An Efficient Key Assignment Scheme for Access Control in a Large Leaf Class Hierarchy

ASIAIR > College of Computer Science > Department of Computer Science and Information Engineering > Journal Artical > Item 310904400/18696

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Title:	An Efficient Key Assignment Scheme for Access Control in a Large Leaf Class Hierarchy
Authors:	黃明祥;Hwang, Min-Shiang
Contributors:	資訊工程學系
Keywords:	Access control;Cryptography;Data security;Hierarchy;Key management
Date:	2011-02
Issue Date:	2012-11-26 05:57:13 (UTC+0)
Abstract:	The employees of an organization are usually divided into different security classes to authorize the information retrieval, and the number of leaf classes is substantially larger than the number of non-leaf classes. Additionally, the alternations in leaf classes are more frequent than in non-leaf classes. We proposed a new key assignment scheme for controlling the access right in a large POSET (partially ordered set) hierarchy to reduce the required computation for key generation and derivation with the storage amount of data decreased.
Relation:	INFORMATION SCIENCES; 181(4):917–925
Appears in Collections:	[Department of Computer Science and Information Engineering] Journal Artical

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