A Review paper on dual staganography

Abstract

Steganography is a process of hiding of a secret message within an ordinary message and extracting it at
the destination. Anyone else viewing the message will fail to know that it contains secret/encrypted data. Several
Steganography techniques have been developed and successfully applied till now. The issue we need to look for is the
degree of security and the complexity of the steganography model. The process of using steganography along with any
other cryptography algorithm is called dual steganography. This technique presents a two level secure and robust
approach which makes it quite difficult for hackers to identify the hidden data.
This paper is a review of various steganography techniques. It also and presents possible approaches for dual image
steganograph. Keywords- Dual Steganography, Image steganography, Video steganography, steganalysis,LSB
substitution.