STM32 MCUs Security

Firewall reset when accessing unprotected SRAM1 memory, STM32L4R9

Hello, I've adapted SBSFU (X-CUBE-SBSFU) example projects for a STM32L4R9 in single bank (flash) mode. I get a firewall reset when accessing SRAM1 that's outside of the defined protected area. Only a small section of SRAM1 is protected by the SBSFU ...

Resolved! Firmware image size required for AES CBC encryption

I am trying out the sample projectSTM32CubeExpansion_SBSFU_V2.2.0/Projects/NUCLEO-H753ZI/Applications/1_Image.I have completed the following build steps:prebuild.pyBuild SECoreBinBuild SBSFUBuild UserAppThe last step postbuild.py (which is SECBOOT_EC...

Resolved! Secured boot with a secured & non-secured application

Hello,I now understand that I should have asked the question differently.Let's say we have 2 applications: secured and non-secured application.The secured is placed in inetrnal flash, just as done in the demo of SBSFU,But the non secured should be pl...

Minimal demo of STM32H753 Secure Access mode

Dear experts,I'd like to try the Secure Access mode of H753, but overwhelmed by the SBSFU and SFI documentation.I'm thinking about a minimal test for the "secure user memory" - without SFI, Secure Package Creator etc., or as little as possible:Burn a...

Is it possible to download firmware again after trying out the SBSFU projects?

I tried the SBSFU examples (did not change any code) on a NUCLEO-L476RG board and it worked fine. Now I can not use STM32CubeProgrammer to connect the board. Is there any way to download a new firmware ( I mean, a firmware to replace the SBSFU firmwa...

Resolved! How to add X-CUBE-SBSFU into STM32CubeMX, so that it can be added into the projects as a software component?

I have the zip file for X-CUBE-SBSFU. But I don't know how to add it to STM32CubeMX. I tried install from local on embedded software packages manager. But it did not work.Thanks!

This question about SBSFU software package from ST official website,and I download the SBSFU package to my stm32f413,I find the JTAG HW interface is forbidden ,how can i do to download other programmer?

Resolved! MPU configuration in combination with sbsfu (secure boot and secure firmware upgrade) package.

I'm currently porting an existing project so it can be updated using the sbsfu bootloader project from ST. My userproject is using the MPU to protect the ethernet tx and rx descriptors from ending up in the d cache. However, if i enable the MPU the F...

Resolved! Port the SBSFU to STM32F730 in XiP mode

Hi, I just went over the X-Cube-SBSFU material and tried to compile the example projects to get an overall picture of this function.The MCU I used is STM32F730I8 and I am using the STM32F7308-DISCO board.As only 64kB flash is available in STM32F730 s...

Resolved! Since the SBSFU doesn't work for all processors, is there a document on how a secure boot process would work with the TPM chip as the root of trust entity?