Random-Grid-Based Visual Cryptography Schemes

Hou, Young‐Chang; Wei, Shih-Chieh; Lin, Chia-Yin

doi:10.1109/tcsvt.2013.2280097

Cited by 43 publications

(3 citation statements)

References 19 publications

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“…Authentication ensures that only an authenticated group of individuals can reconstruct the secret message as the key shares are available to them [19]. Modifying key share data or deleting the share do not reveal the secret.…”

Section: E Secret E Subkey E Sharementioning

confidence: 99%

A self-verifiable computational visual cryptographic protocol for secure two-dimensional image communication

Mary¹,

Kumar²

2019

Meas. Sci. Technol.

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A visual secret sharing (VSS) scheme is an image encryption technique for the secure transmission of multimedia visual information. A VSS divides the secret into a number of image shares. The shares are distributed to the participants either as meaningless or meaningful shares. VSS has been applied to support secure transmission of military, medical and financial documents and so on. No individual share discloses the secret message. One of the drawbacks of VSS is that if an intruder happens to modify or change the share, the reconstructed secret image cannot be verified for its integrity. Other factors such as security and quality are also considered to be a significant concern. Traditional VSS schemes verify the integrity of the reconstructed image with additional shares, or with a trusted third party. The security of the image integrity also needs to be considered. This article proposes a new self-verifiable computational visual cryptographic protocol (SCVCP) that facilitates a computational model to overcome issues of integrity verification. The SCVCP maintains the secure transmission of meaningful shares without compromising the quality of the reconstructed image. The experimental results show that the SCVCP is secure and robust against quality issues without complex computations. The SCVCP verifies the authenticity of the reconstructed two-dimensional image without any extra shares. The verification ensures the integrity of the secret message at the revealing stage while reconstructing the secret image.

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Section: E Secret E Subkey E Sharementioning

confidence: 99%

A self-verifiable computational visual cryptographic protocol for secure two-dimensional image communication

Mary¹,

Kumar²

2019

Meas. Sci. Technol.

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“…Visual Secret Sharing (VSS) [15][16][17][18][19][20][21][22][23][24][25] is a kind of technique that hides secret first and partitions it to multi-parties for sharing purpose. This technique can be dated back to 1979, Shamir [15] and Blakley [16] provide two different ( , tn ) secret sharing mechanisms, respectively.…”

Section: Vss Techniquementioning

confidence: 99%

Enhancing the Security of Credit Card Transaction based on Visual DSC

2015

KSII TIIS

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People have transferred their business model from traditional commerce to e-commerce in recent decades. Both shopping and payment can be completed through the Internet and bring convenience to consumers and business opportunities to industry. These trade techniques are mostly set up based on the Secure Sockets Layer (SSL). SSL provides the security for transaction information and is easy to set up, which makes it is widely accepted by individuals. Although attackers cannot obtain the real content even when the transferred information is intercepted, still there is risk for online trade. For example, it is impossible to prevent credit card information from being stolen by virtual merchant. Therefore, we propose a new mechanism to solve such security problem. We make use of the disposable dynamic security code (DSC) to replace traditional card security code. So even attackers get DSC for that round of transaction, they cannot use it for the next time. Besides, we apply visual secret sharing techniques to transfer the DSC, so that interceptors cannot retrieve the real DSC even for one round of trade. This way, we can improve security of credit card transaction and reliability of online business. The experiments results validate the applicability and efficiency of the proposed mechanism.

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“…Cimato et al [14] introduced probabilistic VCS that can achieve better visual quality at the price of larger size expansion. Researchers proposed random grid based visual secret sharing schemes [15], [16]. These schemes can achieve non-expansible shadows.…”

Section: Introductionmentioning

confidence: 99%

A Construction Method of (2, 3) Visual Cryptography Scheme

Yin

2020

IEEE Access

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Visual cryptography scheme (VCS) shares a binary secret image into multiple shadows, stacking qualified set of shadows will decode the secret image without computer resources. In this paper, we propose a (2, 3)-VCS, which can share one or two secret images into 3 shadows, stacking any two shadows will reveal the secret image. The shadow size is 3/2 times of the secret image. The contrasts of the revealed image are 1/3 and 1/2 when we share one and two secret images, respectively. We can also reveal the secret image by XOR decoding operation, and the visual quality of the revealed image can be further improved. By XOR decoding operation, the contrasts of the revealed image will be 2/3 and 1 when we share one or two secret images, respectively. In the case of sharing two secret images, the revealed two secret images have no distortion. Theoretic analysis and experimental results demonstrate the feasibility and advantages of the proposed (2, 3)-VCS.

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Random-Grid-Based Visual Cryptography Schemes

Cited by 43 publications

References 19 publications

A self-verifiable computational visual cryptographic protocol for secure two-dimensional image communication

A self-verifiable computational visual cryptographic protocol for secure two-dimensional image communication

Enhancing the Security of Credit Card Transaction based on Visual DSC

A Construction Method of (2, 3) Visual Cryptography Scheme

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