1. A cloud computing system comprises: a cloud system managing unit having a system level manager trusted certificate; a plurality of sets of devices, wherein a set of devices of the plurality of sets of devices includes one or more devices having a common aspect; and a plurality of authentication servers, wherein an authentication server of the plurality of authentication servers is associated with one of the plurality of sets of devices based on the common aspect, wherein each of the plurality of authentication servers has a unique device level server trusted certificate and a unique system level server trusted certificate; wherein: a corresponding one of the plurality of authentication servers and the one or more devices of one of the plurality of sets of devices establishes trust therebetween based on the unique device level server trusted certificate of the corresponding one of the plurality of authentication servers; the corresponding one of the plurality of authentication servers and the cloud system managing unit establishes trust therebetween based on at least one of the unique system level server trusted certificate and the system level manager trusted certificate; the cloud system managing unit and the one or more devices of one of the plurality of sets of devices establish trust therebetween based on the trust between the corresponding one of the plurality of authentication servers and the one or more devices of the one of the plurality of sets of devices and the trust between the corresponding one of the plurality of authentication servers and the cloud system managing unit; and the cloud system managing unit configures the cloud computing system based on the trust between the cloud system managing unit and devices of the plurality of sets of devices, wherein the configuring includes facilitating subsequent operation of a device of the plurality of sets of devices in accessing another of the plurality of sets of devices of the cloud computing system using a signed certificate from the cloud system managing unit.