In this Slide, the role of the end user in a vehicular network will be discussed in detail and three levels of trust grades for users will be proposed. It is necessary for secure vehicular communication that the user’s role in the network should be in a positive direction, and other users should take more benefits from this new future technology.

1. Using the Grades Mechanism to
Differentiate the Users in
Vehicular Ad hoc Network (VANET)
Dr I.A.Sumra

2.  End user is the key module of a future vehicular
network and safety and non safety applications
mostly focuses on the user’s safety and comfortable
during the journey.
 Security of these applications are very significant
and these life saving messages cannot be altered by
any attacker.
 In this slide, the role of the end user in a vehicular
network will be discussed in detail and three levels
of trust grades for users will be proposed.
 It is necessary for secure vehicular communication
that the user’s role in the network should be in a
positive direction, and other users should take more
benefits from this new future technology.
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3.  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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4.  Safety Applications
 Non Safety Applications
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5.  Role of end user is most important in VANET and
objective of VANET applications to serve the users
and reduces the death rate due to road accident.
Car manufacturers provide smart vehicles while
government agencies provide the basic
infrastructure needed to implement applications
and serve the users.
 VANET applications and smart vehicles are major
modules and users directly communicate with them
and send and receive safety and non safety
messages.
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7.  User is the main entity in vehicular work and objective of
this new technology is to serve users and safe their lives
from road accidents.
 Safety and non safety VANET applications meet the all
users requirement during their journey like send or receive
safety message to other vehicles and use the
entertainment services.
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10.  Users are important entities in a network and the purpose of
VANET applications to serve the end user and provide safety
on the highway.
 Applications serve the end users when these applications are
secured and user should be trusted, otherwise these
applications create more problems for users of the network.
 Good or bad user always remains part of the network and it is
difficult to predict his/her behavior on the road due to the
dynamic topology of the network.
 Therefore, trust grades for vehicular users have been
proposed and objective of these grades to differentiate
between good users and malicious users in a network. The
Figure.3 shows the Trust grades for End Users.
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12.  Zero Trusted User (ZTU) (Attackers) – Trust Grade (0)
 Zero Trusted Users (ZTUs) are those users that do not possess
the trusted credentials and could potentially be the kind of
attackers who create problems for legitimate users by
launching some type of attack.
 In the vehicular network, their role is more prominent
because they can potentially change the life critical
information on the road. All types of attackers which we have
discussed in related work is also considered in zero trusted
users.
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13. Zero Trusted Users (ZTUs)-
[Trust Grade-0]
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14.  These people are not attackers, but their behavior indirectly
effects the main functionality of network. These are the factors
that change the behavior of the users and assign weak trusted
users.
 The Figure 6 describes weak users’ type and we have assigned
the one grade to these types of users.
Weak Trusted User (WTU) –
[Trust Grade-1]
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15.  Strong Trusted Users (STUs) are those people who perform their tasks properly and
achieve the security requirements in the network.
 Security requirements are important factor for all components of vehicular
network, so every module should be secured and work properly to serve the users.
Applications and other modules should be fulfilling the maximum levels of security
requirements.
Strong Trusted User (STU) –
[Trust Grade-2]
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16.  End users require more safety on the road in future
vehicular networks and this could be possible by the
successful implementing of VANET in real environment with
its potential applications.
 Vehicular applications must be secured; if non-trusted
users (attackers) change the content of safety applications
then other users are directly effected.
 Attackers change their attacking behavior and they launch
different attacks at different times.
 The proposed trust grades of attackers are expected to be
helpful to identify and understand the behavior of
different types of users.
 The Implementation of this future human life saving
network could be easy if users play their positive roles and
make secure communications.
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17.  This is journal research paper and please
download complete research paper from
research gate.
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