1. DTN, ONE & Our Plan Yuan JIN Sept. 17, 2008

2. Outline Objective Introduction to DTN Demo of ONE Introduction to ONE Our (current) work

3. Objective Based on DTN ONE simulator, we want to propose and implement a low-overhead security scheme to resist attacks like Flooding, Blackhole, Rushing, Wormhole and “Strong attacks”. Go back >>

4. Introduction to DTN What is DTN? What are its features? (What are differences from other Networks?) What is the catch (right now)?

5. What is DTN? Delay-Tolerant Networks or Disruption-Tolerant Networks is “an approach to computer network architecture that seeks to address the technical issues in mobile or extreme environments, such as deep-space, that lack continuous network connectivity.” [Wiki]Wiki See real life example about 10 minsKioskNet of Waterloo

6. What are its features? Small in size Discontinuous Store-and-forward Multiple routing paths Lack of instantaneous end-to-end paths Ad-hoc topology [Wiki]Wiki

7. What is the catch? Ad-hoc? So, Security – No real implementation of any security scheme on DTN so far – If proposed, draft-irtf-dtnrg-bundle-security-03 for example, it is very heavy-weighteddraft-irtf-dtnrg-bundle-security-03 – Unable to handle different kinds of hazards And our proposal would >>

8. Demo of ONE Click the tree to start ONE

9. Introduction to ONE Overview Structure, Classes & Relations

10. Overview of ONE Opportunistic Network Environment A GPL-licensed Java implementation of DTN protocols Download Written by Ari Keränen of DTN TKK Lab of Helsinki University of TechnologyDTN TKK Lab

11. Classes of ONE Primary Classes – DTNSimGUI – DTNHost – Message – MovementModel – NetworkLayer, Connection – MessageRouter – SimScenario, Settings – World – Report How do they work? How do they work?

12. Structure & Relations of ONE DTNHost/ MessageRouter NetworkLayer Connection MovementModel

13. Our work Prove several attacks, i.e. flooding, blackhole, rushing, wormhole and “strong attack”, are influential to the network Propose a scheme based on Zhong Xu’s EISM Prove it works