A Survey on Steganography and Different Types

Abstract

The use of internet has grow rapidly form last few year. This growth has increased the demand for
techniques that can ensure information security. The Feature of information hiding has received much attention in
the recent years as security of information has become a big concept in this internet era. We are also surrounded by a
world of secret communication, where human of all types are transmitting information as innocent as an encrypted
credit card number to an online-transaction and as insidious as a terrorist plot to hijackers. Steganography is a
technigue where information theory, spread spectrum, and cryptography technologies are brought together to satisfy
the need of privacy for Internet. Security of data is a challenging issue and transmitting the Secured data is again
most challenging. Data hiding from intruders and also hiding the fact that any data is hidden is one of the techniques
to hide the data in a secure manner called Steganography. In this paper I have analalyze steganography and its
types, its uses, how it is different from cryptography and Model of Steganography.