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Research Article

. 2013; 1(2): 134-142


VEBEK-Working & Functionalities

Aditya Shukla, Anurag Pandey, Saurabh Srivastava.


Abstract

Since the secure communication for Wireless Sensor Network (WSNs) is a challenging problem because sensors are resources limited and cost is the most dominant factor in a energy consumption, for this we introduce an energy-efficient Virtual Energy-Based Encryption and Keying (VEBEK) scheme for WSNs that reduces the number of transmission needed for rekeying the packets. VEBEK is a secure communication framework where sensed data is encoded by a RC4 encryption mechanism based on a permutation code generator. In the RC4 encryption mechanism keys changes dynamically as a function of the residual virtual energy of the sensor. Thus, one-time dynamic key is employed for one packet only and different keys for different packets. VEBEK unbundles key generation from other security services, namely authentication, integrity, non-repudiation. VEBEK is able to efficiently detect & filter false data injected by malicious outsiders. The VEBEK framework consists of two operational modes (VEBEK-1 and VEBEK-2). Our results show that VEBEK, without incurring transmission overhead is able to eliminate malicious data from the network in an energy efficient manner.

Key words: Authentication, RC4, rekeying, VEBEK, WSNs






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