Overview Of Techniques Of Stegnography On Various Media

computer engineering

The need of the hour is to maintain secret in the transactions of the e-commerce. The number of people buying and selling business transactions on Web is increasing at a phenomenal pace, which requires the special form of security to be added. The security of common public key was based on the Non polynomial complete problems. Those problems that are not assured to be solved by any universal machine. The steganography is the art of concealing the existence of information and it combines both the networking protocols use and security protocols. The word steganography, derived from the Greek language, literally means covered writing. This concept includes a high volume of methods of secret communication that hides the very existence of the message. Steganography is the technique of taking one piece of information and hiding it within another. Computer files, whether they are images, sound recordings, text and word processing files, or even the medium of the disk itself, all contain unused areas where data can be stored. The files can then be exchanged with no indication of the additional information that is stored within.

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