Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
I am trying to use the cryptographic library on a STM32F103, but I cannot find any documentation that is in line with the library and functions.In UM1924 rev.8 we still speak of version 3, but I cannot find the mnual consideration of rev. 4.0.1 (ther...
Hi, I was testing the different levels of read protection and when I activated RDP 2, I lost full access to my board. I would like to know if there is any way to regain access (do a downgrade), despite losing all the content I had installed, somethin...
I am trying to write a user key to CKS on a P-NUCLEO-WB55 using either STM32CubeProgrammer or STM32_Programmer_CLI and the SWD interface. I am able to start the FUS no problem, as shown here:C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProg...
Decryption(AES-256) error after encryption(AES-256) signal network transmissionThe progress is as follows--------------------------------------------------------------------------------------------------------------AES SettingsKeyEncrypt(board 1)Dec...
STM32H7B3I-DK 1_Image demo project.Please let me know, what is the debug mechanism for SECoreBin application? How can I enable debug mode of SBSFU Secure Engine application?
Hello, I'm working for an MNC and we use stm32l431cc. And I have to implement firmware updates over the air.physical connection:TARGET DEVICE <---UART----> External IOT DEVICE (GSM MODULE) which can be plugged in and out <----> Cloud service.For the ...
Hi,My custom SBSFU_UserApp.bin failed the header signature verification in slot SLOT_ACTIVE_1 when I tried to execute it on the STM32H7B3I-DK board.To replace ECDSA with RSA signing verification, I have changed se_crypto_bootloader.c.SECoreBin projec...
Referring to "mapping_sbsfu.h" file of the example "2_Images_OSC" of STM32f769I-Discovery, seems the DTCM and SRAM2 are not used in the project.So does it have a reason?
I tried to make my project SBSFU compatible, by using 'STM32F769I_Discovery_2_Images_UserApp' example. It is based on the STM32F756VGT6 microcontroller and I defined the load region on ITCM interface address range -0x200000 to 0x2FFFFF- instead of AX...
Hello,I try to verify data with cmox_ecdsa_verify. It fails with CMOX_ECC_ERR_BAD_PARAMETERS. I think my public key has the wrong format, because the buffer CMOX_ECC_SECP384R1_PUBKEY_LEN is 96. My key has the length of 120 bytes.I have exported my pu...
