Enhanced DFT-Based Chaotic Image Block Cipher with Several Modes of Operation

Mahmoud Y.M. Yassin*, Ali A. Nasir, Mostafa Taha, Naveed Iqbal

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Chaotic image encryption has been investigated extensively in the literature in different domains, including the frequency domain using Discrete Fourier Transform (DFT). Despite DFT-based chaotic image cryptosystems exhibiting good confusion properties, they suffer from poor diffusion characteristics and non-uniform histograms. Therefore, they are vulnerable to many attacks, such as differential attacks, and statistical cryptanalytic attacks. This paper presents an enhanced block cipher image cryptosystem with several modes of operation based on the concept of bit reversal using the 2D chaotic Baker map and DFT. The proposed enhancement develops an improved image encryption scheme that involves properly diffusion-confusion enhanced operations within modified versions of the known block cipher modes of operation, namely Cipher Block Chaining Mode (CBC), Cipher Feedback Mode (CFB), and Output Feedback Mode (OFB). These enhanced operations are based on a 2D chaotic baker map in the Fourier domain. The proposed enhancement is validated using a MATLAB simulation. Results show that the proposed work manages to overcome the abovementioned problems outstandingly and outperforms the existing results in the literature in many encryption quality metrics.

Original languageEnglish
Title of host publication2023 12th International Conference on Image Processing Theory, Tools and Applications, IPTA 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350325416
DOIs
StatePublished - 2023
Event12th International Conference on Image Processing Theory, Tools and Applications, IPTA 2023 - Paris, France
Duration: 16 Oct 202319 Oct 2023

Publication series

Name2023 12th International Conference on Image Processing Theory, Tools and Applications, IPTA 2023

Conference

Conference12th International Conference on Image Processing Theory, Tools and Applications, IPTA 2023
Country/TerritoryFrance
CityParis
Period16/10/2319/10/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

  • Baker map
  • Bit reversal
  • Discrete Fourier Transform (DFT)
  • Image encryption
  • Modes of operation

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Science Applications
  • Computer Vision and Pattern Recognition
  • Signal Processing
  • Radiology Nuclear Medicine and imaging

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