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Research on the application of LDPC code in chaotic sequence image encryption

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Abstract

Low density parity check code (LDPC) is a linear block code whose performance is close to Shannon’s limit. Compared with other decoding algorithms, it has low decoding complexity and flexible structure. So it becomes people’s research hotspots. In recent years, LDPC code codec algorithm has been improved, and is widely used in deep space communications, optical fiber communications, mobile communications and underwater and other fields. Using chaotic sequence single-layer mapping plus pixel scrambling can complete chaotic image encryption, because some chaotic sequence is poor robust, in the process of channel transmission, it is difficult to ensure that the information can be destroyed after the attack In this paper, LDPC codes are introduced, and in the chaotic image encryption, block coding is used to form error protection to improve the stability of the image transmission process and improve the transmission quality.

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Authors and Affiliations

  1. Institute of Science and Technology for Opto-Electronics Information, Yantai University, Yantai, China

    Zhong-xun Wang, Yang Lou, Wen-qi Wang, Min Zhang & Xiao-lin Li

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  1. Zhong-xun Wang
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  2. Yang Lou
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  3. Wen-qi Wang
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  4. Min Zhang
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  5. Xiao-lin Li
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Correspondence to Zhong-xun Wang.

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Wang, Zx., Lou, Y., Wang, Wq. et al. Research on the application of LDPC code in chaotic sequence image encryption. Cluster Comput 22 (Suppl 3), 6359–6370 (2019). https://doi.org/10.1007/s10586-018-2134-y

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  • DOI: https://doi.org/10.1007/s10586-018-2134-y

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