Has anyone used KeyCloak in front of an ADFS using government PIV cards for authentication

any pointers in what that configuration looks like would be very helpful.

There are a few articles here and there about Using SmartCards with RedHat SSO, but I haven’t seen anything pertaining to Keycloak. If it supports Webauthn, that might be a route, but from my research while working with FedRAMP customers, PIV cards do not.