METHOD FOR CONSTRUCTING DOMAIN BASED ON PUBLIC KEY AND IMPLEMENTING THE DOMAIN THROUGH UPNP

摘要

A method for constructing a domain based on a public key is provided to prevent the unauthorized third person from using the domain in the public key infrastructure by constructing own domain and applying the constructed domain to a home network using UPnP. A plurality of controlled devices transmit and receive instructions by a control point(190) and provide corresponding services to each equipment. One of the controlled devices is set as a master device(110) and the others are set as slave devices(120,130,140) for setting a domain. The devices, which are not included in the domain, are called as guests. The master device(110) and the slave devices(120,130,140) construct authorized domains. The control point(190) and the controlled devices construct a home network.