کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
451532 694315 2007 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Key management for content access control in a hierarchy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Key management for content access control in a hierarchy
چکیده انگلیسی

The need for content access control in hierarchies (CACH) appears naturally in all contexts where a set of users have different access rights to a set of resources. The hierarchy is defined using the access rights. The different resources are encrypted using different keys. Key management is a critical issue for scalable content access control. In this paper, we study the problem of key management for CACH. We present main existing access control models, and show why these models are not suitable to the CACH applications, and why they are not implemented in the existing key management schemes. Furthermore, we classify these key management schemes into two approaches, and construct an access control model for each approach. The proposed access control models are then used to describe the schemes in a uniform and coherent way. A final contribution of our work consists of a classification of the CACH applications, a comparison of the key management schemes, and a study of the suitability of the existing schemes to the CACH applications with respect to some analytical measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Networks - Volume 51, Issue 11, 8 August 2007, Pages 3197–3219
نویسندگان
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