Critical analysis of stegauography "An art of hidden writing"

Abstract

Steganography is the art of hiding information inside another medium while the presence of this embedding is invisible by human perception. In disparity to cryptography, steganography have a tendency to conceal the presence of the message or communication appearance, while cryptography tries to hide the content of the clandestine message. Hiding the presence of message or communication can be made by inserting a clandestine message into the clear cover medium which no one besides the correspondent and the receiver can imagine. This paper present the review and critical analysis of steganography methods projected during the recent years that are from 2011 to 2015. Many schemes are mentioned with their technical terms, main logic, advantages and disadvantages in terms of important measures. Critical analysis is based on the type of cover object used, domain of the algorithm and important properties that are used as evaluative measures for steganographic system.