Privacy and Identity Management for Life : 6th IFIP WG 9.2, 9.6/11.7, 11.4, 11.6/PrimeLife International Summer School, Helsingborg, Sweden, August 2-6, 2010, Revised Selected Papers - Simone Fischer-Hübner, Penny Duquenoy, Marit Hansen, Ronald Leenes, Ge Zhang ((IFIP Advances in Information and Communication Technology))