Uma Plataforma para esteganografia em áudio

Abstract

Since the Middle Ages, great civilizations have explored techniques for concealing messages, such as invisible inks, scalp pigmentation methods, among others. With the emergence of computer networks, many ill-intentioned individuals created various ways to attempt to steal information. On the other hand, there are those who strive to protect such information. From this issue arises the theme of this work: the use of audio steganography to conceal and hide information.The program applies the LSB (Least Significant Bit) technique to perform audio steganography with the distinctive feature of levels, in which the least significant bits are chosen based on the spacing of message insertion within the bytes. It also includes a function that traverses a byte array positioned in the level space to later retrieve the hidden message.The results indicate that smaller levels can hide larger messages but introduce audio distortion. Larger levels, on the other hand, can only conceal smaller messages but do not cause distortion in the audio.