Hello @VShap.3 and welcome to the STM32 Community :smiling_face_with_smiling_eyes:,
I recommend you to refer to AN5609 and precisely sections 8.2, 11 and 12.
This application provides a certificate based key establishment (CBKE) cluste.
Also, the AN5669 note presents an overview of the necessary certifications needed for manufacture applications for Bluetooth® Low Energy (BLE), ZigBee® and Thread using STM32WB.
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Kaouthar
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