The Department of Homeland Security (DHS) shifted the focus of airport security in 2004 to incorporate the need to continuously and rapidly adapt security to shifting threats. MIT...
We define a new fixpoint modal logic, the visibly pushdown ?-calculus (VP-?), as an extension of the modal ?-calculus. The models of this logic are execution trees of structured p...
Abstract. Both proofs and trust relations play a role in security decisions, in particular in determining whether to execute a piece of code. We have developed a language, called B...
Abstract. Safety systems for railways have shifted from electronic relays to more computer-oriented approaches. This article highlights the language EURIS from NS Railinfrabeheer, ...
Fokko van Dijk, Wan Fokkink, Gea Kolk, Paul van de...
We extend the logic and semantics of authorization due to Abadi, Lampson, et al. to support restricted delegation. Our formal model provides a simple interpretation for the variety...