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Article

A Maze Matrix-Based Secret Image Sharing Scheme with Cheater Detection

1
Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
2
Department of Electronic Engineering, National Quemoy University, Kinmen 89250, Taiwan
3
Department of Information Engineering and Computer Science, Feng Chia University, Taichung 40724, Taiwan
4
School of Computer Science and Technology, Hangzhou Dianzi University, Hangzhou 310018, China
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(13), 3802; https://doi.org/10.3390/s20133802
Received: 19 May 2020 / Revised: 29 June 2020 / Accepted: 6 July 2020 / Published: 7 July 2020
Secret image sharing is a technique for sharing a secret message in such a fashion that stego image shadows are generated and distributed to individual participants. Without the complete set of shadows shared among all participants, the secret could not be deciphered. This technique may serve as a crucial means for protecting private data in massive Internet of things applications. This can be realized by distributing the stego image shadows to different devices on the Internet so that only the ones who are authorized to access these devices can extract the secret message. In this paper, we proposed a secret image sharing scheme based on a novel maze matrix. A pair of image shadows were produced by hiding secret data into two distinct cover images under the guidance of the maze matrix. A two-layered cheat detection mechanism was devised based on the special characteristics of the proposed maze matrix. In addition to the conventional joint cheating detection, the proposed scheme was able to identify the tampered shadow presented by a cheater without the information from other shadows. Furthermore, in order to improve time efficiency, we derived a pair of Lagrange polynomials to compute the exact pixel values of the shadow images instead of resorting to time-consuming and computationally expensive conventional searching strategies. Experimental results demonstrated the effectiveness and efficiency of the proposed secret sharing scheme and cheat detection mechanism. View Full-Text
Keywords: secret image sharing; maze matrix; cheat detection; cheater identification secret image sharing; maze matrix; cheat detection; cheater identification
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MDPI and ACS Style

Chang, C.-C.; Horng, J.-H.; Shih, C.-S.; Chang, C.-C. A Maze Matrix-Based Secret Image Sharing Scheme with Cheater Detection. Sensors 2020, 20, 3802. https://doi.org/10.3390/s20133802

AMA Style

Chang C-C, Horng J-H, Shih C-S, Chang C-C. A Maze Matrix-Based Secret Image Sharing Scheme with Cheater Detection. Sensors. 2020; 20(13):3802. https://doi.org/10.3390/s20133802

Chicago/Turabian Style

Chang, Ching-Chun, Ji-Hwei Horng, Chia-Shou Shih, and Chin-Chen Chang. 2020. "A Maze Matrix-Based Secret Image Sharing Scheme with Cheater Detection" Sensors 20, no. 13: 3802. https://doi.org/10.3390/s20133802

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