Volume 35 Issue 5
May  2010
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ZHU Congxu, HUANG Dazu, GUO Ying. A New Image Encryption Algorithm Based on Multiple Chaotic Maps and Output-Feedback[J]. Geomatics and Information Science of Wuhan University, 2010, 35(5): 528-531.
Citation: ZHU Congxu, HUANG Dazu, GUO Ying. A New Image Encryption Algorithm Based on Multiple Chaotic Maps and Output-Feedback[J]. Geomatics and Information Science of Wuhan University, 2010, 35(5): 528-531.
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A New Image Encryption Algorithm Based on Multiple Chaotic Maps and Output-Feedback

  • 1School of Information Science and Engineering,Central South University,932 South Lushan Road,Changsha 410083,China;2Department of Information Management,Hunan College of Finance and Economics,139 Fenglin Road,Changsha 410205,China

Funds: 国家自然科学基金资助项目(60902044)；中南大学首批研究生培养扶植基金资助项目(71333000482)
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  • Received Date: March 14, 2010
  • Revised Date: July 08, 2013
  • Published Date: May 04, 2010
    Graphical Abstract
    • Abstract
  • A new chaotic image encryption algorithm based on multi logistic maps(LMs) and piecewise sine chaotic maps(PSCMs) is proposed.The initial values and system parameters of the m PSCMs are generated by four LMs via iteration.By using the m-PSCMs chaotic secret key stream are generated.The image is encrypted two rounds by the chaotic secret key stream pixel by pixel and ciphertext output-feedback technology is introduced.The experimental results demonstrate that the extremely sensitive to the key and the plaintext,the ciphered image has random-like distribution behavior of grey values,the adjacent pixels have zero co-correlation properties.Furthermore,the algorithm shows the advantages of large key space and high speed of encryption.
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