A sensor network can have variety or diversity, since it can be easily defined
or modified to meet users needs. An increasing use of sensor-based medical
facilities might lead to increasing dependence on sensor networks and
consequently, greater risks. However, traditional security techniques can not
successfully provide an adequate answer. The current paper attempted to
propose a safer way of keeping security in processing a variety of medical
information. Considering the necessity and importance of the security of
sensor networks, we can easily expect the field to develop much further.