IPTV系统中数字版权管理系统的研究
|
摘要
随着计算机多媒体技术、通信技术和宽带网络技术的迅猛发展,网络与电视相互融合和相互促进成为未来信息传播技术发展的趋势。IPTV使得人们可以方便快捷地享受越来越丰富的数字多媒体内容,但同时媒体内容和用户身份的安全性也在左右和影响数字媒体的价格和市场。因此保证IPTV的安全制作、分发、传播和收看,建立有效可行的访问控制和版权保护措施,IPTV才可能真正实施,才能保证IPTV应用的市场能够正常发展。所以,研究IPTV系统中的数字版权管理系统有着十分重要的意义。
通过在基于运营商级的端到端IPTV综合业务平台RollingStream奔流系统上研究IPTV的系统架构,同时对数字版权保护的两种方法进行分析,指出视频水印算法存在的缺点不能适应网络视频版权保护的要求,从而得出在IPTV系统中应采用以数据加密和防拷贝为核心的DRM(Digital Rights Management)技术进行数字版权保护的结论。针对DRM涉及到的三种关键技术和IPTV DRM的商业应用模式,分析了IPTV系统中DRM基本要素的实际含义,并简单介绍了三种DRM解决方案。
针对DRM系统的功能体系结构和信息体系结构,给出DRM系统构架、数据模型和数据流图,并且通过对系统模型的分析将数字版权管理的实现交给许可授权服务器,提出许可授权服务器的设计目标、系统控制流程及工作流程。
结合DRM的规范和几种实际解决方案,给出IPTV系统中DRM实现的总体方案,并对其中密钥获取技术的实现做了详细的分析,包括流媒体传输协议的头扩展方案、许可证服务器与密钥相关的实现方案、内容处理控制器密钥获取方案以及机顶盒密钥获取方案,最后给出IPTV系统中与DRM相关的媒体上载和频道添加运行界面。通过对该项目的研究,为今后IPTV DRM系统的实现和互通提供了一定的参考。
With the computer multimedia technology, communications technology and the rapid development of broadband Internet technology, the television network integration and promoting becomes the trend of the future development of information and communication technologies. IPTV makes it more convenient to enjoy rich digital multimedia content. However, the safety of media content and user identity impact the digital media and market prices. IPTV security of guaranteed production, distribution, transmission and watching, establishing an effective copyright protection and access control measures, IPTV could really implement, The market will be able to ensure the normal development of IPTV applications. Therefore, the study of the digital copyright system based on IPTV has great significance.
In this paper, the author studies IPTV system architecture which is based on carrier-class end-to-end integrated IPTV platform RollingStream system, at the same time analysing the digital copyright protection methods, pointing out the shortcomings of video watermarking algorithm can not meet network video copyright protection requirements, so in IPTV system it should use DRM (Digital Rights Management) technology for digital copyright protection which core is data encryption and anti-copy. According to the three key IPTV DRM technology and the commercial application model, the author analyses the actual meaning of IPTV DRM system basic elements and outlines three DRM solutions.
According to DRM system functional architecture and information architecture, the author provides DRM system architecture, data model and data flow graph, also through the analysis of system model, the author poses digital rights management realization to license authorization server, proposing design objectives, system control processes and work flow of licensing authorization server.
Combining DRM criterion with several practical solutions, this paper gives IPTV DRM system overall realization scheme, and provides a detailed analysis of key acquisition technologies, including the head expansion of Streaming Media Transfer Protocol, the realization of license server related to key, content engine controller and set-top-box key acquisition program. Finally media available and the channel add operation graph in IPTV DRM system are provided. Through the study of this item, this paper will provide certain reference to the realization of the IPTV DRM system and a certain amount of information exchange in the future.
