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IADIS International Conference WWW/Internet 2010GENERATING SECRET COVER IMAGE BY USINGRANDOM ART APPROACHRaghad Jawad AhmedComputer Science and Engineering Dept., University Politehnica of Bucharest ,RomaniaABSTRACTWe present an efficient approach to offer a cover image to embed an image within. The cover image has been constructedaccording to the characteristics of the embedded image through applying Random Art Approach. It is often uneasy tochoose a suitable image to embed the secret image within. To make it easier and more accurate, the characteristics of thesecret image are considered in a better and more accurate embedding.KEYWORDSSteganography, Information hiding, Random Art, Image Processing, Cryptography.1. INTRODUCTIONSteganography is the art and science of hiding information such that its presence cannot be detected.Motivated is growing concern about the protection of intellectual property on the Internet and by the threat ofa ban for encryption techniques. The interest in techniques for information hiding has been increasing overthe recent years [1]. Two general directions can be distinguished within information hiding scenarios:protection only against the detection of a message by a passive adversary and hiding a message such that noteven an active adversary can remove it. A survey of current Steganography can be found in [2].Steganography with a passive adversary is perhaps best illustrated by Simmons’ “Prisoners’ problem” [7].Alice and Bob succeed if Alice can send information to Bob such that Eve does not become suspicious,Hiding information from active adversaries is a different problem since the existence of a hidden message ispublicly known, such as in copyright protection schemes. Steganography with active adversaries can bedivided into watermarking and fingerprinting, Watermarking supplies digital objects with an identification oforigin; all objects are marked in the same way [4, 5, 6].In this paper the proposed approach produces a suitable cover image is needed to bury the embeddedimage. The present study adopts random image generation method considering embedded image, and therandom image has been constructed according to the properties of the embedded image through applyingRandom Art Approach. By applying the Random Art approach on the embedded image by using the randomimage generation grammar, we can build a suitable cover image that clasps the embedded image in it.2. LITERATURE REVIEWThe technique for secret hiding of messages in an otherwise innocent looking carrier message belongs to thefield of Steganography. The purpose of Steganography is to conceal the very presence of secret information;The field of steganography is very old. The most popular steganographic methods used by spies includeinvisible ink and microdots [3]. Microdots are blocks of text or images scaled down to the size of a regulardot in a text. Shifting words and changing spacing between lines in text documents or in images containingtext can also be used for hiding bits of secret messages. The gaps in human visual and audio systems can beused for information hiding. In the case of images, the human eye is relatively insensitive to high frequencies.This fact has been utilized in many steganographic algorithms, which modify the least significant bits of graylevels in digital images or digital sound tracks. Additional bits of information can also be inserted into355