Abstract A new superposition based multiple-image encryption using Fresnel-domain high dimension chaotic phase encoding is proposed. In this method, each color image of an authenticated user is decomposed into R, G, and B channels. The amplitude of each channel is independently normalized, phase encoded and then modulated by corresponding high-dimension chaotic random phase mask (HDCPM). The modulated R, G, and B channels of multiple color images are individually added and Fresnel transformed to produce corresponding encrypted channels. All the parameters (initial values and control parameters) of HDCPM are exploited as remarkably sensitive decryption keys of the proposed system. Moreover, the update, management, and transmission of the decryption keys are convenient. The individual decryption keys of R, G, and B channels significantly increase the resistance to various types of attacks. The proposed cryptosystem can be executed by using a hybrid optoelectronic system. Numerical simulation results demonstrate the viability and effectiveness of the proposed scheme.

中文翻译：

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使用菲涅耳域高维混沌相位编码的基于叠加的多图像加密

摘要 提出了一种新的基于菲涅耳域高维混沌相位编码的多图像叠加加密方法。在该方法中，经过身份验证的用户的每张彩色图像都被分解为 R、G 和 B 通道。每个通道的幅度独立归一化，相位编码，然后由相应的高维混沌随机相位掩模（HDCPM）调制。多幅彩色图像的调制R、G、B通道分别相加和菲涅耳变换，产生相应的加密通道。HDCPM 的所有参数（初始值和控制参数）都被用作所提出系统的非常敏感的解密密钥。而且，解密密钥的更新、管理和传输方便。R、G、和 B 通道显着增加了对各种类型攻击的抵抗力。所提出的密码系统可以通过使用混合光电系统来执行。数值模拟结果证明了所提出方案的可行性和有效性。