With the increasing availability of computer networks and the ever-increasing demand for network security, it is important to ensure confidentiality and reduce computational costs in access to databases.
Access control encryption plays a key role in ensuring confidentiality of databases and efficient management of computer networks. There has been active research on access control encryption, which has resulted in various modes and kinds. Particular intensity has been directed to the attribute-based encryption, which combines attribute-based access control model and encryption scheme, and many approaches have been proposed to improve security and efficiency for different applications.
Pak Su Ryon, a researcher at the Faculty of Information Science and Technology, has proposed an attribute-based multilayer access control scheme, which has 3 layers of attributes for performing different functions, with a purpose to ensure confidentiality and access control efficiency and to reduce computational cost.
The validity result of the effectiveness of the proposed method shows that the time of access control is reduced by less than 70% and the system ensures the confidentiality of databases while providing partial access to them and enables the system manager and the data owner to control access together.