Steganography is a method of secret communication that hides the existence of hidden message. The hidden message can be text, image, audio, video, etc. The innocent files can be a cover image after inserting the message into the cover image using stego-key, it is reffered to as stego-image. Steganography becomes more important due to the exponential growth and secret communication of potential ...

Steganography is the skill of communicating secret data by embedding it into multimedia carriers like image, audio, videos. The ultimate goal here is to mask the very existence of the embedded data. Even though the term Steganography has been known for thousands of years, its digital form came about only lately and research was make stronger after the depressing event on 11 Sep 2001(Twin towers...

Recently, merging signal processing techniques with information security services has found a lot of attention. Steganography and steganalysis are among those trends. Like their counterparts in cryptology, steganography and steganalysis are in a constant battle. Steganography methods try to hide the presence of covert messages in innocuouslooking data, whereas steganalysis methods try to reveal...

Steganography is the art and science of writing hidden messages in such a way that no one, excluding the sender and deliberated recipient, suspects the message existence , a form of security through obscurity. Steganography techniques can be utilized to images, a video file or an audio file. Typically, steganography is written in characters including hash marking, but its usage within images is...

When it comes to information hiding it is always a question whether to use Steganography or cryptography. Cryptography scrambles the message so that is it unrecognizable and without proper key the Encrypted message is useless. With the help of steganography messages can be passed over the network discreetly as it provides secure data hiding. It is very challenging and emerging field of research...

In the last few time, we have seen a lot of new and powerful steganography techniques. In the subsequent paper we go over some general concepts and thoughts that are appropriate toward steganography. Specifically we found a structure and define idea of security for a steganography system and illustrate how conventional definitions do not really sufficiently cover image steganography and an offe...

Today, secure communication is the need of the society. Steganography and Cryptography are most popular techniques used for secure communication in the present era. Steganography is used hide the existence of data within some cover media like image file, audio file, video file, text file etc. But the most commonly used media for steganography is image file. There are many techniques of image st...

Steganography is defined as the science and art of writing hidden messages in such a way that no one apart from the intended recipient knows of the message existence. Due to these reasons it has become absolutely essential to keep the systems free fr om different internet attacks and take steps to eliminate any risks. Linguistic steganography, a type of steganography is defined as a collection ...

Steganography is an art of hiding secret message in an unsuspecting cover document. Over the many years many systems have been proposed for the same. With the advancement of technical know-how even the cover medium has under gone certain changes. Generally the cover mediums used include text, image, audio and video. Text steganography is one of the oldest techniques of steganography which still...

Pixel-value differencing (PVD) steganography generates step effects or abnormal high fluctuations in PVD histogram. Since steganalysis exploits these artifacts to defeat the PVD steganography, modified PVD (MPVD) steganography preserving the PVD histogram is recently presented. This paper proposes a novel steganalysis method, in which we embed message one more time into the suspicious image to ...