Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hi, I am working on integrating the TPM ST33TPHF2XI2C into our platforms and we noticed that there are two GPIOs in the TPM chip. The datasheet says the following: The GPIO function could be modified by activating GPIOs mapped on the NV storage inde...
We are developing a Matter device using X-CUBE-MATTER.How can I make the sample firmware using SBSFU into a sleepy end device? Just setting CFG_FULL_LOW_POWER to 1 fails the commissioning. How can I enable Sleep Mode like the generic-switch app?The d...
I spend a lot of time looking and never could find an easy way to do this. I came up with a solution and thought I would post it.I am using the STM32F407. The F4 series only has one way of calculating the CRC in hardware and that is what I chose to...
How do you know how big the preallocated static buffer should be when calling cmox_rsa_construct?Does this depend on the RSA key size that will be used?Does this depend on the Modular Exponentiation function that is selected (LOWMEM, MIDMEM, HIGHMEM)...
Hi,Im trying to encryp using AES 128 CTR but i dont get the same result that online calculators.Im using this online calculator: https://cryptii.com/pipes/aes-encryptionMy code is the next:uint8_t IVKey[] = {0xDD, 0xF9, 0x11, 0xA6, 0xDD, 0xF9, 0x11, ...
I'm having issues with a project based on an STM32WB5MM where some devices fail to operate BLE (like advertising, for example). The project integrates SBSFU and BLE_ota. I'm reviewing the linker files and I see differences in the management of the BL...
HI,we are interested in a guide to a clear workflow of integrating CubeMX-generated code for U5 into TFM-based application.In particular:1. We have trustzone-enabled CubeMX-generated app with Azure RTOS and TouchGFX. The IDE and compiler are IAR. We...
Hi,In our application, we want to authenticate our IoT devices in Azure IoT Hub using X509 certificates with the help of STSAFE-A110. The application is written in Zephyr RTOS and is using the MbedTLS library for the TLS part. Using the in-tree Zephy...
Hi Team,I am working on project in which we are implementing Secure software upgrade feature using SBSFU. locally I am building SBSFU package, but our project follows different process. To meet that I need to build SBSFU package in TeamCity.could any...
Hi, i am using stm32l496 and bluenrg module. i want to implement AES-CCM encryption but I don't have any idea about the implementation and also I don't have library for aes-ccm. please help me.