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An Innovative Image Encryption Algorithm Based on the DNAS_box and Hyperchaos.

Da Qiu1,2, Tingting Zhang2, Jingyi Liu1,2

  • 1College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China.

Entropy (Basel, Switzerland)
|March 28, 2025
PubMed
Summary
This summary is machine-generated.

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This study introduces a novel image encryption method using DNA coding and hyperchaos. The algorithm achieves robust security with a vast key space and high confusion/diffusion, protecting digital images effectively.

Area of Science:

  • Computer Science
  • Cryptography
  • Information Security

Background:

  • Digital image security is crucial in the modern era.
  • Existing encryption methods face challenges in achieving high security and efficiency.
  • Chaos theory and DNA computing offer promising avenues for advanced cryptographic techniques.

Purpose of the Study:

  • To propose and validate a new image encryption algorithm.
  • To leverage hyperchaos and a dynamic DNA computing box (DNAS_box) for enhanced security.
  • To ensure a large key space and resistance against various cryptanalytic attacks.

Main Methods:

  • A hyperchaotic system generates chaotic sequences for encryption.
  • Dynamic encoding of plaintext images using 2-bit deoxyribonucleic acid (DNA) coding and 4-bit DNA-like coding.
Keywords:
DNA codingS_BOXchaos sequenceimage encryption

Related Experiment Videos

  • Utilizing a DNAS_box for seamless conversion between 2-bit and 4-bit DNA coding schemes.
  • Performing XOR operations with DNA-encoded keys and chaotic sequences for encryption and decryption.

    • Main Results:

    • The algorithm demonstrated a key space of approximately 10^145, indicating strong resistance to brute-force attacks.
    • High values for the Number of Pixel Change Rate (NPCR) exceeding 99.5% and ciphertext entropy above 7.997 were achieved.
    • MATLAB simulations confirmed the algorithm's effectiveness and robust security performance.

    Conclusions:

    • The proposed image encryption algorithm offers a significant advancement in secure data transmission.
    • The integration of hyperchaos and dynamic DNA coding provides a powerful and secure encryption solution.
    • The algorithm is suitable for applications requiring high-level image security.