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Then we generate chaotic sequences using the 2D-SIFN, construct dynamic S-boxes using these sequences for permutation operations, and finally apply chaotic sequences for diffusion operations to confuse audio data. The simulation experiment results show that the proposed algorithm performs excellently in metrics such as Number of Sample Change Rate (NSCR) and Normalized Cross-correlation (NCC) analysis, proving the feasibility of applying S-boxes to audio data encryption algorithms and proposing a feasible new approach in the field of secure communication. <\/jats:p>","DOI":"10.1142\/s0218127424501864","type":"journal-article","created":{"date-parts":[[2024,11,18]],"date-time":"2024-11-18T04:20:16Z","timestamp":1731903616000},"source":"Crossref","is-referenced-by-count":2,"title":["An Audio Encryption Algorithm Based on 2D Chaotic Map and Dynamic S-Box"],"prefix":"10.1142","volume":"34","author":[{"given":"Qiankun","family":"Wang","sequence":"first","affiliation":[{"name":"School of Mechanical and Electrical Engineering, Shandong University at Weihai, Weihai 264209, P. R. 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