STM32 MCUs Security

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Resolved! SBSFU: Issue with 16-byte alignment in linker script?

I've run into an issue with the section of the UserApp linker script which ensures that the binary size is a multiple of 16 bytes:.align16 : { . = . + 1; /* _edata=. is aligned on 8 bytes so could be aligned on 16 bytes: add 1 byte gap */ ...

crwper by Senior
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STM32WB35 - Can't write or read flash memory (J-Link)

Hello, I'm a bit stuck and I am not sure what to do so I am asking for your help.Here is the problem :I have a custom board with a STM32WB35 that was working fine for a while. But after multiple (incomplete) boot when I was soldering the battery to m...

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EJean.1 by Associate II
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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
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  • 14 replies
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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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Issue with AES and CKS

In my application, I have a sequence which looks something like this:Load an AES key from CKS using SHCI_C2_FUS_LoadUsrKeyCall HAL_Cryp_Init, HAL_Cryp_Decrypt, and HAL_Cryp_DeInit to decrypt a block of dataUnload the key from CKS using SHCI_C2_FUS_Un...

crwper by Senior
  • 575 Views
  • 6 replies
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[STM32WB55CEU6] AES-256 Decrypt Error

Decryption(AES-256) error after encryption(AES-256) signal network transmissionThe progress is as follows--------------------------------------------------------------------------------------------------------------​AES SettingsKeyEncrypt(board 1)Dec...

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Nemonas by Associate II
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  • 1 replies
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I am using STM32WB55 controller and Keil as development environment , Using mbedTLS library for SHA256 computation.(mbedtls_sha256_update function from library is used) After datasize of 256 bytes , incorrect SHA is obtained. Are there any additional depe

I am using STM32WB55 controller and Keil as development environment , Using mbedTLS library for SHA256 computation.(mbedtls_sha256_update function from library is used) After datasize of 256 bytes , incorrect SHA is obtained. Are there any additional...

VJadh.3 by Associate
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  • 1 replies
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