Is it possible to implement secure boot without using trust zone for stm32U585??

Hi,

Yes, it is possible to implement secure boot without using TrustZone for STM32U585. The STM32U585 microcontroller supports a range of security features including Boot lock, OTP, and secure address space which can be used to implement secure boot.

The STM32Cube MCU Package provides a Secure Boot and Secure Firmware Update solution for STM32 microcontrollers. This solution is based on the open-source TF-M reference implementation.

Regards

Thanks for Response.

I would like to know can we port the SBSFU along with Secure Engine (STM32CubeExpansion_SBSFU_V2.6.2) of STM32H7 series to STM32U5?

The idea is to have a common bootloader for STM32U5 and STM32H7 based on SBSFU package provided for STM32H7(STM32CubeExpansion_SBSFU_V2.6.2) & trying to avoid using TF-M based package, since STM32H7 doesn't support TF-M