Public key cryptosystem based security in wireless body area network

The wireless technology of electronics is growing day by day. Using this technology, real time medical data about patients' medical data can be collected by using simple wearable sensors based on a wireless body sensor network. A portable biomedicai system can be build based on the network types available, which can monitor the patient's health in real time. In this paper we developed light weight public key crypto system for security in wireless body sensor network and also the experimental results of proposed scheme on bio sensor nodes which shows the efficiency of our system in practice.