IMPLEMENTASI METODE RC6 UNTUK KEAMANAN PESAN BERBASIS ANDROID

Abstract

Message security in communicating using a phone or smartphone is very important. Given the content or data in the message is very confidential. The development of telecommunications technology in the era of globalization that occurs very rapidly helps people to communicate and one of the communication technologies is using telephone devices. Mobile phones or smartphones have been equipped with various features and one of them is a short message service (SMS). However, messages sent via telephone or smartphone that are considered very important data can pose a threat of leakage of data content in the message during the communication process. Therefore, it is necessary to do research on software development to improve message security through encryption and decryption. This research was conducted to analyze security by implementing the RC6 algorithm on android-based cryptography and SMS applications. This application uses Android Studio 4.0 as editor and RC6 algorithm. The process of this research is to encrypt the original message to produce a message ciphertex. Then decrypt the ciphertext of the incoming message into the original message. With the application of cryptography for SMS messages, the level of information expected for message security can be increased so that messages will be more secure from unauthorized or irresponsible access. As well as giving a sense of comfort and not worrying about the contents of the message leaking by the sender to the recipient of the message.

Keywords: Android, Decryption, Encryption, RC6, SMS.