Research Article
Challenges of Implementing Cyber-Physical Security Solutions in Body Area Networks
@INPROCEEDINGS{10.4108/ICST.BODYNETS2009.6031, author={A. Banerjee and K. Venkatasubramanian and Sandeep K.S. Gupta}, title={Challenges of Implementing Cyber-Physical Security Solutions in Body Area Networks}, proceedings={4th International ICST Conference on Body Area Networks}, publisher={ICST}, proceedings_a={BODYNETS}, year={2010}, month={5}, keywords={}, doi={10.4108/ICST.BODYNETS2009.6031} }- A. Banerjee
K. Venkatasubramanian
Sandeep K.S. Gupta
Year: 2010
Challenges of Implementing Cyber-Physical Security Solutions in Body Area Networks
BODYNETS
ICST
DOI: 10.4108/ICST.BODYNETS2009.6031
Abstract
Cyber-physical approach to securing Body Area Networks (BANs) provides solutions that are plug-n-play and trans- parent to its users. These Cyber-Physical Security Solutions (CPSS) actively involve characteristics from the physical en- vironment. As a result they require a combination of signal processing (to extract features from the physical environ- ment) and security primitives to function. In this paper we outline some of our experiences while implementing Plethys- mogram based Key Agreement (PKA) - a CPSS - that uses Photoplethysmogram (PPG) based features for key agree- ment. Given the limited capabilities (computation, memory, power) of individual sensor nodes in a BAN, implementing CPSS for them is challenging. We therefore design Field Programmable Gate Array (FPGA) based hardware add-on for sensor nodes in a BAN, dedicated to execute PKA. The main contributions of this work are: 1) description of our experiences in implementation of PKA on FPGA platform; 2) identifcation of the design goals and trade-offs for vali- dating implementation of CPSS; and 3) a discussion on the feasibility of a software implementation of PKA based on our experience gained from the FPGA prototyping.
