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  4. An efficient and lightweight image encryption technique using Lorenz chaotic system

An efficient and lightweight image encryption technique using Lorenz chaotic system

MMC.
2024;
Volume 11, Number 3
: pp. 702–709
https://doi.org/10.23939/mmc2024.03.702
Received: March 10, 2023
Revised: September 17, 2024
Accepted: September 19, 2024

Singh P. K., Jha B., Kumar S.  An efficient and lightweight image encryption technique using Lorenz chaotic system.  Mathematical Modeling and Computing. Vol. 11, No. 3, pp. 702–709 (2024)

Authors:
  1. P. K. Singh
  2. B. Jha
  3. S. Kumar
1
Department of Computer Science, Central University of South Bihar
2
Department of Computer Science, Central University of South Bihar
3
Department of Computer Science, Central University of South Bihar

In the past few years, to store and transmit image data securely, numerous research initiatives on image encoding have been conducted.  The primary objective of the image encryption technique is to safeguard the image by sabotaging the pixel pattern. Researchers suggested a safe, portable, and simple to use image encryption technique in this work.  The encryption of the image is done using a bit-wise XOR operation, where the bit-wise operation is applied on each pixel of the plain image with a pseudo-random number that is created by the Lorenz chaotic system, to prevent unwanted access to confidential image data.  The results of the experiments demonstrate that the suggested technique offers effective image encryption and decryption.  The key stream of the encrypted image is made up of pseudo-random digits generated by the Lorenz Chaotic System.  Several experimental tests have been performed, including histogram, correlation, information entropy, and differential analysis.  The experimental findings reveal that the suggested approach performs image encryption and decryption efficiently.

cryptography
image encryption
Lorenz chaotic system
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