密码学
可视密码
符号
像素
单调函数
基础(拓扑)
数学
图像(数学)
计算机科学
财产(哲学)
算法
离散数学
计算
理论计算机科学
人工智能
秘密分享
算术
数学分析
哲学
认识论
作者
Xiaotian Wu,Na An,Zishuo Xu
出处
期刊:IEEE Transactions on Circuits and Systems for Video Technology
[Institute of Electrical and Electronics Engineers]
日期:2023-01-01
卷期号:33 (1): 88-103
被引量:7
标识
DOI:10.1109/tcsvt.2022.3199047
摘要
Multiple-secret visual cryptography scheme (MVCS) and fully incrementing visual cryptography scheme (FIVCS) have the same functionality that different secrets are gradually revealed by stacking different numbers of shadows. In essence, MVCS and FIVCS are the same. However, both of the two schemes suffer from large pixel expansion and deteriorated reconstructed image quality. In addition, MVCS and FIVCS require intensive computations to create base matrices. In this research, we exploit the capacity of sharing multiple secrets in XOR-based VCS (XVCS). First of all, three efficient base matrix constructions are proposed for realizing the $(k, n)$ non-monotonic XVCS (NXVCS), where the secret image is only revealed by XOR-ing exact $k$ shadows. The $(k, n)$ -NXVCS is adopted to constitute the multiple-secret XVCS (MXVCS). Theoretical analysis on the proposed constructions is provided. Extensive experiments and comparisons are conducted to illustrate that the pixel expansion, the visual quality of recovered image and the efficiency of generating base matrices are significantly improved by the proposed MXVCS, while comparing to MVCS and FIVCS.
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