基于OSMF的动态流媒体版权保护系统研究与实现
发布时间：2018-08-08 18:00
【摘要】：现代传播媒介、宽带技术、多媒体传播、数字化与互联网的飞速发展,使得数字化文化作品变得普及,流媒体知识产权的保护越发引起人们的重视。Adobe等公司相继推出了自己的DRM解决方案。虽然DRM系统已经日益被大家重视并加以开发利用,但是通过网络传输的加密视频,依然有一些亟待解决的问题：如果用户想从流媒体的中间开始浏览,而非流媒体的开头,那么一般的加密系统只能使用户在等流媒体全部下载到本地之后才能观看,大大降低了用户体验。另外,用户浏览的内容会存在当地缓存当中,如果此问题得不到解决,那么版权保护只能是一纸空谈。 针对现有的DRM解决方案,结合RSA、AES等数据加密算法,以及可供二次开发的开源媒体框架(OSMF)播放器,本文提出了一种基于开源媒体框架的动态流媒体版权保护算法。开源媒体框架以及对媒体的碎片化处理技术,使得用户对于浏览内容的动态拖拽成为可能,同时,对内容的一次永久性加密,并且分情况授权用户有条件的解密,使得用户对内容的访问权限仅在授权者规定的条件下适用,有效的解决了一次解密永久访问的情况。测试结果表明,基于开源媒体框架(OSMF)的动态流媒体版权保护算法不仅有效的防止了流媒体的非授权性扩散,而且大大提高了用户体验。 最后,对本论文工作进行了总结,并指出了系统在以后的工作中需要进一步完善和改进的地方。
[Abstract]:With the rapid development of modern media, broadband technology, multimedia communication, digitalization and the Internet, digital cultural works become popular. The protection of streaming media intellectual property has attracted more and more attention. Adobe and other companies have launched their own DRM solutions. Although the DRM system has been paid more and more attention to, there are still some problems that need to be solved: if users want to browse from the middle of streaming media, rather than the beginning of streaming media, there are still some problems that need to be solved urgently in the transmission of encrypted video through the network. So the general encryption system can only make users wait for streaming media to download to the local before viewing, greatly reducing the user experience. In addition, user browsing content will be stored in the local cache, if this problem is not resolved, copyright protection can only be a piece of empty talk. Aiming at the existing DRM solutions, combining with the data encryption algorithms such as RSA-AES and the (OSMF) player, an open source media framework, a dynamic streaming media copyright protection algorithm based on the open source media framework is proposed in this paper. The open source media framework and the fragmentation of the media make it possible for users to dynamically drag and drop the content, at the same time, encrypt the content once and for all, and authorize the user to decrypt it conditionally. Make the user access to the content only under the conditions specified by the licensor, effectively solve the situation of a decryption of permanent access. The test results show that the dynamic streaming media copyright protection algorithm based on open source media framework (OSMF) not only effectively prevents the unauthorized proliferation of streaming media, but also greatly improves the user experience. Finally, the paper summarizes the work of this paper, and points out that the system needs further improvement in the future work.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP309;TP311.52
本文编号：2172581
[Abstract]:With the rapid development of modern media, broadband technology, multimedia communication, digitalization and the Internet, digital cultural works become popular. The protection of streaming media intellectual property has attracted more and more attention. Adobe and other companies have launched their own DRM solutions. Although the DRM system has been paid more and more attention to, there are still some problems that need to be solved: if users want to browse from the middle of streaming media, rather than the beginning of streaming media, there are still some problems that need to be solved urgently in the transmission of encrypted video through the network. So the general encryption system can only make users wait for streaming media to download to the local before viewing, greatly reducing the user experience. In addition, user browsing content will be stored in the local cache, if this problem is not resolved, copyright protection can only be a piece of empty talk. Aiming at the existing DRM solutions, combining with the data encryption algorithms such as RSA-AES and the (OSMF) player, an open source media framework, a dynamic streaming media copyright protection algorithm based on the open source media framework is proposed in this paper. The open source media framework and the fragmentation of the media make it possible for users to dynamically drag and drop the content, at the same time, encrypt the content once and for all, and authorize the user to decrypt it conditionally. Make the user access to the content only under the conditions specified by the licensor, effectively solve the situation of a decryption of permanent access. The test results show that the dynamic streaming media copyright protection algorithm based on open source media framework (OSMF) not only effectively prevents the unauthorized proliferation of streaming media, but also greatly improves the user experience. Finally, the paper summarizes the work of this paper, and points out that the system needs further improvement in the future work.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP309;TP311.52
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