CONTROL DEVICE, REPRODUCING DEVICE, PERMISSION SERVER, METHOD FOR CONTROLLING CONTROL DEVICE, METHOD FOR CONTROLLING REPRODUCING DEVICE, AND METHOD FOR CONTROLLING PERMISSION SERVER

摘要

A control device (301) comprising control means (606) for controlling a reproducing device (302) to reproduce multimedia data is provided. The control device (301) also comprises receiving means (612) for receiving, from the reproducing device (302), a request to acquire permission data, which is contained in a permission server (304), said permission data enabling reproduction of the multimedia data, and said request comprising location information that indicates a location of the permission data and authentication information of the reproducing device (302), acquiring means (614) for acquiring the permission data from the location indicated by the location information, said acquiring means (614) sending the authentication information to the permission server (304), and sending means (616) for sending the permission data to the reproducing device (302).