International Journal of Computer Applications
Steganography is the art and science of hiding the information in the carrier object. The main objective of steganography is to hide the existence of data. Lots of advancements has been done in the use of carrier medium, started from image, sound, video and network packets and protocols. Information hiding inside image, audio and video is often called digital steganography whereas if network packets and/or protocols are used then it is called network steganography. Using this technique the users can send small amount of information confidentially.