8/12/2019 Sybil Solutions
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Solutions to Node Replication Attacks in Wireless
Sensor Networks: A Road Map
P. Raghu Vamsi and Krishna KantDepartment of Computer Science
and Engineering
Jaypee Institute of Information Technology, Noida, India.
[email protected], [email protected]
AbstractLimitations of sensor nodes such as lack of tamperproof
bodies, deployment in hostile and remote environments,resource
constraint nature, etc., made Wireless Sensor Networks(WSNs) prone
to a diversity of security attacks. Among thepotential attacks,
Sybil attack is a severe security threat in whicha malicious node
attempts to misrepresent its identity, positiondata and secret key
material to disrupt or gain control over thenetwork activities. To
mitigate this attack, numerous researchershave proposed a wide
variety of solutions. In this paper, theauthors provide a
discussion on the state-of-the-art solutionsto Sybil attacks. The
goal of this paper is to study the latestdevelopments and to
provide a road map for further research.
KeywordsSybil attack, Security attacks, Sensor nodes,
Wirelesssensor networks.
I. INTRODUCTION
A Wireless Sensor Network (WSN) consists of tiny andlow-cost
Sensor Nodes (SNs) that are often deployed in aremote and hostile
environments to monitor or sense an objector process of interest
[]. Basically, SNs are built without tamperproof bodies to reduce
commercial cost. In addition, they areresource constrained and uses
broadcast as communication
pattern. Due to such peculiar characteristics, it is an
easyundertaking to an adversary to change over a legitimate
nodeinto a malicious node by capturing and loading malicious
codeinto nodes chip. It is represented in [] that an adversary
cancapture and tamper a SN using some advanced tools withinone
minute. These tampered nodes exhibit deviated behaviorfrom regular
network operations which can lead to securityattacks. Among the
possible potential attacks, Sybil attacks isa severe threat in
which a compromised node misrepresentnode identity, location
information, secrete key material todisrupt or gain control over
the network activities. In addition,such tampered nodes can launch
security threats like sinkhole attack, black hole attack, on-off
attack, selfish behaviorattack, Grey hole attack, packet
modification attacks and can
launch Denial-of-Service (DoS) attack by jamming the
signals.Furthermore, a compromised node can create a wormholeby
combining with another powerful compromised node ina network [].
However, node capture and tamper is the entrypoint to all such
security attacks. Due to the inclemency of theproblem, identifying
and proposing solutions to detect Sybilattacks become an imperative
research paradigm in the WSNssecurity.
