how to protect code ?
hello everyone , how can i protect code in stm32f103 with the ability to upgrade code in future ? i am using stmcube programmer ide and stlink programmer
Forum Posts
Resolved! what does the polynomial become when crc8
Greetings. I ran into a problem, I can’t figure out how to become a polynomial if I use not 32 binary mode but in 8 bit mode. MCU STM32F072x8/xBif I use a 32-bit setting, I get the correct data and can process it on a PC, but with 8 bits it doesn’t w...
wireless stack did not start and stop in SBSFU
Hi,I am replacing Standalone Loader(Ymodem serial) and porting BLE_OTA in SBSFU as mention in AN5056 section 8.4 How to replace the standalone loader with a BLE OTA loader i am successfully ported and run BLE OTA but as wireless stack not started it ...
Secure boot on STM32F405 & STM32F407
I see the listing of all variants of STM32F405 & STM32F407 shows secure boot as one of the security functions. But I haven't been able to find any documentation for the same.It would be helpful if someone can point me to the relevant documentation.
STM32H573i-DK with Trustzone: HardFault with ThreadX and NSC Calls
Hi everyone,I'm currently trying to switch to the Secure World within ThreadX using a NSC function (I use an empty function for debugging, but the problem does persist also if I do anything there).Problem:If i call my NSC function in the NonSecure ma...
Resolved! Option bytes in STM32F207
Hi It stated in PM0059 page 16: The value of an option is automatically modified by first erasing the user configuration sector and then programming all the option bytes with the values contained in the FLASH_OPTCR register.I want to know : What's ...
PCH certification
HI I have attached the result of the " Public Key Certificate " that I received from the SMAK application code. As a result, we are getting an Elliptic Curve Cryptography (ECC) type certificate. But as per UDAI Specification Ver 2.0 - 2022 , We...
Resolved! Secure Manager usage of USART1
Does Secure Manager actually use USART1 when it comes up or is the initial serial output from the default app installed when I provision Secure Manager (SM)?This output, I mean================= General Infos ==========================Flash Layout con...
Why the STM32_AES_CBC_Encrypt function doesn't return multiple of 64 bytes encrypted message
Hi,I am using the function STM32_AES_CBC_Encrypt from the ST library Crypto 3.1.0. I don't understand why this function doesn't give me an encrypted message which is a multiple of 64 bytes. For example, I would like to encrypt "thisisatest12345". Th...
Resolved! Disabling TrustZone on the STM32H5
Hi,I have been experimenting with secure boot on the STM32H573I-DK, but I can't perform a regression anymore.While adapting the example code (OEMiROT) to my own version, I am currently in the situation where the device is "provisioned" (0x2e), but I ...
