STM32 MCUs Security

STM32 CRYP AES functional description error in the Ref manual ?

Follow up of my previous messages on AES-GCM on STM32H753.I think that the ref manual is wrong: I implemented my code this way and the busy bit never clears.The HAL code is not polling on this bit neither.i've checked on other STM32 ref manuals it is...

Resolved! Questions about PCROP, Firewall and RDP protections

Hi,I am using the the SecureBoot on a STM32L4 with the KMS, I have some questions related to the protections:As I use the KMS, I read in the UM2262: "With KMS middleware integration, SBSFU keys are no more stored in a section under PCROP protection b...

Resolved! SBSFU 1 image example for STM32G474

Hi I want to ask that In SBSFU example for STM32G474 in user app application Firmware update is done using ymodem protocol i.e. UART can we used SPI protocol instead of this is this possible to use SPI or there is any limitation????? Please suggest

How can we configure SECURITY Mode for STM32H753

Do we have provision to configure STM32H753 as Secure Mode or not using SECURITY Pin in Boot selection ??or is this completely owned by STM ??is Devices received with enabling SECURE MODE it self ?? as mentioned in below Diagram ?? is STM does this S...

What is the goal of the firewall configuration constraint on dual bank products

Hi,One of the requirement for the FLASH layout on dual bank product (like the STM32L4 that I use) is that the FWALL code section overlaps the the FWALL NVdata (see the attached image). If I understand correctly the reason is that if the banks are swa...

Resolved! SBSFU 1 image example for STM32G474

Hello everyone I am working on 1 image example for STM32G474 I want to ask that what we can achieve using this.....We are able to download new firmware image or Not ?????????

Resolved! Can we store Private Keys or x.509 certificates on Flash using PCROP Protections ??

@Jocelyn RICARD We need secure storage to keep Private Keys and certificates for TLS communication on STM32H753.To achieve this we found STSAFE-A110, but interfacing and to bring in this peripheral, it is time taking in terms of re-spin PCB design...

Resolved! Is it possible to send a variable in my program (containing the firmware version) to the SBSFU post build script?

One of the variable in my program is the program version ie 200 for version 2.00. I log it to my debug log and I display it for the customer. The program version must also be passed to the SBSFU post build script. Is there any way to do this so the S...

STM32H7 RNG clock configuration

I'm using for the first time the RNG of STM32H753. I have a "clock error" which means that rng_clk is too slow compared to HCLK.The reference manual mentions the following: Is it a problem to just disable the clock error detection since it seems that...