Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hello guys,I've implemented SBSFU along side with an USB standalone loader for my project using a STM32WB. My question is, should i implement hardware semaphores and shci_notification for CPU2 during flash erasing and writing operations on my USB ext...
Obviously Read Protection Level 2 is the most secure in protecting IP on the G series MCUs, but in the worst case scenario it could involve unsoldering and replacing the IC. Do you use Level 2 or is Level 1 secure enough for most scenarios ?
I have to generate CRC on MCU (STM32L476VG). I am using code as below for generating CRC.uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength) { uint32_t temp = 0U; /* CRC output (read from hcrc->Instanc...
Hi,I want to block flash memory for writng after programming it. It is important that write protect should not be possible to deassert. I have read about RDP mechanism, but there is information that on level 2 write protection is permament, but only ...
I am working through the Security MOOC and in section 6, they show how to build the NUCLEO-L476RG example project on Windows. Their procedure does not work for me on MacOS Big Sur.The most pressing problem is that when I try to build SECoreBin, I get...
HI, I am trying to port one of ST's security hands on labs for firmware protection that targeted v3.1.3 of the CryptoLib package, to v4.0.1 of the CryptoLib package. It seems like the "legacy" v3.1.3 interfaces for SHA256_Init() / Append() / and Fini...
My user application firmware is rather big. It runs on STM32G070, so I've adapted the example code from STM32G071. I've followed the example provided in AN5056 (see picture) to reduce the SBSFU size, it saved about 10 kB, but it is not enough (still ...
Hi all,I would like to use the Cryptographic peripheral in my STM32L451 to encode and decode some data based on a pre-stored common key.Are there any examples for Atollic that would get me started on this?
I am currently experimenting on stm32l562e-dk board, and I discovered that, in the secure world, non-secure flash cannot be read via a secure memory region (i.e. not covered by any of the SAU regions). To be specific, value of zero is read.I am wond...