[Technical Question] Device provisioned with DPS always shown as "X509 self-signed" instead of "Certificate Authority"

[theob7]

Hello !

I try to set an Azure DPS with authentication type "x509 CA certificate". For testing, I'm using the iot-sdk-csharp and follow this sample.

Everything works except IoT hub shown devices provisioned with DPS as "X509 self-signed" instead of "Certificate Authority".

With devices directly created on IoT Hub (NOT via DPS), authenticated type are set to Certificate Authority. This is the behavior I want to reproduce with devices created from DPS.

My DPS enrollment group settings:

Do you know what I have to change in DPS for my devices to appear with "Certificate Authority" authentication type ?

Thank you for your help.
Have a nice day.

Théo