Infineon and ETAS collaborate for automotive cybersecurity upgrade

Munich and Stuttgart, Germany – 29 April 2024 – Infineon Technologies has integrated the ESCRYPT CycurHSM 3.x Automotive Security Software Stack into the AURIX™ TC4X Cybersecurity Real-time Module (CSRM) in collaboration with ETAS. With this next-generation solution bundle, ETAS and Infineon strive to optimize security levels, performance, and functionality. As the automotive industry transitions to software-defined vehicles and new E/E architectures, the demand for high-performance hardware and robust cybersecurity solutions increases, this collaboration has done to address this requirement.

“One of the strengths of our AURIX offering is the deep level of integration of our partners’ software solutions,” said Thomas Schneid, Senior Director Software, Partnership and Ecosystem Management at Infineon Technologies. “We are delighted to deepen our partnership with ETAS. This will further advance the development of software-defined vehicles.”

“We are excited to open a new chapter in our long and successful collaboration with Infineon,” said Rohan Pandit, Product Manager Onboard Security at ETAS. “The integration of the latest version of ESCRYPT CycurHSM with the AURIX microcontroller family will enable software-defined vehicles to meet increasing performance requirements while providing robust security.”

The AURIX TC4x family is compliant with the latest ISO/SAE 21434 cybersecurity standard. The security concept eliminates performance bottlenecks and supports post-quantum cryptography. The controller family includes a Cybersecurity Real-time Module (CSRM) with dedicated memory and a Cybersecurity Satellite (CSS). Moreover, the CSS provides accelerators for cryptographic services. Executing these tasks in parallel with ESCRYPT CycurHSM 3.x can significantly improve throughput.

Virtualization support additionally allows configuring multiple virtual instances, enabling the running of several applications in parallel. ESCRYPT CycurHSM 3.x uses this feature to enable flexible boot-up sequences and independent dynamic updates for each virtual instance. Furthermore, access control can configure granularly, assigning individual ASIL levels to virtual instances, facilitating diverse security applications for each.


ESCRYPT CycurHSM 3.x has already secured the first device of the new Infineon TC4X series. The hardware compatibility of CSRM and CSS enables a smooth porting of ESCRYPT CycurHSM 3.x. Moreover, other derivatives of the TC4X family can undergo this process, depending on market requirements and device availability.

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