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Deepika M P, Dr. A Sreekumar

Published in: International Journal of Current Engineering And Scientific Research ( IJCESR)
Volume- 4, Issue-9, pp.50-58, Sep 2017
DPI :-> 16.10046.IJCESR.2017.V4I9.5058.1949

Today digital media has replaced almost all forms of communication, information preservation and processing. Security in digital media has been a matter of serious concern. This has resulted in the development of, what we call cryptography. Secret sharing schemes and Visual secret sharing schemes, (aka visual cryptography schemes (VCS)) form parts of this large study. “Secret” means something that is kept or meant to be kept unknown or unseen by others. Some time secret is thought to be secure in a single hand and at other times it is thought to be secure when shared in many hands. A secret sharing scheme is a method of dividing secret information into two or more pieces called shares, distributing these shares among communication parties and retrieving the information by combining all or predefined sub collection of the shares. In this paper we will provide the readers an overview of the basic visual cryptography scheme constructions, in addition, we have proposed a visual cryptographic scheme based on Gray coding and XOR operation. Here the secret image is shared using Gray code and reconstructed by using the XOR operation. The proposed method is for the gray scale images. The proposed scheme doesn’t have pixel expansion. The original secret image, shares and the reconstructed secret image are in same size. So the scheme is a lossless scheme.

Key-Words / Index Term
Visual cryptography (VC), secret sharing schemes, Gray code, XOR operation

How to cite this article
Deepika M P, Dr. A Sreekumar , “VISUAL CRYPTOGRAPHY SCHEME USING GRAY CODE AND XOR OPERATION”, International Journal of Current Engineering And Scientific Research ( IJCESR), 4, Issue-9, pp.50-58, Sep 2017. DPI:16.10046.IJCESR.V4.I9.1949