Control device, reproducing device, permission server, method for controlling control device, method for controlling reproducing device, and method for controlling permission server

A reproducing device comprising:

• command receiving means for receiving, from a control device, a command to reproduce multimedia data, the control device being associated with charging information of an owner of the control device and the reproducing device not being associated with the charging information of the owner of the control device;
• obtaining means for obtaining, based on the multimedia data, location information that indicates a location of permission data contained in a permission server, said permission data enabling reproduction of the multimedia data;
• sending means for sending, to the control device, the location information and request for acquiring the permission data, said request comprising authentication information of the reproducing device;
• permission receiving means for receiving, from the control device, the permission data that is received by the control device as a response to an endorsed request generated by the control device based on the request and sent to the location indicated by the location information, said endorsed request comprising identification of the control device that is associated with the charging information of the owner of the control device;
• and
• reproducing means for reproducing the multimedia data using the permission data.

A permission server comprising:

• location sending means for sending, to a reproducing device, location information that indicates a location of permission data contained in the permission server, said permission data enabling reproduction of multimedia data,
• the reproducing device sending a request for acquiring permission data contained in the permission server, the request being received by a control device, the request comprising authentication information of the reproducing device, the control device being associated with charging information of an owner of the control device and the reproducing device not being associated with the charging information of the owner of the control device;
• receiving means for receiving, from a control device, at the location indicated by the location information, an endorsed request generated by the control device based on the request, said endorsed request comprising identification of the control device that is associated with the charging information of the owner of the control device,
• determination means for determining whether or not the reproducing device is authenticated based on the authentication information;
• and
• permission sending means for sending the permission data to the control device in response to the endorsed request in the case that the determination means determines that the reproducing device is authenticated.