPI MCAL will be explained in detail. Next, the sequential SPI communication and the parallel SPI communication with multi-nodes will be discussed.