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VANET, Security and Trust

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Dr. Rajesh P Barnwal

The document discusses security issues and trust management in Vehicular Ad-Hoc Networks (VANETs). It outlines various security challenges in VANETs including handling malicious nodes, privacy, and message attacks. It also discusses approaches for trust establishment including infrastructure-based, self-organizing, and hybrid models. A case study is presented on a collaborative research project for a multi-source trust model to detect legitimate and spurious safety messages in VANETs.

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VANET SECURITY AND TRUST Seminar by Rajesh P Barnwal IIT-Kharagpur
PRESENTATION OUTLINE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
OUR ROAD’S CONDITIONS
CONSIDER THE SITUATIONS? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
THE ANSWER IS? ,[object Object]
WHAT IS VANET? ,[object Object],[object Object],[object Object],[object Object]
WHAT IS VANET? CONTD… (Picture from : http://pcquest.ciol.com/content/technology/2009/109020101.asp)
TYPICAL VANET SCENARIO (Picture from : http://www.cs.nthu.edu.tw/~jungchuk/research.html)
MOTIVATIONS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
APPLICATIONS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
APPLICATIONS CONTD… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MAJOR PLAYERS IN VANET RESEARCH
BOTTLENECKS IN DEPLOYMENT ,[object Object],[object Object],[object Object],[object Object]
MANET VS VANET ,[object Object],[object Object],[object Object],[object Object],[object Object]
COMPONENTS OF VANET ,[object Object],[object Object],[object Object],[object Object],[object Object]
COMMUNICATION IN VANET ,[object Object],Using DSRC/WAVE/802.11p Band: 5.850-5.925 GHz V2V, V2I communication Seven 10MHz wide channels Range 300 mtrs to 1000 mtrs Data Rate: 6-27 Mbps IEEE 1609.1 Upper Layer IEEE 1609.2 (Security Services) IEEE 1609.3 Network Layer IEEE 1609.4 Lower Layer IEEE 802.11p . Physical Medium
SECURITY ISSUES AND CHALLENGES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SECURITY AND TRUST ,[object Object],[object Object],[object Object]
WHAT IS TRUST? ,[object Object],[object Object],[object Object]
SIMPLIFIED VANET MODEL (Adopted from: Reference [5])
TRUST MANAGEMENT IN VANET ,[object Object],[object Object],[object Object],[object Object],[object Object]
CHALLENGES IN TRUST MANAGEMENT IN VANET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TRUST ESTABLISHMENT IN VANET ,[object Object],Trust Establishment Infrastructure Based Self Organising Centralised Direct Distributed Hybrid Indirect
TRUST MODELS IN VANET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
PROPERTIES OF A GOOD TRUST MODEL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CASE STUDY ,[object Object],[object Object],[object Object]
CASE STUDY CONTD… ,[object Object],[object Object],[object Object],[object Object],[object Object]
CASE STUDY CONTD… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CASE STUDY CONTD… (BASIC ASSUMPTIONS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CASE STUDY CONTD… ,[object Object],[object Object],[object Object],[object Object]
CASE STUDY CONTD… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CASE STUDY CONTD… ,[object Object],Vehicle A receives a new alert from Vehicle B Are RSU broadcasting the same alert? Is the Location Claim valid? Is the alert cryptographically correct? Do local sensors’ output match the alert Do other vehicle report relevant alert? Is CoE > threshold? Notify Driver Drop the Alert Drop the Alert Update CoE Wait for other Alerts No Yes No Yes No Yes Yes No Pass vehicle B’s trust level Reporting vehicle trustworthiness Update CoE Yes No No Decrease vehicle B’s trust level Was the Alert true? Increase vehicle B’s trust level Yes Notify the Driver Yes No
CASE STUDY CONTD… ,[object Object]
A STEP TOWARDS REALITY… ,[object Object],[object Object]
CONCLUSION ,[object Object],[object Object],[object Object],[object Object]
ANY QUESTIONS?
THANK YOU! With the hope to see VANET in real deployment…
REFERENCES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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