The 40 thieves realize that the fortune in their cave is vanishing. A rumor says that Ali Baba has been granted access (in the form of a certificate) to the cave but they need evi...
Unique and challenging security problems arise due to the scarcity of computational, storage, and power resources in the low-cost pervasive computing environment. Particularly rel...
The Resource Oriented Authorization Manager (ROAM) was created to provide a simple but flexible authorization system for the National Fusion Grid (FusionGrid). This system builds ...
This paper describes a prototype system, ZoneIT, for selectively controlling functionality of mobile devices, e.g. ringing of cellular telephones. ZoneIT exploits the fact that ma...
The conceptual architecture of the access control system described here is based on automatic distributed acquisition and processing of knowledge about users and devices in comput...