ANALISIS KEAMANAN DATA PELANGGAN MENGGUNAKAN ALGORITMA VIGENERE CIPHER DAN PLAYFAIR CIPHER. LPPM. ITEBA [Internet]. 2023 Aug. 1 [cited 2026 Jun. 13];2(1):24-9. Available from: https://journal.iteba.ac.id/index.php/jurnalsiteba/article/view/132