NDLI: An improved AES-ECC hybrid encryption scheme for secure communication in cooperative diversity based Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Ganesh, A.R. Manikandan, P.N. Sethu, S.P. Sundararajan, R. Pargunarajan, K.
Copyright Year	2011
Description	Author affiliation: Department of ECE, Amrita Vishwa Vidyapeetham, Coimbatore, India (Ganesh, A.R.; Manikandan, P.N.; Sethu, S.P.; Sundararajan, R.; Pargunarajan, K.)
Abstract	Security of Wireless Sensor Networks (WSNs) is a very crucial factor when deployed for reconnaissance in sensitive areas. The existing symmetric encryption schemes provide a good amount of security, but maintenance of keys is difficult. When asymmetric schemes are used, maintenance of keys is easier, but they provide a lesser degree of security when compared to symmetric encryption schemes. In order to cope up with these shortcomings, we propose to use an improved version of the hybrid encryption scheme, which is a combination of Advanced Encryption Standard (AES) and Elliptical Curve Cryptography (ECC) with cross encrypted keys for secure key exchange and node authentication and hybrid encryption for enhanced cipher-text security. In case of transmission in WSNs, Statistical Cooperative Diversity based on Alamouti code is the most commonly used transmission scheme. However, for an arbitrary number of sensors, Alamouti code limits the BER performance and energy is not distributed equally, thereby creating the energy-hole problem which leads to early dysfunction of the sensors and may eventually lead to dysfunction of the Wireless Sensor Network (WSN). Extended Cooperative Space-time Block Codes (ECBSTBCs), which are obtained from Alamouti code, have the same characteristics of Alamouti code with the energy being distributed equally among the active sensors. With these factors in mind, we propose to use ECBSTBC as the transmission scheme. The improved hybrid scheme is ideal for ECBSTBC based WSN due to the speed of operation and higher degree of security that it offers.
Starting Page	1209
Ending Page	1214
File Size	237648
Page Count	6
File Format	PDF
ISBN	9781457705885
e-ISBN	9781457705908
DOI	10.1109/ICRTIT.2011.5972351
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-03
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Elliptic curve cryptography Sensors Encryption Hybrid encryption Cooperative Diversity Space-time block codes
Content Type	Text
Resource Type	Article

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