Pavlos Sermpezis

TL;DR: In this article, the authors introduce the concept of soft cache hits (SCHs), which occurs when a user's requested content is not in the local cache, but the user can be satisfied by a related content that is.

TL;DR: The concept of “soft cache hits” (SCHs) is introduced and it is shown that optimal caching with SCH is NP-hard even for a single cache, which means that the optimal caching policy should be revisited when SCHs are allowed.

TL;DR: ARTEMIS is proposed, a defense approach based on accurate and fast detection operated by the autonomous system itself, leveraging the pervasiveness of publicly available BGP monitoring services and their recent shift towards real-time streaming, enabling flexible and fast mitigation of hijacking events.

TL;DR: In this article, the authors present the results of a survey among 75 network operators to study: (a) the operators' awareness of BGP prefix hijacking attacks, (b) presently used defenses (if any), and (c) the willingness to adopt new defense mechanisms, and (d) reasons that may hinder the deployment of prefix-hijacking defenses.

TL;DR: In this paper, the authors proposed ARTEMIS (Automatic and Real-Time Detection and MItigation System), a defense approach based on accurate and fast detection operated by the AS itself, leveraging the pervasiveness of publicly available BGP monitoring services and their recent shift towards real-time streaming, thus enabling flexible and fast mitigation of hijacking events.