• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

An Encrypted Speech Retrieval Scheme Based on Long Short-Term Memory Neural Network and Deep Hashing


Abstract

Due to the explosive growth of multimedia speech data, how to protect the privacy of speech data and how to efficiently retrieve speech data have become a hot spot for researchers in recent years. In this paper, we proposed an encrypted speech retrieval scheme based on long short-term memory (LSTM) neural network and deep hashing. This scheme not only achieves efficient retrieval of massive speech in cloud environment, but also effectively avoids the risk of sensitive information leakage. Firstly, a novel speech encryption algorithm based on 4D quadratic autonomous hyperchaotic system is proposed to realize the privacy and security of speech data in the cloud. Secondly, the integrated LSTM network model and deep hashing algorithm are used to extract high-level features of speech data. It is used to solve the high dimensional and temporality problems of speech data, and increase the retrieval efficiency and retrieval accuracy of the proposed scheme. Finally, the normalized Hamming distance algorithm is used to achieve matching. Compared with the existing algorithms, the proposed scheme has good discrimination and robustness and it has high recall, precision and retrieval efficiency under various content preserving operations. Meanwhile, the proposed speech encryption algorithm has high key space and can effectively resist exhaustive attacks.


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Cite this article

[IEEE Style]
Q. Zhang, Y. Li and Y. Hu, "An Encrypted Speech Retrieval Scheme Based on Long Short-Term Memory Neural Network and Deep Hashing," KSII Transactions on Internet and Information Systems, vol. 14, no. 6, pp. 2612-2633, 2020. DOI: 10.3837/tiis.2020.06.016.

[ACM Style]
Qiu-yu Zhang, Yu-zhou Li, and Ying-jie Hu. 2020. An Encrypted Speech Retrieval Scheme Based on Long Short-Term Memory Neural Network and Deep Hashing. KSII Transactions on Internet and Information Systems, 14, 6, (2020), 2612-2633. DOI: 10.3837/tiis.2020.06.016.

[BibTeX Style]
@article{tiis:23596, title="An Encrypted Speech Retrieval Scheme Based on Long Short-Term Memory Neural Network and Deep Hashing", author="Qiu-yu Zhang and Yu-zhou Li and Ying-jie Hu and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2020.06.016}, volume={14}, number={6}, year="2020", month={June}, pages={2612-2633}}