This paper presents the Authorization Service provided by Tivoli Policy Director (PD) and its use by PD family members as well as third-party applications. Policies are defined ov...
The problem of secure routing in mobile ad hoc networks is long-standing and has been extensively studied by researchers. Recently, techniques of aggregating signatures have been a...
We present a stream tapping protocol that involves clients in the video distribution process. As in conventional stream tapping, our protocol lets new clients tap the most recent ...
We describe the design and implementation of a security infrastructure for a distributed Java application. This work is inspired by SDSI/SPKI, but has a few twists of its own. We ...
DKAL is a new declarative authorization language for distributed systems. It is based on existential fixed-point logic and is considerably more expressive than existing authoriza...