STMicroelectronics 2024 5
Creating Compliant Devices
To meet market expectations and to comply with tougher
incoming legislation, device manufacturers need to
ensure that the platforms and ecosystems powering their
development can enable them to certify their products
successfully.
ST's latest STM32 wireless microcontrollers (MCUs) are
at the heart of next-generation devices that must satisfy
legislation such as EU RED and U.S. Cyber Trust Mark. In
fact, this product is already certifiable according to SESIP
Level 3.
Designers using ST wireless MCUs, such as the
STM32WBA5 series, can take advantage of hardware
features built into the silicon when creating wireless IoT
devices. Security starts with the Arm
®
Cortex
®
-M33 core—
designed with Arm's TrustZone
®
architecture that allows an
isolated secure area—running on a secure operating system
and preventing access by non-secure software. TrustZone
ensures security begins from the lowest level, the physical
layer, which includes securing the boot and firmware update
processes.
STM32WBA5
Multiprotocol
Wireless Radio
MCU
Learn More
Moreover, the MCUs are compliant with the
Arm Trusted Base System Architecture (TBSA),
which requires hardware features including a
root of trust (RoT), protected keystore, random
number generator to support cryptography,
and hardware cryptographic acceleration.
These components ensure the correct
security properties and can be maintained
without compromising real-time application
performance. The STM32WBA5 MCUs
include a secure AES coprocessor and public
key accelerator (PKA), both incorporating
resistance to differential power analysis (DPA),
and a HASH hardware accelerator.
The MCUs also support secure firmware
updates for over-the-air or local updating of
