MUSTAFA, Nada Abdul aziz. Hiding a Secret Message Encrypted by S-DES Algorithm . Journal of Kufa for Mathematics and Computer, [S. l.], v. 10, n. 2, p. 80–85, 2023. DOI: 10.31642/JoKMC/2018/100213. Disponível em: https://journal.uokufa.edu.iq/index.php/jkmc/article/view/12415. Acesso em: 29 feb. 2024.