STM32 MCUs Security
Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Forum Posts
Requesting to share SHA-256 crypto library example code.
Hi,Hope doing good.Can I have an SHA-256 crypto library example code?
Resolved! CRC8 with HAL for Stm32 and Python
I am quite new with embedded programming. I must implement CRC8 with HAL and have tried to implement the CRC8 in python at the other end. Have used the crc8 library but both results don’t match. Is there anybody who could give me a hand to implement ...
Can the STM32 CRC peripheral be made to work with the CRC-15_CAN polynomial?
Can the CRC for the ADBMS1818 (and other Analog Devices BMS parts) be generated using the STM32 CRC peripheral?The ADBMS1818 datasheet shows a 15 bit polynomial for the CRC as--x 15 + x 14 + x 10 + x 8 + x 7 + x 4 + x 3 + 1Other sources call this a C...
Crypto lib - how to load .pem file? I have to use a public key provided to me in a .pem file to encrypt an array of bytes. What is the easiest way to compile or include the .pem file into STM32CubeIDE project as an array of bytes?
Also, the crypto functions require a key made up of an exponent and a modulus. The examples only show these as two separate arrays. How do I get from a single array I have hopefully included from the pem file into these two separate arrays? What is t...
CRYP issue when Timer is used as Timebase Source
Hi, I have nucleo-h753ZI and I want to use CRYP in a project that also uses FREERTOS. I set Timer 6 as Timebase Source (recommended due to FREERTOS) and as a result, program goes to HardFault every time I use HAL_CRYP_Encrypt function.HAL_CRYP_Decryp...
Resolved! Where's the CRC and the size of the whole firmware application stored whenever a new application is flashed on to the System flash?
Does the controller perform a CRC confirmation check before running the application to check if the firmware is corrupted? If so, where does this happen; in the bootloader or the application itself? What does it do if the CRC turns out to be wrong? S...
Resolved! Management of OTA download of a corrupted binary in an STM32WB BLE application
Hi,I am currently working on a bluetooth application, on an STM32WB55 microcontroller, to which I have integrated OTA update functionality.As Loader I used the one present in the provided code examples.The application and downloads work properly, my ...
Resolved! How do I calculate the SPI CRC-16 in C?
How do I calculate the SPI CRC-16 in C? I have an STM32F429 sending me SPI data. These are the SPI settings:How do I implement a CRC-16 check implemented in C (not using STM32)?It is 16-bit data with LSB first. Polynomial X1+X3
How can I manually calculate the SPI CRC in C?
How can I manually calculate the SPI CRC in C? I can't seem to find any information about this.