A. C. Ashmita. HAP-BB: Hidden Access Policy-Based Cloud Data Sharing with Block Design and Blockchain Methodology. Int J Intell Syst Appl Eng [Internet]. 2023 Aug. 30 [cited 2025 Sep. 19];11(11s):538 -. Available from: https://ijisae.org/index.php/IJISAE/article/view/7068