Trusted computing in vehicular ad hoc network (VANET)

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Trusted Computing in Vehicular Ad hoc Network
(VANET)

• Dr I.A.Sumra

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• 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
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VANET Applications

• Safety Applications
• Non Safety Applications

Work Zone Warning!!!
Work Zone Warning!!!
Work in Progress Plz! use Alt. route
Shopping MALL ( TESCO )
Parking Slot Available!!!
Parking Slot Available!!!
RSU
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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.

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Component Behavior

• User Behavior
• Node Behavior
• Road Side Unit (RSU) Behavior

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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.

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Smart vehicle and Security Hardware Modules

• ? Tamper Proof Device (TPD)
• ? Event Data Recorder (EDR)
• ? Trusted Platform Module (TPM)
• ? Global Position System (GPS)
• ? Radar Systems (RSs)
• ? Communication Facility (CF)
• ? Computing Platform (CP)
• ? Human Machine Interface (HMI)

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Trusted Platform Module (TPM)

• Trusted Platform Module is a hardware module
  designed for secure computing and can be
  integrated into any device for example in
  notebook.
• TPM is a piece of hardware and need software to
  communicate with it to protect and store data in
  secure location. It can resist software attacks
  but problem is that it cannot control hardware
  tempering.

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Trust between TPMs and Vehicle Sensors
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TPM ensure the behavior of the entities in VANET
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Vehicular Property Based Attestation Protocol
(VPP)

• The proposed protocol is also based on the PBA
  protocol which provides attestation on some
  security properties in a vehicular environment.
  We view that attestation is critically necessary
  for vehicles and RSU trusted platforms.
• In this proposed protocol, the focus is mainly on
  properties making attestation on the basis of the
  required properties only which should be dynamic
  and may consist of security, trust or privacy
  properties. If users conform to the required
  properties for using the applications or
  services, then they would be allowed to become a
  part of the network and use the services.

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Vehicular Property Based Attestation Protocol
(VPP)
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Conclusion

• Trusted computing ensures security and trust in a
  vehicular environment. The TPM is the key module
  of a trusted computing group (TCG) and plays a
  key role for the security of a platform.
• The attestation mechanism is to ensure the
  security of the platform and the Property based
  attestation is one of the possible attestation
  mechanisms used to attest platforms on the basis
  of some particular properties.
• In this paper, a protocol has been proposed and
  this protocol is based on the property based
  attestation (PBA).The purpose of using this
  attestation method in a vehicular network is due
  to its dynamic behavior and the high mobility of
  the network node.

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• Please download complete paper from
• IEEEE website
• ResearchGate

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