Browsing by Author "WANG, PC"

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A NEW ACCESS-CONTROL METHOD USING PRIME FACTORIZATION
(1992-02-01)
HWANG, JJ
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SHAO, BM
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WANG, PC
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管理科學系
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資訊管理與財務金融系註：原資管所+財金所
Based on prime factorisation in number theory, a new but simple and efficient protection method for access control is proposed. This method has several advantages on performance over previous methods in the literature. Especially, a file/user can be added to or removed from the system without much effort. Excellence of this method is more pronounced for those systems where files are accessible to only a few users.
ADDING A VARIABLE IN GENERALIZED LINEAR-MODELS
(1985)
WANG, PC
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交大名義發表
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應用數學系
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National Chiao Tung University
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Department of Applied Mathematics
DISTRIBUTED ASSIGNMENT OF CRYPTOGRAPHIC KEYS FOR ACCESS-CONTROL IN A HIERARCHY
(1994-02-01)
SHAO, BM
;
HWANG, JJ
;
WANG, PC
;
資訊管理與財務金融系註：原資管所+財金所
;
Department of Information Management and Finance
The problem of how to control access in a user hierarchy by cryptography was explored recently. However, these researchers focus on the centralized environment. This paper presents a new distributed approach to assigning cryptographic keys which enables a member of the organization to derive, from his own key, the keys of members below him in the hierarchy, and consequently to have access to information enciphered under those keys. This proposed scheme also maintains the strength of adding new security classes into a partially ordered hierarchy without affecting the existing keys.