TEKNIK PENGAMANAN PESAN DENGAN ALGORITMA RC4 DAN METODA LSB

Abstract

information. By using various techniques, many people are trying to access
information that they are should not have access to. With the development of
science, the application of information security techniques and data that have been
used in ancient times can be an alternative in securing data
communications. Cryptography is a science and art to maintain the security of
messages sent from one place to another. RC4, one cryptographic algorithm, is widely
applied to encrypt information. Cryptography can still be broken even if the process
takes time, cost and effort. Other data security techniques are also quite popular is
steganography. In contrast to cryptographic techniques, steganography can reduce
suspicion because the message is disguised is hidden in another file. LSB is one of
steganographic methods. LSB widely applied to insert a secret message into a digital
image.This software is made in order to secure the secret message into a digital image
using the RC4 algorithm and the method of LSB. The software is built using the
waterfall model of software development.The results of the development of this software
has been able to secure the secret message in the form of text into a digital image with
a BMP format using RC4 algorithm and the method of LSB.