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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Resolved! STM32U5 - SBSFU

Good Morning,I am working on the Secure Boot using STM32U5 with this repository : https://github.com/STMicroelectronics/STM32CubeU5/tree/main/Projects/B-U585I-IOT02A/Applications/SBSFUI am trying to add a kind of "Dev. Mode" which authorise the boot ...

lotou by Associate II
  • 639 Views
  • 1 replies
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Resolved! Certificate chain

Hello there,I am practicing with the STM32H573I-DK demo board, STiROT demo project and the chain of certificate feature.I have built a chain of certificates as described in https://wiki.stmicroelectronics.cn/stm32mcu/wiki/Security:How_to_start_with_S...

CRE by Associate II
  • 713 Views
  • 3 replies
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How to replace .obk for STM32H523

Hi, I have locked out my MCU. I generated a Debug Authentication file with certificate (DA_Config.obk) and provisioned that into the MCU. However, I think I have regenerated a private key without regenerating a certificate. I am no longer able to do ...

hakeila by Associate III
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  • 7 replies
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STiROT provisioning on stm32h533

Hello ST Community,I’m working on a project using STiROT with TrustZone on an STM32H533, based on the example STiROT_Appli_TrustZone provided in the STM32Cube_FW_H5_V1.5.0 firmware package for the STM32H573. I adapted this example to the H533 and gen...

lautiq by Associate II
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  • 2 replies
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Resolved! postbuild for OEMiROT project H523

Hi, I have managed to extract the OEMiROT project from H533 into H523 and compiled it successfully using STM32CRYPTO library since H523 does only have limited cryptography accelerator. I have modified the flash_layout.h to match my application (which...

hakeila by Associate III
  • 760 Views
  • 1 replies
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SHCI_C2_FUS_LoadUsrKey doesn't load AES1 key registers

Hi allI'm working on a STM32WB55 nucleo boardI'm designing a simple Signing procedureAt beginning I've try that every thing ok by using a hard codded key and now I want to switch on a key kept secure in FUS zoneI've load 2 256 bits AES keys into FUS ...

oga by Associate III
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  • 2 replies
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STSAFE-A110

Hello All,,  I am using STSAFE-A110 with stm32f429zit6 for secure boot, I want sample code / library for the same. Also my another query is will I have to sign the firmware using openssl externally. can anyone provide me complete step to finish the s...

STM32WB55 CPU2 HardFault for unknown reason.

Hey guys, how are you?It's been a long time that i'm facing a issue with STM32WB CPU2, most of the times i just fix it without really knowing the cause of it. Basically what happens is after power-up CPU2 simply won't initialize on the first try. I h...

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MBuen.1 by Senior
  • 7031 Views
  • 15 replies
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Resolved! SBSFU/TFM debugging on M33 (U5) with TrustZone

Hello,after being busy with some other stuff, we are finally back to face problems with secure bootloader integration.What we learned so far (our learnt points could be wrong and corrections would  be greatly appreciated):ST provides a very nice Cube...

bear2023R by Associate III
  • 1208 Views
  • 1 replies
  • 0 kudos