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A Novel Color Image Encryption Algorithm Based on 5-D Hyperchaotic System and DNA Sequence.

Xinyu Li1, Jian Zeng1, Qun Ding1

  • 1Electronic Engineering College, Heilongjiang University, Harbin 150080, China.

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|September 23, 2022
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Summary
This summary is machine-generated.

This study introduces a novel image encryption method using hyperchaos and DNA sequences for secure data transmission. The algorithm enhances image security through bit-level permutation, offering robust protection against attacks.

Keywords:
5-D hyperchaotic systemDNA encodingbit-level permutationcolor image encryption

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Area of Science:

  • Computer Science
  • Cryptography
  • Information Security

Background:

  • Image encryption is crucial for secure data transmission.
  • Existing methods face challenges in performance and security.
  • Hyperchaotic systems and DNA computing offer potential solutions.

Purpose of the Study:

  • To propose a novel bit-level permutation algorithm for image encryption.
  • To enhance the security and pseudo-randomness of encrypted images.
  • To combine a 5-D hyperchaotic system with DNA sequence encryption.

Main Methods:

  • A new 5-D hyperchaotic system was constructed.
  • Plaintext color images were decomposed into R, G, B matrices.
  • Block operations, DNA encoding/decoding, and hyperchaotic sequence-driven operations were applied.
  • Bit-level permutation was performed on the image data.

Main Results:

  • The proposed algorithm generated ciphertext images with good distribution characteristics.
  • The encryption method demonstrated resistance to differential attacks.
  • The system offers a large cryptographic space for enhanced security.

Conclusions:

  • The hyperchaos-based bit-level permutation with DNA encryption provides a secure and efficient method for image encryption.
  • The algorithm effectively enhances image pseudo-randomness and resists common cryptographic attacks.
  • This approach contributes to improving the performance of secure image transmission.