International Journal of Engineering and Technology
A sensor network is composed of a large number of sensor nodes that are densely deployed either inside the phenomenon of very close to it. The wireless communication employed by sensor network facilitates eavesdropping and packet injection by an adversary. Therefore security must be provided for sensor network to ensure secrecy of sensitive data. To achieve security, keys must be agreed upon by communication nodes. The main task is to safely distribute the shared keys to the sensor nodes.