M. Kanaga, S. Jayanthi, and S. Sivagami. “Secure Authentication In Cloud Big Data With Hierarchical Attribute Authorization Structure”. International journal of intellectual advancements and research in engineering computations 10, no. 3 (September 5, 2022): 256–259. Accessed December 2, 2022. https://ijiarec.com/ijiarec/article/view/1745.