吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (3): 801-806.doi: 10.13229/j.cnki.jdxbgxb201403035

• Orignal Article • Previous Articles     Next Articles

Image encryption algorithm based on chaos and dynamic DNA coding

TIAN Hai-jiang1, LEI Peng2,WANG Yong2   

  1. 1.Periodical Office, Chongqing University of Posts and Telecommunications,Chongqing 400065,China;
    2.College of Computer Science and Technology, Chongqing University of Posts and Telecommunications,Chongqing 400065, China
  • Received:2013-02-01 Online:2014-03-01 Published:2014-03-01

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Abstract: An image encryption algorithm based on dynamic DNA coding is proposed, which uses the spatiotemporal chaotic model as the core control function. In this algorithm, the indexes are created according to the status values of the coupled map lattices. Then, the DNA coding rules are determined by the indexes. Since the pixels are coded as different DNA bases with variable rules, the security of the encryption algorithm is improved. Moreover, the Cipher-block chaining mode and chaos iteration are employed in the encryption process to enhance the confusion and diffusion of the algorithm. Simulation experiments show that the proposed algorithm has good security and high potential to be applied in image encryption.

Key words: computer application, chaos, image encryption, DNA coding, coupled map lattices

CLC Number: 

  • TP301
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