Study On Digital Rights Management Of Streaming Media Of Mobile Internet

With the rapid development of mobile communication technology,the mobile internet has higher data transmission rate and data service capability.There are more and more mobile internet streaming media systems that can be downloaded from internet, the streaming media business is becoming increasingly popular, up to the present, streaming media technology has been widely used in a wide variety of fields, including online play, video on demand, internet TV and other internet business.Mobile internet streaming media technology has changed every aspect of people's lives,enlarging channel of information for people.The application of mobile internet streaming media can be used anywhere,anytime.How to pretcet high-value content of streaming media is increasingly important under the mobile internet.The digital essence of streaming media makes it easy to be copied while the mobile internet privode people the convenience of getting the digital essence of streaming media,which makes the legitimate rights of owner of media content vulnerable.Therefore,researches on streaming media copyright protection technologies of mobile internet have important theoretical significance and commercial value.We address these problems above as follows.First,various details about mobile internet technology,streaming media technology and digital copyright protection technology are presented.This paper presents a distributed systme of streaming media copyright protection under the mobile internet based on PKI, based on researches on existing streaming media copyright protection technologies of mobile internet.The proposed framework separates media content and license,in which the media content is stored in streaming media server and the license is stored in streaming media license server.Secure distribution,access control and operational management are applied to the system.Digital content owners define different permissions for digital content,corresponding to different commercial prices.The user must pay for the permissions before they consume the stream media on the terminal.