Abstract
As wireless sensor networks continue to grow, so does the need for effective security mechanisms. Because sensor networks may interact with sensitive data and / or operate in hostile unattended environments, it is imperative that these security concerns be addressed from the beginning of the system design. However, due to inherent resource and computing constraints, security in sensor networks poses different challenges than traditional network/computer security. Recently, many real-time routing protocols have been proposed, but none is designed with security as a goal. This paper proposes a novel secure enhancement for real-time routing protocol that provides secure real time data in WSN. The proposed security countermeasures HELLO flooding and selective forwarding attacks. It ensures high packet throughput and minimized power consumption in the present of adversary nodes.