Madhirjau, P. (2017) “Achieving Multi Layered security, Flexibility, Scalability, Access Control in Cloud Computing Using Hierarchical Attribute Set Based Encryption (HASBE)”, International Journal of Engineering and Computer Science. india, 4(04). Available at: http://ijecs.in/index.php/ijecs/article/view/1757 (Accessed: 23 April 2024).