STM32 MCUs Security

In STM32L4 for CRC, what does it mean "Even polynomials are not supported"

In the Reference Manual for the STM32L41xxx/42xxx/43xxx/44xxx/45xxx/46xxx MCUs for the CRC Unit, it casually mentions "Even polynomials are not supported." But what does this exactly mean? Does it mean polynomials which have even parity are not suppo...

include Crypto Library in STM32CubeIDE

hello,This is an old thread but I hope to get an answer here.I'm using NUCLEO-L496ZG-P, and I have data to decrypt (AES128 CBC).I'm using the STM32CubeIDE to compile.I'm trying to use the Cryptolib but didnt get how to do so. I did download "en.x-cu...

HAL Problems with SPI(slave) + DMA + CRC(hardware) in stm32f373

I'm using a STM32F373 microcontroller as SPI slave and can't make it work properly using CubeMX and HAL functions.Master side is OK, confirmed in scope that byte string and calculated CRC for Tx are as expected.Slave side is programmed to transfer vi...

How to add STM32 cryptographic library in a project using kiel IDE??

When using X-cube-sbsfu, why is swap area size constrained to be at least equal to the size of the largest flash sector? Is there a way to modify SBSFU to work with a smaller swap area?

On STM32F746, largest sector is 256K and total flash size is 1M. This means that 1/4th of our flash is lost to the swap area. As a result, we do not have enough flash memory left to implement the dual image variant. We are now trying to optimize the ...

How to make X-CUBE-CRYPTOLIB V3.1.0 to perform AES-192 encryption compatible with other online tools?

I am using X-CUBE-CRYPTOLIB V3.1.0 on STM32L0 to perform AES-192 encryption with a 192-bits key and 128-bits IV. Encrypted Data by STM32L0 can be correctly decrypted by STM32L0 using the same library.However, when I copy the encrypted data, key and I...

What is the exact expected sequence for the YMODEM protocol used in IAP and SBSFU?

Hello,for some STM32 controllers ST offers for application-update the IAP and SBSFU modules:https://www.st.com/en/embedded-software/x-cube-iap-usart.htmlhttps://www.st.com/content/st_com/en/products/embedded-software/mcu-mpu-embedded-software/stm32-e...