Two-image encryption by random grids

Chang, Joy Jo-Yi; Li, Ming-Jheng; Wang, Yichun; Juan, Justie Su-Tzu

doi:10.1109/iscit.2010.5664885

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…Every share generated using our VMSS scheme did not reveal any secret information about the input images. Among the schemes discussed in this paper, those proposed by Chang et al [7,9] are equipped with adjustable distortion but cannot encrypt more secret images compared with our scheme. The approach proposed in [8] can embed four secret images simultaneously, but it cannot increase the number of input images.…”

Section: Discussionmentioning

confidence: 97%

“…Because these algorithms are well established, we only demonstrate the following Algorithm 2 adopted in our main algorithm: Generate an w × h random grid R 1 , where the light transmittance is 1/2 For (int i = 0; i < w; i++) Next, to improve efficiency, VMSS schemes are commonly used. In 2010, Chang et al [7] provided an approach that can embed two secret images into two shares and reduce the distortion to 1/2p, where p is a positive factor of w (can be determined by the user). Distortion is defined as the ratio of the number of pixels that are not considered during encryption to the number of all pixels in secret images.…”

Section: Related Workmentioning

confidence: 99%

“…Several visual multi-secret sharing (VMSS) schemes have been discussed in the past few years. Studies [6][7][8][9][10][11][12] have demonstrated methods for encrypting several images simultaneously. In 2008, Chen et al [6] proposed a VMSS scheme that involves using an RG to encrypt two secret images into two shares.…”

Section: Introductionmentioning

confidence: 99%

“…In 2008, Chen et al [6] proposed a VMSS scheme that involves using an RG to encrypt two secret images into two shares. In 2010, Chang et al [7] proposed a method that entails using shifting RGs to embed two secret images; this method can reduce the distortion to 1/2p. An improved VMSS scheme proposed by Chen et al [8] uses appropriate angles (0 • , 90 • , 180 • , and 270 • ) to embed four secret images into two shares.…”

Section: Introductionmentioning

confidence: 99%

“…The aforementioned studies [6][7][8][9][10][11][12], have their own unique features, and we can observe that none of them can satisfactorily deal with the concerns of encoding of more than two secret images into two shares simultaneously while possessing adjustable distortion. In this paper, we provide a general shifting approach that can embed N (≥ 2) secret images simultaneously with adjustable distortion.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A New Visual Multi-Secrets Sharing Scheme by Random Grids

2018

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In (2, 2)-visual secret sharing (VSS) schemes, a common type of (k, n)-threshold VSS schemes, secret information can be decoded directly through only two shares by using a human vision system. Several studies have analyzed methods of simplifying the decoding process and refining encoding to pass more secret images through two identical shares. However, limited secret images are retrieved, and the quality of the recovered images is low. This paper proposes an advanced (2, 2)-VSS scheme that can embed N secret images into two rectangular shares. Compared with other related VSS schemes, more secret images can be encrypted and the distortion is adjustable in the proposed scheme, yielding more flexibility in theory and practice.

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Section: Discussionmentioning

confidence: 97%

Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A New Visual Multi-Secrets Sharing Scheme by Random Grids

2018

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Privacy and Security Issues and Solutions for Mixed Reality Applications

2023

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Enhancing Security of Banking Locker System Using Secret Sharing Scheme Based on Random Grids

Tajane

Patil

Pitale³

et al. 2015

Emerging Research in Computing, Information, Communication and Applications

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Now a day's security plays key role in every manner. As every system is becoming automated security is must. In today's worldwide computer network environment exact and secure data transmission is very much essential. In this paper, a new approach is proposed to improve the security of banking locker system. This system will enhance the security of automated banking locker system using visual cryptography. Visual Cryptography (VC) is a secret sharing scheme where a secret image is encrypted into the number of shares which independently unable to disclose information about the original secret image. The proposed system uses random grids based VC. The advantage of this scheme is no pixel expansion in reconstructed image and no need of a codebook. The proposed scheme enhances the security of banking locker system by distributing the secret between customer and bank employee and reduces the space complexity of database.

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Two-image encryption by random grids

Cited by 9 publications

References 9 publications

A New Visual Multi-Secrets Sharing Scheme by Random Grids

A New Visual Multi-Secrets Sharing Scheme by Random Grids

Privacy and Security Issues and Solutions for Mixed Reality Applications

Enhancing Security of Banking Locker System Using Secret Sharing Scheme Based on Random Grids

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