Title
Random-Grid Based Region Incrementing Visual Secret Sharing
Abstract
The concept of region incrementing in visual cryptography was introduced to encrypt an image into multiple secrecy levels. But, it suffers from the pixel expansion increasing exponentially as the number of participants grows. In this paper, we propose a region incrementing visual secret sharing RIVSS scheme based on random grids. The proposed scheme is a general k, n-RIVSS scheme, in which any t k ≤ t ≤ n shares can be used to reconstruct the secret regions up to t-k + 1 levels. However, no information about the input image can be revealed by any k-1 or fewer shares. With a nice property of region incrementing, the proposed scheme benefits by sharing an image without any pixel expansion and codebook requirement. We give formal proofs and experimental results to confirm both correctness and feasibility of our scheme.
Year
DOI
Venue
2015
10.3233/FI-2015-1185
Fundam. Inform.
Keywords
Field
DocType
visual secret sharing,visual cryptography,region incrementing,random grids
Discrete mathematics,Secret sharing,Secrecy,Algorithm,Encryption,Theoretical computer science,Verifiable secret sharing,Pixel,Homomorphic secret sharing,Visual cryptography,Mathematics,Codebook
Journal
Volume
Issue
ISSN
137
3
0169-2968
Citations 
PageRank 
References 
0
0.34
15
Authors
2
Name
Order
Citations
PageRank
Sachin Kumar1101.30
Rajendra Kumar Sharma2359.62