Isolating MCU hardware and firmware using TrustZone security technology

In the IoT and connected device marketplace, device security is paramount to protect customer information and to prevent outside attacks.

The new STM32L5 series MCU based on ARM Cortex M33 core with TrustZone technology is part of the STM32Trust Security Ecosystem, where the TrustZone is a dynamic firewall providing hardware and software isolation to the system. Developers can isolate critical security firmware, authentication and private information from other parts of the device. The STM32L5 provides crypto accelerators for Public Key, AES, Hash and a True Random Number Generator and On-the-Fly Decrypt for external memories. The STM32L5 can provide secure boot with Root Secure Services and TF-M (ARM PSA compliant Trusted Firmware) with a unique boot entry, providing a secure framework to base the system on "Root of Trust". The new series further pushes the low power footprint of our already class leading devices while offering new peripherals (USB Type C & PD) and power management innovation allowing for a class leading 62uA/MHz current consumption.

You will learn:

• The new features and peripherals in the STM32L5
• Understand how to create a "Root of Trust" with the STM32L5 Security features
• How to use STM32 Trusted Package Creator
• How to interface to other ST products (NFC) for a digital signature verification application