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

Enabling SBSFU security flags cripples my code

I've ported the SBSFU package for my user app. It works great when only read out protection is enabled. Everything works as it supposed to. However, when I activate other security flags random errors/problems arise in the code. For example, when I ac...

MHoss.1 by Associate III
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  • 9 replies
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How to Debug Code Executing from OctoSPI / OTFDEC in Keil MDK?

Hi guys,I'm currently utilising SBSFU as an external flash secure bootloader (with all security settings turned off for debug) using the STM32H7B3's OTFDEC (On-the-fly Decryption) peripheral.My user application boots and runs via the OFTDEC and memor...

ALowe by Associate II
  • 1919 Views
  • 4 replies
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What is de CRC16 used on SPI peripheral? the Polynomial is configurable, but the init value and reverse or not, is not documented.

I have a SPI on STM32F746 configured:/* SPI6 init function */void MX_SPI6_Init(void){ hspi6.Instance = SPI6; hspi6.Init.Mode = SPI_MODE_MASTER; hspi6.Init.Direction = SPI_DIRECTION_2LINES; hspi6.Init.DataSize = SPI_DATASIZE_16BIT; hspi6.Init.CLKPolar...

FMaro.1 by Associate II
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  • 1 replies
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X-CUBE-SBSFU installation issue inconsistencies

When comparing installation results with contents of Security_WS_Tools_Installation.pdf, there are the following inconsistencies: Running C:\STM32SecuWS\Tools\Other\CheckEnv.bat does not complete, as it requests STM32CubeProgrammer v2.5.0, whereas ST...

rongal by Associate II
  • 1194 Views
  • 4 replies
  • 0 kudos