As the networking and autonomous driving capabilities of vehicles continue to evolve, the need for robust embedded IT security in automotive communications becomes more critical. Infineon Technologies is partnering with ESCRYPT to develop advanced automotive network security solutions that secure in-vehicle communication. These solutions are designed not only for current needs but also to adapt to future challenges, ensuring long-term protection.
The joint solution leverages Infineon's second-generation AURIX (TC3xx) multi-core microcontroller family, combined with ESCRYPT’s CycurHSM security software, which is specifically optimized for automotive use. This hardware-software integration offers a powerful and efficient approach to securing vehicle systems.
The image below illustrates how the AURIX microcontrollers enhance data security in vehicle communications:
This integrated solution makes electronic control units (ECUs) more resistant to tampering. With over 60 ECUs communicating within a modern vehicle, the system significantly improves IT security for functions like over-the-air (OTA) updates and autonomous driving. Compared to traditional software-only approaches, this hardware-based solution delivers superior performance and reliability.
Each TC3xx microcontroller includes an integrated hardware security module (HSM), which handles critical security tasks such as safe boot, flash memory protection, and debug operations. This allows the main controller to focus entirely on its primary function without being burdened by security management.
For ECU manufacturers, this turnkey solution offers several advantages: it is easier to implement, compliant with AUTOSAR standards, and requires no additional security features. It also provides flexibility in deploying CycurHSM, reducing development costs for in-vehicle communication security by up to 90%. This enables developers to concentrate on creating high-quality software for next-generation applications.
The AURIX microcontroller family plays a central role in automotive embedded security. It manages communication protocols, performs monitoring and security operations, and supports secure communication standards. Key generation and storage take place within the HSM, enhancing overall system integrity.
The HSM supports both symmetric and asymmetric encryption mechanisms, including AES-128, ECC 256, and SHA2, which strengthen anti-tampering measures for in-vehicle software and data transmission. It also helps prevent malicious software and unauthorized updates from compromising the system.
ESCRYPT, a leader in embedded security software, provides tailored stacks for AURIX and HSM. Their CycurHSM software handles hardware-based security functions such as data encryption, authentication, and encrypted flash memory. It also includes features like real-time execution manipulation detection, ensuring application authenticity during runtime.
Thomas Boehm, Senior Associate at Infineon’s Automotive Chassis and ADAS Microcontrollers Division, emphasized: “AURIX microcontrollers are essential for today’s and future vehicles. Combining AURIX with CycurHSM ensures even greater improvements in IT security, helping system suppliers streamline their development processes.â€
Frederic Stumpf, Director of Product Management at ESCRYPT, added: “Optimal IT security is crucial for self-driving and connected cars. By pairing high-performance hardware like AURIX with advanced HSM software, we’re delivering cutting-edge solutions that meet current and future demands. Our collaboration with Infineon shows that car safety must be developed through teamwork to achieve the best results.â€
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