A robust and lossless DNA encryption scheme for color images
A robust and lossless DNA encryption scheme for color images
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DOI：
10.1007/s11042-017-4885-5
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发表时间：
2017-06
影响因子：
3.6
通讯作者：
Xiangjun Wu;J. Kurths;Haibin Kan
中科院分区：
文献类型：
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作者：
Xiangjun Wu;J. Kurths;Haibin Kan
提出了一种基于DNA序列运算和单向耦合映射格（OCML）的彩色图像鲁棒无损加密算法。首先将图像分解为三个灰度分量，然后根据DNA编码规则将其随机转换为三个DNA矩阵。然后对DNA矩阵进行两次异或运算。然后，根据DNA解码规则，将混洗后的DNA矩阵变换为三幅灰度图像。最后，通过密钥流对图像像素值进行扩散处理，得到加密图像。OCML生成的密钥流与明文图像相关。实验结果和安全性分析表明，该算法具有良好的加密效果，能够抵御各种典型的攻击。此外，它对一些常见的图像处理操作，如噪声添加，剪切，JPEG压缩等具有鲁棒性。
In this paper, a new robust and lossless color image encryption algorithm is presented based on DNA sequence operation and one-way coupled-map lattices (OCML). The plain-image is firstly decomposed into three gray-level components and we randomly convert them into three DNA matrices by the DNA encoding rules. Then the XOR operation is performed on the DNA matrices for two times. Next, the shuffled DNA matrices are transformed into three gray images according to the DNA decoding rules. Finally, a diffusion process is further applied to change the image pixel’s values by a key stream, and the cipher-image is attained. The key stream generated by OCML is related to the plain-image. Experimental results and security analysis demonstrate that the proposed algorithm has a good encryption effect and can withstand various typical attacks. Furthermore, it is robust against some common image processing operations such as noise adding, cropping, JPEG compression etc.