STM32 MCUs Security

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Factory bootloader CRC command?

I noticed that in STM32FLASH programming utility, there is support for a CRC bootloader command. From what I can tell in the source code and commit history, this command is 0xA1 and was introduced around June of 2014. But from the ST documentation, ...

Is there any way to implement BigNumbers on a STM32F4?

I need to implement some BigNumber math on an STM32F4 (bn.h, conv.h, modular.h). I would like to use functions such as W8_to_Big(), StAllocBig(), and InitBig(). Unfortunately I cannot find any information on how to use these functions. Are there any ...

VMedi.0 by Associate
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Resolved! How do you generate public and private keys for RSA?

The user manual (UM1924) says in section 15 RSA Algorithm:There are two structures that pass keys to the functions:•RSAprivKey_stt for the private key•RSApubKey_stt for the public keyAll members of the above functions should be filled by the user bef...

MMart.9 by Associate II
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Resolved! Port the SBSFU to STM32F730 in XiP mode

Hi, I just went over the X-Cube-SBSFU material and tried to compile the example projects to get an overall picture of this function.The MCU I used is STM32F730I8 and I am using the STM32F7308-DISCO board.As only 64kB flash is available in STM32F730 s...

JYeh.9 by Associate III
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CRC16 for STM32F030

I am trying to use the hardware peripheral on the STM32F030 to calculate a 16-bit CRC for a modbus RTU application. But I don't know how to do it.

Yq by Associate
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Resolved! How to implement AES using the Cryptographic processor?

The reference manual gives a brief description but how do you actually implement it?I'm using an STM32F437 which includes a cryptographic accelerator so I'm not looking to use the Cryptographic Library.Any documentation, tutorial, example code or any...

MMart.9 by Associate II
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