中国物理B ›› 2007, Vol. 16 ›› Issue (12): 3616-3623.doi: 10.1088/1009-1963/16/12/011

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Image encryption using high-dimension chaotic system

孙福艳1, 刘树堂1, 吕宗旺2   

  1. (1)College of Control Science and Engineering, Shandong University, Jinan 250061, China; (2)Corporate Engineering Department, Johnson Electric (ShenZhen) Co. Ltd, ShenZhen 518125, China
  • 出版日期:2007-12-20 发布日期:2007-12-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60472112) and the Foundation for the author of National Excellent Doctoral Dissertation of China (Grant No 200444).

Image encryption using high-dimension chaotic system

Sun Fu-Yan(孙福艳)a)†, Liu Shu-Tang(刘树堂)a), and Lü Zong-Wang(吕宗旺)b)   

  1. a College of Control Science and Engineering, Shandong University, Jinan 250061, China; b Corporate Engineering Department, Johnson Electric (ShenZhen) Co. Ltd, ShenZhen 518125, China
  • Online:2007-12-20 Published:2007-12-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60472112) and the Foundation for the author of National Excellent Doctoral Dissertation of China (Grant No 200444).

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摘要： In recent years, the chaos based cryptographic algorithms have suggested some new and efficient ways to develop secure image encryption techniques. This paper proposes a new approach for image encryption based on a high-dimensional chaotic map. The new scheme employs the Cat map to shuffle the positions, then to confuse the relationship between the cipher-image and the plain-image using the high-dimensional Lorenz chaotic map preprocessed. The results of experimental, statistical analysis and key space analysis show that the proposed image encryption scheme provides an efficient and secure way for real-time image encryption and transmission.

关键词: Arnold cat map, image encryption, chaotic encryption

Abstract: In recent years, the chaos based cryptographic algorithms have suggested some new and efficient ways to develop secure image encryption techniques. This paper proposes a new approach for image encryption based on a high-dimensional chaotic map. The new scheme employs the Cat map to shuffle the positions, then to confuse the relationship between the cipher-image and the plain-image using the high-dimensional Lorenz chaotic map preprocessed. The results of experimental, statistical analysis and key space analysis show that the proposed image encryption scheme provides an efficient and secure way for real-time image encryption and transmission.

Key words: Arnold cat map, image encryption, chaotic encryption

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a