A system for securely provisioning a computerized device for a set of communication and operation functions in an operational environment, the system comprising: a distributor appliance that is connected directly or indirectly to the computerized device via a non-publicly accessible connection in order to download digital assets to and receive data from the computerized device, and that is configured to receive a first digital asset and to transmit the first digital asset to the computerized device; a provisioning controller that is connected to the distributor appliance, and that determines whether a first user that is requesting a first digital asset is authorized; a digital asset management server that is connected to the distributor appliance and to the provisioning controller, and that is configured to transmit the first digital asset to the distributor appliance when the first user is authorized as determined by the provisioning controller, wherein the first digital asset is configured to cause the computerized device to be provisioned for at least some of, but less than all of, the set of communication and operation functions in the operational environment, enabling receipt of a second digital asset; and wherein the digital asset management server is configured to securely transmit the second digital asset to the computerized device via a web or cloud service distributor when the provisioning controller determines that a second user that is requesting the second digital asset is authorized and that the computerized device is authorized; and wherein the computerized device is provisioned for all of the set of communication and operation functions in the operational environment after the second digital asset is transmitted to the computerized device, and wherein each of the first and second digital asset comprises one or more of a digital certificate, a cryptographic key, and executable software. a distributor appliance that is connected directly or indirectly to the computerized device via a non-publicly accessible connection in order to download digital assets to and receive data from the computerized device, and that is configured to receive a first digital asset and to transmit the first digital asset to the computerized device; a provisioning controller that is connected to the distributor appliance, and that determines whether a first user that is requesting a first digital asset is authorized; a digital asset management server that is connected to the distributor appliance and to the provisioning controller, and that is configured to transmit the first digital asset to the distributor appliance when the first user is authorized as determined by the provisioning controller, wherein the first digital asset is configured to cause the computerized device to be provisioned for at least some of, but less than all of, the set of communication and operation functions in the operational environment, enabling receipt of a second digital asset; and wherein the digital asset management server is configured to securely transmit the second digital asset to the computerized device via a web or cloud service distributor when the provisioning controller determines that a second user that is requesting the second digital asset is authorized and that the computerized device is authorized; and wherein the computerized device is provisioned for all of the set of communication and operation functions in the operational environment after the second digital asset is transmitted to the computerized device, and wherein each of the first and second digital asset comprises one or more of a digital certificate, a cryptographic key, and executable software.