A novel optical video cryptosystem based on improved 3D arnold transform in gyrator domains
A novel optical video cryptosystem based on improved 3D arnold transform in gyrator domains
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DOI：
10.1016/j.optlastec.2023.109891
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通讯作者：
Gege Sun;W. Song;Miao Tian;C. Tanougast;Z. Liu;Hang Chen
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作者：
Gege Sun;W. Song;Miao Tian;C. Tanougast;Z. Liu;Hang Chen
本文提出了一种基于改进的旋转域三维Arnold模型的光学视频加密系统。为了方便起见，我们提出了一个四维图像模型的概念，视频数据。将卫星视频数据转换为四维图像模型后，针对三维Arnold映射对视频数据适用性不足的问题，设计了模块运动置乱算法。随后，使用TAEA算法将视频的单个帧内的数值扩展到帧之间的数值。最后，将光学变换与混沌模型相结合，解决了光学变换单一混沌结构简单、抗明文攻击能力弱的问题。利用Gyrator变换和三维Arnold映射中的参数作为附加密钥，实现了卫星视频数据的加密。最后，增加了数据签名和完整性验证功能，以解决卫星视频数据的高机密性。实验结果表明，该系统具有较高的安全性能，能有效抵抗强已知明文攻击、选择明文攻击、高斯噪声攻击，并能较好地抵抗遮挡攻击。
In this paper, we present an optical video encryption system based on an improved 3D Arnold model in Gyrator domains. For the sake of convenience, we present a concept of four-dimensional image model for video data. After converting satellite video data into a four-dimensional image model, a module movement scrambling algorithm is designed to address the problem of the inadequate applicability of the 3D Arnold mapping to video data. Subsequently, the TAEA algorithm is used to spread the numerical values within a single frame of the video to the numerical values between frames. Finally, optical transformations and chaos models are combined to address the problems of simple single chaos structure and weak resistance of optical transformations to plaintext attacks. The parameters in Gyrator transform and 3D Arnold mapping are sever as the extra keys and achieve encryption of satellite video data. Finally, data signature and integrity verification functions are added to address the high confidentiality of satellite video data. Experimental results show that the proposed system has high security performance and can effectively resist strong known-plaintext attacks, chosen-plaintext attacks, Gaussian noise attacks and perform well in occlusion attack.