A Novel Authentication Scheme Based on Acceleration Data in WBAN
Node authentication is essential in wireless body area network (WBAN), as the data collected in the WBAN is important and closely related to the personal privacy especially in the health applications. Traditional authentication solutions usually require priori knowledge, advanced hardware or out-of-band channels, which are impractical for the WBAN, and the data-based authentication scheme has been proved to be a promising solution. In this paper, we propose a novel authentication scheme which uses acceleration information collected in the WBAN to determine whether a node is legal. The solution is achieved by exploiting the similarity in the acceleration data between the legal node and the node under authentication. Compared to other data-based authentication schemes, the proposed scheme is more practical, more accurate and with lower false positive rate (FPR).