Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hi, I have a doubt. I made some changes in the secure bootloader to achieve certain functionality, but I am unsure whether the code in the secure bootloader is developed by ST (such as drivers or APIs), or if it is intended for user modifications. Sp...
Hi everyone,Hi @Jocelyn RICARD, @D.Botelho @Jocelyn RICARDyou made this small bootloader example for testing H7 security features, e.g. RDP:https://community.st.com/ysqtg83639/attachments/ysqtg83639/mcu-security-forum/6051/1/STM32H753_SecureMem_Examp...
Hi Team, I am working on project where we are implementing Secure upgrade feature using SBSFU package, we followed the steps as mentioned by ST community and to integrate SBSFU in our project. we have two modes Debug mode and Release mode.in Debug Mo...
I am trying to use the DA function of the STM32H573. I can successfully write the OBK file (with TrustZone disabled) and regression via STM32_Programmer_CLI.exe. However, I encountered an issue when trying to read the plaintext of the OBK payload in ...
Hello,In a project with STM32 using SBSFU in a U575 microcontroller, why can a local variable of type structure within a function cause failures or unexpected behaviour in the secure zone, while a global variable of the same type works correctly?
Section 6.1 of AN5056 (for X-CUBE-SBSFU) states that the projects are delivered with the highest level of compiler optimizations turned on for size aspects.If the Optimization Level was set to 'None', then how much larger is the generated code expect...
Hello , I am trying to calculate a MAC using `cmox_mac_compute()` from this lib on an STM32L562 in the Secure code.The code looks like this :auto r = cmox_initialize(NULL); /*default template with stm32l5xx.h included*/ auto ret = cmox_mac_compute(CM...
Hello ST team,We are working with the STM32WL5MOC6HTR module for a LoRaWAN end-device design.We understand that the STM32WL5MOC6HS variant includes an STSAFE-A110 secure element, but our custom module (MOC6HTR) does not include STSAFE.Our question is...
Hello! I want to implement secure boot / secure firmware install on my STM32u5A9 custom board. I am starting by trying to modify the SBSFU example code from B-U585I-IOT02A example project to run on my board. I followed the instructions in the README ...
We have an application running on an STM32WB55M. This user application makes use of standby mode, and the device is able to exit it when the configured pin changes state.However, once the SBSFU is integrated with the BLE_ota application, the user app...
