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一种流媒体数字版权管理系统的设计与实现 总被引:4,自引:0,他引:4
针对当前流媒体数字版权管理(Digital Rights Management,DRM)的现状,提出了一种基于三层密钥机制的流媒体DRM方案。介绍了该系统框架并作了安全性分析,然后对系统的实现方案作了详细的叙述。 相似文献
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基于可信计算平台的DRM应用研究 总被引:1,自引:0,他引:1
数字版权保护技术DRM已经成为数字网络环境下数字内容交易和传播的重要技术,用于保护数字内容的版权,控制数字内容的使用和传播。可信计算技术是确保终端系统安全与可信的技术。将可信计算平台引入DRM应用系统,提出了基于可信计算平台的DRM应用框架,讨论了可信任环境的建立,并描述了基于可信计算平台的DRM系统中数字内容的分发及策略的执行。 相似文献
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DRM系统的安全性依赖于其信任组件的安全性,该信任组件处于非安全的环境,其安全模型与基于互联网的系统的安全模型有着本质的区别。本文讨论了当前DRM系统的信任组件所采用的安全技术,并着重分析了基于DRM的电子书管理策略和信息组件模型的开发,提出了一个基于机器硬件指纹识别的DRM技术方案,该模型的实现将对数字图书馆的构建具有重要的实际意义。 相似文献
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本文首先阐述了DRM发射端的系统结构,根据发射端的系统结构标准,利用软件无线电技术在计算机中实现了DRM接收系统,并给出了一种通用的软件设计框架;最后给出了所实现的DRM软件接收系统的性能评测结果。 相似文献
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针对目前DRM系统只对特定类型的文件进行保护的问题,提出了与文件类型无关的通用的DRM系统框架.该框架采用过滤器驱动技术,在操作系统内核文件系统驱动层与I/O管理器问插入一个中层驱动程序--过滤器驱动程序,用来截获I/O请求,并在内核中对文件进行加/解密,解密后的文件由对应的播放器或阅读器来显示.系统框架在设计实现中表明了它的可行性. 相似文献
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软件组件的互操作性和透明性 总被引:2,自引:0,他引:2
互操作性和透明性独立于系统功能。分布式系统结构实现互操作性和透明性非常复杂,需要深入的软件工程知识、系统软件体系结构和新的系统互操作性观点。尽管使用技术可以获得特定情况下的互操作性,但不能解决一般意义下的透明互操作性问题。对分布式系统的互操作性和透明性问题进行了深入地分析与阐述,并探究了互操作性与软件体系结构的关系,着重讨论了交叉领域的互操作性要求。相信与软件体系结构结合起来的互操作性和透明性的实现将对大规模、复杂的分布式系统产生深远的影响。 相似文献
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Interoperability is one of the requisite features for existing enterprises in the increasing competitive and complex global market. In the last decade, enterprise interoperability has been developed and prescribed by various kinds of frameworks, methods, and techniques. However interoperability development is still not mature enough to become a science. Meanwhile, it keeps evolving according to different business requirement and market environment. Nowadays, networked environment causes unpredictable dynamical situations, thus sustainable interoperability becomes a new research dimension in the interoperability of enterprise systems and applications domain. In the sustainable interoperability, enterprise interoperability dynamics is one of the focal topics. This dynamic approach also called federated is originated from Enterprise Interoperability Framework of INTEROP NoE, which aims to establish interoperability on the fly. This paper presents current state on federated approaches to develop enterprise interoperability dynamics. Based on this study, a novel Federated interoperability approach is proposed. It aims at bridging the gap from interoperability concepts to the implementation of interoperable enterprise information systems development. This approach reuses distributed simulation interoperability concepts to facilitate and coordinate the communication between heterogeneous distributed information systems of the enterprises. This simulation part has been implemented into a software platform. This platform is complaint with the latest version of the high level architecture that is a distributed communication standard. This approach also proposes a development lifecycle that intends to reuse existing information systems without recoding them but by adapting them to the new requirements of interoperability dynamics. 相似文献
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Pramod A. Jamkhedkar Author Vitae 《Computers & Electrical Engineering》2009,35(2):376-394
Digital rights management (DRM) is increasingly becoming a necessity for content management and distribution in highly networked environments such as the Internet. However, very few DRM models have been able to achieve commercial success and acceptance among users. This paper analyzes the problems with current DRM environments and proposes an open layered framework for development of DRM systems, where different technologies can interoperate within the framework. Furthermore, interoperability is studied in terms of the proposed layered framework, and problems posed by the current rights expression languages (RELs) are identified. We conclude that a refactoring of current RELs based on a set of design principles is necessary to achieve a reasonable level of DRM interoperability. We emphasize the need for middleware services for DRM, along with their responsibilities and places of operation within the proposed framework. Finally, a specific prototype architecture is introduced that makes use of existing infrastructures in order to implement a DRM environment consistent with the design principles described in this paper. 相似文献
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开放系统中的互操作性 总被引:12,自引:0,他引:12
互操作性是开放系统和分布式计算领域中的关键技术之一。本文从几个不同的侧面对互操作性进行了详细的论述,包括:互操作性内涵的澄清,互操作性的分类和中间件技术。最后本文给出了一个已经实现了的互操作中间件OSEware的设计思想,另餐,本文还指出了对互操作性作进一步研究的两个方向,面向对象的互操作,ODP和CORBA之间的互操作。 相似文献
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Abstract Semantic Web technology is able to provide the required computational semantics for interoperability of learning resources across different Learning Management Systems (LMS) and Learning Object Repositories (LOR). The EU research project LUISA (Learning Content Management System Using Innovative Semantic Web Services Architecture) addresses the development of a reference semantic architecture for the major challenges in the search, interchange, and delivery of learning objects in a service-oriented context. One of the key issues, highlighted in this paper, is Digital Rights Management (DRM) interoperability. A Semantic Web approach to copyright management has been followed, which places a Copyright Ontology as the key component for interoperability among existing DRM systems and other licensing schemes like Creative Commons. Moreover, Semantic Web tools like reasoners, rule engines and semantic queries facilitate the implementation of an interoperable copyright management component in the LUISA architecture. 相似文献
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Digital Rights Management (DRM) is an important infrastructure for the digital media age. It is a part of the AVS (Audio and Video coding Standard) of China. AVS Trusted Decoder (ATD) that plays back digital media program according to rights conditions is the core of AVS DRM architecture. Adaptation layers axe responsible for translating or negotiating between ATD and peripheral systems. The Packaging Adaptation Layer (PAL), Licensing Adaptation Layer (LAL) and Rendering Adaptation Layer (RAL) will help ATD to gain the interoperability in various DRM environments. 相似文献
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本文阐述了数字版权管理的概念、模型及现有的数字版权管理系统,着重论述了数字版权管理的互操作问题,特别是互操作的概念、本质、特性以及实现互操作的方法,之后阐述了数字版权管理所出现的问题、原因和实际需求,重点阐述了数字版权管理互操作现有的解决方法.最后指出了安全问题和分层数字版权管理互操作是作为未来工作需要深入展开的. 相似文献
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随着地理空间信息应用的不断增加,完成一个复杂的任务需要多学科多部门的参加与合作,因此有必要将提出了5个层次的互操作模型。地理信息的互操作是集成和融合的基础。互操作可以在不同层次上实施。该文提出了5个层次的互操作模型。 相似文献
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