Fast pre-processing hex Chaos triggered color image cryptosystem

  • Sujarani Rajendran
  • Kannan Krithivasan
  • Manivannan DoraipandianEmail author
  • Xiao-Zhi Gao


In the present study, a robust color image cryptosystem based on a novel structure of chaotic pre-processing is proposed, which greatly reduce the execution time and memory usage and also increase the performance of confusion and diffusion phases. Position of pixels are scrambled in confusion phase by applying the chaotic series of hyper Lorenz system. In diffusion phase, a novel structure of bit level merging and circular shifting operation is adopted to strengthen the security level, further an inter – exclusive OR (XOR) operation is executed between each layers (Red, Blue, Green) to obtain cipher image. Evaluation results shows that the proposed pre-processing system has better performance with minimum cost than other available pre-processing methods. Assessment results proves the ability of the algorithm to resist statistical and differential attacks. Comparison of encryption quality assures that the proposed system has better encryption effect than existing one and exhaustive attack analysis proves the robustness. Consequently, these results expose the proposed cryptosystem could be a best fit for secure storage and transfer of images in real-time applications.


Hyper-chaotic system Image encryption Lorenz chaotic map Security 



The Authors gratefully acknowledge the Department of Science and Technology, India for Fund for Improvement of S&T Infrastructure in Universities and Higher Educational Institutions (SR/FST/ETI-371/2014), (SR/FST/MSI-107/2015) and Tata Realty- IT City – SASTRA Srinivasa Ramanujan Research Cell of our University for the financial support extended to us in carrying out this research work.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  • Sujarani Rajendran
    • 1
  • Kannan Krithivasan
    • 2
  • Manivannan Doraipandian
    • 3
    Email author
  • Xiao-Zhi Gao
    • 4
  1. 1.Department of Computer Science, Srinivasa Ramanujan CentreSASTRA Deemed UniversityKumbakonamIndia
  2. 2.Discrete Mathematics Research Laboratory (DMRL), Department of MathematicsSASTRA Deemed UniversityThanjavurIndia
  3. 3.School Of ComputingSASTRA Deemed UniversityThanjavurIndia
  4. 4.School of ComputingUniversity of Eastern FinlandKuopioFinland

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