Thomas Vilarinho Kjetil Haslum Josef Noll Advanced SIM Capabilities Supporting Trust-Based Applications. 223-238 2009 NordSec http://dx.doi.org/10.1007/978-3-642-04766-4_16 conf/nordsec/2009 db/conf/nordsec/nordsec2009.html#VilarinhoHN09