As the built-in networking and autopilot capabilities of cars continue to increase, the importance of embedded IT security for vehicle communications continues to increase. Infineon Technologies shares hands with ESCRYPT to develop automotive network security and introduce solutions that encrypt in-vehicle communications. It also takes into account future security needs and enhances security. The solution uses Infineon's second-generation AURIX (TC3xx) multi-core microcontroller family and ESCRYPT's specially tuned CycurHSM security software.
The reconciled software and hardware solution makes the electronic control unit (ECU) less susceptible to manipulation. There are about 60 ECUs communicating with each other inside the car today. As a result, this solution enhances IT security for applications such as wireless network update software (SOTA) and autonomous driving. Compared to a pure software-based approach, this solution is built with AURIX hardware and CycurHSM software for dramatic performance gains. Today, every TC3xx microcontroller has an integrated hardware security module (HSM) built in. Since the safety function is actually packaged within the HSM, the ECU's main controller can be fully focused on its mission.
This brings two benefits to ECU manufacturers: software and hardware solutions are easier to implement, comply with AUTOSAR standards, no additional security features are needed, and there is plenty of room to set up CycurHSM software. This turnkey solution reduces development costs for in-vehicle communication IT security by up to 90%. As a result, system vendor developers can focus more on their work and build high-end software for new applications.
The AURIX family of microcontrollers is a core component of automotive embedded security solutions that control communications procedures, perform monitoring and security operations, and support secure communication protocols. The key is generated in the HSM and stored in the HSM. The safe boot, flash memory and debug operations are all allowed by the HSM.
HSM also has symmetric and asymmetric encryption mechanisms (AES-128, ECC 256, SHA2), which can enhance tamper-proof functions, such as in-car software or data transmission inside and outside the car. In addition, HSM helps to avoid loading malware and unauthorized software updates.
ESCRYPT is the world's first provider of embedded security software systems, providing tailored software stacks for AURIX and HSM. CycurHSM performs hardware-based security functions such as data encryption and authentication, the use of Real Random Number Generator (TRNG), and encrypted flash memory. In addition, the solution provides security features such as execution time manipulation detection to monitor the authenticity of the application during the execution period.
Thomas Boehm, senior associate of Infineon Automotive Chassis and ADAS Microcontrollers Division, said: "AURIX microcontrollers are essential components for cars, now or in the future. Combining AURIX and reconciled CycurHSM software stacks ensures even further improvements The IT security in the car helps system suppliers to complete related development work more easily."
Frederic Stumpf, director of product management at ESCRYPT, points out that optimal IT security is a prerequisite for self-driving and connected cars: "By combining high-end hardware platforms like AURIX with the most advanced HSM software, we are working on today's cars. The industry offers cutting-edge models that meet future needs. Our cooperation with Infineon shows that car safety must be developed and considered through collaboration to produce the best results."
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