A typical wireless sensor network consists of several tiny and low-power sensors which use radio frequencies to perform distributed sensing tasks. These nodes often have very limited and non-renewable energy resources, which makes energy as crucial design issue for these networks. Routing is another very important design issue for WSNs. A well designed routing protocol should balance the entire sensor network energy consumption along with high message delivery ratio and low energy consumption for message delivery, thereby extending the sensor network lifetime. So we have proposed the Active Trust technique is adopted to avoids black holes through the active creation a number of detection routes to quickly detect and obtain nodal trust and thus improve the data route security. In the trust management scheme, the trust model has two components: trust from direct observation and trust from indirect observation that proposed security in WSN. Finally we have proposed the Active Trust scheme fully uses residue energy to construct multiple detection routes. In this paper, we tend to propose a secure and efficient Cost-Aware Secure Routing (CASER) protocol which will address energy balance and routing security at the same time in WSNs. To enhance these project Hybrid cost ware secure routing algorithm implemented to proliferate lifetime of the network.

Keywords- Delivery Ratio, Efficiency, Energy Balance, Routing, security, Simulation