[keycloak-user] Fw: Are there plans to implement PK Certificate user authentication?

Hello, Cross-posting...We are considering using keycloak as an STS (Secure Token Service). One of the requirements is PK certificate user authentication. It seems the only supported user authentication mechanism in keycloak is user credentials (user name / password). Before rolling out our own implementation, I just want to make sure I am not missing something obvious and that PK authentication is indeed not supported in keycloak yet. Regards,Peter