Validating subordinate management controllers using subordinate management controller identity certificates

Abstract

Techniques are provided for validating subordinate management controllers using subordinate management controller identity certificates. One method comprises assigning, in a server device comprising a platform management controller and an accelerator unit having an associated subordinate management controller, a network address to the subordinate management controller, wherein the subordinate management controller is configured to store an identity certificate prior to the assigning; obtaining, from the subordinate management controller, a local domain entry based on information recorded in the identity certificate; obtaining a device certificate chain identifying one or more devices associated with the subordinate management controller, wherein the device certificate chain is authenticated utilizing a certificate authority certificate associated with the subordinate management controller; and utilizing, by the platform management controller, the device certificate chain to validate an integrity of the subordinate management controller, in connection with the subordinate management controller providing a service.