Privacy and Identity Management for Life 7th IFIP WG 9.2, 9.6/11.7, 11.4, 11.6/PrimeLife International Summer School, Trento, Italy, September 5-9, 2011, Revised Selected Papers - Camenisch, Jan; Crispo, Bruno; Fischer-Hübner, Simone; Leenes, Ronald; Russello, Giovanni (Springer Berlin Heidelberg, 2012)