Science of Cyber Security Second International Conference, SciSec 2019, Nanjing, China, August 9-11, 2019, Revised Selected Papers - Liu, Feng; Liu, Feng; Xu, Jia; Xu, Jia; Xu, Shouhuai; Xu, Shouhuai; Yung, Moti; Yung, Moti (Springer International Publishing : Imprint: Springer, 2019)