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Sensor networks consist of tiny sensor nodes which are responsible for sensing, data processing, and sending the collected data to the appropriate destination. Sensor networks are plagued by many security problems but since they operate at very limited energy resources; consequently cryptographic techniques implemented by general wired networks are not feasible. As such, we need to approach the security related problems with a different perspective which dissents from regular network security algorithms. In our proposal we attempt to devise a technique which consumes lesser amount of energy to maintain security measures in sensor networks. The technique introduced in this paper utilizes two basic techniques and merges them to yield a low energy consuming process which renders more effective security services.