STM32 MCUs Security
Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Forum Posts
AES Cryptolib encrypted data doesn't decrypting by any other libraries on other platforms except Cryptolib itself
Hello everyone! I encrypt the data with the AES-256 ECB algorithm using the X-Cube-Cryptolib library, while the library itself can decrypt the data correctly, and third-party libraries decrypt it incorrectly. I use 32 random bytes as the key.I tried ...
SBSFU Algorithms
Hi All,Currently I used SBFU solution to develop project , I had checked the AN2262 that descript SBSFU support below picture.1.My question is how to enhance below encryption strength or any application I could reference, does it need modify SE engi...
STM32G070KB with RDP set to level 1 with J-Flash kills the device.
Hi!Can someone explain to me why this code:// Is FLASH_CR register locked for writing? if (FLASH->CR & FLASH_CR_LOCK) { // Unlocking FLASH_CR register FLASH->KEYR = KEY1; FLASH->KEYR = KEY2; } // Unlocking FLASH option register if (FLASH->CR & F...
Resolved! I'm not able to make working the NUCLEO-L432KC example
I wont to test the L432KC example on a NUCLEO-L432KC board"\SBSFU\STM32CubeExpansion_SBSFU_V2.6.0\Projects\NUCLEO-L432KC\Applications\1_Image"I have created correctly a new workspace and imported the necessary projects. All compiles fine and I get "S...
Resolved! STM32G0 CRC16 mismatch.
Hi,I am trying to run the CRC calculation with the STM32G031 but the results do not match. The result of the CRC16_CCITT_FALSE should be 0x29B1 according to http://www.sunshine2k.de/coding/javascript/crc/crc_js.html but I get 0x277F.You can find my i...
Resolved! Serial DFU of Secure Firmware Fails
I'm attempting to use the serial bootloader to load a secure firmware image to an STM32L5 using STM32CubeProgrammer. I can successfully connect to the board in bootloader mode and perform a full-chip erase, but attempting to download the image (eithe...
Resolved! STM32H753 with "secure area": how to un-brick?
So I have a STM32H753 with active "secure area" - but the code in the secure area is buggy and hangs before jumping outside.Is there a way to erase the MCU and recover, or it is bricked?No RDP is set.
CRC Calculation for 8-bit values
I am experimenting with CRC Calculation on a STM32F4-Discovery.As I have seen in the reference manual this MCU is using CRC-32 used in Ethernet. I am also using https://crccalc.com/ (CRC-32/MPEG-2) to validate the results.I just activate the CRC in C...