A hybrid cryptosystem based on plaintext-related ghost imaging and elliptic curve public-key cryptographic algorithm (ECC) is proposed in this paper. Thereinto, the ECC algorithm is used to protect and distribute session keys and the optical encryption system with session keys is used to encrypt and decrypt images. Thousands of phase-only mask keys can be replaced by parameter keys in this method, which successfully reduces the pressure of key storage. With dynamic updating session keys, the attacks are effectively prevented and the security resilience is enhanced. In addition, the utilization of an ECC cryptosystem solves the inevitable problem of key management and dispatch in conventional ghost imaging encryption system. The feasibility, security and robustness of the method are further analyzed through computer simulations.

中文翻译：

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基于明文相关的计算重影成像加密和椭圆曲线算法的混合密码系统

提出了一种基于明文相关的幻影成像和椭圆曲线公钥密码算法（ECC）的混合密码系统。其中，ECC算法用于保护和分配会话密钥，并且具有会话密钥的光学加密系统用于加密和解密图像。这种方法可以用参数键替换成千上万的仅相位掩码键，从而成功减少了键存储的压力。通过动态更新会话密钥，可以有效地防止攻击并增强安全性。另外，ECC密码系统的使用解决了常规幻影成像加密系统中密钥管理和分发的不可避免的问题。通过计算机仿真进一步分析了该方法的可行性，安全性和鲁棒性。