Body area network security: Robust key establishment using human body channel

Sang Yoon Chang, Yih Chun Hu, Hans Anderson, Ting Fu, Evelyn Y.L. Huang

Research output: Contribution to conferencePaperpeer-review

Abstract

In order for two sensors within a body area network to determine they are on the same body, e.g., for security purposes, extensive prior work considers the use of physiological values. We study the practicality of using body physiological values for securely exchanging messages for sharing keys. Due to its popularity in the literature, we use electrocardiography (ECG) signals, and show that cardiac physiology is incompatible with such schemes, due to the sensitivity to a node’s deployment location on the body and the outsiders’ capability to remotely sense the physiological value. As a solution for key sharing, we inject an artificial voltage signal to build a communication channel secure against an outsider. By implementing our scheme on a dead mouse and analyzing the human body channel characteristic with empirical data, we demonstrate the practicality of our scheme for body area network applications.

Original languageEnglish (US)
StatePublished - 2012
Event3rd USENIX Workshop on Health Security and Privacy, HealthSec 2012, co-located with the 21st USENIX Security Symposium - Bellevue, United States
Duration: Aug 6 2012Aug 7 2012

Conference

Conference3rd USENIX Workshop on Health Security and Privacy, HealthSec 2012, co-located with the 21st USENIX Security Symposium
Country/TerritoryUnited States
CityBellevue
Period8/6/128/7/12

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Safety, Risk, Reliability and Quality
  • Health Informatics
  • Health Policy

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