通过在基于运营商级的端到端IPTV综合业务平台RollingStream奔流系统上研究IPTV的系统架构,同时对数字版权保护的两种方法进行分析,指出视频水印算法存在的缺点不能适应网络视频版权保护的要求,从而得出在IPTV系统中应采用以数据加密和防拷贝为核心的DRM(Digital Rights Management)技术进行数字版权保护的结论。针对DRM涉及到的三种关键技术和IPTV DRM的商业应用模式,分析了IPTV系统中DRM基本要素的实际含义,并简单介绍了三种DRM解决方案。
针对DRM系统的功能体系结构和信息体系结构,给出DRM系统构架、数据模型和数据流图,并且通过对系统模型的分析将数字版权管理的实现交给许可授权服务器,提出许可授权服务器的设计目标、系统控制流程及工作流程。
结合DRM的规范和几种实际解决方案,给出IPTV系统中DRM实现的总体方案,并对其中密钥获取技术的实现做了详细的分析,包括流媒体传输协议的头扩展方案、许可证服务器与密钥相关的实现方案、内容处理控制器密钥获取方案以及机顶盒密钥获取方案,最后给出IPTV系统中与DRM相关的媒体上载和频道添加运行界面。通过对该项目的研究,为今后IPTV DRM系统的实现和互通提供了一定的参考。
With the computer multimedia technology, communications technology and the rapid development of broadband Internet technology, the television network integration and promoting becomes the trend of the future development of information and communication technologies. IPTV makes it more convenient to enjoy rich digital multimedia content. However, the safety of media content and user identity impact the digital media and market prices. IPTV security of guaranteed production, distribution, transmission and watching, establishing an effective copyright protection and access control measures, IPTV could really implement, The market will be able to ensure the normal development of IPTV applications. Therefore, the study of the digital copyright system based on IPTV has great significance.
In this paper, the author studies IPTV system architecture which is based on carrier-class end-to-end integrated IPTV platform RollingStream system, at the same time analysing the digital copyright protection methods, pointing out the shortcomings of video watermarking algorithm can not meet network video copyright protection requirements, so in IPTV system it should use DRM (Digital Rights Management) technology for digital copyright protection which core is data encryption and anti-copy. According to the three key IPTV DRM technology and the commercial application model, the author analyses the actual meaning of IPTV DRM system basic elements and outlines three DRM solutions.
According to DRM system functional architecture and information architecture, the author provides DRM system architecture, data model and data flow graph, also through the analysis of system model, the author poses digital rights management realization to license authorization server, proposing design objectives, system control processes and work flow of licensing authorization server.
Combining DRM criterion with several practical solutions, this paper gives IPTV DRM system overall realization scheme, and provides a detailed analysis of key acquisition technologies, including the head expansion of Streaming Media Transfer Protocol, the realization of license server related to key, content engine controller and set-top-box key acquisition program. Finally media available and the channel add operation graph in IPTV DRM system are provided. Through the study of this item, this paper will provide certain reference to the realization of the IPTV DRM system and a certain amount of information exchange in the future.
