Theoretical Background of steganography. Mesopotamian Journal of CyberSecurity, [S. l.], v. 2021, p. 22–32, 2021. DOI: 10.58496/MJCS/2021/005. Disponível em: https://mesopotamian.press/journals/index.php/CyberSecurity/article/view/11. Acesso em: 7 aug. 2025.