Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
I have a bootloader that attempts to verify the integrity of an application image before it transfers execution to the application. It does this by performing a CRC (using software) on the image. However, if the internal flash is corrupted somewhere ...
Hi,My setting is "TZEN=1", "RDP=1", "nSWBOOT0=0","nBOOT0=1".I can't use it anymore, please tell me how to regression the TZEN to 0 and RDP to 0.Thanks,QiZhang
Hello,the cryptolib offers the function ECDSAsign. In the ecc.h it is declared as int32_t ECDSAsign(const uint8_t *P_pDigest, int32_t P_digestSize, const ECDSAsignature_stt *P_pSignature...
Hi all,I've downloaded the package 'STM32CubeExpansion_SBSFU_V2.4.0' and I've opened, using STM32CubeIDE (Version: 1.6.1), the project STM32WB55RG_Nucleo_2_Images_SECoreBin. I'm not able to compile the project because I've the following error:arm-non...
Hello, I am interested in learning how to sign an app that we created. could it be automated or what files would have to be changed? A second thing is if i want to switch to a different authentication algorithm (replace RSA for example), how would I ...
HelloI am doing a project where I investigate the increased energy consumption when implementing TLS on an MQTT protocol.At the moment, I am doing tests where I measure the current via the IDD pins. But I was surprised at how little impact the implem...
Hello,I am working on a SBSFU for a H753ZI board. To help me with this, I am using the example projects provided with the SBSFU package and the MOOC.I was able to successfully download the SBSFU on the board and make the example UserApp run on it. I ...
Please guide me how to add SLOT_ACTIVE_2 to firewall protection.
Hi all,We have been testing our 2 images configuration SBSFU firmware update with our NUCLEO-L476RG. We have encountered 2 scenario's during which the different steps taken by the bootloader was not entirely clear to us. We could use your help to cla...
Hello,I am trying to mimic the STM32 Example code, UART_Trace_TrustZone, to have my nonsecure world use a secure callback to print to the serial port after being initialized. However, only my secure world prints to the serial port. Ideally, I would a...
