STEGANOGRAFI MENGGUNAKAN METODE LEAST SIGNIFICANT BIT (LSB) DENGAN KOMBINASI ALGORITMA KRIPTOGRAFI BLOCKING, PERMUTASI, PEMAMPATAN DAN VIGENERE

Abstract

Security and confidentiality are important aspects needed in the exchange of messages through the network media / internet. Cryptography and steganography techniques can be used to provide security protection to the secret message. Developing multiple cryptographic techniques with classic cryptography algorithm combinations blocking, permutation, compression and vigenre are integrated into the steganography using LSB (Least Significant Bit) methods is expected to protect confidential messages. This study aims to combine classical cryptography blocking, permutation, compression and vigenre integrated with steganography methods, to provide double protection to the secret message within an image/ digital image. Results from this study is an application named ”CryptoStego” which has succeeded in combining cryptography and steganography.”CryptoStego” application can be running on a Windows-based operating system using Microsoft Excel 2013 application, and can only hide text message into a bitmap or jpeg format images. Therefore it is necessary for the development of further applications can hide a message into a format other than a bitmap and jpeg images, and can hide text message into the media in addition to images such as audio and video, and can be used globally on all operating systems.