title: Design and implementation of a secure wireless mote-based medical sensor network.
abstract: A medical sensor network can wirelessly monitor vital signs of humans, making it useful for long-term health care without sacrificing patient comfort and mobility. For such a network to be viable, its design must protect data privacy and authenticity given that medical data are highly sensitive. We identify the unique security challenges of such a sensor network and propose a set of resource-efficient mechanisms to address these challenges. Our solution includes (1) a novel two-tier scheme for verifying the authenticity of patient data, (2) a secure key agreement protocol to set up shared keys between sensor nodes and base stations, and (3) symmetric encryption/decryption for protecting data confidentiality and integrity. We have implemented the proposed mechanisms on a wireless mote platform, and our results confirm their feasibility.
authors.affiliation: Department of Computer Science, University of Memphis, 209 Dunn Hall, Memphis, TN 38152-3240, USA; E-Mail:  kmalasri@memphis.edu  (K.M.).
authors.forename: Kriangsiri
authors.initials: K
authors.lastname: Malasri
authors.forename: Lan
authors.initials: L
authors.lastname: Wang