1. fi@hiit.fi HIIT’s Future Internet Research Programme Kimmo Raatikainen Programme Director: Future Internet kimmo.raatikainen@hiit.fi

2. 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

3. The Vision of the Future User expectations: –Future applications and platforms will be context- sensitive, 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, …

4. 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.

5. 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

6. Current Projects InfraHIPNordicHIP MERCONEMERCONE ABIABI INHONETSINHONETS Trustworthy Internet Location Privacy and Authentication In Massively Distributed Systems Future Mobility Middleware Web Services In Ad Hoc and Mobile Infra UbiLifeTrust for All PSIRP: Publish-Subscribe Internet Routing Paradigm Finland-ICSI Center for Novel Internet Architectures AwissNet: Ad-hoc PAN & WIreless Sensor SEcure NETwork

7. Security-Trust-Privacy Andrei Gurtov Adj. Prof.

8. 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 IPv4 and IPv6 applications and networks

9. Main Achievements Open-source implementation of Host Identity Protocol (HIPL) –Prevents eavesdropping and some DoS 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

10. Future Directions Internal HIP deployment in the group’s computers Secure VoIP architecture/demo using P2PSIP 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

11. Mobile Always-on Connectivity Jukka Manner Professor, PhD.

12. Research Challenges Decentralized IP host mobility in radio mesh networks Next generation network control signalling framework Congestion controlled datagrams (DCCP) for VoIP 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

13. Main Achievements Many IETF contributions World first high performance GIST implementation (C) A new RSS push service for the N800 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)

14. 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

15. Scalable Open Service Architectures Sasu Tarkoma Adj. Prof.

16. 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 YouTube 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 (OpenID) –Seamless Sign-On and easy identity bootstrapping

17. Main Achievements Middleware systems –Wireless SOAP, content-based router, XML- aware data synchronizer, mobile desktop search –Fuego and PDIS/S4All software used in other projects, also outside HIIT Contributions to W3C Efficient XML Interchange Working Group, WWRF Service Architecture Public demonstrations and presentations

18. Future Directions Publish/Subscribe Internet Routing Paradigm –Develop new protocol stack for pub/sub data-centric routing and forwarding in Internet scale –EU FP7 STREP project PSIRP coordinated by HIIT Data structures and algorithms for routing in overlay networks Peer-to-peer video-on-demand and video streaming –BitTorrent for browsers Mobile AJAX: Asynchronous mobile applications Social networks and incentives for peer-to-peer –Content-centric networking for social collaborative peer- to-peer web