Hybrid Encryption Algorithm in Wireless Body Area Networks (WBAN)

The wireless body area network is part of wireless sensor network in which both indoor and outdoor patients are monitored using sensors and wireless technology. The critical phase of monitoring is transmission of real time data from remote location to hospital community cloud, when patients outside the hospital at some remote location and is connected hospital cloud using Internet connection. So there is need to encrypt the data collected by sensor from patient before transmission. The paper is presenting the new concept, hybrid encryption algorithm (HEA) that is suitable for ad hoc as well as for wired networks also. The algorithm not only considers security of data but also the various constraints of sensor networks like battery power, bandwidth, limited processing capability, dynamic topology.