Mahammad, Sameera, and Usha Rani K. “Dynamic and Revocable Multi File-Multi User Access Control Based Aggregate Key Cryptosystem to Secure Data Sharing in Cloud Computing”. International Research Journal of Multidisciplinary Technovation 7, no. 5 (September 25, 2025): 121–135. Accessed May 25, 2026. https://www.journals.asianresassoc.org/index.php/irjmt/article/view/2845.