STM32 MCUs Security

Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.

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STM32 H7 crypto lib unable to run ecdh

I am trying to run ECDH p384 operation on STM32H753.Using the STM32 Cryptolib 4.5.0, I get the CMOX_ECC_ERR_MEMORY_FAIL error during the operationI increased the stack size to the maximumI was able to run this using mbedTLS + hardware blocks like RNG...

coolname by Associate II
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Flash Firmware with UID

Hello Firends,Two Questions...1. Firmware Flash with DFU Bootloader succesfully done along with RDP bit. Can we re-flash the fiirmware once RDP L1 is set before through DFU using USB ? my custom board uses STM32F303Rb device. 2. Each STM32 device has...

bsuthar by Associate II
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stm32l552zeq Nucleo board cannot disable trustzone

Hi, I managed to enable TrustZone by setting the TZEN-bit to 1 like soSTM32_Programmer_CLI -c port=SWD -ob TZEN=1But I can't seem to manage to turn it off the same way. I've tried doing it from the graphical interface as well, with the same results. ...

krook by Associate II
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Resolved! Flash Data lost on OPTIONBYTE_WMSEC

Hello!Using h563zi I am trying to update the second bank firmware using an application that has a Secure Part (sectors 0-9) and a Non Secure part with Trust Zone enabled. For easier maintenance the update is done from the Non-Secure part.Settings:SEC...

STM32H5 - X-CUBE-SEC-M-H5_V2.0.0 - CubeMX

Hi Everybody,I posted a comment here https://community.st.com/t5/stm32-online-courses/stm32h5-secure-manager-course/bc-p/824487/highlight/true#M27 yesterday because I am trying following the online course and what is written in the wiki to start deve...

andyi by Associate II
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Secure Manager PSA Firmware Update Service

From the manual UM3254:4.1.4 PSA firmware update service4.1.4.1 DescriptionThis service provides an implementation of the PSA firmware update API defined in [PSAfwuAPI]. It provides a standard and platform-agnostic interface for firmware updates.The ...

Tamper Detection on STM32H753

Hello,I try to implement a tamper detection for my project. In general, it works. When the device is only powered by a coin cell and a tamper is detected, the backup registers are erased and unfortunately also the backup RAM. When the device is power...

toni2 by Associate
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