A Recent Survey on Information-Hiding Techniques

As the touchy development of Web and high-speed communication channels in some recent years, the privacy, security and access protection of the sensitive information becomes the prime concern. To guard this sensitive information from illegal access, a number of methods like steganography, cryptography, hashing and authentication have been proposed and are put into practice. Hiding of information can be viewed as a type of steganography, which aims to embed data into digital media (like images, audio, video, etc.,) for annotation, identification and copyright. This paper explores the use of information-hiding techniques and some recent surveys on information-hiding techniques with respect to size of hide data and peak signal to noise ratio.