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The Computer Journal 1987 30(3):249-253; doi:10.1093/comjnl/30.3.249
© 1987 by British Computer Society
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An Information Protection Scheme Based upon Number Theory

C. C. Chang *

Institute of Applied Mathematics, College of Science and Engineering, National Chung Hsing University, Taichung, Taiwan 400, Republic of China

We propose a new mechanism that fulfils the requirements of a single key-lock (SKL for short) information protection system. Using our method, each user is given a key, each file a lock, and an operation on the key of a user with the lock of a file yields the user's access privilege on the secured file.

Received October 1985.

* Institute of Applied Mathematics, College of Science and Engineering, National Chung Hsing University, Taichung, Taiwan 400, Republic of China


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