On Usage Control of Multimedia Content in and through Cloud Computing Paradigm

T. Ali, M. Nauman, Fazl e Hadi, F. B. Muhaya
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引用次数: 16

Abstract

Multimedia content dissemination is a complex problem because of the multitude of policy types that providers may wish to associate with their content. There have been quite a few efforts at defining security policies and models which can cater to these types of requirements. Usage control models are the new breed of access control models that allow description of comprehensive policies for usage of protected content. In this paradigm, decisions regarding access to objects is not limited to request time only. It is coupled with the usage of the protected objects and becomes a continuous process carried out in parallel to the usage. The realization of usage control has been a long standing research problem to overcome the issue of loss of control in secure document dissemination. With the emergence of cloud computing, documents are stored in the cloud, the document viewers and editors themselves reside in the cloud and are accessed from thin clients such as browsers. We note that such scenarios provide an ideal opportunity for the realization of usage control for securing the usage of documents based on the stakeholders' policies. In this paper, we argue for a better realization of different features of the UCON model in the cloud based applications. We propose a robust architecture to provide fine-grained control over usage of protected objects through the use of emerging cloud computing paradigm. We present the design principles for this realization and discuss our prototype implementation of the proposed architecture.
云计算范式下多媒体内容的使用控制
多媒体内容分发是一个复杂的问题,因为提供者可能希望将多种策略类型与其内容相关联。在定义能够满足这些类型需求的安全策略和模型方面已经做了相当多的努力。使用控制模型是一种新的访问控制模型,它允许描述受保护内容使用的综合策略。在这个范例中,关于对象访问的决策不仅限于请求时间。它与受保护对象的使用相耦合,成为与使用并行进行的连续过程。为了克服安全文件传播中失控的问题,实现使用控制一直是一个长期存在的研究问题。随着云计算的出现,文档存储在云中,文档查看器和编辑器本身驻留在云中,并且可以从瘦客户机(如浏览器)访问。我们注意到,这样的场景为实现使用控制提供了一个理想的机会,可以根据涉众的策略保护文档的使用。在本文中,我们讨论了在基于云的应用程序中更好地实现UCON模型的不同特征。我们提出了一个健壮的架构,通过使用新兴的云计算范式,对受保护对象的使用提供细粒度的控制。我们提出了这种实现的设计原则,并讨论了我们提出的体系结构的原型实现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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