Energy efficient and cost effective secure node localization with key management in wireless sensor networks

Wireless Sensor Network has a wide range of application in the field military operation, tracking, and data acquisition in hazardous environments. It is a vital and essential thing to guarantee the security and resilience of sensor networks. The wireless sensor node localization plays an important role for collecting meaningful information from an exact location. During node localization process security is a vital issue to protect the data losses from unauthorised person. In this research work, we introduce efficient and effective secure node localization and a dynamic key management solution for wireless sensor networks. In this scheme we present secure node authentication with distance measurement and we call secure information verification by malicious node cleaning. Also we present key management schemes; it is assumed that key information is stored in very powerful and reliable sensor node and not in individual nodes. It is an important issue for protecting the powerful node by which the sensor network can be made secure, energy efficient and cost effective because moving anchor node plays a major role during localization process.