A Stenography Application for Hiding Student Information into an Image

Abstract

Information security is a major problem today. Different approaches and methods are introduced every day for data protection. One of them is steganography. The word steganography combines the Greek words steganos (sigma tau epsilon gamma alpha nu omicron sigma), meaning covered, concealed, or protected, and graphein (gamma rho alpha phi epsilon iota nu) meaning writing. The purpose of steganography is to construct the stego object by placing important information invisible into the ordinary cover object (image, sound, video, text, etc.) and to transmit it to the recipient. In this study, it is aimed to strengthen the LSB technique which is one of the steganography methods by suggesting the use of mask which will provide the least change on the image while hiding the data into a digital image. In the proposed method, the data is also compressed by the LZW algorithm, thus allowing more data to be hidden.