21-08-2013, 01:02 PM
Security Issues and Challenges of Vehicular Ad Hoc Networks (VANET)
Security Issues and Challenges .pdf (Size: 792.54 KB / Downloads: 100)
Abstract
The security of Vehicular Ad Hoc Networks
(VANET) has mostly directed the attention of today
research efforts, while comprehensive solutions to protect
the network from adversary and attacks still need to be
improved, trying to reach a satisfactory level, for the
driver and manufacturer to achieve safety of life and
infotainment. The need for a robust VANET networks is
strongly dependent on their security and privacy features,
which will discussed in this paper.
VANET facing many challenges that been addressed in
this research, we also discuss a set of solutions presented
for these challenges and problems; and we made critics for
these solutions and proposed suitable solutions for some of
these problems.
BACKGROUND
The efforts to create safer, more comfortable and
efficient driving conditions have started, Vehicular
Networks will be the main player in this work, aiming to
enable road safety, efficient driving, and infotainment.
The world today is living a combat, and the battle field
lies on the roads, the estimated number of deaths is
about 1.2 million people yearly worldwide [1], and
injures about forty times of this number, without
forgetting that traffic congestion that makes a huge
waste of time and fuel [2].
The radio used for the communication is Dedicated
Short-Range Communications (DSRC), which been
allocated as new band in 1999 by the Federal
Communications Commission (FCC)[4], the band
allocated was 75 MHz at 5.9 GHz frequency for
Intelligent Transport System (ITS) applications in north
America.
Our paper presents in section 2 an analysis of VANET
Attack and Attackers to show the problems that VANET
facing, in section 3 we analyzed the VANET challenges
like mobility and privacy which considered the hardest
security problems of VANET, in section 4 we list the
security requirement that must exist to achieve the
security system, in section 5 we discussed the current
solution for the challenges and attacks and requirement
to achieve a secure system, that been addressed by other
papers and researchers, in section 6 we gave further
critics for the current solution, and proposed our
solution for some of these problems.
Vehicular Ad hoc Networks (VANET) is part of Mobile
Ad Hoc Networks (MANET), this means that every
node can move freely within the network coverage and
stay connected, each node can communicate with other
nodes in single hop or multi hop, and any node could be
Vehicle, Road Side Unit (RSU).
Replay Attack,
This attack happens when an attacker replay the
transmission of an earlier information to take advantage
of the situation of the message at time of sending [8].
Basic 802.11 security has no protection against replay. It
does not contain sequence numbers or timestamps.
Because of keys can be reused, it is possible to replay
stored messages with the same key without detection to
insert bogus messages into the system. Individual
packets must be authenticated, not just encrypted.
Packets must have timestamps.
The goal of such an attack would be to confuse the
authorities and possibly prevent identification of
vehicles in hit-and-run incidents [12].
CONCLUSIONS AND FUTURE WORK
Vehicular Ad Hoc Networks is an emerging and
promising technology, this technology is a fertile region
for attackers, who will try to challenge the network with
their malicious attacks. This paper gave a wide analysis
for the current challenges and solutions, and critics for
these solution, we also proposed a new solutions that
will help to maintain a securer VANET network, in the
future work we want to expand our idea about
certificates of the safety messages, how to be created,
discarded, and verified and test it by simulation.