%0 Journal Article
%T Protection of Privacy in Visual Cryptography Scheme Using Error Diffusion Technique
%A Mr.A.Duraisamy
%A Mr.M.Sathiyamoorthy
%A Mr.S.Chandrasekar
%J International Journal of Computer Science and Network
%D 2013
%I IJCSN publisher
%X Visual Cryptography Scheme (VCS) is a cryptographictechnique which allows visual information to be encrypted insuch a way that the decryption can be performed by the humanvisual system without the aid of computers. As networktechnology has been greatly advanced, much information istransmitted via the internet conveniently and rapidly. At thesame time, the security issue is a crucial problem in thetransmission process. This method aims to build acryptosystem that would be able to encrypt any image, so thatthe encrypted image when intercepted by any person withmalicious intentions during the time of transmission of theimage is unable to decipher the image. Visual CryptographyScheme allows encoding a secret image into n sharesdistributed to n participants. The beauty of such a scheme isthat a set of qualified participants are able to recover the secretimage without any cryptographic knowledge and computationdevices. An extended visual cryptography scheme (EVCS) is akind of VCS which consists of meaningful shares (compared tothe random shares of traditional VCS). In this paper wepropose error diffusion technique to achieve good qualityreconstructed image and to increase security with minimumPixel Expansions and we can use this algorithm for differentimage formats.
%K Cryptosystem
%K Visual cryptography Scheme
%K Evcs
%K Error Diffusion Technique
%K Pixel Expansions
%U http://ijcsn.org/IJCSN-2013/2-2/IJCSN-2013-2-2-60.pdf