An Efficient Scheme of Document AccessUpon Hybrid Access Control in Campus

• Main Authors: Chun-Jung Chang, 張峻榮
• Other Authors: Shih-Hsiung Twu
• Format: Others
• Language: en_US
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/vuwxaa

碩士 === 中原大學 === 電機工程研究所 === 91 === Abstract In this thesis, we propose an efficient scheme of document access upon on hybrid access control to deal with access control rights for documents in digital campus. In the method, we discuss the access control in the digital campus. In order to simplify the complexity of access control of digital documents in campus, a two-layer access control is proposed. Based on such a two-layer scheme, a hybrid access control method including access control matrix, hierarchy access control and public access domain is applied to achieve an efficient way for user in campus to access their desired documents. At first, the user id, unit id and password of the user are given to login the system. Passing through the password authentication process, the legal user is allowed to enter Layer 1 to access the corresponding documents. The identities of the user’s accessible documents in Layer 1 are found according to the access rules designed by the author. The method of access control matrix is used in this Layer. Then, by the unit id of the user, he is allowed to enter Layer 2 to access the corresponding documents. The identities of user’s accessible documents in Layer 2 are found according to the access rules designed in this Layer. The methods of access control matrix and hierarchy access control are used in this Layer. Finally, the identities of accessible documents of the user including Layer 1 and Layer 2 are stored in an access stack. By this access stack, the accessible documents of the user will be searched according to the requirements of the user. The contributions of our works are as follows. (1) We propose a simple scheme for access control in campus. (2) The concept of hybrid access control is proposed to simplify the system design. It is believed that the results of our study in this thesis will be efficient and helpful for documents access control.