Universal Journal of Electrical and Electronic Engineering Vol. 3(6), pp. 165 - 172
DOI: 10.13189/ujeee.2015.030602
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A Secure and Verifiable Visual Cryptography for Color Images


AR. Guru Gokul 1,*, N. Kumaratharan 2
1 Department of Computer Science and Engineering, Sri Krishna College of Technology, India
2 Department of Information Technology, Sri Venkateswara College of Engineering, India

ABSTRACT

Confidentiality is the most important aspect of information security. Visual Cryptography (VC) is a decryption-less cryptographic technique where human eye is proficient in decrypting the secret information. VC is implemented for binary, gray scale and color images, Color image VC schemes are commonly implemented using Cyan-Magenta-Yellow-Black (CMYK) model that requires a computational device for revealing the secret image but lacks verifiability of the shares. The authenticity of the shares is not assured to the receiver, particularly in color image VC scheme. In case of any alteration, attack or loss in the transmitted data, it cannot be identified by the existing schemes. Unlike the existing models where a device is compulsory for decrypting back color images, the proposed model provides a means to encrypt the color images using Red-Green-Blue (RGB) model where each pixel is processed by its respective RGB components. It enables decryption at the receiver without the assistance of computer or aided devices. In this paper, the above mentioned issues are addressed by the scheme that verifies the integrity of the received shares at the receiver.

KEYWORDS
Visual Cryptography, RGB Model, Confidentiality, Shares, Color Codes

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] AR. Guru Gokul , N. Kumaratharan , "A Secure and Verifiable Visual Cryptography for Color Images," Universal Journal of Electrical and Electronic Engineering, Vol. 3, No. 6, pp. 165 - 172, 2015. DOI: 10.13189/ujeee.2015.030602.

(b). APA Format:
AR. Guru Gokul , N. Kumaratharan (2015). A Secure and Verifiable Visual Cryptography for Color Images. Universal Journal of Electrical and Electronic Engineering, 3(6), 165 - 172. DOI: 10.13189/ujeee.2015.030602.