Proposed Hybrid Cryptosystems Based on Modifications of Playfair Cipher and RSA Cryptosystem. Baghdad Science Journal, Iraq, Baghdad, v. 21, n. 1, p. 0151, 2024. DOI: 10.21123/bsj.2023.8361. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/8361.. Acesso em: 23 jan. 2025.