Novel image encryption algorithm based on improved logistic map

作     者：Li, Renzhi Liu, Qian Liu, Lingfeng 

作者机构：Nanchang Univ Sch Software Nanchang 330029 Jiangxi Peoples R China 

出 版 物：《IET IMAGE PROCESSING》 (IET影像处理)

年 卷 期：2019年第13卷第1期

页      面：125-134页

核心收录：

学科分类：0808[工学-电气工程] 1002[医学-临床医学] 08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：National Natural Science Foundation of China [61601215  61862042] 

主　　题：chaos cryptography image processing computational complexity chaotic mapping image encryption algorithm improved real-time variable logistic map cryptography randomly selected decimal time complexity 

摘      要：Chaotic mapping has been widely used in image encryption given the unpredictability, ergodicity, and sensitivity of parameters and initial values and the high correspondence with cryptography. The logistic map has the disadvantages of uneven distribution, low security, and small parameter space. In order to overcome these disadvantages, in this article, a new chaotic map based on a real-time variable logistic map with a randomly selected decimal is proposed. Furthermore, this chaotic mapping is applied to image encryption. Several simulation experiments show that the new encryption algorithm can obtain a safely encrypted image at a minimal time complexity.