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| Voice Encryption Algorithm Based on Chaotic System and Dynamic Joseph Ring |
| LIANG Wanyong, ZHAO Kaihui, JIANG Yong, HOU Longjie
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| College of Electric and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China |
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Abstract A voice encryption algorithm based on chaotic sequences and dynamic Joseph rings is proposed. The digitized voice data is used as input to the SHA-256 algorithm to generate a Hash value. The dynamic key and the external input key are combined to generate the initial value of the chaotic system, and the chaotic sequence key stream is generated by the system iteration. The chaotic sequence key stream is used to replace the step size parameter of the Joseph ring. The dynamic Joseph ring with variable step size is used to generate a scrambling matrix. The scrambled data and the chaotic sequence key stream are used for XOR operation to realize the diffusion encryption of voice information. The numerical simulation and security analysis verified the feasibility and security of the voice encryption algorithm.
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Received: 25 September 2023
Published: 09 October 2025
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