PURNOMO SIDIK, A. Improve The Security of The Vigenère Cypher Algorithm by Modifying the Encoding Table and Key. International Journal of Basic and Applied Science, [S. l.], v. 10, n. 2, p. 42–50, 2021. DOI: 10.35335/ijobas.v10i2.54. Disponível em: https://ijobas.pelnus.ac.id/index.php/ijobas/article/view/54. Acesso em: 1 may. 2026.