DNA coding and central dogma based image encryption using vigenere cipher and chaos map

Fifth International Conference on Intelligent Control and Information Processing Pub Date : 2014-08-01 DOI:10.1109/ICICIP.2014.7010318

Linlin Zhang, Tiegang Gao, Rui Yang

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引用次数: 6

Abstract

In this paper, a new image encryption algorithm which base on DNA coding and genetic central dogma, combined with 3-dimensional Vigenere cipher and chaos mapping is proposed. In the proposed scheme, every pixel in original image is represented by four nucleotide bases by carrying out DNA coding. An amino acid matrix is obtain by implementing transcript and translation according to central dogma after randomly eliminating a base from each pixel; substitute the amino acid matrix by using 3-dimensional Vigenere cipher and a new codon matrix is gotten; a semi-finished encrypted image appears after decoding the nucleotide base matrix which is composed by the new codon matrix and the eliminated bases mentioned above; finally the encrypted image is obtained by disturbing image pixels with Logistic chaotic sequence. The proposed algorithm has a large secret key space and strong secret key sensitivity, meanwhile it can effectively resist exhaustive attack and statistical attack. The simulation results show the perfect effect compared with some existing algorithms.

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DNA编码和基于中心法则的图像加密

提出了一种基于DNA编码和遗传中心法则，结合三维Vigenere密码和混沌映射的图像加密算法。在该方案中，通过对原始图像进行DNA编码，每个像素由4个核苷酸碱基表示。从每个像素随机去除一个碱基，按照中心法则进行转录和翻译，得到氨基酸矩阵;用三维Vigenere密码代替氨基酸矩阵，得到新的密码子矩阵;解码由新密码子矩阵和上述消除的碱基组成的核苷酸碱基矩阵后，得到半成品加密图像;最后用Logistic混沌序列对图像像素进行扰动得到加密图像。该算法具有较大的密钥空间和较强的密钥敏感性，同时能够有效地抵抗穷举攻击和统计攻击。仿真结果表明，与现有算法相比，该算法具有较好的效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fifth International Conference on Intelligent Control and Information Processing

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