Enhanced Security Providing using Visual Cryptography
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064

Survey Paper | Computer Science & Engineering | India | Volume 3 Issue 12, December 2014

Enhanced Security Providing using Visual Cryptography

Ketan Raju Kundiya, Ram B. Joshi

A visual cryptography scheme (VCS) is a secret sharing of secret image shares which involves dividing the secret image into number of shares and a certain number of shares are sent over the network. The decryption process involves stacking of the shares to get the secret image. The main advantage of visual cryptography scheme is that a number of qualified shares are able to recover the secret image without any cryptographic knowledge, calculation and computation devices. Simple Visual Cryptographic technique is not secure. Because simple visual cryptography scheme only deals with creation of secret share and just combined it at receiver side. In the proposed system we apply visual cryptography technique. The image is to be transferred on the network (also known as secret image) is first compressed and then hidden by cover image using LSB technique. To enhance security, additional security measures are applied further to get encrypted image using symmetric key algorithm. The shares are generated from the encrypted image using RNS (Residual Number System) algorithm. Next share stacking procedure is applied using CRT (Chinese Remainder Theorem) algorithm to get final encrypted image at receiver side. Further, decryption of final encrypted image is done by using same algorithm which is used for encryption purpose. By applying this technique security and quality of image is improved and pixel expansion problem will get reduced.

Keywords: Visual Cryptography, Visual Secret Share, Share Stacking, Security

Edition: Volume 3 Issue 12, December 2014

Pages: 2447 - 2449

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How to Cite this Article?

Ketan Raju Kundiya, Ram B. Joshi, "Enhanced Security Providing using Visual Cryptography", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=SUB141016, Volume 3 Issue 12, December 2014, 2447 - 2449

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