Steganography and Steganalysis: Current Status and Future Directions

摘要

Steganography is the art of hiding a secret object in a cover media, while Steganalysis is the art of discovering the secret object from the cover media. With the increased emphasis in security, both steganography and steganalysis have recently drawn great research attention. While it is relatively easy to embed a secret message in a media such as an image, audio or video, the detection of an embedded message i.e., steganalysis is challenging because of the many different methods used in steganography and the continuous evolution of new steganography algorithms. In this paper we discuss the different techniques of steganography and steganalysis used in popular cover types i.e., images and audio. We also present an overview of some of the state-of-the-art tools used in this field. Our goal is to provide this as a survey paper identifying the current state of research, and possible future directions in this field.