Timing Attack in Vehicular Network

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VANET Security Research Group (VSRG)
Timing Attack in Vehicular Network

• Dr I.A.Sumra

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Overview

• Introduction
• VANET Applications and Time Requirements
• Delay Types in VANET
• Possible Timing Attack in VANET Problem due to
  Timing Attack Conclusion and Future Work
• References
• QA

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Introduction

• 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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VANET Applications and Time Requirements

• In safety message, time and contents of the
  message are both important. Right information
  must be received the users in right time, this is
  basic requirement of the safety applications.
• Warning applications provide information about
  warning messages and these messages are time
  critical and its importance is also high for
  safety of human life.
• If an attacker creates delay in it then it could
  result in very serious tragedy on the road and
  many accidents may occur due to this.

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Delay Types in VANET

• Congestion Delay
• High mobility of vehicle, dynamic topology and
  high rate of vehicles on road are the reasons for
  increasing number of issues of congestion in
  VANET.
• Large numbers of vehicles on road and each
  vehicle sending, receiving safety and non safety
  messages, may consequently result in the network
  becoming overloaded and congested.
• Routing Delay
• There are many routing protocols that are used
  for sending messages from source to destination
  by using of different hops.
• A-STAR, MDDV, VADD and DGRP are some of routing
  protocol has the drawback of generating maximum
  delay while sending packet from source to
  destination. Edge Node Based Greedy Routing
  Algorithm (EBGR) protocol has been proposed to
  mitigate this issue by reducing packet
  transmission delay in VANET.

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Possible Timing Attack in VANET
Vehicle-to-Vehicle (V2V) Timing Attack
Basic Level Attack
(a) Before Peer to Peer (P2P) timing Attack
(b) After Peer to Peer (P2P) timing Attack
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Possible Timing Attack in VANET

• Extended Level Attack
• In extended level attack more than one user would
  be affected due to timing attack.
• attacker launches timing attack using a multicast
  technique in which attacker targets a specific
  group of vehicles.

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Timing attack in Vehicle to infrastructure (V2I)
Communication

• Case One Timing Attack for Authentication

(a) Timing Attack for authentication
(b) Timing Attack for authentication
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Case Two Timing Attack for Taking Services

• Timing attack for taking services from different
  RSUs

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Problem due to Timing Attack

• Data Redundancy
• In timing attacks, the users receive multiple
  copies of same message in different time slots,
  which pose data redundancy issues.
• t2.L2 gt t1.L1 (1)

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Conclusion

• Security is one of the key challenges in
  vehicular network.
• In this paper we have discussed some issues
  related to timing attack on vehicular network.
  This is newly address problem and need attention
  to researcher to provide solution.
• In future work we will some possible solution may
  be based on digital signature and trusted
  platform module (TPM) to maintain the integrity
  of the messages in vehicular network and overcome
  timing attacks.

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Thank you..
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