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Forming Vehicular Web of Trust in VANET

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Irshadsumra
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Forming Vehicular Web of Trust in VANET

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  1. VANET Security Research Group (VSRG) N E T A V Dr I.A.Sumra Forming Vehicular Web of Trust in VANET

  2. Overview • Introduction • Requirement of Trust in P2P Vehicular network • Properties and components of Trust in Vehicular Network • Proposed Trust Levels • Types of TRUST in Vehicular Network • Conclusion • References • Q&A 2

  3. V A E T N • Vehicular ad-hoc network is a special kind of network in which nodes (Vehicles) can communicate with each other on the road and with its Infrastructure. V2I Road Side Unit (RSU) V2V V2V Basic VANET Architecture 3

  4. Safety Applications Non Safety Applications VANET Applications Work Zone Warning:!!! Work Zone Warning:!!! Work in Progress Plz! use Alt. route Shopping MALL ( TESCO ) Parking Slot Available!!! RSU Parking Slot Available!!! 4

  5. Trust • “an entity can be trusted if it always behaves in the expected manner for intended purpose”. • all components of the network (vehicles and infrastructure) are behaving in an expected manner • (secure communication between the components) and serve the users and save human lives. Change the behavior Attacker

  6. Component Behavior • User Behavior • Node Behavior • Road Side Unit (RSU) Behavior

  7. Security and Trust • Security is one of the most important issues in vehicular network. Applications of vehicular network should be secure and user receives right information while traversing along their journey. • Trust is also a key component of security and trust is governs the behavior all components in the network which must behave in the expected manner. • User, vehicle and road side unit (RSU) are some components of trusted vehicular network. If any of these components of network unexpectedly change their behavior then it would signify that there is a breach of trust in the network.

  8. Requirement of Trust in P2P Vehicular network • What is TRUST : “A system or component that behaves in expected manner for the particular purpose” . • TRUST in VANET : All components of the network (user, vehicles and infrastructure) are behaving in an expected manner (trusted communication between the components) and serve users which subsequently would save human lives.

  9. Properties and components of Trust in Vehicular Network • Context Dependence • Function of Uncertainty • Quantitative Values • Transitivity • Asymmetry • Personalization Components of TRUST in Vehicular Network

  10. PROPOSED WEB OF TRUST MODEL • In the proposed Vehicular Web of TRUST (VWT) environment the each vehicle possess a Trust Module with a TPM hardware module inside the vehicle.

  11. Levels of TRUST 1. Trust between TPMs and Vehicle Sensors 2. Trusted Medium (DSRC) 3. Trust between Vehicle to Vehicle (V2V) 4. Trust between Vehicle to Infrastructure (V2I)

  12. Levels of TRUST • Trust between TPMs and Vehicle Sensors

  13. Levels of TRUST 2. Trusted Medium (DSRC) • At the second level, the role of the medium is important, dedicated short range communication (DSRC) frequency band is used for all types of communication in VANET. • DSRC provides multiple channels and its transmission ranges from 5.850 to 5.925 GHz. DSRC are divided into seven channels and each channel range is 10 MHz. • Every vehicle in the network receives messages from other vehicles or from infrastructure. A secure and trusted content of message is the major concern of the users.

  14. Levels of TRUST • 3. Trust between Vehicle to Vehicle (V2V)

  15. Levels of TRUST 4. Trust between Vehicle to Infrastructure (V2I)

  16. Direct Anonymous Attestation (DAA) • DAA is a digital group signature scheme and it was originated by Brickell, Camenisch and Chen. • It provides the facility to a third party to validate the TPM, and check whether the user platform is genuine. • In VANET environment, DAA can be considered for attesting a vehicle platform, and at the same time protecting the privacy of the user. Using of DAA we can develop the four level of trust in vehicular communication.

  17. Conclusion • Reducing the death rate, avoiding congestion on roads and makes comfortable journey some of key objective of vehicular network. • Security and trust are becoming increasingly key challenges issues in vehicular network. • TPM hardware module is the key module of trusted computing and that supports to develop trust in vehicular communication environment. • In this paper we have presented new model for web of trust within vehicular network and this model are based on four level of trust.

  18. Please download complete paper from • IEEEE website • ResearchGate 18

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