Funding for this research was provided by:
National Natural Science Foundation of China (61801126)
Open project of CAS Key Laboratory of Quantum Information, University of Science and Technology of China (KQI201902)
Research and Application of Key Technologies for Open Source Software Security Monitoring (SGFJXT00YJJS1800074)
Article History
Received: 5 December 2019
Accepted: 29 March 2020
First Online: 10 April 2020