TY - GEN ID - cogprints6709 UR - http://cogprints.org/6709/ A1 - TIGLI, Jean-Yves A1 - LAVIROTTE, Stephane A1 - REY, Gaetan A1 - Hourdin, Vincent A1 - RIVEILL, Michel TI - Context-aware Authorization in Highly Dynamic Environments Y1 - 2009/09// N2 - Highly dynamic computing environments, like ubiquitous and pervasive computing environments, require frequent adaptation of applications. Context is a key to adapt suiting user needs. On the other hand, standard access control trusts users once they have authenticated, despite the fact that they may reach unauthorized contexts. We analyse how taking into account dynamic information like context in the authorization subsystem can improve security, and how this new access control applies to interaction patterns, like messaging or eventing. We experiment and validate our approach using context as an authorization factor for eventing in Web service for device (like UPnP or DPWS), in smart home security. PB - International Journal of Computer Science Issues, IJCSI AV - public ER -