Patent attributes
A terminal configuration server is configured to associate a terminal identifier with a cryptographic key set, and to provide a communications device with the terminal identifier and the cryptographic key set. The terminal configuration server is configured to receive the terminal identifier from the communications device via a communications network, and establish an encrypted tunnel with a terminal via the communications device and the cryptographic key set. The encrypted tunnel is encrypted end-to-end between the terminal configuration server and the terminal. The terminal configuration server is configured to receive a payload request from the terminal via the encrypted tunnel, locate a payload that is associated with the terminal identifier in the payload database, and download the located payload to the terminal via the encrypted tunnel.