STM32 MCUs Security

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How many Public Keys we can store in Secure Boot. As per understanding from SBSFU examples, we can store only one public key to verify the signature of firmware. Can't we store more than one KEY ??

We want to store up to 4 Public Keys as backup, in case of any exploit in one KEY, we can switch to another.So, Can you provide any solution to store more than one Public KEY in SBSFU solution??

SPati.7 by Associate III
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Run issue after setting RDP to level 1 (POR and reset)

Hi,For production purpose we designed a control board for the test jig which does unitary and RF testing as well as the programming of onboard SoC and MCU, the STM32 target in this case is an STM32F411CEU6, the test jig control board is also based on...

HBida by Associate III
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  • 2 replies
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Resolved! How to disable SRAM1 firewall protection?

I am using the SBSFU project for OTA.I have linked my UserApp successfully with SBSFU projects and firmware up-gradation is working fine when FIREWALL protection is disabled.I am using the STM32L4 series controller and am aware of L4 series firewall-...

Brajp.1 by Associate II
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  • 9 replies
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is Firmware encryption support on STM32H753VI ??

As per Firmware encryption need, we need to have OTFDEC module and External Flash, where we can store Encrypted firmware on External Flash and on every reset of MCU, we decrypt on the fly with help of OTFDEC module and load it on RAM. From there it c...

SPati.7 by Associate III
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  • 3 replies
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