File distribution is becoming a key technology, in particular in large scale content broadcasting systems like DVBH/SH. They largely rely on Application Level FEC codes (ALFEC) in ...
In this paper, we describe how a large webmail service uses reputation to classify authenticated sending domains as either spammy or not spammy. Both SPF and DomainKey authenticat...
In this paper, we investigate the security, in the Luby-Rackoff security paradigm, of blockcipher modes of operation allowing to expand a one-block input into a longer t-block ou...
Adopting a programming-language perspective, we study the problem of implementing authentication in a distributed system. We define a process calculus with constructs for authent...
In this paper, we present a framework for achieving anonymity and trust, two seemingly contradictory properties, in distributed systems. Our approach builds on webs of trust, a we...
Michael Backes, Stefan Lorenz, Matteo Maffei, Kim ...