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A two-layer networks-based audio encryption/decryption scheme via fixed-time cluster synchronization
DOI:10.1007/s00500-022-07335-x.png)
摘要
En 中文
In this paper, an audio encryption/decryption scheme based on the cluster synchronization of two-layer complex networks within fixed-time is proposed. The two-layer network model composed of multiple encryption/decryption units, in which the nodes in each unit behave identical dynamics, while the nodes in different ones may behave different dynamics, is adopted. These encryption/decryption units can be processed in parallel, such that the speed for information encryption/decryption can be greatly improved. The drive network is used for encryption, and the response network is used for decryption. The encryption/decryption process mainly includes two steps: time-domain scrambling and encryption function operation. The chaotic sequences generated by multiple different chaotic systems are used as the keys, and the symmetric encryption method based on the synchronization of complex networks is used, which can make the key space be larger and the security be higher. Moreover, the fixed-time strategy is introduced such that the encryption/decryption time is controllable and predictable, this is a very important indicator in practical applications. The feasibility and effectiveness of the given audio encryption scheme are verified by the theoretical analysis and numerical simulation results.
Keyword:
Two-layer complex dynamic networks
Fixed-time cluster synchronization
Chaotic systems
Audio encryption
decryption
期刊
IF:
2.5
论文数:
1.0W
被引数:
2.1W
机构
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