2nd International ICST Conference on Body Area Networks

Research Article

Delay aware, reconfigurable security for embedded systems

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  • @INPROCEEDINGS{10.4108/bodynets.2007.172,
        author={Tammara Massey and Philip Brisk and Foad Dabiri and Majid Sarrafzadeh},
        title={Delay aware, reconfigurable security for embedded systems},
        proceedings={2nd International ICST Conference on Body Area Networks},
        publisher={ICST},
        proceedings_a={BODYNETS},
        year={2007},
        month={6},
        keywords={Performance evaluation security embedded systems body area networks medical applications adaptable systems.},
        doi={10.4108/bodynets.2007.172}
    }
    
  • Tammara Massey
    Philip Brisk
    Foad Dabiri
    Majid Sarrafzadeh
    Year: 2007
    Delay aware, reconfigurable security for embedded systems
    BODYNETS
    ICST
    DOI: 10.4108/bodynets.2007.172
Tammara Massey1,*, Philip Brisk2,*, Foad Dabiri3,*, Majid Sarrafzadeh4,*
  • 1: University of California, Los Angeles 3456N Boelter Hall Los Angeles, CA 90095
  • 2: Ecole Polytechnique Federal de Lausanne Lausanne, Switzerland, CH-1015
  • 3: University of California, Los Angeles 3514 Boelter Hall Los Angeles, CA 90095
  • 4: University of California, Los Angeles 3532C Boelter Hall Los Angeles, CA 90095
*Contact email: tmassey@cs.ucla.edu, philip.brisk@epfl.ch, dabiri@cs.ucla.edu, majid@cs.ucla.edu

Abstract

Wireless embedded systems, especially life-critical body-area networks, need security in order to prevent unauthorized and malicious users from injecting traffic and accessing confidential data. Coupled with the security costs in system performance and power consumption, embedded systems are also restricted by the type of security that can fit in their limited memory. To address these issues, we introduce a Dynamic Security System (DYNASEC), a novel architecture that ensures message integrity and confidentiality in wireless embedded systems. A delay-aware heuristic attempts to maximize security levels of different nodes throughout the system while ensuring that timing constraints are met. This experimental analysis on a reconfigurable electrocardiogram (ECG) application validates the efficacy of the DYNASEC architecture in a body area network. Our experiments demonstrate that DYNASEC enables lightweight medical embedded systems to dynamically optimize security levels to meet timing constraints in a body sensor network.