Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hello,I'm trying to use the SAES/AES shared key functionality in a Trustzone (TZEN=1, RDP = 0), using the functions provided by the HAL library. The board I use is the B-U585I-IOT02A.The only project example I found is with Trustzone disabled, but it...
Hi,I'm trying to encrypt and decrypt in my device, running on a STM32H753, using AES ECB.I'm initializing crypto like this: hcryp.Instance = CRYP; hcryp.Init.DataType = CRYP_DATATYPE_8B; hcryp.Init.KeySize = CRYP_KEYSIZE_256B; hcryp.Init...
Hi everyone,I'm working in a Medical devices company and we use currently plenty of STM32s (F0,F1,F4, maybe soon H7). Until now, we didn't bother that much the cybersecurity topic for the firmwares but now the norms are forcing us :D.I checked a bit ...
I've tried to enable the CRYPT and HASH peripherals by setting bits 5 and 4 in the AHB2ENR register, but all peripheral registers read as zero and writes are ignored as if the clock wasn't enabled or the peripheral was missing. Does this chip have ha...
Hello all, I am using the SBSFU v2.6.2 on STM32H753 - (2 slots based) for a few months now, and am trying to enable the Firmware Rollback feature right now. During this attempt, I had enabled ENABLE_IMAGE_STATE_HANDLING as required in SE, SBSFU and U...
Hello there!I've been trying to make the Lora-FOTA example portable by converting the include paths, resource links, linker path and pre/postbuild files to be "project related paths" instead of absolute paths.Everything worked out very well with kms_...
Hello, I am using the STM32 Cryptolib. I need to get the modulus and exponent of RSA public key from a .pub or .pem files. After decoded from base64 I need to decode the DER format (in ASN.1 format). Has anyone any suggestion of which libray may I us...
For some reason bootloader fails to pass image tag authentication. SE_AuthenticateFW_Finish(pSeStatus, fw_tag_output, (int32_t *)&fw_tag_len). returns SFU_SUCCESS status. However, compare to the tag retrived from image header located in MCU flash is ...
Hi, I have been trying to use P-Nucleo-WB55 project from SBSFU 2.6.2 with SECBOOT_AES128_GCM_AES_128_GCM_AES128_GCM crypto option. I have disabled all security IPs for ease of debugging and have tried with local loader and no loader configurations. ...
Hi all,I'm trying to implement Active Tamper in STM32U585 controller, im trying to generate the SEED, the Seed is getting generated, but the SEED is not getting updated in the SEED reg of tamper, i'm attaching the code and seed values generated for r...
