Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
I am using an STM32L4S9ZIJX part and attempting to encrypt a 256KB buffer (actually 262,144 - 16 = 262,128 bytes) using AES256 CTR mode in polling mode.I created a wrapper function to perform the encryption: int encrypt_CTR_mode(uint8_t* key, uint8_t...
Hi everyone!In our project for stm32f446, we are trying to use X-CUBE-CRYPTOLIB to verify the firmware signature on the device using ED25519. Unfortunately, when trying to call the cmox_eddsa_verify method, we get the CMOX_ECC_ERR_MEMORY_FAIL error. ...
I'm working on integrating the latest SBSFU (v2.6.2) onto an STM32L4A6 platform. I've reviewed both the user manual and application note for the SBSFU, as well as the examples provided.In my use case:I have an external attached MMC flashI'm not plann...
Hello,I only have 2 GPIOs activated, and the SMPS, not yet any code written from me...The function HAL_PWREx_ControlVoltageScaling times out in NonSecure (somehow works if debugging and stepping into.. but then HAL_RCC_OscConfig get HAL_Error).For so...
Hi, I am using stm32l496 for sbsfu. I followed the tutorial and it ran the example code but they gave me their scripts for that project. how do we make our own script for my project which converts project binary into .sbsf file? and how to configure ...
I want to modify option bytes to set up readout protection. I am programming this device with my own programming tool (UART+BOOT0+RESET pin). Programming works fine using bootloader protocol. Setting readout protection doesn't. After setting it up it...
Hello,I am programming with the STM32U575ZIT6 microcontroller, and I am trying to update the firmware in the secure zone. However, when I try to update the firmware in the secure zone, the function ret_arm=LOADER_FLASH_DEV_NAME.EraseSector(sector_add...
I am working to generate the CRC for the flash memory, During this I am facing hard fault when the CRC module tries to read from certain flash locations, to debug it I made a small loop which assigns the value of each 4 byte. I found that reading at ...
Hello,I am using the SBSFU application on the U575 microcontroller and have created my own program, which is stored in the secure area and accessed via NSC. I am trying to send data via ultrawideband, but the interrupt is not triggered. I have tested...
Hi I am working on SBSFU Application project from STM32U585 project. And I am trying to use mbed-crypto APIs like SHA512 APIs as below mbedtls_platform_setup(NULL);mbedtls_sha512_init(&sha512_context);mbedtls_sha512_starts(&sha512_context, 0); // 0 f...