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Pacemakers and Implantable Cardiac Defibrillators: Software Radio Attacks and Zero-Power Defenses

Pacemakers and Implantable Cardiac Defibrillators: Software Radio Attacks and Zero-Power Defenses. By: Halperin, Heydt—Benjamin, Ransford, Clark, Defend, Morgan, Fu, Kohno, and Maisel Presented by: Charlie Allen. Overview. IMDs Attacks Defenses Notification Authentication Key Exchange

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Pacemakers and Implantable Cardiac Defibrillators: Software Radio Attacks and Zero-Power Defenses

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  1. Pacemakers and Implantable Cardiac Defibrillators: Software Radio Attacks and Zero-Power Defenses By: Halperin, Heydt—Benjamin, Ransford, Clark, Defend, Morgan, Fu, Kohno, and Maisel Presented by: Charlie Allen

  2. Overview • IMDs • Attacks • Defenses • Notification • Authentication • Key Exchange • Future Work

  3. IMDs • Pacemakers • Implantable Cardioverter Defibrilators (ICD) • Neurostimulators • Drug Pumps • Wireless

  4. Implanted ICD

  5. Programming IMDs • Commercial Programmers • Radio Communicator

  6. Security Model • Access to programmers • Passive Adversary • Active Adversary • Assumptions • ICDs Honest

  7. Intercepting Communication • Reverse engineering • Eavesdropping • Limitations

  8. Attacks • ICD Identification • Disclosing patient data • Disclosing cardiac data • Changing patient name • Setting the ICD’s clock • Changing therapies • Inducing fibrillation • Power denial of service

  9. WISPer • Notification • Zero-Power • Sound Audibility

  10. WISP with Attached Piezo-element

  11. Authentication • Uses • Master Key known by all programmers • Identity specific to IMD • Nonce known by programmer in advance • Improvements • Random nonce

  12. Key Exchange • Process • Medium

  13. Questions?

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