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Chaos based crossover and mutation for securing DICOM image.

Dhivya Ravichandran1, Padmapriya Praveenkumar1, John Bosco Balaguru Rayappan1

  • 1School of Electrical & Electronics Engineering, SASTRA University, Thanjavur 613401, India.

Computers in Biology and Medicine
|April 6, 2016
PubMed
Summary
This summary is machine-generated.

This study introduces a novel encryption method using combined chaotic maps for secure medical image transmission. The system enhances security through bio-inspired pixel manipulation, ensuring robust protection for Digital Imaging and Communications in Medicine (DICOM) data.

Keywords:
Binary decompositionCLS mapCLT mapChaosCrossoverDICOM encryptionMutation

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Area of Science:

  • Cybersecurity
  • Medical Imaging
  • Applied Mathematics

Background:

  • Secure transmission of sensitive medical data is crucial.
  • Existing encryption methods may lack efficiency or robustness for medical images.
  • Digital Imaging and Communications in Medicine (DICOM) images require specialized security protocols.

Purpose of the Study:

  • To propose a novel, secure encryption scheme for Digital Imaging and Communications in Medicine (DICOM) images.
  • To enhance the confidentiality and integrity of medical image data during transmission.
  • To develop a cryptosystem resilient to various security attacks.

Main Methods:

  • A novel chao-cryptic system combining logistic, tent, and sine chaotic maps.
  • Bio-inspired crossover and mutation units for pixel permutation and diffusion.
  • Generation of chaotic key streams from Combined Logistic-Tent (CLT) and Combined Logistic-Sine (CLS) systems.
  • Decomposition of images and XOR operations with quantized chaotic sequences.

Main Results:

  • The proposed scheme effectively confuses and diffuses DICOM image pixels.
  • Security analyses including statistical, differential, key space, and attack resilience tests were performed.
  • Experimental results demonstrate a desirable level of protection for medical image security.

Conclusions:

  • The developed chao-cryptic scheme offers a robust solution for secure medical image transmission.
  • The combination of chaotic maps and bio-inspired techniques enhances encryption security.
  • The algorithm is suitable for real-time medical image security applications.