Hardware plays more important role to provide a security in vehicular environment. In this paper we do comparative study of three basic security hardware modules (Event Data Recorder, Tamper Proof Device and Trusted Platform Module). There are many parameters for selecting the security modules but cost is the most important one. Automotive industry plays vital role to resolve the cost issue and make it easier for commercial users to adopt a new vehicular technology.

1. Dr I.A.Sumra

2.  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.
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V2I
Introduction

3.  Safety Applications
 Non Safety Applications
Work
in Progress
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route
Work Zone
Warning:!!!
Work Zone
Warning:!!!
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Parking Slot
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4.  Vehicular network applications require security and the objective of these applications is to
serve users and make their journey secure and comfortable.
 Attackers have their own role in this network and we cannot predict the dynamic behavior of the
attacker. If an attacker works on a safety application and changes the content of the safety
message then it poses a very difficult condition on the road and many users will be affected due
to this kind of attack.
 Accidents are often the result of an alteration of any safety message or the sending of even one
wrong safety message in a network and many human lives are at risk [1].

5.  Network Behavior

6.  Attacker Behavior

9. • Monitoring Attack
• Traffic Analysis Attack
• Man in the Middle (MiMA) Attack

10. Message Alteration Attack
Message Fabrication Attack
Incorrect Data Injecting Attack

12.  DENIAL OF SERVICE (DOS)
 In VANET, DOS shall not be allowed to happen, where
seamless life critical information must reach its
intended destination securely and timely. In summary,
there are three ways the attackers may achieve DOS
attacks.
 There are three levels of DOS attacks as described
below.
1. Basic Level: Overwhelm the Node Resources
2. Extended Level: Jamming the Channel

13.  Basic Level: Overwhelm the Node Resources

14.  Extended Level: Jamming the Channel

18. 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)

20.  Event Data Recorder [7] is non volatile hardware module and
provides tamper proof storage.
 The purpose of this module is to maintain the log of any
critical events and later to use this information. It is similar to
black box used in airplane.

21.  There are two problems in EDR.
 1.) it does not generate any data.
 2.) it does not have any ability to encrypt the
messages. The researchers added one more
module to meet these two requirements. The
next module is Temper Proof Device (TPD).

22.  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.

24.  Security is an important issue of VANET as it deals
with traffic system and human lives directly. In near
future VANET will be on road and their potential
applications will be providing safety to users.
 In this slide, we presented security requirements and
then discussed in detail about security hardware
modules that are used in smart vehicle.
 The lower cost of these modules and their right
functionality in vehicular environment will make the
implementation of this technology easier.

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26.  Please download complete research paper from
research gate.
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