Authenticated Key Establishment Protocols for a Home Health Care System
MetadataShow full item record
Wireless sensor networks provide solutions to a range of monitoring problems. However, they also introduce a new set of problems mainly due to small memories, weak processors, limited energy and small packet size. Thus only a very few conventional protocols can readily be used in sensor networks. Sensor networks can exist in many different environments, and each environment has its own unique characteristics and requirements. As an example application, a home health care system is proposed and examined in detail in this paper. We show how cryptographically weak physiological data can be used to establish keys between body sensors, where the sensors have no other prior secret. This paper also proposes a protocol where a hand held device, such as a PDA, can establish a key with the majority of sensors found in our home health care system. This is achieved without the necessity of using traditional encryption. Detailed analysis of each of the protocols is provided. The protocols were implemented in TinyOS and simulated using TOSSIM and ATEMU. Energy consumption and memory requirements are analysed and it was found that an RSA implementation of our protocols has some advantages over an ECC implementation.
Proceedings of the 2007 International Conference on Intelligent Sensors, Sensor Networks and Information Processing
Copyright 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
HISTORY AND ARCHAEOLOGY