SISTEM KEAMANAN PESAN DENGAN ALGORITMA RIVEST CODE 6 (RC-6) MENGGUNAKAN JAVA PADA SMARTPHONE BERBASIS ANDROID

Rapid expansion of telecommunication technology has brought a very big benefit for us. In an aspect of information system security is one aspect that is very important. One mechanism that is done to secure this is by cryptographic techniques with methods of encryption and decryption using the algorithm Rivest Code 6 (RC-6) using Java in Android-Based Smartphone.With the existence of telecommunication technology, many constraints such as distance, location, or time can be overcome. One of the technological results in telecommunication technology is Short Message Service or usually known as SMS. By using an SMS, the subscribers can do some exchange of text messages over each other. In this final assignment, developed an aplication on a cell phone to modify a text into ciphertext so that information from the message is not known by others. For sending an SMS, system encrypts plaintext into ciphertext using a key that is inputed by a sender and then send it to destination number. For receiving an SMS, system decrypt ciphertext into plaintext using a key that is inputed by receiver and then displaying plaintext to receiver. This application can be used by someone who wants to send a secret information to other through an SMS without fear of information from those messages will be known by others. RC6 is one of the most sophisticated cryptographic algorithms and can still be said to be unresolved. The application uses the algorithm Rivest Code 6 (RC-6) with the Java programming language as data encryption method that can be applied to Android-based smartphones. Keywords: Message Security Systems, Algorithm RC-6, Android