一种基于小波变换的图像加密算法研究  

Research on an Image Encryption Algorithm Based on Wavelet Transform

作　　者：方彪 庞恒鑫 王炫清 燕善俊[1] FANG Biao;PANG Hengxin;WANG Xuanqing;YAN Shanjun(School of Mathematics and Statistics,Xuzhou University of Technology,Xuzhou 221111,China)

机构地区：[1]徐州工程学院数学与统计学院,江苏徐州221111

出　　处：《现代信息科技》2023年第5期102-105,共4页Modern Information Technology

摘　　要：随着计算机网络技术飞速发展,图像直观、形象等特点使其成为信息传播的重要媒介,但实际使用中仍旧存在着许多的安全隐患。文章采用小波变换和混沌图像加密结合的方法,对图像加密算法进行研究,并设计了一类兼顾压缩的图像加密算法。并通过对加密算法进行密钥灵敏度测试、时耗测试,可知该加密算法加密效果较好,安全性较强,加密速度有所提升。With the rapid development of computer network technology,the characteristics of image intuition and vividness make it become an important medium of information dissemination,but there are still many security risks in actual use.This paper uses the method of combining wavelet transform with chaotic image encryption to study the image encryption algorithm,and it designs a kind of image encryption algorithm that takes compression into account.Through the key sensitivity test and time consumption test of the encryption algorithm,it is known that the encryption algorithm has good encryption effect,strong security and improved encryption speed.

关 键 词：小波变换 ARNOLD置乱 混沌系统 图像加密 网络安全 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]