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Security IC

For integration into CAN-based automotive networks

The Trustanchor100 (TA100) Cryptoautomotive security IC by Microchip supports a secure boot, CAN message authentication, and other built-in security features.

TA100 enables a quick integration of security into existing automotive networks, says the manufacturer. (Source: Microchip)

Due to the rise of in-vehicle network connections such as Bluetooth and LTE/5G, today's vehicles host more vulnerabilities than ever before, driving new cybersecurity regulations and specifications for the automotive market. In order to comply with the recent security specifications, automotive designers must rearchitect the vehicle’s electronic control units (ECUs) with secure hardware. Existing solutions in the market include single-chip dual-core hardware security module (HSM) devices, which require OEMs and their module suppliers to rearchitect their application software to integrate security. In addition to the effort required for this integration, the risk of security holes introduced in disparate implementations pose barriers through this path. Third-party security software can help overcome this barrier in part with increasing development costs.

The TA100 provides an alternative in-vehicle network architecture implementation for secure boot and message authentication. It has already been approved by multiple OEMs around the world as a solution for Evita Medium and Evita Full HSM requirements. Its feature set was designed based on several OEM cybersecurity specifications to help facilitate a Tier 1’s pursuit of OEM part production approval (PPAP). The chip supports an external hardware security module (HSM) for a secure boot, CAN message authentication, electric vehicle (EV) battery authentication, transport layer security (TLS), wireless power consortium (WPC) 1.3 Qi authentication, high-bandwidth digital content protection (HDCP), etc. The IC is pre-programmed with the built-in security and offers a true hardware key isolation.

According to the manufacturer, the chip is confirmed with high-resistance to attack through intensive third-party vulnerability assessments. It is AEC-Q100 automotive Grade-1 qualified, Fips 140-2 CMVP security level 2 rated, and physical key protection level 3 certified. The IC has also achieved the highest possible vulnerability assessment rating of Joint Interpretation Library (JIL) High. In addition, it provides software components such as Autosar drivers, MCALs and Microchip’s Cryptoauthentication library for integration into the industry standard operating system, Autosar, or customized software stacks for crypto functions.

“The TrustAnchor100 provides relief for automotive Tier 1s and OEMs when upgrading thousands of ECUs with security,” said Nuri Dagdeviren, vice president of Microchip’s secure products group. “Combining the TA100 and an integrated software stack provides production-ready software for our customers, enabling them to easily add security to any automotive module.”


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