中国物理B ›› 2011, Vol. 20 ›› Issue (4): 40506-040506.doi: 10.1088/1674-1056/20/4/040506

• GENERAL • 上一篇    下一篇

Digital image encryption with chaotic map lattices

孙福艳, 吕宗旺   

  1. College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
  • 收稿日期:2010-09-05 修回日期:2010-11-29 出版日期:2011-04-15 发布日期:2011-04-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61001099 and 10971120) and the Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 200444).

Digital image encryption with chaotic map lattices

Sun Fu-Yan(孙福艳)† and Lü Zong-Wang(吕宗旺)   

  1. College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
  • Received:2010-09-05 Revised:2010-11-29 Online:2011-04-15 Published:2011-04-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61001099 and 10971120) and the Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 200444).

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摘要： This paper proposes a secure approach for encryption and decryption of digital images with chaotic map lattices. In the proposed encryption process, eight different types of operations are used to encrypt the pixels of an image and one of them will be used for particular pixels decided by the outcome of the chaotic map lattices. To make the cipher more robust against any attacks, the secret key is modified after encrypting each block of sixteen pixels of the image. The experimental results and security analysis show that the proposed image encryption scheme achieves high security and efficiency.

Abstract: This paper proposes a secure approach for encryption and decryption of digital images with chaotic map lattices. In the proposed encryption process, eight different types of operations are used to encrypt the pixels of an image and one of them will be used for particular pixels decided by the outcome of the chaotic map lattices. To make the cipher more robust against any attacks, the secret key is modified after encrypting each block of sixteen pixels of the image. The experimental results and security analysis show that the proposed image encryption scheme achieves high security and efficiency.

Key words: image encryption, image decryption, chaotic map lattice, cryptography, spatiotemporal chaotic system

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a
05.45.Gg (Control of chaos, applications of chaos)