Improved schemes for visual secret sharing based on random grids

Hu, Hao; Shen, Gang; Liu, Yuling; Fu, Zhengxin; Yu, Bin

doi:10.1007/s11042-018-6738-2

Cited by 13 publications

(5 citation statements)

References 31 publications

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“…They covered a secret message within the cover image to enhance the security. In [20], authors stated a VSS scheme based on the random grid. They proposed a general access structure (GAS) and an extended random grid-based VSS with an improved access structure.…”

Section: Related Workmentioning

confidence: 99%

A novel fingerprint template protection and fingerprint authentication scheme using visual secret sharing and super-resolution

Muhammed

Mhala

Pais

2020

Multimed Tools Appl

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Fingerprint is the most recommended and extensively practicing biometric trait for personal authentication. Most of the fingerprint authentication systems trust minutiae as the characteristic for authentication. These characteristics are preserved as fingerprint templates in the database. However, it is observed that the databases are not secure and can be negotiated. Recent studies reveal that, if a person's minutiae points are dripped, fingerprint can be restored from these points. Similarly, if the fingerprint records are lost, it is a permanent damage. There is no mechanism to replace the fingerprint as it is part of the human body. Hence there is a necessity to secure the fingerprint template in the database. In this paper, we introduce a novel fingerprint template protection and fingerprint authentication scheme using visual secret sharing and super-resolution. During enrollment, a secret fingerprint image is encrypted into n shares. Each share is stored in a distinct database. During authentication, the shares are collected from various databases. The original secret fingerprint image is restored using a multiple image super-resolution procedure. The experimental results show that the reconstructed fingerprints are similar to the original fingerprints. The proposed method is robust, secure, and efficient in terms of fingerprint template protection and authentication.

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Section: Related Workmentioning

confidence: 99%

A novel fingerprint template protection and fingerprint authentication scheme using visual secret sharing and super-resolution

Muhammed

Mhala

Pais

2020

Multimed Tools Appl

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“…And because the private QR code with size of m × n is taken as the second layer of information, so equation (9) can turns into Equation (10).…”

Section: Secret Payloadmentioning

confidence: 99%

“…Lin [8] proposed a (n, n) secret sharing scheme where n bit streams were obtained by the random number generation algorithm and hash function and embedded into the carrier image by wet paper code to form n two-level QR codes. Also some scholars shared the secret into several parts based on visual cryptography [9][10][11] and embedded the subsecrets into QR code to generate the twolevel QR code, while there was distortion in the recovery results and the payload was really poor.…”

Section: Introductionmentioning

confidence: 99%

A Novel Three-Layer QR Code Based on Secret Sharing Scheme and Liner Code

Liu

2019

Security and Communication Networks

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Quick Response (QR) code, a machine-readable symbol, is widely employed in all walks of life due to its large information capacity, strong error correction ability, and fast reading speed. However, anyone with a standard decoder could obtain stored information. In this paper, utilizing the characteristics of the Hamming code, wet paper code, and the recognition mechanism of the QR code, we introduce a high-capacity QR code with three-layer information to protect the sensitive information. In the proposed scheme, we utilize the XOR-based secret-sharing algorithm to embed the second-layer information on the column vector of the constructed random matrix block. Then, without affecting the embedding result of the second layer information, the matrix block elements are reused again, and the Hamming code is constructed with the column vector. Based on the error correction mechanism of the Hamming code, the third layer of information is embedded on the column vector and encoded by wet paper coding to realize the blind extraction. Finally, based on the recognition mechanism of the QR code, the random matrix block containing the secret information is fused with the carrier QR code, and the public information of the carrier QR code is used as the first-layer information. Compared with other schemes, the proposed scheme has the advantages of high information payload, low computational complexity, and strong robustness.

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“…Pixel expansion problems of VCSs also should be considered during the encryption processes. 13 Each pixel of a secret image will be split into m black and white subpixels that are used to generate the shared images. This process may suffer pixel expansion and contrast distortion problems comparing with the reconstructed image and the original image.…”

Section: Introductionmentioning

confidence: 99%

An efficient XOR-based visual cryptography scheme with lossless reconfigurable algorithms

Wang

Jiang

Qian

et al. 2022

International Journal of Distributed Sensor Networks

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This article proposes an efficient XOR-based visual cryptography scheme with lossless reconfigurable algorithms, which includes an encryption and a decryption schemes for gray-scale and color secret images. The encryption scheme aims to encrypt secret images by mapping them to several shared images that do not suffer any pixel expansion problem and do not reveal any information of the secret images by considering a random column selection algorithm based on the 0-mapping and 1-mapping matrices, where the two matrices are dynamically generated in the encryption scheme. Moreover, the proposed decryption scheme can reconstruct the secret images with only a series of XOR operations. The reconstructed images do not suffer any contrast distortion and pixel expansion problems comparing with their original secret images. Finally, the proposed two schemes are illustrated with the practical examples.

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Improved schemes for visual secret sharing based on random grids

Cited by 13 publications

References 31 publications

A novel fingerprint template protection and fingerprint authentication scheme using visual secret sharing and super-resolution

A novel fingerprint template protection and fingerprint authentication scheme using visual secret sharing and super-resolution

A Novel Three-Layer QR Code Based on Secret Sharing Scheme and Liner Code

An efficient XOR-based visual cryptography scheme with lossless reconfigurable algorithms

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