Saputra, Ripo, Juju Jumadi, and Abdussalam Al Akbar. “Implementation of Clasic Cryptography Algorithm in Encryption in Client Server Based Chatting Application”. Jurnal Komputer 2, no. 1 (December 31, 2023): 45 –. Accessed May 2, 2026. https://jurnal.geinrafflesia.com/index.php/JK/article/view/67.