引文
[1]张江,吴南山,杨士强. IPTV及其DRM需求.现代电视技术, 2005,04:62-66
[2]杨崑. IPTV主要技术的发展趋势.中兴通讯技术, 2006,06:18-22
[3]唐宏,陈戈. IPTVDRM技术标准分析与展望.电信技术, 2006,04:21-24
[4]陈宏. IPTV的数字版权技术.有线电视技术,2006,01:15-38
[5]唐宏.电信运营商DRM技术应用研究.数字通信世界,2006,11:61-63
[6]宿玉文,戴成,杨健. DRM在数字电视和IPTV的应用. 2005国际有线电视技术研讨会:379-384
[7]周芸. Rolling Stream系统概述.中国新通信, 2006,11:79-81
[8]孙磊.数字版权管理在多媒体文件及电子文档中的应用:[硕士学位论文].武汉:华中科技大学,2006
[9] Jill Gerhardt-Powals,Matthew H.Powals. Distance education:law attempts to catch up with technology (battle between copyright owners and academics).ACM Press,2000,32(1):335-342
[10] Edward W.Felten. DRM and public policy. Communications of the ACM,2005,48(7):112
[11] OzlemUzuner.Identifying expression fingerprints using linguistic information. MA:Massachusetts Institute of Technology,2005
[12]秦晓凌.流媒体数字版权管理系统的设计与实现:[硕士学位论文].上海:上海师范大学,2004
[13]周亚建,王学东.数字版权管理的关键技术.无线电通信技术,2002,06:45-47
[14]赖溪松,韩亮,张真诚.计算机密码学及其应用.北京:国防工业出版社,2000
[15]胡予睽等.对称密码学.北京:机械工业出版社,2002
[16]章春娥,裘正定.信息隐藏与数字水印技术.铁路计算机应用,2002,12:3-6
[17]张红旗等.信息网络安全.北京:清华大学出版社,2002
[18]王美华,范科峰,王占武. IPTV中的数字版权管理方案研究.中国有线电视, 2006,08:754-757
[19] L.Jean Camp.DRM:doesn’t really mean digital copyright management.NY:ACM Press,2002,11:78-87
[20]聂秀英. IPTV相关技术和标准.中国新通信(技术版).2006,12:71-75
[21]范科峰,赵新华.数字版权管理技术的研究现状及在数字电视系统中的应用.信息技术与标准化,2005,06:21-25
[22]蔡伟鸿,邓宇乔.一个具有公平匿名性的数字版权管理系统.计算机应用, 2006,12:2924-2926
[23]俞银燕,汤帜.数字版权保护技术研究综述.计算机学报, 2005,28(12):1957-1968
[24] Jason F.Reid,William J.Carlli.DRM,trusted computing and operating system architecture. Australia:Australian Computer Society.Inc,2005,01:127-136
[25] SaiHoKwok. Digital Rights Management for the On-line Music Business. ACM Sigecam Exchanges. 2002,3(3):17-24
[26] Qiong Liu,Reihaneh SafavirNaini,NicholasPaulSheooard. Digital Rights Management for Content Distribution.Australasian Information Security Workshop,2003,02:49-58
[27]范科峰,莫玮,赵新华.一种数字电视广播系统中的版权保护方案.网络安全技术及应用,2005,06:56-59
[28]董纳,杨静,宛红晓.基于Windows Media SDK的DRM系统开发.计算机系统应用, 2006,02:37-40
[29]许新光.数字版权管理的技术和难题.广播与电视技术,2006,12:75-79
[30]张福学.数字版权管理系统的功能和信息结构分析.情报杂志, 2002,06:26-27
[31] Gelareh Taban,Alvaro A.Cardenas,Virgil D.Gligor.Towards a secure and interoperable DRM architecture.ACM Workshop On Digital Rights Management,2006,10:69-78
[32] Chenyu Yan,Daniel Englender.Improving Cost,Performance,and Security of Memory Encryption and Authentication.Computer Architecture News,2006,34(2):179-190
[33] Eugene T.Lin and Reginald L.Lagendijk.Advance in Digital Video Content Protection.Proceedings of the IEEE, Special Issue on Advances in Video Coding and Delivery, 2005,93(1):171-183
[34] A.M.Eskicioglu.Protecting Intellecture Property in Digital Multimedia Networks.IEEE Computer, 2003,36(7):39-45
