Date Added: Jul 2011
Steganography is a science that focuses on hiding specific messages using specialized techniques in such a way as only the sender and the intended receiver are able to disclose it. There are many different protocols and embedding techniques that enable one to hide data in a given object. However, all of the protocols and techniques must satisfy a number of requirements so that steganography can be applied. The secrete message can be hidden in text or video file. The main problem of existing steganography is that it should be assumed that the information to be hided is relatively short compared to the cover file.