“…Cryptography method is one of the methods used to improve data security because it can perform the process of encryption and decryption. There are several encryption algorithms that are already open for study such as DES, AES, TwoFish, BlowFish, RC2, RC4, RC5, RSA [23], [24] (Rivest, Shamir, Adleman) and others. This study discusses the implementation of one time encryption algorithm pad and vigenere cipher to secure text messages [25], [26].…”