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Journal of Inforamtion Science and Engineering, Vol.11 No.3, pp.371-389 (September 1995)
A New Dynamic Access Control Method
using Binary Locks*

Jinn-Ke Jan and Min-Jinn Jan#
Institute of Applied Mathematics
National Chung Hsing University
Taichung 402, Taiwan, Republic of China
#Institute of Information Engineering
National Cheng Kung University
Tainan, Taiwan, Republic of China

In this paper, a new dynamic access control method with binary locks is proposed. Mainly, each file (or resource) in our system is assigned as many binary lock values as necessary. The access privilege of a user to a file is revealed by applying operations on the file's locks. Our method can be used to update the access right with little effort. Moreover, insertion or deletion of a user or file is simple due to operations on binary locks that are easy and efficient. Compared to other methods proposed so far, the computations of our method are simple and efficient, and the storage space required for our system is rather economical as well.

Keywords: access control, binary coding, dynamic

Received March 24, 1994; revised December 16, 1994.
Communicated by Jhing-Fa Wang.
*This work was supported by the National Science Council, Republic of China, under Contract NSC83-0408-E005-006 and NSC84-2213-E005-016.