AN OVERVIEW OF DATA HIDING TECHNIQUE :- STEGANOGRAPHYJournal: INTERNATIONAL JOURNAL OF DATA & NETWORK SECURITY (Vol.1, No. 2)
Publication Date: 2013-01-01
Authors : Ravneet Kaur; Gagandeep Singh; Sajinder Singh;
Page : 34-36
Keywords : cryptography; fragile; robust; bitmap images;
Steganography is the art of hiding information and an effort to conceal the existence of the embedded information. It serves as a better way of securing message than cryptography which only conceals the content of the message not the existence of the message. Original message is being hidden within a carrier such that the changes so occurred in the carrier are not observable. In this paper we will discuss how digital images can be used as a carrier to hide messages. . Steganography is a useful tool that allows covert transmission of information over an over the communications channel. Combining secret image with the carrier image gives the hidden image. This paper will take a look at this technology by introducing the reader to various concepts of Steganography, a brief difference between cryptography and ?Steganography and a look at how? Steganography works.
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