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Pacemakers and Implantable Cardiac
Defibrillators: Software Radio Attacks and ZeroPower Defenses
By: Halperin, Heydt—Benjamin, Ransford, Clark, Defend, Morgan, Fu, Kohno, and Maisel
Presented by: Charlie Allen
Overview
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•
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IMDs
Attacks
Defenses
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–
–
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Notification
Authentication
Key Exchange
Future Work
IMDs
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Pacemakers
Implantable Cardioverter Defibrilators (ICD)
Neurostimulators
Drug Pumps
Wireless
Implanted ICD
Programming IMDs
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Commercial Programmers
Radio Communicator
Security Model
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Access to programmers
Passive Adversary
Active Adversary
Assumptions
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ICDs Honest
Intercepting Communication
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•
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Reverse engineering
Eavesdropping
Limitations
Attacks
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ICD Identification
Disclosing patient data
Disclosing cardiac data
Changing patient name
Setting the ICD’s clock
Changing therapies
Inducing fibrillation
Power denial of service
WISPer
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•
•
Notification
Zero-Power
Sound Audibility
WISP with Attached Piezo-element
Authentication


Uses

Master Key known by all programmers

Identity specific to IMD

Nonce known by programmer in advance
Improvements

Random nonce
Key Exchange
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Process
Medium
Questions?