A licence hub including a hub apparatus to which one or more apparatus and devices can be electrically connected, and a safe storage device for storing therein keys used to decode the encrypted contents data is added to the existing system to construct a licence network. A controller of the licence network acquires the information of various kinds of apparatuses and devices which are electrically connected to the licence hub, and determines automatically the apparatus and/or the device suitable for executing the processing when carrying out the playback of contents or movement of the key to execute these processings.