Visual Cryptography and Random Grids

2018 ◽  
pp. 212-248
Author(s):  
Shyong Jian Shyu
Keyword(s):  
Visual Cryptography ◽  
Random Grids

Improved tagged visual cryptography by random grids

2014 ◽  
Vol 97 ◽  
pp. 64-82 ◽  
Author(s):  
Xiaotian Wu ◽  
Wei Sun
Keyword(s):  
Visual Cryptography ◽  
Random Grids

Cheating Prevention Method in Visual Cryptography by Using Random Grids

2013 ◽  
Vol 416-417 ◽  
pp. 1423-1428
Author(s):  
Hong Wei Lin ◽  
Xue Song Yang ◽  
Shu Wen Wang
Keyword(s):  
Secret Sharing ◽  
Visual Cryptography ◽  
Visual Secret Sharing ◽  
Pixel Expansion ◽  
Random Grids ◽  
Secret Image ◽  
Prevention Method

The traditional cheating prevention is usually based on visual cryptography (VC), in which the constructed image is bigger than the secret image because of the pixel expansion. In this paper, we studied the cheating problems in visual secret sharing (VSS) by random grids (RG) which can prevent the cheating activities with no pixel expansion. We considered the attacks of collusive cheaters who may deviate from the scheme in any way. We presented the cheating method and applied it on attacking existent n-out-of-n VSS scheme based on RG. Then we proposed one cheat-preventing scheme that can prevent the cheating activity upon.

Incrementing visual cryptography using random grids

2010 ◽  
Vol 283 (21) ◽  
pp. 4242-4249 ◽  
Author(s):  
Ran-Zan Wang ◽  
Yung-Ching Lan ◽  
Yeuan-Kuen Lee ◽  
Shih-Yu Huang ◽  
Shyong-Jian Shyu ◽  
...  
Keyword(s):  
Visual Cryptography ◽  
Random Grids

Region splitting visual cryptography using random grids

2016 ◽  
Vol 19 (5-6) ◽  
pp. 1013-1023 ◽  
Author(s):  
Yogesh K. Meghrajani ◽  
Himanshu S. Mazumdar
Keyword(s):  
Visual Cryptography ◽  
Random Grids ◽  
Region Splitting

k out of k extended visual cryptography scheme by random grids

2014 ◽  
Vol 94 ◽  
pp. 90-101 ◽  
Author(s):  
Teng Guo ◽  
Feng Liu ◽  
ChuanKun Wu
Keyword(s):  
Visual Cryptography ◽  
Random Grids ◽  
Visual Cryptography Scheme

Generalized random grids-based threshold visual cryptography with meaningful shares

2015 ◽  
Vol 109 ◽  
pp. 317-333 ◽  
Author(s):  
Xuehu Yan ◽  
Shen Wang ◽  
Xiamu Niu ◽  
Ching-Nung Yang
Keyword(s):  
Visual Cryptography ◽  
Random Grids ◽  
Meaningful Shares
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