JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 29 Issue 6
November 2014
Article Contents
LI Hong-kai and QIU Guo-yong. An image block encryption algorithm of wavelet domain based on hyperchaostic theory[J]. Journal of Light Industry, 2014, 29(6): 67-72. doi: 10.3969/j.issn.2095-476X.2014.06.015
Citation: LI Hong-kai and QIU Guo-yong. An image block encryption algorithm of wavelet domain based on hyperchaostic theory[J]. Journal of Light Industry, 2014, 29(6): 67-72. doi: 10.3969/j.issn.2095-476X.2014.06.015 shu

An image block encryption algorithm of wavelet domain based on hyperchaostic theory

  • Received Date: 2014-04-21
    Available Online: 2014-11-15
  • Aiming at the problem of high complexity of image encryption algorithm at present, a new wavelet domain block encryption method was proposed.First, the algorithm decomposed the original image into multiple different resolution images using DWT (discrete wavelet transform), and the low-frequency coefficients of the image were scrambled by the hyperchaotic system.After IDWT (inverse discrete wavelet transform), bitwise XOR was performed on the reconstructured image with a sequence generated using hyper-chaostic system.The experimental results verified that the grey information of the original image was hidden, this encrypting method had a large space of keys and high safety performance; and the scrambled image had good performance of the resisting statistic attack and differential cryptanalysis.
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