Support Needed for Adding NSIB and Multiple Keys in MCUBoot Firmware

[Yashaswini S]

Hi,

I have successfully updated the firmware on the nRF5340DK controller using the DFU MCUBoot method. Now, I need to add Secure Boot NSIB to the bootloader and integrate multiple keys into a single firmware for better security.

Currently, MCUBoot only allows one key at a time, which limits the ability to update and revoke multiple keys. I need support from the Nordic team to find a solution that allows multiple keys in the MCUBoot framework. Specifically, I need guidance on modifying the keys.c file to support multiple public keys or any other method for secure key management.

Your assistance would be greatly appreciated.

Thank you

[Kenneth]

Hello,

Sorry, not possible. I can see you have the same question here:
Support for Key Management (Add/Revoke) via Auterm in MCUboot DFU process 

Kenneth

[Yashaswini S]

Hi,

Thanks you for the reply, In this I just need to know How to add the NSIB to the Existing MCUboot?

SInce NSIB is the First stage Bootloader, How to Implement the Secured one for the MCUboot?

Thanks