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Authors
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (Nos. 61572089, 61702221)
the MEO Layout Foundation of Humanities and Social Sciences (No.20YJAZH102)
the Foundation of Guangxi Key Laboratory of Cryptography and Information Security (GCIS201908)
the Science and Technology Foundation Project of Guizhou Province (QianKeHeJiChu[2020]1Y422, QianKeHeJiChu[2019]1249)
the Doctoral Talent Training Project of Chongqing University of Posts and Telecommunications (BYJS202003)
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Article History
Received: 8 April 2020
Accepted: 3 July 2020
First Online: 16 July 2020
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
