- Количество слайдов: 18
FI Team • Director: Prof. Kimmo Raatikainen • Research co-ordinator: Oriana Riva • Seniors: – Adj. Prof. Patrik Floréen – Adj. Prof. Andrei Gurtov – Dr. Arto Karila – Dr. Kristiina Karvonen – Univ. Lect. Markku Kojo – Prof. Jukka Manner – Dr. Pekka Nikander – Dr. Ken Rimey – Adj. Prof. Sasu Tarkoma – Prof. Antti Ylä-Jääski
The Vision of the Future • User expectations: – Future applications and platforms will be contextsensitive, adaptive, and personalized – They need to be run, in a reasonable and secure manner, on a variety of execution environments: anywhere, anyhow, anytime, by anyone • Required system properties: – self-aware, distributable, reconfigurable, proactive, collaborative, secure, trusted, privacy providing, mobile, diversely accessible, extendable, incrementally deployable, resource-aware, …
Research Challenges in Future Internet • Research Challenges: – Security-Trust-Privacy – Mobile Always-on Connectivity – Scalable Open Service Architectures • Solutions are sought in distributed algorithms and structures, middleware, and protocols.
Dual Approach to Future Internet • Improving current Internet – Protocol enhancements: HIP, TCP, DCCP, SIP, etc – Overlay networks – Secure push • Starting from clean table – Publish-subscribe paradigm – Applying microeconomics and game theory
Current Projects PSIRP: Publish-Subscribe Internet Routing Paradigm Ubi. Life Future Mobility Middleware Awiss. Net: Ad-hoc PAN & WIreless Sensor SEcure NETwork Trust for All Web Services In Ad Hoc and Mobile Infra Location Privacy and Authentication In Massively Distributed Systems Trustworthy Internet Infra. HIP Nordic. HIP Finland-ICSI Center for Novel Internet Architectures M E R C O N E A B I I N H O N E T S
Security-Trust-Privacy Andrei Gurtov Adj. Prof.
Research Challenges • Secure mobility and multihoming – Secure mapping between identifiers and locators – Efficiency and scalability of DHT and DNS systems • Eavesdropping/modification of network traffic – Lack of IPsec deployment • Denial-of-service attacks • Tracking user identity and location • Troubles of SSL/TLS certificate model • Email SPAM • Usability of security for a wide range of people • Interoperating IPv 4 and IPv 6 applications and networks
Main Achievements • Open-source implementation of Host Identity Protocol • • (HIPL) – Prevents eavesdropping and some Do. S attacks – Secure mobility/multihoming, middlebox friendly – New IPsec mode integrated into standard Linux kernel – Chairing research group in IRTF, IETF drafts Scalability and performance results of DHT/rendezvous systems using Planetlab testbed International collaboration network (Berkeley, EU) – Article at Sigcomm’ 07 on Delegation-Oriented Network Architecture
Future Directions • Internal HIP deployment in the group’s computers • Secure Vo. IP architecture/demo using P 2 PSIP model • HIP on Platforms implementation (Symbian/Internet • • tablet) – IP security on lightweight devices Applying game theory to model economic aspects of security Evaluating security and mobility in DHTs Distributed trust, discovery of trust paths in community Usability evaluations with user experiments and interviews
Mobile Always-on Connectivity Jukka Manner Professor, Ph. D.
Research Challenges • Decentralized IP host mobility in radio mesh networks • Next generation network control signalling framework • Congestion controlled datagrams (DCCP) for Vo. IP • SIP-based services for mobile nodes • Heterogeneous traffic in heterogeneous multi-access • • environments Reducing signaling overhead in wireless networks Cross-layer design and inter-layer co-operation
Main Achievements • Many IETF contributions • World first high performance GIST implementation (C) • A new RSS push service for the N 800 tablet based on SIP • Improvements to TCP congestion control for wireless and • • mobile environments using cross-layer design – Algorithms implemented in Linux TCP/IP stack Brought Linux TCP stack into compliance with IETF specifications DCCP code into the Linux kernel (forthcoming)
Future Directions • Continue work with – – • • Next generation network signalling DCCP and SIP Advanced end host mobility in mesh networks Transport protocol improvements in multi-access environments and vertical handoffs New congestion control algorithms and transport protocols for heterogeneous traffic Future Internet architectures – Implications of publish/subscribe paradigm – A topic of the Finland-ICSI Center
Scalable Open Service Architectures Sasu Tarkoma Adj. Prof.
Research Challenges • Evolution towards content-centric networking – Shift towards multicast/anycast messaging – Publish/subscribe for efficient asynchronous communication • Service delivery scalability to millions of customers – Communication and maintenance cost of services like You. Tube are prohibitive – Peer-to-peer technologies can help reduce network and hosting costs and improve scalability • Architectures for easy and secure service access – Open, decentralized identity management (Open. ID) – Seamless Sign-On and easy identity bootstrapping
Main Achievements • Middleware systems – Wireless SOAP, content-based router, XMLaware data synchronizer, mobile desktop search – Fuego and PDIS/S 4 All software used in other projects, also outside HIIT • Contributions to W 3 C Efficient XML Interchange Working Group, WWRF Service Architecture • Public demonstrations and presentations
Future Directions • Publish/Subscribe Internet Routing Paradigm – Develop new protocol stack for pub/sub data-centric routing and forwarding in Internet scale – EU FP 7 STREP project PSIRP coordinated by HIIT • Data structures and algorithms for routing in overlay networks • Peer-to-peer video-on-demand video streaming – Bit. Torrent for browsers • Mobile AJAX: Asynchronous mobile applications • Social networks and incentives for peer-to-peer – Content-centric networking for social collaborative peerto-peer web