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- W4292693222 endingPage "2628" @default.
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- W4292693222 abstract "High security has always been the ultimate goal of image encryption, and the closer the ciphertext image is to the true random number, the higher the security. Aiming at popular chaotic image encryption methods, particle swarm optimization (PSO) is studied to select the parameters and initial values of chaotic systems so that the chaotic sequence has higher entropy. Different from the other PSO-based image encryption methods, the proposed method takes the parameters and initial values of the chaotic system as particles instead of encrypted images, which makes it have lower complexity and therefore easier to be applied in real-time scenarios. To validate the optimization framework, this paper designs a new image encryption scheme. The algorithm mainly includes key selection, chaotic sequence preprocessing, block scrambling, expansion, confusion, and diffusion. The key is selected by PSO and brought into the chaotic map, and the generated chaotic sequence is preprocessed. Based on block theory, a new intrablock and interblock scrambling method is designed, which is combined with image expansion to encrypt the image. Subsequently, the confusion and diffusion framework is used as the last step of the encryption process, including row confusion diffusion and column confusion diffusion, which makes security go a step further. Several experimental tests manifest that the scenario has good encryption performance and higher security compared with some popular image encryption methods." @default.
- W4292693222 created "2022-08-23" @default.
- W4292693222 creator A5019704254 @default.
- W4292693222 creator A5051286648 @default.
- W4292693222 creator A5051434121 @default.
- W4292693222 date "2022-08-22" @default.
- W4292693222 modified "2023-10-10" @default.
- W4292693222 title "Single-Objective Particle Swarm Optimization-Based Chaotic Image Encryption Scheme" @default.
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- W4292693222 doi "https://doi.org/10.3390/electronics11162628" @default.
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