Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hello,I'm trying to figure out how to properly use STM32WB55 PKA registers for RSA key generation and encryption/decryption. I have chosen small (63 bit) primes for generating RSA private key, which worked perfectly. However, I am having trouble with...
Hello ST Community,I'm currently working on a project using the STM32WB55 MCU and am in the process of implementing Secure Boot and Secure Firmware Update (SBSFU) in my custom application. As part of this, I decided to test the existing 1_Image_SBSFU...
Hi ,i am using STM32L4R9 based dev board STLINK-V3MINIE and wanted to use SBSFU, used the example code STM32L432KC_Nucleo_1_image from the library and flashed the SECoreBIN followed by SBSFU and then the userAPP code, but while flashing userAPP ,i go...
Hi,I have read datasheet of STM32F103VCT6, it does not mention anything about code read out protection. Does STM32F103VCT6 has this function? (a security function to protect STM32F103VCT6 from reverse engineering)Thank youDavid Kean
We managed to successfully run TFM_SBSFU example for the IOT02A board. We are using latest STM32Cube_FW_U5_V1.2.0.The problem is that we do not have access to PSRAM from NonSecure application when in memory mapped mode.We implemented PSRAM init by im...
Reference: STM32CubeExpansion_Crypto_V4..1.0, MCU: STM32G474REThe cmox_ecdsa_verify(...) function is failing with a fault code of 0x6c706, which is not contained within cmox_ecc_retvals.h header file. All arguments to the cmox_ecdsa_verify(...) funct...
Hello,I have done a big mistake. I was testing a provisioning using the system bootloader. For that I have changed the provisioning batch files. As a result I have set the product state to closed, before the keys where loaded. Now I can not connect ...
I do have the document UM2262 which describes the SBSFU expansion package, but it only gives a fairly brief explanation of the prepareimage tool.
Hi Team,I hope this email finds you well. I am reaching out to inquire about documentation similar to UM2262 but specific to the STM32H5 microcontroller.We are currently working on a project that involves firmware encryption, decryption, and update p...
According to Wikipedia The MODBUS uses the CRC-16-ANSI also known as CRC-16-IBM. The normal hexadecimal algebraic polynomial being 8005 and reversed A001Initial value: 65,535.Example of frame in hexadecimal: 01 04 02 FF FF B8 80(CRC-16-ANSI calcul...