Secure Firmware Updaters on STM32 MCUs

A standalone Secure Firmware Updater provides secure offline, on-premise firmware (FW) updates for industrial devices. The product is designed to make secure FW updates, providing a security layer in front of a target device and using encrypted firmware, TrustZone® technology, and a secure element chip in the process to ensure only authentic tamper-free FW can be updated and taken into use.

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Key features of Secure Firmware Updater

  • Secure and tamper-proof FW update process 
  • Authentic FW verification 
  • USB / offline FW updating 

Custom features: 

  • Custom integration with target device 
  • Custom FW updater logic 
  • Custom MCU flashing of the target device 

Supported microcontrollers and hardware

Security features of Secure Firmware Updater

Family

MCU device

Secure element

TrustZone®

Secure Boot

PCROP

Data signing

Data encryption

STM32F4

STM32F446RE

STSAFE-A110

N/A

Custom feature

Yes

Yes

Yes

STM32U5

STM32U575ZI

STSAFE-A110

Yes

Yes

N/A

Yes

Yes

STM32L5

STM32L552ZE

STSAFE-A110

Yes

Yes

N/A

Yes

Yes

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