通信学报2018，Vol.39Issue(5)：1-10,10.DOI:10.11959/j.issn.1000-436x.2018072
基于多阶分数离散切比雪夫变换和产生序列的图像加密方法
Image encryption method based on multiple-order fractional discrete Tchebichef transform and generating sequence
摘要
Abstract
Fractional transform based image encryption methods have been widely studied in recent years. However, most of the existing fractional transform based image encryption methods are defined in the complex field. Thus, the en-crypted images contain both phase and amplitude information, which is not conducive to transmission and storage. Moreover, some encryption methods that meet the requirements of reality-preserving have problems of relatively single keys, lacking of sensitivity and so on. An image encryption method was proposed based on multiple-order fractional dis-crete Tchebichef transform and generating sequence. The proposed method used randomly generated row and column vectors and generating sequence generated by Chaotic sequences as keys to encrypt images, which not only satisfied property of reality-preserving transmission but also greatly expanded the key space. The experimental results further demonstrate that the proposed encryption method can resist a variety of attacks, and decrypted images are almost non-distored, which indicate excellent encryption effect, sufficient security and robustness of the method.关键词
分数阶/产生序列/图像加密/离散切比雪夫变换Key words
fractional order/generating sequence/image encryption/discrete Tchebichef transform分类
信息技术与安全科学引用本文复制引用
肖斌,史文明,李伟生,马建峰..基于多阶分数离散切比雪夫变换和产生序列的图像加密方法[J].通信学报,2018,39(5):1-10,10.基金项目
国家自然科学基金资助项目(No.61572092,No.U1401252) （No.61572092,No.U1401252）
国家重点研发计划基金资助项目(No.2016YFC1000307-3)The National Natural Science Foundation of China(No.61572092,No.U1401252),The National Science&Technology Major Project(No.2016YFC1000307-3) （No.2016YFC1000307-3）
