Funding for this research was provided by:
National Cryptography Development Fund of China (MMJJ20170112)
National Natural Science Foundation of China (61772550, 61572521)
National Natural Science Foundation of China (U1636114)
National Key Research and Development Program of China (2017YFB0802000)
Natural Science Basic Research Plan in Shaanxi Province of China (2018JM6028)
the Foundation of Guizhou Provincial Key Laboratory of Public Big Data (No.2019BDKFJJ008)
Article History
Received: 29 April 2020
Accepted: 25 July 2020
First Online: 6 August 2020
Compliance with ethical standards
:
: This manuscript has not been submitted to, nor is under review at, another journal or other publishing venue. The authors have no affiliation with any organization with a direct or indirect financial interest in the subject matter discussed in the manuscript.