Securing Cloud Data: Combining SABAC Models, Hash-Tag Authentication with MD5, and Blockchain-Based Encryption for Enhanced Privacy and Access Control. International Journal of Engineering Research and Science & Technology, [S. l.], v. 18, n. 3, p. 149–165, 2022. Disponível em: https://ijerst.org/index.php/ijerst/article/view/436. Acesso em: 20 aug. 2026.