IMPLEMENTATION OF A STEGANOGRAPHICS SYSTEM USING THE LEAST SIGNIFICANT BIT SUBSTITUTION TECHNIQUE

Abstract

The term “steganography” is usually associated to hiding or covering data and information. The first part of the paper describes the historical development of steganography, its basic concepts and its use. Steganography was then classified based on the techniques used to hide data, into technical, linguistic and digital steganography. Emphasis is placed on a subtype of digital steganography whose carrier is an image – image steganogrpahy. Its LSB method, used to implement the system developed in this thesis, is described in detail. This thesis also presents the design and implementation of steganographic application that implements the LSB method. Finally, the implemented system is demonstrated using a series of graphical user interface (GUI) images.