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arXiv cs/0610172cs.CR
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扩展的可视密码方案的分析与推广

On the Analysis and Generalization of Extended Visual Cryptography Schemes

DaoShun Wang, Feng Yi, Xiaobo Li, Ping Luo, Yiqi Dai

摘要:

Ateniese等人[3]提出了一种扩展的视觉加密方案(EVCS),用于保护具有有意义(看似无辜)份额的二进制秘密图像。这通过将扩展矩阵连接到每个基矩阵来实现。扩展矩阵的最小尺寸从超图着色模型获得,并且该方案仅针对二值图像设计[3]。在本文中,我们给出了一个更简洁的推导这种矩阵扩展的彩色图像。此外,我们提出了一个(k,n)计划,以保护多个彩色图像与有意义的份额。该方案是Droste方案[2]中提出的多个二值图像的(n,n)插值的推广。

英文摘要:

An Extended Visual Cryptography Scheme (EVCS) was proposed by Ateniese et al. [3] to protect a binary secret image with meaningful (innocent-looking) shares. This is implemented by concatenating an extended matrix to each basis matrix. The minimum size of the extended matrix was obtained from a hypergraph coloring model and the scheme was designed for binary images only [3]. In this paper, we give a more concise derivation for this matrix extension for color images. Furthermore, we present a (k, n) scheme to protect multiple color images with meaningful shares. This scheme is an extension of the (n, n) VCS for multiple binary images proposed in Droste scheme [2].

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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