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arXiv:2309.13659 · IEEE Access

A Novel Quantum Visual Secret Sharing Scheme

Wenjie Liu, Yinsong Xu, Maojun Zhang, Junxiu Chen, Ching‐Nung Yang

Published Jan 1, 2019• 20 citations
arXivHTMLPDF

Abstract

Inspired by Naor et al.'s visual secret sharing (VSS) scheme, a novel n out of n quantum visual secret sharing (QVSS) scheme is proposed, which consists of two phases: sharing process and recovering process. In the first process, the color information of each pixel from the original secret image is encoded into an n-qubit superposition state by using the strategy of quantum expansion instead of classical pixel expansion, and then these n qubits are distributed as shares to n participants, respectively. During the recovering process, all participants cooperate to collect these n shares of each pixel together, then perform the corresponding measurement on them, and execute the n-qubit XOR operation to recover each pixel of the secret image. The proposed scheme has the advantage of single-pixel parallel processing that is not available in the existing analogous quantum schemes and perfectly solves the problem that in the classic VSS schemes the recovered image has the loss in resolution. Moreover, its experiment implementation with the IBM Q is conducted to demonstrate the practical feasibility.

DOI
10.1109/access.2019.2931073

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Quantum visual cryptography (QVC) improves the security of traditional schemes. However, current QVC schemes are mainly limited to encrypting black-and-white binary images. In this paper, a split-channel quantum color visual cryptography (QCVC) scheme based on multi-secret encryption is proposed. In the sharing phase, the color image is divided into three channels. After halftone processing, it is encoded as three secret images, and two shares are generated and distributed to two participants. In the recovery phase, the three-channel images are decoded after quantum OR operation. Finally, a merge is performed to recover the original color secret image. We validated the security and feasibility of the proposed scheme through experiments.
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Abstract A multiple multi-qubit quantum states sharing scheme is proposed, in which the dealer can share multiple multi-qubit quantum states among the participants through only one distribution and one recovery. The dealer encodes the secret quantum states into a special entangled state, and then distributes the particles of the entangled state to the participants. The participants perform the single-particle measurements on their particles, and can cooperate to recover the multiple multi-qubit quantum states. Compared to the existing schemes, our scheme is more efficient and more flexible in practice.