Advanced Steganographic Technique Based on Extended Visual Cryptography Scheme

International Journal of Computer Science and Engineering
© 2015 by SSRG - IJCSE Journal
Volume 2 Issue 5
Year of Publication : 2015
Authors : Harshal S. Tekade, Prof. Baisa L. Gunjal

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Citation:
MLA Style:

Harshal S. Tekade, Prof. Baisa L. Gunjal, "Advanced Steganographic Technique Based on Extended Visual Cryptography Scheme" SSRG International Journal of Computer Science and Engineering 2.5 (2015): 1-5.

APA Style:

Harshal S. Tekade, Prof. Baisa L. Gunjal, (2015). Advanced Steganographic Technique Based on Extended Visual Cryptography Scheme. SSRG International Journal of Computer Science and Engineering 2.5, 1-5.

Abstract:

In steganography, a message is hidden in such a way that no one apart from the intended recipient knows of the existence of the message. It is an art of concealing using which we are sending secret message by hiding its content. Steganography is comprised of two algorithms: one for embedding data and one for extraction. Visual cryptography is a technique of secret sharing in which images are distributed as shares in such a faction that, when these share images are superimposed, a message hidden secretly in the image is revealed. In extended visual cryptography (EVC), the share images are constructed to contain meaningful cover images. Unique size of secret images, share images and recovered images is key requirement to improve quality in visual. That way we can maintain the perfect security of the original extended visual cryptography approach.As a part of project, secret text message is encrypted and hide behind the 2 cover images while sharing. At the receiver end message is re-constructed in image form and can be viewed by superimposing the two share images. The reconstructed image is in CAPTCHA form to provide enhanced security. Project is in JAVA Platform. The objectives of the project will be to improve certain image parameters such as Robustness, in order to block unauthorized use, Security of the hidden message and to maintain the Perceptual Quality of the image.

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Key Words:

Steganography, Cryptography, Visual Cryptography, hidden information, image processing, random grid.