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Adaptive Key Length Based Encryption Algorithm Using DNA Approach

机译:基于DNA方法的基于自适应密钥长度的加密算法

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In recent years various DNA based symmetric cryptographic algorithms have been suggested to develop secure image encryption techniques but secrecy of key and key space is often compromised due to small size of key. In this regard, this paper proposes a new method of adaptive key length based image encryption using DNA approach. The proposed algorithm uses 72-bit external key to generate the initial condition for chaotic sequence and for expansion of key to the desired length using DNA replication and complement rule. The proposed algorithm has a huge key space generated using key expansion method although the original key sequence is small. The original image is then encrypted using DNA addition and DNA complementary rule guided by the chaotic sequence. Experimental results and security analysis show that the proposed algorithm has achieved the satisfactory computing-security level.
机译:近年来,已经提出了各种基于DNA的对称密码算法来开发安全的图像加密技术,但是由于密钥的尺寸小,密钥和密钥空间的保密性常常受到损害。对此,本文提出了一种新的基于DNA的基于自适应密钥长度的图像加密方法。所提出的算法使用72位外部密钥生成初始条件,以用于混沌序列,并使用DNA复制和补码规则将密钥扩展到所需长度。尽管原始密钥序列很小,但该算法具有使用密钥扩展方法生成的巨大密钥空间。然后,使用混沌序列指导的DNA添加和DNA互补规则对原始图像进行加密。实验结果和安全性分析表明,该算法已达到令人满意的计算安全性水平。

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