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Recursive Information Hiding in Threshold Visual Cryptography Scheme

By Lekhika Chettri and Eep Gurung


Abstract-- This paper attempts to explain hiding of secret information recursively in threshold visual cryptography scheme for black and white image. The threshold visual cryptography scheme used is based on three per one pixel expansion for (2, 3) visual cryptography scheme. In this paper we propose a new way to hide n number of secrets recursively in the original image, to explain this we hide four secrets recursively irrespective of the size of the secret messages to be hidden. At each level a new secret is hidden into the previously generated share. Decoding of the recursively hidden shares can be done by first extracting the secret share image at each recursive level. There is no image size restriction and so there is no limitation to numbers of image that can be hided into the original image shares. Keywords-- Secret message, shares, extraction, threshold, hidden message, constructed image. I

Year: 2014
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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