Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hi,I am evaluating/learning the SBSFU application example on STM32WBA55CG and having issues getting it up and running. Below is the screenshot of the example log:To begin with, I want to be able to do the following.1. Flash the bootloader and flash t...
I'm trying to find out the exact steps to regress an STM32U083 to an erased state after programming it with the OEMiRoT example project and and locking it to RDP2 by the accompanying provisioning.bat script.Will be using STM32CubeProgrammerCLI (or th...
Good day.I use in my project transfer of information between devices, for encryption and authentication I use the CCM mode (self-written library) as the encryption base I use AES-ECB.A device from the G0 series was added to my project, STM Cryptograp...
Hi. How can i connect a debug session to a device with product-state: closed and non secure software (no TZ active) without full regression. I have create the password.bin file and two certificate files with TrustZone Package Creator: - DA with p...
Hello,I am using the Nucleo-STM32F411RE development board and require support for cryptographic functions, particularly ECC NIST P-256, MAC, etc, for my development use cases.To achieve this, I downloaded the X-CUBE-CRYPTOLIB v4.3.0 package as it was...
Hello, I am trying to adapt the H753xx SBSFU implementation to the H745xx dual core board.I have so far configured a second slot by creating a second MPU region of 1KB to protect the header of the second slot, as well as changing the security checks ...
Hi,I am struggling to get `HAL_PKA_ECCCompleteAddition` implemented correctly, that is, if I'm comparing the projective coordinates with a reference implementation, the results don't match. Same goes for converting the projective coordinates back to ...
Hi,I try to use PKA for some ECDSA computation. For this purpose I needed to use PKA block. However, in SR register, I never get INITOK bit set. I am working with TrustZone enabled. So, STiRoT is executed before my program.After investigation, I've s...
Title edited to be more descriptive than just "USB"HI,I Need help, My application Requires Firmware updates using USB DFU Mode, and planning to make a custom Pc software that updates code using USB. How can I Make sure that only my Pc software shoul...
Hi,I'm currently experimenting with the decryption of custom data provisioned into the OBKeys storage with hardware encryption enabled.I've successfully provisioned the data without encryption and read it back intact. With encryption enabled, I see ...