Given a client/server application, how can the server entrust the integrity of the remote client, albeit the latter is running on an un-trusted machine? To address this research p...
After thirty years of work on computer security, why are almost all the systems in service today extremely vulnerable to attack? The main reason is that security is expensive to s...
Abstract. The event-condition-action (ECA) paradigm holds enormous potential in pervasive computing environments. However, the problem of reliable delivery of event data, generated...
Communities are the latest phenomena on the Internet. At the heart of each community lies a social network. In this paper, we show a generalized framework to understand and reason...
In the current public-key infrastructure (PKI) schemes based on X.509, a relying party must validate a user’s certificate as well as the existence of a path from its trust point...