[35]吴鑫焱,周玉洁.OMA协议下的TS节目DRM解决方案.信息安全与通信保密,2006,12:115-117
[36]曾文明.流媒体DRM系统设计.信息安全与通信保密,2006,05:69-74
[37] Open Mobile Alliance:DRM Architecture Draft Version 2.0,2004
[38] Marc Fetscherin,Matthias Schmid.Comparing the usage of digital rights management systems in the music,film,and print industry.ACM International Conference Proceeding Series,2003,09:316-325
[39] Edgar Weippl. An Approach to Role-Based Access Control for Digital Content. IEEE Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC’01), 2001,04:290-294
[40] Sam Michiels,Kristof Verslype.Towards a software architecture for DRM,ACM Workshop On Digital Rights Management,2005,11:65-74
[41] Andreas Matheus.Authorization for digital rights management in the geospatial domain.ACM Press,2005,11:55-64
[42]张勇.数字版权管理系统的研究,设计和实现-DRM技术研究和专有文件管理系统设计:[硕士学位论文].四川:四川大学,2005
[43]程巍,龚黎云,高传善.数字版权管理的相关安全技术和实现方案.微型电脑应用,2004,02:9-14
[44]夏波涌.宽带IP音视频业务系统技术报告:[博士后学位论文].浙江:浙江大学,2005
[45]范智勇.流媒体系统和流媒体数字化版权管理技术的研究:[硕士学位论文].辽宁:东北大学,2003
[46]张红旗等.信息网络安全.北京:清华大学出版社,2002
[47] Thomas S.Messerges,Ezzat A.Dabbish.Digital rights management in a 3G mobile phone and beyond.NY USA:ACM Press,2003,10:27-38
[48]冯大鹏.基于OGG流媒体的版权管理系统研究:[硕士学位论文].云南:昆明理工大学,2004
[49] Nishimoto, Y, Baba, A. A digital rights management system for digital broadcasting based on home servers. IEEE transaction on broadcasting,2006,52(2):167-172
[2]杨崑. IPTV主要技术的发展趋势.中兴通讯技术, 2006,06:18-22
[3]唐宏,陈戈. IPTVDRM技术标准分析与展望.电信技术, 2006,04:21-24
[4]陈宏. IPTV的数字版权技术.有线电视技术,2006,01:15-38
[5]唐宏.电信运营商DRM技术应用研究.数字通信世界,2006,11:61-63
[6]宿玉文,戴成,杨健. DRM在数字电视和IPTV的应用. 2005国际有线电视技术研讨会:379-384
[7]周芸. Rolling Stream系统概述.中国新通信, 2006,11:79-81
[8]孙磊.数字版权管理在多媒体文件及电子文档中的应用:[硕士学位论文].武汉:华中科技大学,2006
[9] Jill Gerhardt-Powals,Matthew H.Powals. Distance education:law attempts to catch up with technology (battle between copyright owners and academics).ACM Press,2000,32(1):335-342
[10] Edward W.Felten. DRM and public policy. Communications of the ACM,2005,48(7):112
[11] OzlemUzuner.Identifying expression fingerprints using linguistic information. MA:Massachusetts Institute of Technology,2005
[12]秦晓凌.流媒体数字版权管理系统的设计与实现:[硕士学位论文].上海:上海师范大学,2004
[13]周亚建,王学东.数字版权管理的关键技术.无线电通信技术,2002,06:45-47
[14]赖溪松,韩亮,张真诚.计算机密码学及其应用.北京:国防工业出版社,2000
[15]胡予睽等.对称密码学.北京:机械工业出版社,2002
[16]章春娥,裘正定.信息隐藏与数字水印技术.铁路计算机应用,2002,12:3-6
[17]张红旗等.信息网络安全.北京:清华大学出版社,2002
[18]王美华,范科峰,王占武. IPTV中的数字版权管理方案研究.中国有线电视, 2006,08:754-757
[19] L.Jean Camp.DRM:doesn’t really mean digital copyright management.NY:ACM Press,2002,11:78-87
[20]聂秀英. IPTV相关技术和标准.中国新通信(技术版).2006,12:71-75
[21]范科峰,赵新华.数字版权管理技术的研究现状及在数字电视系统中的应用.信息技术与标准化,2005,06:21-25
[22]蔡伟鸿,邓宇乔.一个具有公平匿名性的数字版权管理系统.计算机应用, 2006,12:2924-2926
