基于计算鬼成像和Toeplitz矩阵的公钥图像加密技术  

Public Key Image Encryption Based on Toeplitz Matrix and Computational Ghost Imaging

作　　者：蒋新竹 JIANG Xinzhu(North China University of Resources and Electric Power,Zhengzhou Henan 450000,China)

机构地区：[1]华北水利水电大学信息工程学院,河南郑州450000

出　　处：《信息与电脑》2022年第1期84-89,共6页Information & Computer

摘　　要：计算鬼成像技术已广泛应用于成像领域,其系统的加密是光学加密的重要内容之一。针对现有计算鬼成像加密技术普遍密钥量过大、加密时间较长等问题提出了一种基于计算鬼成像和Toeplitz矩阵的公钥图像加密技术,该技术加密、解密密钥不同,无需传递密钥,属于公钥加密方式,安全性更高。此外,其使用正交矩阵作为测量矩阵,提高了成像质量,同时使用随机生成的Toeplitz矩阵缩小了密钥量,提升了加密效率。Computational ghost imaging technology has been widely used in the imaging field, and its system encryption is one of the important contents of optical encryption. Aiming at the problems of the existing computational ghost imaging encryption technology, such as large key quantity and long encryption time, a public key image encryption technology based on computational ghost imaging and Toeplitz matrix is proposed. This technology has different encryption and decryption keys and does not need to be transmitted. The key is a public key encryption method with higher security. In addition, the use of an orthogonal matrix as the measurement matrix improves the imaging quality, the use of a randomly generated Toeplitz matrix reduces the amount of keys and improves the encryption efficiency.

关 键 词：计算鬼成像 光学加密 HADAMARD矩阵 TOEPLITZ矩阵 公钥加密 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]