Computer Security - ESORICS 2019 24th European Symposium on Research in Computer Security, Luxembourg, September 23-27, 2019, Proceedings, Part II - Sako, Kazue; Sako, Kazue; Schneider, Steve; Schneider, Steve; Ryan, Peter Y. A.; Ryan, Peter Y. A. (Springer International Publishing : Imprint: Springer, 2019)