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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Forum Posts

How to Lock STM32L5

I am using STM32L5, In our project, we want to create one script which will lock the bootloader option and enable RDP to 0xCC to disable JTAG.We are using the SBSFU example as a base and developed our application on it.In script Regration.bat, 0xAA R...

PYada.1 by Associate III
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We use STM32L051C8T6 for mass production.STM32 has been programmed with an hex files. But it was found be locked and we cannot upload new files into them. Who know to unlock the chips?? Urgent!!!

We are right now using this MCU STM32L051C8T6 in a mass production up to 32.000 setsRight now we have met a problem,afer all 32000 pcs have been programmed with an hex file.I was found mcu have been locked and we cannot upload new files into them. 1....

Shullen by Associate
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  • 2 replies
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Resolved! Strategies for storing SBSFU private key

Hello,We have an STM32 project with SBSFU bootloader used for firmware updates. We have a pipeline that is triggered from GitLab that will compile and sign the firmware and update pakcage. Before taking production private keys into use, we are consid...

sute by Associate III
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Is it possible to set the option bytes in my firmware?

Hello everyone,I must start a production of PCBA which use the MCU STM32G474QET6 and I need to protect my firmware, I want to set the read protection at Level 1. Is it possible to set that option byte in the firmware when I flash the firmware?Thanks....

AAles.5 by Associate
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Is it possible that Cipher acceleration hardware module of STM32F756ZGT6 changed somehow from one shipping order to another ? Or maybe there are more recently or better files?

I have been using HAL library of cipher acceleration hardware before on the same mcu (first 100 units) without any problems, but in my last order, all mcu goes to hardfault error when i used exactly the same code on it (same binary file). By debuggin...

fosor.1 by Associate
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