STM32 MCUs Security

Endianness of 'in the air' data bytes on STM32WLE5 - I asked this question before but did not get a definitive answer. So hoping someone here can answer now. I can get no response from STM online support. HOW DOES ONE GET AN ANSWER FROM STM ??

We are evaluating if we can use the STM32WLE5, to interface to existing devices .A critical factor is the expected endianness of the data. I have seen no reference in the docs if this can be set, so I have provided an example message and would like t...

Usage of STM32 crypto library (UM1924) on STM32WB

Hello,one question (or feature request):I try to use the STM32 crypto library (v1.3.1 software implementation) on STM32WB. I activated the RNG and CRC but the calculated results (encryption/decryption, cmac) are not ok. Are there other things to do?I...

How can I calculate CRC of image in post build?

Hello,I want to calculate the CRC (32 bit) of image at post build and insert it in a known location in the image.In order to do it I should perform the following steps:a) Definition of placeholder in linker script fileb) Post build steps: b.1) Ca...

Crypto peripheral on STM32H745

HiI want to use the Cryptographic peripheral on the above nucleo board, in the following way.Serial message from embedded board-->H745 crypto engine-->wireless transmission-->Decrypt packet on remote x86 laptopAnd the reverse direction tooSo clearly ...

CRC Generating Polynomial doesn't work

Hi!I'm triying to set the CRC-16-IBM: X16+X15+X2+1, but CUBEMx does not allow it. In fact, I cannot introduce any polynomial.Is it a CUBE issue? How can I introduce the CRC-16 IBM polynomial ?Thank you

Has anyone used the STM HAL CRYP functions to generate AES-GCM Nist test vector matches

How to do: CRYP peripheral on STM32WB

HelloIn STM32 Crypto Library, there are function "AES_CMAC_Encrypt_Init", "AES_CMAC_Encrypt_Append" and "AES_CMAC_Encrypt_Finish" to calculate the authentication code of a plain text.How can this be done on STM32WB using the CRYP peripheral (HAL driv...

Endianness of 'in the air' data bytes

We are evaluating if we can use the STM32 to interface to existing devices. The critical fator is the expected endianness of the data. I have seen no reference in the docs if this can be set, so I have provided an example message and would like to kn...

SBSFU USB Local Loader STM32F4xx

Hi i was wondering how i should go about implementing USB instead of UART to download the firmware in the SBSFU bootloader. I have successfully managed use USB in DFU mode to install a new firmware.

Debugging bootloader + app: How to get a CRC header to the target, too?

I have a workspace in CubeIDE that has two STM32F0 projects: A bootloader and an app.To be able to debug both, bootloader, and then jumping through to the app code, I made an additional Debug Configuration where I added the source folder, and the sym...