Design a system for an approved video copyright over cloud based on biometric iris and random walk generator using watermark technique. Periodicals of Engineering and Natural Sciences, [S. l.], v. 10, n. 1, p. 178–187, 2022. DOI: 10.21533/pen.v10.i1.528. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/528. Acesso em: 9 jul. 2026.