STM32 MCUs Security

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Where is the YMODEM code located for SBSFU?

What .c file has the code for the YMODEM portion of the SBSFU pictured below ?I have found the string "File> Transfer> YMODEM> Send" a few times, but when I changed the string to test if I found the correct area, nothing changes in the picture above....

0693W00000GW7cAQAT.png 0693W00000GW7dXQAT.png
FWguy by Associate II
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LInk Errors libSTM32Cryptographic_CM0_CM0PLUS.a

Hi, I am implementing ECDSA signing functionality based on some sample code in the package en.STM32CubeExpansion_Crypto_v4.0.1. I am getting the following linker error. What am I missing? Thanks! c:\st\stm32cubeide_1.6.1\stm32cubeide\plugins\com.st.s...

RKher.1 by Associate III
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Resolved! Hello, I'm curious to know how to add a secure boot feature on the STM32429I-EVAL1. I would like to allow the boot on a bootloader located in the flash memory, only if this one is known by the internal bootloader.

I'm trying to add a authentication mechanism with a symmetric key stored in the system memory but I'm not sure if it's the right way and i also don't know how to store this key in the system memory.I read about SBSFU but not sure about it.Kindly advi...

Jmail.1 by Associate
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YMODEM transfer single file, then split into two files

I'm using YMODEM in TeraTerm to transfer my internal and external firmware and my goal is to make this a single file. I have already combined the two files into a .bin and when I transfer them via YMODEM, the transfer stops once it reaches the end of...

FWguy by Associate II
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Error when jumping to user app

Hello everyoneSo I've managed to adapt and build my custom user app. Flashed it into the device.But it fails on startup somewhere between gpio and timers initializations in main().Console shows the following text:= [TEST] write 8 bytes @ Isolated cod...

leeana by Associate III
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Resolved! Hardware Semaphores for SBSFU in STM32WB

Hello guys,I've implemented SBSFU along side with an USB standalone loader for my project using a STM32WB. My question is, should i implement hardware semaphores and shci_notification for CPU2 during flash erasing and writing operations on my USB ext...

MBuen.1 by Senior
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