CardSpace (formerly known as InfoCard) is a Digital Identity Management system that has recently been adopted by Microsoft. In this paper we identify two security flaws in CardSp...
Role based access control (RBAC) allows users access to resources based on their competencies and responsibilities within an organization. Typically, RBAC is provided as a securit...
— This paper analyzes the performance of a system architecture for the Authentication, Authorization, and Accounting (AAA), in a scenario where 3G users generate traffic and invo...
We designed a secure key registration system based on the proactive secret-sharing scheme. A user can register important data such as a session key to a distributed system in a (t...
Authentication in public spaces poses significant security risks. Most significantly, passwords can be stolen, potentially leading to fraud. A common method to steal a PIN is thro...