Steganohide: An Information Hiding System Using Steganography Technique

Steganography, a subset of data hiding techniques, seeks to conceal sensitive information within any form of digital media. The goal of a steganographyplan at the sender's end is to incorporate a secret message into an innocent-looking image or any other file format known as a cover object. Meanwhileat the receiver’s side its goal is to extract the hidden information or message. Steganalysis, on the other hand, is the inverse process of steganographyand attempts to detect steganography. The role and development of steganalysis has increased when steganography was used for vulnerable activitieslike the embedding of harmful content. Moreover, the development of effective steganographic methods has made it very difficult to decipher them. Thispaper discusses in depth about the various existing steganalysis techniques and suggests improvements that can be brought about to prevent the abuseof steganography. It includes implementation of an encryption and decryption algorithm which evades usage of a secret key in the process. An interfacethat facilitates the same has also been developed and discussed in detail. It also discusses the further scope and challenges in both steganography andsteganalysis.