| 摘要 |
PURPOSE: A method for transmitting and receiving contents is provided to supply an IPTV(Internet Protocol Television) service in a safe method by reducing communication overheads caused by applying a security system based on an existing CAS(Conditional Access System) in a mobile IPTV environment. CONSTITUTION: A security system for a mobile terminal comprises a mobile terminal(110), a set top box(120), a content server(130), and an authentication server(140). The mobile terminal performs network access authentication for the authentication server in an initial stage. The mobile terminal registers an ID(Identification Number) and a profile of the mobile terminal in the set top box. The mobile terminal receives an IPTV(Internet Protocol Television) service from the content server. The mobile terminal comprises a Smart phone, a tablet PC, and a PDA(Personal Digital Assistants), etc. The mobile terminal performs network access authentication through EAP(Extensible Authentication Protocol)-AKA(Authentication and Key Agreement). |
