An efficient medical image encryption using hybrid DNA computing and chaos in transform domain (original) (raw)

Abstract

In this growing era, a massive amount of digital electronic health records (EHRs) are transferred through the open network. EHRs are at risk of a myriad of security threats, to overcome such threats, encryption is a reliable technique to secure data. This paper addresses an encryption algorithm based on integer wavelet transform (IWT) blended with deoxyribo nucleic acid (DNA) and chaos to secure the digital medical images. The proposed work comprises of two phases, i.e. a two-stage shuffling phase and diffusion phase. The first stage of shuffling starts with initial block confusion followed by row and column shuffling of pixels as the second stage. The pixels of the shuffled image are circularly shifted bitwise at the first stage of diffusion to enhance the security of the system against differential attack. The second stage of diffusion operation is based on DNA coding and DNA XOR operations. The experimental analyses have been carried out with 100 DICOM test images of 16-bit depth to evaluate the strength of the algorithm against statistical and differential attacks. By the results, the maximum entropy has been obtained an average of 15.79, NPCR of 99.99, UACI of 33.31, and larger keyspace of 10140, which infer that our technique overwhelms various other state-of-the-art techniques.

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Acknowledgements

Authors wish to thank the Intrusion Detection Lab at School of Electrical & Electronics Engineering, SASTRA Deemed University, for providing infrastructural support to carry out this research work.

Funding

The authors wish to express their sincere thanks to the INSPIRE Fellowship (No. DST/INSPIRE Fellowship/2015/IF150628), Department of Science and Technology (DST), India, for their financial support and FIST funding (SR/FST/ET-II/2018/221).

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Authors and Affiliations

  1. School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, 613 401, India
    Dhivya Ravichandran, Aashiq Banu S, Vidhyadharini Balasubramanian & Rengarajan Amirtharajan
  2. Ministry of Electronics and IT, New Delhi, India
    B.K Murthy
  3. Infosys Limited, Mysore, Karnataka, 570027, India
    Sherin Fathima

Authors

  1. Dhivya Ravichandran
  2. Aashiq Banu S
  3. B.K Murthy
  4. Vidhyadharini Balasubramanian
  5. Sherin Fathima
  6. Rengarajan Amirtharajan

Corresponding author

Correspondence toRengarajan Amirtharajan.

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Ravichandran, D., Banu S, A., Murthy, B. et al. An efficient medical image encryption using hybrid DNA computing and chaos in transform domain.Med Biol Eng Comput 59, 589–605 (2021). https://doi.org/10.1007/s11517-021-02328-8

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