A Key Management Scheme between Body Sensor Networks and the Base Station

In general application scenarios, physiological signals collected by body sensor networks will be delivered to a base station in the medical center for further processing. In this process, the communication between body sensor networks and the base station should be protected for individual´s privacy. However, many existing related researches ignored the security requirement in the communication, or merely mentioned that traditional secure mechanisms schemes can be used to secure the communication. In the paper, we applied the Tree Parity Machine model and biometric data extracted from physiological signals to construct a new key management scheme for securing the communication. Analyses show that the new key management scheme has superiority in terms of efficiency and security.