基于廣義混沌同步系統(tǒng)的數(shù)字圖像非對稱安全通訊方案

1、 A Non-symmetric Digital Image Encryption Scheme Based on Generalized Chaos Synchronization System Zhang Xiaohong1.2 Min Lequan1 1 Department of Mathematics and Mechanics and Information School University of Science and Technology Beijing, Beijing 100083 2. School of Information Engineering Jiangxi

2、University of Science and Technology, Ganzhou, Jiangxi, PRC 341000 xiaohongzh lqmin Abstract Based on generalized chaos synchronization (GCS system and sinai mapping, a non-symmetric digital image encryption scheme is presented. The scheme transfers ordinary RGB digital images with 8 bit into digita

3、l image with 16 bit, and then makes it become un-recognizable disorder codes. Alomost all formatted digital images recognized by computers can be encrypted and decrypted in terms of the scheme. Another feature of the scheme is its data origin authentication function. Even a receiver cannot communica

4、te with sender of a ciphertext, the receiver can still confirm whether the received data are altered by intruders. The scheme can be applied in the Internet digital communications. The analysis of the key space, sensitivity of key parameters, and correlation of encrypted images imply that this scheme has good security. Keywords: Generalized Chaos Synchronization, Sinai Maps, image confuse, non-symmetric keys, network communication 作者簡介： 張小紅，女，1966 年生，北京科技大學(xué)在讀博士研究生，江西理工大學(xué)教授，主要研究方 向：混沌保密通信、圖像處理 通信地址：江西理工大學(xué)信息工程學(xué)院 郵編：341000 e-mail: xiaohongzh 電話：139* 閔樂泉，男，1951 年生，北京科技大學(xué)教授，博士生導(dǎo)師，主要研究方向：細(xì)胞神經(jīng)網(wǎng)絡(luò)、