Perancangan Aplikasi Enkripsi Messenger dengan Menggunakan Metode RC-6 Berbasis Android

Current technological developments allow humans to communicate and exchange information remotely. Along with that, the demand for the confidentiality of information exchanged is increasing. Therefore, a branch of science was developed that studies ways of securing data or better known as cryptography. The RC6 algorithm is included in cryptography that has strong security and includes symmetric cryptography (has the same key when encryption and decryption). This application performs cryptography on text in the form of letters, the results of this study are in the form of an android-based chat application that can send messages that have been encrypted using the RC6 algorithm, so that the confidentiality of these messages can be maintained.