Privacy and identity management - the smart revolution 12th IFIP WG 9.2, 9.5, 9.6/11.7, 11.6/SIG 9.2.2 International Summer School, Ispra, Italy, September 4-8, 2017 : revised selected papers - Hansen, Marit 1969-; Kosta, Eleni 1979- (Springer, 2018)