[23]俞银燕,汤帜.数字版权保护技术研究综述.计算机学报, 2005,28(12):1957-1968
[24] Jason F.Reid,William J.Carlli.DRM,trusted computing and operating system architecture. Australia:Australian Computer Society.Inc,2005,01:127-136
[25] SaiHoKwok. Digital Rights Management for the On-line Music Business. ACM Sigecam Exchanges. 2002,3(3):17-24
[26] Qiong Liu,Reihaneh SafavirNaini,NicholasPaulSheooard. Digital Rights Management for Content Distribution.Australasian Information Security Workshop,2003,02:49-58
[27]范科峰,莫玮,赵新华.一种数字电视广播系统中的版权保护方案.网络安全技术及应用,2005,06:56-59
[28]董纳,杨静,宛红晓.基于Windows Media SDK的DRM系统开发.计算机系统应用, 2006,02:37-40
[29]许新光.数字版权管理的技术和难题.广播与电视技术,2006,12:75-79
[30]张福学.数字版权管理系统的功能和信息结构分析.情报杂志, 2002,06:26-27
[31] Gelareh Taban,Alvaro A.Cardenas,Virgil D.Gligor.Towards a secure and interoperable DRM architecture.ACM Workshop On Digital Rights Management,2006,10:69-78
[32] Chenyu Yan,Daniel Englender.Improving Cost,Performance,and Security of Memory Encryption and Authentication.Computer Architecture News,2006,34(2):179-190
[33] Eugene T.Lin and Reginald L.Lagendijk.Advance in Digital Video Content Protection.Proceedings of the IEEE, Special Issue on Advances in Video Coding and Delivery, 2005,93(1):171-183
[34] A.M.Eskicioglu.Protecting Intellecture Property in Digital Multimedia Networks.IEEE Computer, 2003,36(7):39-45
[35]吴鑫焱,周玉洁.OMA协议下的TS节目DRM解决方案.信息安全与通信保密,2006,12:115-117
[36]曾文明.流媒体DRM系统设计.信息安全与通信保密,2006,05:69-74
[37] Open Mobile Alliance:DRM Architecture Draft Version 2.0,2004
[38] Marc Fetscherin,Matthias Schmid.Comparing the usage of digital rights management systems in the music,film,and print industry.ACM International Conference Proceeding Series,2003,09:316-325
[39] Edgar Weippl. An Approach to Role-Based Access Control for Digital Content. IEEE Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC’01), 2001,04:290-294
[40] Sam Michiels,Kristof Verslype.Towards a software architecture for DRM,ACM Workshop On Digital Rights Management,2005,11:65-74
[41] Andreas Matheus.Authorization for digital rights management in the geospatial domain.ACM Press,2005,11:55-64
[42]张勇.数字版权管理系统的研究,设计和实现-DRM技术研究和专有文件管理系统设计:[硕士学位论文].四川:四川大学,2005
[43]程巍,龚黎云,高传善.数字版权管理的相关安全技术和实现方案.微型电脑应用,2004,02:9-14
[44]夏波涌.宽带IP音视频业务系统技术报告:[博士后学位论文].浙江:浙江大学,2005
[45]范智勇.流媒体系统和流媒体数字化版权管理技术的研究:[硕士学位论文].辽宁:东北大学,2003
[46]张红旗等.信息网络安全.北京:清华大学出版社,2002
[47] Thomas S.Messerges,Ezzat A.Dabbish.Digital rights management in a 3G mobile phone and beyond.NY USA:ACM Press,2003,10:27-38
[48]冯大鹏.基于OGG流媒体的版权管理系统研究:[硕士学位论文].云南:昆明理工大学,2004
[49] Nishimoto, Y, Baba, A. A digital rights management system for digital broadcasting based on home servers. IEEE transaction on broadcasting,2006,52(2):167-172