Renesas Extends IoT Security Leadership for RA Family MCUs

Advanced semiconductor solutions supplier Renesas Electronics Corporation has announced both PSA Certified Level 2 and Security Evaluation Standard for IoT Platforms (SESIP) certifications for its RA Family of 32-bit Arm® Cortex®-M microcontrollers (MCUs).

March 10, 2021. By Manu Tayal

Advanced semiconductor solutions supplier Renesas Electronics Corporation has announced both PSA Certified Level 2 and Security Evaluation Standard for IoT Platforms (SESIP) certifications for its RA Family of 32-bit Arm® Cortex®-M microcontrollers (MCUs).

Renesas’ RA6M4 MCU Group devices with the Flexible Software Package (FSP) have been PSA Level 2 certified, expanding on the PSA Certified Level 1 achieved by RA4 and RA6 Series MCUs. Renesas’ RA6M3, RA6M4, and RA4M2 MCU groups have achieved SESIP1 certification with Physical and Logical Attacker certifications.

In addition to these widely recognized industry certifications, Renesas RA MCUs offer customers the ultimate IoT security by combining Secure Crypto Engine IP with NIST CAVP certifications on top of Arm TrustZone® for Armv8-M. RA Family devices incorporate hardware-based security features from simple AES acceleration to fully-integrated crypto subsystems isolated within the MCU.

The Secure Crypto Engine provides symmetric and asymmetric encryption and decryption, hash functions, true random number generation (TRNG), and advanced key handling, including key generation and MCU-unique key wrapping.

An access management circuit shuts down the crypto engine if the correct access protocol is not followed, and dedicated RAM ensures that plaintext keys are never exposed to any CPU or peripheral bus.

Commenting on the development, Roger Wendelken, Senior Vice President in Renesas’ IoT and Infrastructure Business Unit, said “Renesas understands that security is essential for IoT designers, so we have engineered the RA Family from the ground up with security in mind.”

“These industry certifications augment what is already the most secure device family in the industry for IoT applications,” Wendelken added.

Carlos Serratos, Senior Director of Strategy, Policy and Advocacy at Brightsight, said “we are glad to work with Renesas on the SESIP and PSA Certified certifications. Renesas RA Family certifications are prime examples of the relevance of security standards for the industry.”

Serratos also said “from an OEM perspective, there is an increasing awareness of the value of certified devices as a tool for managing risk, and for aligning with multiple device certifications. While this is particularly relevant for devices used in critical infrastructures, it is steadily becoming the norm for the rest of the IoT domain.”

PSA Certified offers a framework for securing connected devices, from analysis through to security assessment and certification. 

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