Compatible Ideal Contrast Visual Cryptography Schemes with Reversing

2005 ◽  
pp. 300-313 ◽  
Author(s):  
Chi-Ming Hu ◽  
Wen-Guey Tzeng
Keyword(s):  
Visual Cryptography

Security Concern and Countermeasures for Cheating in Visual Cryptography

2018 ◽  
Vol 6 (8) ◽  
pp. 277
Author(s):  
Ekta Y
Keyword(s):  
Communication System ◽  
Visual Cryptography ◽  
Detection Methods ◽  
Information Communication ◽  
New Approach ◽  
The World ◽  
Visual Cryptography Scheme ◽  
Prevention Methods ◽  
Security Concern

As IT sector is ruling the world now,confidentiality and security of information has become the most important inseparable aspect in information communication system. Keeping in view the same, a new approach called Visual Cryptography (VC) has been suggested by many researchers but there are some limitations with this scheme and cheating is one of the main problem among them. This paper intends to show the basis of cheating in VC in terms of cheating process, its detection methods and its prevention methods suggested by various researchers along with their merits and demerits. Finally, a good Cheating Immune Visual Cryptography Scheme (CIVCS) has been discussed which states the properties to be adopted by every Visual Cryptography scheme to make it immune to cheating attacks.

Anti Phishing Based On Visual Cryptography And 4D Hyperchaotic System

2018 ◽  
pp. 1
Author(s):  
Hala Bahjet Abdul Wahab ◽  
Thikra M. Abed
Keyword(s):  
Visual Cryptography ◽  
Hyperchaotic System

On the Generality of (k, n) XOR-based Visual Cryptography Scheme

2014 ◽  
Vol 35 (10) ◽  
pp. 2294-2300
Author(s):  
Gang Shen ◽  
Zheng-xin Fu ◽  
Bin Yu
Keyword(s):  
Visual Cryptography ◽  
Visual Cryptography Scheme

Copyright protection scheme for color images using extended visual cryptography

2021 ◽  
Vol 91 ◽  
pp. 106931
Author(s):  
Sonal Kukreja ◽  
Geeta Kasana ◽  
Singara Singh Kasana
Keyword(s):  
Copyright Protection ◽  
Visual Cryptography ◽  
Color Images ◽  
Protection Scheme

scholarly journals Flip Extended Visual Cryptography for Gray-Scale and Color Cover Images

Symmetry ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 65
Author(s):  
Lu Wang ◽  
Bin Yan ◽  
Hong-Mei Yang ◽  
Jeng-Shyang Pan
Keyword(s):  
Privacy Protection ◽  
Visual Cryptography ◽  
Color Images ◽  
Cover Image ◽  
Error Diffusion ◽  
Gray Scale ◽  
Secret Image ◽  
Transaction Security

Visual cryptography (VC) has found numerous applications in privacy protection, online transaction security, and voting security, etc. To counteract potential cheating attacks, Lin et al. proposed flip visual cryptography in 2010, where a second secret image can be revealed by stacking one share with a flipped version of another share. The second secret image can be designed as an additional verification mechanism. However, Lin’s scheme produces meaningless shares and is only applicable to binary secret images. It is interesting to explore whether it is possible to extend the flip VC to having cover images (i.e., extended VC) and these cover images are color images. This problem is challenging since too many restricting conditions need to be met. In this paper, we designed a flip VC for gray-scale and color cover images based on constraint error diffusion. We show that it is possible to meet all the constraints simultaneously. Compared with existing schemes, our scheme enjoys the following features: Color cover images, no computation needed for decoding, and no interference from cover image on the recovered secret image.

Extended XOR-based visual cryptography schemes by integer linear program

2021 ◽  
Vol 186 ◽  
pp. 108122
Author(s):  
Xiaotian Wu ◽  
Peng Yao ◽  
Na An
Keyword(s):  
Visual Cryptography ◽  
Linear Program ◽  
Integer Linear Program
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