CEET: A Compressed Encrypted & Embedded Technique for Digital Image Steganography
Palak Mahajan, Ajay Koul · IOSR Journal of Computer Engineering · 2014
In this information era, digital information sharing and transfer plays a vital role and their use has increased exponentially with the development of technology.Thus providing security of data is a topic of concern.Data hiding is a powerful tool that provides mechanism for securing data over insecure channel by concealing information within information.Steganography inherits data hiding concept and passes information through host files in such a way that the existence of the embedded secret is unknown.This paper presents a joint application of compression, encryption and embedding techniques for implementing digital image steganography.Compression technique generates noise in the image.Inorder to retain the noise distortion to a minimum level, LSB insertion method is used for embedding purpose where the bits are inserted at the last 2 LSB's of the image.In this proposed technique the secret information is initially compressed and then the resultant bits are encrypted.Finally these encrypted bits are embedded into an image.The main objective is to develop an application that increases the steganographic capacity and enhances the stego image quality while keeping the security intact.