Contrast-improved visual secret sharing based on random grid for general access structure

2017 ◽  
Vol 71 ◽  
pp. 36-45 ◽  
Author(s):  
Xuehu Yan ◽  
Yuliang Lu
Keyword(s):  
Secret Sharing ◽  
Access Structure ◽  
Visual Secret Sharing ◽  
General Access Structure ◽  
Random Grid

Image Secret Sharing Construction for General Access Structure with Meaningful Share

2018 ◽  
Vol 10 (3) ◽  
pp. 66-77 ◽  
Author(s):  
Xuehu Yan ◽  
Yuliang Lu ◽  
Lintao Liu ◽  
Duohe Ma
Keyword(s):  
Secret Sharing ◽  
Cloud Storage ◽  
Access Structure ◽  
Visual Secret Sharing ◽  
Secret Image ◽  
General Access Structure ◽  
Image Secret Sharing ◽  
Random Grid ◽  
Meaningful Share

This article describes how the (k, n) threshold image secret sharing technology can recover the secret image even n − k shares are lost, or n−k servers do not work, which is useful for cloud storage, etc. Image secret sharing for general access structure (GAS) is more general than (k, n) threshold. Image secret sharing with a meaningful share will decrease encryption suspicion so that the security can be enhanced. However, traditional studies have no image secret sharing construction approach for GAS with a meaningful share. In the article, they first exploit an image secret sharing construction approach for GAS with meaningful share. Following their construction approach, the authors develop a random grid (RG)-based visual secret sharing (VSS) algorithm for GAS with meaningful share as well as polynomial-based image secret sharing for GAS with meaningful share. The experiments with this concept exhibit the effectiveness of the algorithms and further their construction approach.

scholarly journals A Common General Access Structure Construction Approach in Secret Image Sharing

2020 ◽  
Vol 12 (3) ◽  
pp. 96-110
Author(s):  
Xuehu Yan ◽  
Yuliang Lu ◽  
Lintao Liu
Keyword(s):  
Secret Sharing ◽  
Access Structure ◽  
Secret Image Sharing ◽  
Visual Secret Sharing ◽  
Pixel Expansion ◽  
Linear Congruence ◽  
Secret Image ◽  
Image Sharing ◽  
General Access Structure ◽  
Special Case

(k, n) threshold is a special case of the general access structure (GAS) in secret image sharing (SIS), therefore GAS is more extensive than (k, n) threshold. Most of conventional SIS, including visual secret sharing (VSS), polynomial-based SIS, linear congruence (LC)-based SIS, etc., were proposed with only (k, k) threshold or (k, n) threshold other than GAS. This article introduces a common GAS construction approach in SIS with on pixel expansion from existing (k, k) threshold or (k, n) threshold SIS. The authors input classic SIS methods to test the efficiency and feasibility of the proposed common GAS construction approach. Experiments are presented to indicate the efficiency of the approach by illustrations and analysis.

Realizing secret sharing with general access structure

2016 ◽  
Vol 367-368 ◽  
pp. 209-220 ◽  
Author(s):  
Lein Harn ◽  
Chingfang Hsu ◽  
Mingwu Zhang ◽  
Tingting He ◽  
Maoyuan Zhang
Keyword(s):  
Secret Sharing ◽  
Access Structure ◽  
General Access Structure

Random-Grid Based Region Incrementing Visual Secret Sharing

2015 ◽  
Vol 137 (3) ◽  
pp. 369-386
Author(s):  
Sachin Kumar ◽  
Rajendra Kumar Sharma
Keyword(s):  
Secret Sharing ◽  
Visual Secret Sharing ◽  
Random Grid ◽  
Grid Based
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