Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Today when I generated CRC from output binary file I found it did not equal the data in the board. Then I check the data in board , I found the data which loaded by stm32CudeIDE was padding with 0xFF, but the stm32CudbeIDE generate the binary file wi...
Hi, We are using SPSGRF-868 module in our project, With following settings of RF module operating @868 MHz Send/receive data without Encryption we are able to achieve 20~25 meter distance and working fine. But Send/Receive the data with encryptio...
I've developed an IOT device and now I'm concerned about security. Uses ethernet, tls and mqtt to upload cloud data. Checks a directory on the web for firmware updates. The mqtt is well sanitized and i'm not extremely worried about attack vectors com...
Please check attached Source code file with complete test code.I am using STM32WB55xx with algorithm : RSA/PKCS#1v15/rsa_pkcs1v15.h Note - Public key is 2048 bitIssue - If we set following modulus(publicModulus[2048 / 8] ) not getting any result/sta...
Hi, I hope the day is going well for everyone.We've been working to validate SHA256 computations on the HASH unit of the board named in the question. In the process we have noted what appears to be a reproducible problem with the unit.In short it ap...
Hi,The CRC function of the flash module in the STM32H753 is documented as using the polynomial 0x04c11DB7. If I use this module to calculate a CRC over 128 bytes all set to zero I get a non-zero answer (0x11e66c62) so it must also be using an initia...
I have an STM32F405 (which has no PCROP). I want RDP Level 1, but also want to re-flash firmware updates using the bootloader (and the DeFuse utility). With RDP Level 0: everything works: I can reflash firmware updates, no problem.But when optio...
Is it possible to set level 2 RDP to just a subset of a certain Flash bank? not the entire bank. (Begin Address -> End Address for example)Is it possible to set RDP levels for an external flash not the internal MCU flash?
Hi all,I am sending a message via USART from STM32F303 (later to be moved from STM32F3 to STM32F427) to an X86.The message consists of 2 parts payload + crc ,CRC is calculated on stm32 using crc hardware engine and calling CRC_CalcCRC/CRC_CalcCRC16bi...
I've strange problems with my custom board with microSD card:The same code doesn't work if I run debug build and works well if I flash the realise. It gives error CRC. And the error is the same if I remove the card. It looks like that response did no...