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Wireless sensor networks are often placed in an open environment and are susceptible to various attacks. Traditional cryptography methods are not effectual in WSNs. Trust management has been proved to be an effective measure to enhance security as well as to handle threats for WSNs. In this paper, TBE-LEACH, an improvement in LEACH protocol has been proposed by introducing trust to provide secure routing. The simulation results demonstrate that proposed scheme is better in terms of network lifetime and energy consumption.