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STM32 MCUs Security

Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.

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STM32 Pmbus Crc Integration

Hi i have a STM32G474. I want to build a pmbus on that.  The stm has a default CRC32 module.In pmbus for the pec calculation crc8 is using. Can i change my default crc32 module to crc8 for the usage on pmbus?

gunccc by • Associate II
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Resolved! Implement Key replacement package for Image signing Key ECCKEY1

The SBSFU framework allows users to employ multiple image signing keys, ECCKEY1, ECCKEY2, and ECCKEY3.Is there a method to blacklist ECCKEY1 and replace it with ECCKEY4, which may be transmitted via a key replacement update package if the private key...

Grogu by • Associate III
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Big packed BIN image if some code execute in ITCM.

I complie STM32F769I-Discovery 2_Images. the final SBSFU_UserApp image's size is 532kb, It's size will increase to 131,669 kb if ITCM used. I add below code to UserApp.sct ;ITCM 16k ITCMRAM_region 0x00000200 0x00004000 { fw_update_app.o (+RO...

tercelcn by • Associate II
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SECoreBin postbuild script incorrectly updates PATH

I'm using SBSFU v2.6.2 on a Windows 10 x64 machine with CubeIDE v1.11.0I was recently modifying the postbuild script in an SBSFU-based project and noticed it has a bug setting the PATH variable when looking for prepareimage executable:export PATH=$ba...

How to remove sbsfu code

Hi support team,i am testing the sbsfu code in P-NUCLEO-WB55 but i missed out to disable security ips SECBOOT_DISABLE_SECURITY_IPS and flash into the board it set RDP level to 1 also set SFU_WRP_PROTECT_ENABLE, SFU_TAMPER_PROTECT_ENABLE,SFU_DAP_PROTE...

asala.19 by • Associate III
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Resolved! SBSFU : how to remove write protection?

Hi,I forgot to comment the protections set in app_sfu.h and tried debugging the code. Later I realized and commented everything and it is not allowing me to flash the program on the device. I made RDP level 0 from cube programmer, but still write pro...

ANaga.2 by • Associate II
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