Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hello,We are developing a product based on a STM32WB5MMG. We have configured the SBSFU with OTA (Asymmetric with AES encryption scheme). Everything is working great and I have only one question that came to my mind during the last commit...The CBC ke...
Is it possible to call Secure (S) application code from Non-Secure (NS) application code with TrustZone on STM32H573? I have not seen any examples of this from ST, so I want to know if it is possible or if there is some fundamental reason why not.Th...
Hi all, first time working with stm32.So far I've managed to make things work, I've even workarround this issue (*), but I can't seem to understand why this is happening in the first place.STM32F429, STMCubeIDE, ST-LINK/V2This is my situation:Executi...
When the Secure Engine Call (inside SE_Init() function) is called in this line:e_ret_status = (*SE_CallGatePtr)(SE_INIT_ID, peSE_Status, primask_bit, uSystemCoreClock);(which is between a SE_EnterSecureMode and SE_ExitSecureMode). The MCU resets at t...
Am searching for SFI documentation without HSM to demonstrate to a Device certificate authority. Can you please share UserManual or ApplicationNote for STM32H573I-DK.BestRegards,P.Hitesh
Hi, I'm looking into introducing HMAC SHA-256 on my STM32F429 based project as part of a requirements change. As a first go/no go, I'll need to know what is the worst case required MIPS figure and memory foot print (SRAM/FLASH) for running the algori...
Hi,I'm trying to get access to the UID registers (address 0x0BFA0700UL) of the CPU with the above configuration from the non secure application. The secure fault callback is getting called. I have tried adding an entry in the boot code file low_level...
Hello,I'm using AES-GCM using the method cmox_cipher_append() function call, as taken from the example below, taken from Projects\NUCLEO-L476RG\Applications\Cipher\AES_GCM_AEAD_EncryptDecrypt\Src\main.c retval = cmox_cipher_append(cipher_ctx, ...
Hi,I want to use the SBSFU application on the STM32U575ZIT6 microcontroller instead of the B-U585I-IOT20A board. Is this possible? If it can be done, what steps should I follow?
Hello @stI am taking the reference implementation of the HKDF Algorithm using PSA API in the TFM Application Project and using the following algorithm :PSA_ALG_HKDF(PSA_ALG_SHA_256);I m able to export the output key to the console and am getting an o...
