Design of high secure visual secret sharing scheme for gray scale images
Javvaji V.K. Ratnam, Patil Ramana Reddy, T. Sreenivasulu Reddy · 2017
In this paper, a (k, n)visual secret sharing scheme using Boolean and shift operations that provides high security to the secret image is designed. An algorithm is proposed to encode the original secret image to generate n share images using simple Boolean XOR and circular shift operations. The secret data cannot be revealed with any k − 1 or less number of share images. The security is provided to the original secret by encrypting this secret with a random image and distinct authentication id used for each share during generation of shares. The size of generated share images is same as that of original image and requires no pixel expansion. The proposed scheme eliminates security issues observed in the related techniques. Experimental results confirm the feasibility and security of the proposed technique.