Optimization of SM4 Encryption Algorithm for Power Metering Data Transmission
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Published:2023-12-29
Issue:1
Volume:14
Page:44-57
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ISSN:2226-809X
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Container-title:International Journal of Engineering and Technology Innovation
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language:
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Short-container-title:Int. j. eng. technol. innov.
Author:
Yi-Ming Zhang ,Jia Xu ,Yi-Tao Zhao ,Qing-Chan Liu ,Qiu-Hao Gong
Abstract
This study focuses on enhancing the security of the SM4 encryption algorithm for power metering data transmission by employing hybrid algorithms to optimize its substitution box (S-box). A multi-objective fitness function is constructed to evaluate the S-box structure, aiming to identify design solutions that satisfy differential probability, linear probability, and non-linearity balance. To achieve global optimization and local search for the S-box, a hybrid algorithm model that combines genetic algorithm and simulated annealing is introduced. This approach yields significant improvements in optimization effects and increased non-linearity. Experimental results demonstrate that the optimized S-box significantly reduces differential probability and linear probability while increasing non-linearity to 112. Furthermore, a comparison of the ciphertext entropy demonstrates enhanced encryption security with the optimized S-box. This research provides an effective method for improving the performance of the SM4 encryption algorithm.
Publisher
Taiwan Association of Engineering and Technology Innovation
Subject
Electrical and Electronic Engineering,Mechanical Engineering,Mechanics of Materials,Civil and Structural Engineering
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