A Trust System for SCADA Network Using Wireless Sensor Based on Node Behaviors

This paper discuss about the communication security device called a trust system through wireless sensor network based on node behaviors. The major goal of the trust system is to increase the security efficiency compared to firewall and also apply a novel trust evaluation algorithm defined a NBEA (Node Behavior Evaluation Algorithm).This paper concentrates on placing the trust system at the border context which creates anew trust system that increases the flexibility and also demonstrates the trust system using TCP/IP router. The main discuss in the following ways: 1) Summarizes the major threats against SCADA systems.2) Discusses about the new trust system which implements a wider array of network enabled equiqment.3) Impact of the trust system through TP/IP network communication between node and other behaviors. 4) As wireless sensors network are being vulnerable and to be attacked and also compromised. In order to avoid network problem a trust evaluation algorithm is defined as NBEA (Node Behavior Evaluation Algorithm) proposed, which integrate behavior strategy.