液晶与显示2017，Vol.32Issue(6)：474-481,8.DOI:10.3788/YJYXS20173206.0474
基于遗传-超混沌的数字图像加密算法设计
Digital image encryption algorithm design based on Genetic-hyperchaos
摘要
Abstract
In view of the present chaotic image encryption algorithm based on scrambling-diffusion, it exists in the process of pixel position scrambling vulnerable to choose plaintext (ciphertext) attack, we put forward a image encryption algorithm based on genetic-super chaotic.This algorithm introduces the explicit feedback mechanism to the image scrambling process.Its scrambling effect is not only related to the initial sequence of chaos, but also closely related to the plaintext itself.Therefore, it implements the organic integration of image characteristics and encryption algorithms.In this paper, we add the explicit feedback mechanism in the process of diffusion encryption, which improves the sensitivity of the algorithm to plaintext, and it improves the anti-selection plaintext and ciphertext attack performance.So, it uses the feature information of the image to encrypt, it also has data-driven features.Finally, experimental simulation and theoretical analysis show that our proposed algorithm can not only effectively resist choose plaintext (ciphertext) attack and statistical attack resistance and information entropy attack, but also effectively improve the efficiency of image encryption.It is a relatively secure and effective way of image communication.关键词
超混沌/图像加密/遗传算法/图像置乱/图像扩散Key words
hyperchaos/image encryption/genetic algorithm/image scrambling/image diffusion分类
信息技术与安全科学引用本文复制引用
杨娜..基于遗传-超混沌的数字图像加密算法设计[J].液晶与显示,2017,32(6):474-481,8.基金项目
国家自然科学基金: (No.61272506)Supported by National Natural Science Foundation of China(No.61272506) （No.61272506）
