attestation roots for stm32 U3C5

[socrates1024]

Hi, I have a NUCLEO-U3C5ZI-Q board, and I'm trying to follow the DUA_USER attestation process.

   I noticed that the existing Root CA certificates like here https://github.com/STMicroelectronics/STM32CubeU3/blob/main/Utilities/Certificates/ do not verify a U3C5 leaf.

Is there another source where I could find such root certificates, and/or is there a plan to add the DUA root CA for U3C5 to STM32CubeU3?
Also X-CUBE-RSSe doesn't seem to ship with a U3B5_U3C5 key-wrap binary. 

[Jocelyn RICARD]

Hello @socrates1024 ,

the STM32U3C5 is very recent and this part is not yet available.

There will be a new release of the Cube end of june (Wk26)

The Cube firmware will provide a new CA certificate for this device.

Also, a new X-CUBE_RSSe will contain the RSSe_KW to generate the wrapped key for this device.

Best regards

Jocelyn