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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STSAFE-A120 / STSELib implementation

Hello,STSELib development is under progressToday (version 1.1.4), STSELib uses some services from STM32_Cryptographic library instead of interfacing STSAFE-A120 component (for example HKDF)Is there any development planning for STSELib giving availabi...

OEMiROT example flash protect sector problem

hello, I'm run a STM32H573DK in OEMiROT example.but following errors occured.[INF] TAMPER Activated[INF] BANK 1 secure flash [0, 15] : OB [0, 14][ERR] Unexpected value for secure flash protection so, I find why occurred this error.  In the ob_flash_p...

Choppa_0-1704185293412.png Choppa_1-1704187382348.png
Choppa by Associate II
  • 2045 Views
  • 6 replies
  • 1 kudos

Resolved! FW Signature check error due to hash mismatch

Hello @Jocelyn RICARD ,I’m integrating SBSFU v2.7.0 on an STM32WB55 to enable secure OTA firmware updates. I’m hitting a problem where the runtime hash verification fails: the hash computed by SBSFU at boot does not match the hash in the image header...

DenysK_0-1759246389237.png
DenysK by Associate II
  • 705 Views
  • 8 replies
  • 2 kudos

Resolved! How to enable the STM32 H series microcontroller from accessing read and write through debugger and USB for unauthorized user

To secure USB against unauthorized usage while maintaining regular operation, implement authentication and encryption for all USB communication, ensuring only authorized devices or users can access the interface for parameter and log management, open...

Resolved! STM32 AES GCM Tag mismatch

Hi,I am trying to send encrypted data between a C# application and STM32 in AES GCM mode.Currently, I am only doing encryption of a known test vector.Key and IV are both all zeros.AAD length is 0.My testvector is: 00 00 00 00 00 01 00 00 00 00 00 00 ...

Dimlite by Associate III
  • 321 Views
  • 3 replies
  • 1 kudos

STM32H573 code protection

How can the debug interface on the STM32H573 be permanently locked via nonvolatile configuration or fuse?The SBS chapter of the manual saysThe debug configuration can be locked thanks to DBGCFG_LOCK in SBS_DBGLOCKR.SBS_DBGCR is then no longer writabl...

abba by Associate II
  • 316 Views
  • 3 replies
  • 0 kudos