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A system of cooperative security for the Internet and 5G

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Customer Edge Switching (CES) is a new Internet architecture, driven by security, trust and the needs of battery powered wireless devices. CES allows devices with private addresses to initiate and receive packet flows over the Internet. The edge nodes (CES nodes) act as generalized network address translators and tunnel endpoints for the packet flows. Tunnel establishment as well as host to host relation are managed by policy executed at the edge nodes. For compatibility with legacy Internet we propose a Realm Gateway (RGW) that acts as a client and server side NAT . This makes it possible to deploy CES /RGW one network at a time. The policy can be either static or dynamic. The approach motivates ubiquitous collection of evidence of misbehavior, aggregating the evidence, calculating a trust/reputation value for each entity in the network and using that to guide the admission decisions as well as contain the infected entities. This leads to a cooperative approach to end system and network security.

Besides the concepts, the talk describes the experience of implementing a Proof of Concept of CES /RGW and our ongoing work towards developing and deploying a more realistic version in a 5G test network we are working on in Aalto in cooperation with companies such as Nokia. Ericsson and Huawei. Publications on CES /RGW can be found at and ReseachGate.

Bio: Raimo Kantola is a full professor of Networking Technology at Aalto University, Communications and Networking, Finland. Until 1996 when he joined the Helsinki University of Technology (that in 2010 merged into Aalto), he worked for Nokia Networks for 15 years in roles from switching system software development to Department Head in R&D and Product marketing in Finland, UK and the US. His research interests have been in Quality of Service, peer to peer, ad-hoc networks, routing and switching and most lately trust and security in networks. Professor Kantola is the initiator of International Master education in engineering at HUT and he has held many positions of trust at the University. Recently he has become active in conference organization (IEEE TrustCom 2015, NSS 2017 etc.).

This talk is part of the Computer Laboratory Systems Research Group Seminar series.

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