Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (1): 10504-010504.doi: 10.1088/1674-1056/22/1/010504

• GENERAL • 上一篇    下一篇

A new image encryption algorithm based on fractional-order hyperchaotic Lorenz system

王震a, 黄霞b, 李玉霞b, 宋晓娜c   

  1. a College of Information Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
    b Key Laboratory of Robotics and Intelligent Technology, College of Information and Electrical Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
    c College of Electronic and Information Engineering, Henan University of Science and Technology, Luoyang 471003, China
  • 收稿日期:2012-04-22 修回日期:2012-08-03 出版日期:2012-12-01 发布日期:2012-12-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61004078 and 60971022), the Natural Science Foundation of Shandong Province, China (Grant Nos. ZR2009GQ009 and ZR2009GM005), the China Postdoctoral Science Foundation (Grant No. 20100481293), and the Special Funds for Postdoctoral Innovative Projects of Shandong Province, China (Grant No. 201003037).

A new image encryption algorithm based on fractional-order hyperchaotic Lorenz system

Wang Zhen (王震)a, Huang Xia (黄霞)b, Li Yu-Xia (李玉霞)b, Song Xiao-Na (宋晓娜)c   

  1. a College of Information Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
    b Key Laboratory of Robotics and Intelligent Technology, College of Information and Electrical Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
    c College of Electronic and Information Engineering, Henan University of Science and Technology, Luoyang 471003, China
  • Received:2012-04-22 Revised:2012-08-03 Online:2012-12-01 Published:2012-12-01
  • Contact: Huang Xia E-mail:huangxia.qd@gmail.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61004078 and 60971022), the Natural Science Foundation of Shandong Province, China (Grant Nos. ZR2009GQ009 and ZR2009GM005), the China Postdoctoral Science Foundation (Grant No. 20100481293), and the Special Funds for Postdoctoral Innovative Projects of Shandong Province, China (Grant No. 201003037).

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摘要： We propose a new image encryption algorithm on a basis of the fractional-order hyperchaotic Lorenz system. While in the process of generating a key stream, the system parameters and the derivative order are embedded in the proposed algorithm to enhance the security. Such an algorithm is detailed in terms of security analyses, including correlation analysis, information entropy analysis, run statistic analysis, mean-variance gray value analysis, and key sensitivity analysis. The experimental results demonstrate that the proposed image encryption scheme has the advantages of large key space and high security for practical image encryption.

关键词: image encryption, fractional order, hyperchaotic Lorenz system

Abstract: We propose a new image encryption algorithm on a basis of the fractional-order hyperchaotic Lorenz system. While in the process of generating a key stream, the system parameters and the derivative order are embedded in the proposed algorithm to enhance the security. Such an algorithm is detailed in terms of security analyses, including correlation analysis, information entropy analysis, run statistic analysis, mean-variance gray value analysis, and key sensitivity analysis. The experimental results demonstrate that the proposed image encryption scheme has the advantages of large key space and high security for practical image encryption.

Key words: image encryption, fractional order, hyperchaotic Lorenz system

中图分类号:  (Control of chaos, applications of chaos)

  • 05.45.Gg
05.45.Vx (Communication using chaos)