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A Multi-Level Blocks Scrambling Based Chaotic Image Cipher

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Contemporary Computing (IC3 2010)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 94))

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Abstract

In this paper, an image encryption scheme based on multi-level blocks scrambling is proposed. The image is first decomposed into non-overlapping blocks and scrambling of these blocks is done by using 2D Cat transform. Multi-level blocks scrambling (MLBS) is implemented by starting with a large block size and the size of blocks gets reduced iteratively at each level. The scrambling of blocks is performed at multiple levels to get cummulative effect. At each level, the control parameters of scrambling are randomly generated through 2D coupled Logistic map to make the process of scrambling key dependent. The scrambled image obtained after carrying out MLBS scrambling is encrypted using chaotic sequence generated by one-dimensional Logistic map. The experimental results show that the proposed encryption scheme can successfully encrypts/decrypts the images with same secret keys. The algorithm has large key space and high sensitivity to a small change in secret keys. The simulation analysis also demonstrates that the ciphered images have high information entropy, very low correlation coefficients and uniform gray level distribution.

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Author information

Authors and Affiliations

  1. Department of Computer Engineering, ZH College of Engineering and Technology, A. M. U., Aligarh, 202 002, India

    Musheer Ahmad

  2. Department of Electronics Engineering, ZH College of Engineering and Technology, A. M. U., Aligarh, 202 002, India

    Omar Farooq

Authors
  1. Musheer Ahmad
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  2. Omar Farooq
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Editor information

Editors and Affiliations

  1. Dept. of Computer Sciences, University of Florida, 32611, Gainesville, FL, USA

    Sanjay Ranka

  2. University of Florida, Gainesville, Fl, USA

    Arunava Banerjee

  3. Department of Computer Science and Engineering, Indian Institute of Technology, 110016, New Delhi, INDIA

    Kanad Kishore Biswas

  4. Computer Science, College of Engineering and Science, Louisiana Tech University, LA 71272, Ruston, USA

    Sumeet Dua

  5. University of Florida, Gainesville, FL, USA

    Prabhat Mishra

  6. Department of Computer Science & Engineering, Indian Institute of Technology, 208016, Kanpur, India

    Rajat Moona

  7. National Tsing Hua University, Hsin-Chu, Taiwan, R.O.C.

    Sheung-Hung Poon

  8. Department of Computer Science, The University of Hong Kong, Pokfulam Road, Hong Kong

    Cho-Li Wang

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© 2010 Springer-Verlag Berlin Heidelberg

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Ahmad, M., Farooq, O. (2010). A Multi-Level Blocks Scrambling Based Chaotic Image Cipher. In: Ranka, S., et al. Contemporary Computing. IC3 2010. Communications in Computer and Information Science, vol 94. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14834-7_17

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  • DOI: https://doi.org/10.1007/978-3-642-14834-7_17

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-14833-0

  • Online ISBN: 978-3-642-14834-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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