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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 permutationdoi:10.9790/0661-0933443 fatcat:ffhgpdwgpfaqtfxgq7isihcoey