Wang, Xingyuan
Sun, Huaihuai http://orcid.org/0000-0003-4787-8665
Funding for this research was provided by:
National Natural Science Foundation of China (61672124)
National Natural Science Foundation of China (61370145)
Password Theory Project of the 13th Five-Year Plan National Cryptography Development Fund (MMJJ20170203)
Article History
Received: 28 January 2019
Revised: 22 July 2019
Accepted: 2 August 2019
First Online: 14 August 2019