Abstract—Secure communication is one of the most critical
challenging tasks in multi-hop Wireless Sensor Networks
(WSNs). Routing protocols of WSNs are highly susceptible to
various attacks, which replay the routing information through
the malicious node and steal the identities of the valid nodes in a
network. The malicious nodes forward the packets far away
from the sink, increasing the packet drop ratio, that sluggishes
overall network efficiency. In order to overcome this problem,
we have designed and implemented a secure trust aware energy
efficient adaptive routing (STEAR) for dynamic WSNs. This
protocol provides secure, trustworthy and energy efficient
routing for multihop networks. STEAR is designed with
effective mechanisms to identify the malicious nodes using
dynamic secret key (DSK) assignment, trust and energy
monitoring, and packets flow status monitoring. Simulation
results show that network efficiency and throughput are better
and packet drop ratio is reduced compared to earlier works.
Index Terms—Dynamic secret key (DSK), energy monitor,
secure communication, trust monitor, WSNs.
B. M. Thippeswamy is with the Department of Computer Science and
Engineering, Jawaharlal Nehru Technological University, Anantpur, India
(e-mail: bmtswamy@rediffmail.com).
S. Reshma, K. Shaila, and K. R. Venugopal are with the Department of
Computer Science and Engineering, University Visvesvaraya College of
Engineering, Bangalore University, Bangalore, India (e-mail:
Reshma229@in.com, shaila_ks@yahoo.com, venugopalkr@gmail.com).
V. Tejaswi is with the NIT, Suratkal, India (e-mail:
tejaswikrv@gmail.com).
L. M. Patnaik is with the Indian Institute of Science, Bangalore, India
(e-mail: lalitbr@gmail.com).
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Cite:B. M. Thippeswamy, S. Reshma, V. Tejaswi, K. Shaila, K. R. Venugopal, and L. M. Patnaik, "STEAR: Secure Trust-Aware Energy-Efficient Adaptive Routing in Wireless Sensor Networks," Journal of Advances in Computer Networks vol. 3, no. 2, pp. 146-149, 2015.