Wireless Ad hoc Body Area Networks are primarily used in health-care applications for patient monitoring purposes. Publisher-Subscriber driven Body Area Networks enable publishers (medical sensors attached to patients) to disseminate medical data to numerous mobile heterogeneous subscribers (doctors or caregivers) through a subscription mechanism. Such an environment raises serious security concerns due to the privacy critical medical data coupled with the resource constraints of individual body sensors. To address this problem, we present an identity based key management scheme using Identity-Based Encryption (IBE). IBE facilitates faster key set-up in addition to being lightweight and energy-efficient. The proposed scheme uses IBE to set up pair-wise symmetric keys to preserve data confidentiality and integrity. Our prototype and evaluation of the proposed model validate the approach.
S. Sankaran, Husain, M. Iftekhar, and Sridhar, R., “IDKEYMAN: An Identity-Based Key Management Scheme for Wireless Ad Hoc Body Area Networks”, Proceedings of Annual Symposium on Information Assurance (ASIA). 2009.