In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
Optical scan electronic voting machines employ software components that are customized for each specific election. Such software components are critical from a security and integr...
Seda Davtyan, Sotiris Kentros, Aggelos Kiayias, La...
While general-purpose processor based systems are built to enforce memory protection to prevent the unintended sharing of data between processes, current systems built around reco...
Ted Huffmire, Timothy Sherwood, Ryan Kastner, Timo...
Identity management has arisen as a major and urgent challenge for internet-based communications and information services. Internet services involve complex networks of relationshi...
Data is routinely created, disseminated, and processed in distributed systems that span multiple administrative domains. To maintain accountability while the data is transformed b...