Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hello. I'm trying to obtain CRC value from CRC peripheral. It's supposed to give me 8 bit number. Instead it gives me 32 bit number. What am I doing wrong? Below is the code and program outputs. /* USER CODE BEGIN Header */ /** ********************...
HiWhen I was returning from RDP level 1 to 0 the stm32cube programmer program crashed and now every time I try to access the microcontroller several different cases happen:1- Connect and instantly lose the connection giving the next error: Error: Dat...
Hello,I am using the X-CUBE-SBSFU package with the KMS to perform firmware update on my ST MCU.To verify the authenticity of the firmware I use ECDSA. However, I don't understand why I only need to provide a private key but not the public key. If I u...
Hi,I'm using STM32CubeExpansion_Crypto_V4.0.1 library for verifying a signed firmware file on STM32F7 controller. The key-pair has been generated using openssl command-line. The firmware has been signed using the private key (PEM). The signature has ...
I'm successfully implemented IAP for stm32h745. so I wish upgrade to sbsfu.Sbsfu has security firmware upgrade. When i implement for IAP, Firmware file was merged cm4, cm7 binary file using Srecord.If I merge files, won't the integrity of the firmwar...
Hi Team,I am working on a project involving the STM32H5 microcontroller and I am in need of information on how to manage the keys securely for encryption and decryption. I have been unable to find a document that covers this topic specifically for th...
I am trying to use TrustZone on STM32U5A9:I am setting up the following regions in SAU:0xc1fe000-0xc1fffff non-secure callable0x8200000-0x83fffff non-secure0x200c0000-0x20273fff non-secure0x60000000-0x6fffffff non-secureAs soon as I flip the enable f...
Hello,I am working on Secure Boot for one of the project having the following list of information,Board : B-U585I-IOT02ADevice name : STM32U575/STM32U585Device type : MCUDevice CPU : Cortex-M33 I am trying to boot the device using generated keys with...
I'm trying to create ECDSA keys on a STM32WL55 using the X-Cube/HAL Crypto library. I can generate NIST keys no problem, however when I try using the Brainpool curves, it mostly returns the following error: CMOX_ECC_ERR_WRONG_RANDOM ((cmox_ecc_retval...
Hello,I have created my own program using TrustZone and I want to add the SBSFU_BOOT project to it. How can I do this?