The Application Of CAS Single Sign-on In Screen-through System

With the popularity of mobile video terminals such as smart phones and tablets,TV is no longer the only way for users to watch video content.More and more users use mobile video terminals to enjoy video services.And the popularity of mobile Internet and video sites is a great challenge to the service concept of broadcasting and television operators.The main goal of the screen-through system platform is to extend the existing cable digital television broadcasting network services,expand the advantages of radio and television services from television to a variety of mobile video terminals,and expand the user audience.Using the broadcast transmission means of radio and television,combined with the advantages of mobile Internet,break through the barriers of DVB protocol and TCP / IP protocol,combined with the transmission mode of broadcast,unicast and multicast,open up the radio and television platform and the transmission network of mobile operators.The beneficial integration of broadcasting and television technology and mobile Internet transmission technology will give full play to the characteristics of stable broadcasting and television transmission network,low transmission cost and high broadcasting transmission coverage efficiency.Combining the high coverage of mobile Internet and the high viscosity of end-users,the technology innovation will create a powerful force for the business model of mobile video consumption.Apparatus.The back-end service of screen-through system can be divided into basic system,information system,advertising system,etc.Users can open screen-through and provide perfect program encryption and subscriber management functions,including smart card overhead users,authorization,card correspondence,terminal license functions.At the same time,it can also get program information,including program forms,information lists and other functions.It can also support the full ability of advertising.Signals over the transmission link are protected by CAS and managed through user authentication and authentication from screen-on gateway to intelligent terminal.Since screen access technology is connected to the home gateway,it can achieve a landing and be available at any time.Within the validity period of the certificate,users only need to log in at any terminal,then any other terminal device in the wireless network accessed by the gateway can access video resources through the gateway device without login.At the same time,after a login can access the user management system,authority management system,program subscription and on-demand system,do not need to re-login and authentication.Through the analysis of the status quo and technology development of single-point landing rescue at home and abroad,combined with the characteristics and application scenarios of various unified landing technologies,CAS technology is selected to realize single-point landing and unified authority management functions in screen-through system.Through the analysis of landing requirements,combined with the actual software and hardware application scenarios,the overall landing system architecture,landing process and interaction scheme are designed.On this basis,we completed the building of the single point landing system server and the development of the client.The test shows that the realization and application of CAS single-point login technology meets the requirements of user rights management in screen-through system.