Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hello. AllI'm using STM32L151 MCU, stm32 crypto library v.3.0.0.I implemented CMAC according to the sample code but it returned "AES_ERR_BAD_CONTEXT". I could not find any reason.. please let me know to solve this problem.!!Here is my code for CMAC e...
I am trying to use the hardware CRC built into the embedded flash module. When I use the start and end addresses and kick off the CRC, the processor halts and I have to do a full flash erase to get it back. Are the start and end addresses relative ...
I have been using the STM32 serial bootloader, instead of coding my own bootloader, for a while now. But lately I wanted to protect my code, so I tried to enable readout protection (RDP) level 1. This is meant to prevent the user to read the flash. H...
Hi everyone,we have a bootloader that writes new application code to the flash bank 2 in an STM32H7 and afterwards swaps the banks to execute the new code. The procedure for swapping is something like this: unlock OPTLOCK set SWAP_BANK_OPT set ...
Hi, I am wondering if the build-in TRNG modules in the STM32L series (0, 1,2 ,4, 4+ and 5) are compliant with the NIST 800 90A/B/C standards. If so, where I can find information on ST stating such TRNG complies with this standards? We are developing ...
Hello, what wouldd be the best library to create private/public keys (RSA) and sign some messages ? I did not find a free library able to create and sign messages even in the smt32 crypto lib. Any clues ? Thank you in advance
Could someone elaborate on the tradeoffs of cryptographic scheme selection, especially between Asymmetric with AES encryption and Symmetric (AES GCM) ?While it is the default choice, it is not clear to me why SECBOOT_ECCDSA_WITH_AES128_CBC_SHA256 wou...
I'm taking STM32Cube and the CRYP example for NUCLEO-L496ZG as the basis for a new HW AES encryption Arduino library. I'm currently developing for the STM32L476 MCU and here I found the first problem since stm32l476xx.h does not seem to include the n...