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A Novel Image Encryption Technique Based on Cyclic Codes over Galois Field.

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This study introduces a novel image encryption method using Bose Chaudhary Hocquenghem (BCH) codes over Galois fields. The proposed technique enhances digital image security for confidential data, outperforming the Advanced Encryption Standard (AES) algorithm.

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Area of Science:

  • Computer Science
  • Information Security
  • Cryptography

Background:

  • Digital image security is crucial for data transmission and storage in the digital age.
  • Unauthorized access to confidential images poses significant risks in various sectors, including security agencies.
  • Existing encryption methods may require enhancement for robust protection against evolving threats.

Purpose of the Study:

  • To develop and evaluate a novel image encryption scheme using Bose Chaudhary Hocquenghem (BCH) codes over Galois fields.
  • To enhance the security of digital images against unauthorized access and data breaches.
  • To provide a secure solution for confidential image data protection for security agencies.

Main Methods:

  • Utilizing Bose Chaudhary Hocquenghem (BCH) codes over Galois fields to construct Maximum Distance Separable (MDS) matrices and secret keys.
  • Implementing an image encryption technique based on these BCH code-derived matrices and keys.
  • Analyzing the encrypted image quality using metrics such as correlation, energy, homogeneity, and entropy.
  • Performing histogram analysis on the encrypted images to assess data distribution and randomness.

Main Results:

  • The proposed image encryption scheme demonstrates improved security analysis results compared to the original Advanced Encryption Standard (AES) algorithm.
  • The BCH code-based encryption effectively obscures image data, enhancing confidentiality.
  • Quantitative analysis indicates robust encryption performance based on correlation, energy, homogeneity, and entropy metrics.

Conclusions:

  • The BCH code-based image encryption scheme offers a secure and effective solution for protecting digital images.
  • This method is particularly suitable for security agencies requiring high levels of confidentiality for their image data.
  • The proposed technique represents a significant advancement in secure image transmission and storage.