Luo, Chao
Zhang, Nannan
Wang, Xingyuan
Funding for this research was provided by:
National Natural Science Foundation of China (61402267, 61672124)
Natural Science Foundation of Shandong Province (ZR2019MF020)
Major Program of Shandong Province Natural Science Foundation (ZR2018ZB0419)
The Password Theory Project of the 13th Five-Year Plan National Cryptography Development Fund (MMJJ20170203)
Article History
First Online: 4 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants performed by any of the authors.