A secure scheme to share secret color images

被引:14
作者
Alvarez, G
Encinas, AH
Encinas, LH
del Rey, AM
机构
[1] CSIC, Dept Informat Proc & Coding, Inst Fis Aplicada, Madrid 28006, Spain
[2] Univ Salamanca, Dept Appl Math, ETSII, Salamanca 37700, Spain
[3] Univ Salamanca, Dept Appl Math, EPS, Avila 05003, Spain
关键词
cellular automata; cryptography; image processing; reversible model of computation; secret sharing;
D O I
10.1016/j.cpc.2005.07.002
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
The main goal of this work is to study how discrete dynamical systems can be used to design secret sharing schemes. Specifically, the proposed scheme permits to share secret color images, and it is based on bidimensional cellular automata. The main idea is to analyze how a simple reversible model of computation allows one to compute the shares and then using the reverse computation in order to recover the secret image. Moreover, the proposed scheme exhibits good statistical properties. (C) 2005 Elsevier B.V. All rights reserved.
引用
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页码:9 / 16
页数:8
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