Security in Wireless Sensor Network (WSN)

General objective of this lecture is to describe on Security in Wireless Sensor Network (WSN). WSN consists of spatially distributed autonomous sensor nodes to monitor physical or environmental conditions, such as temperature, sound, pressure, motion or pollutants and to cooperatively pass their data through the network to a main location. Here also briefly explain Threats to WSN, WSN operational paradigms, Key distribution techniques for WSN and Various key distribution schemes.