STM32 MCUs Security

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Catching and clearing BusFaults in STM32 H743

We are having issues with corrupted flash on the STM32 H7 series. The problem manifests where a read to the offending address in flash will cause a bus fault. We think it is down to bad CRC and the way to resolve is usually to wipe the flash and repr...

APipe.2 by Associate
  • 1 replies
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Resolved! How to enable debugging of SECoreBin application

Hi,I tried to execute my custom SBSFU_UserApp.bin on the STM32H7B3I-DK board and I get error for Header signature verification failure in slot SLOT_ACTIVE_1. I have made changes in se_crypto_bootloader.c file for adding RSA signing verification in pl...

Ikbal by Associate II
  • 15 replies
  • 0 kudos

WRITE_REG macro not working

I'm currently trying to use the CRC peripheral on an STM32G474, and when running HAL_CRC_Calculate(), the computed checksum is always zero. Doing some debugging into the HAL_CRC_Init() function, I've found that when the WRITE_REG macro is called, no...

0693W00000WI9NhQAL.png 0693W00000WI9PEQA1.png
DPard.2 by Associate
  • 1 replies
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STM32Cube_FW_WL_V1.2.0, application LoRaWAN_SBSFU_1_Slot_DualCore. Bug in the MPU configurations??? (file .\2_Images_SBSFU\CM4\Inc\sfu_low_level_security.h)

I'm creating a new lora project starting from STM32Cube_FW_WL_V1.2.0, application LoRaWAN_SBSFU_1_Slot_DualCore.I reserved some space (from 0x0801A000 to 0x0801BFFF) for some configurations. I modified the file mapping_fwimg.ld like below.\STM32Cube...

G.Buldo by Associate
  • 2 replies
  • 1 kudos

For the Cortex M-33 products can I use my own RNG?

This is a general question on the Cortex M33 product with hardware encryption. I would like to use my own random number generator rather that the one that is embedded with the core in order to generate my AES key(s). Is that possible or am I restri...

TVale.1 by Associate II
  • 3 replies
  • 0 kudos

Resolved! How to process RDP regression from appplication code?

Hi,for my application I need to set RDP regression from my application code :1) Is it possible in RDP2 to provide OEM Key (for regression) from application code in order to restore JTAG access (and perform a regression whith a user intervention)2) Is...

Aurelien1 by Associate III
  • 4 replies
  • 0 kudos