A Two-Key-Lock-Pair Access Control Method Using Prime Factorization and Time Stamp

Min-Shiang HWANG  Wen-Guey TZENG  Wei-Pang YANG  

IEICE TRANSACTIONS on Information and Systems   Vol.E77-D   No.9   pp.1042-1046
Publication Date: 1994/09/25
Online ISSN: 
Print ISSN: 0916-8532
Type of Manuscript: PAPER
Category: Information Security
access control,  key-lock-pair,  prime factorization theorem,  time stamp,  

Full Text: PDF(468.1KB)>>
Buy this Article

Many methods, based on the concept of key-lock-pair have been proposed for access control in computer protection systems. However, the proposed methods still either lack of dynamic ability or need quite a lot of computation in performing requests of deleting users/files, inserting users/files, or updating access rights of users to files. In this paper we propose a two-key-lock-pair access control method that is based on the unique factorization theorem and a time stamp mechanism. Our method is dynamic and needs a minimum amount of computation in the sense that it only updates at most one key/lock for each access request, which has not been achieved before.