A. C. ASHMITA. HAP-BB: Hidden Access Policy-Based Cloud Data Sharing with Block Design and Blockchain Methodology. International Journal of Intelligent Systems and Applications in Engineering, [S. l.], v. 11, n. 11s, p. 538 –, 2023. Disponível em: https://www.ijisae.org/index.php/IJISAE/article/view/7068. Acesso em: 11 sep. 2025.