Channel Information based Cryptography and Authentication in Wireless Body Area Networks

Wireless Body Area Networks (WBANs) are the core of components of future m-Health system and is playing a crucial role in healthcare applications. A key requirement for such applications is secure communications between body sensors. This paper presents a novel key agreement scheme which allows wireless body sensors in WBANs to share a common key generated using wireless channel information. Unlike traditional biometric based security approach, the proposed key agreement does not need extra hardware, which can secure data communications in a plug-n-play manner. Our experimental results show that the proposed scheme is feasible for WBANs.

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