Computer System Security and Medical Devices Kevin Fu - - PowerPoint PPT Presentation

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Computer System Security and Medical Devices Kevin Fu - - PowerPoint PPT Presentation

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Computer System Security and Medical Devices Kevin Fu kevinfu@cs.umass.edu Department of Computer Science University of Massachusetts at Amherst, USA http://prisms.cs.umass.edu/ October 27, 2006 Computer Science 1 Whats special about

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Computer Science

Department of Computer Science University of Massachusetts at Amherst, USA http://prisms.cs.umass.edu/

October 27, 2006

Kevin Fu

kevinfu@cs.umass.edu

Computer System Security

and Medical Devices

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Computer Science

What’s special about security?

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Kevin Fu, Computer System Security

Computer Science

Correctness is easy. Security is hard.

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Kevin Fu, Computer System Security

Computer Science

Research in System Security

  • Design, build, measure secure systems
  • Analyze existing systems

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RFID Security & Privacy

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Kevin Fu, Computer System Security

Computer Science

RFID tags

  • Originally simple UPC replacement
  • Now are miniature, low-power computers
  • Applications
  • e-commerce
  • public transportation
  • anti-counterfeiting medicine
  • medical applications

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Kevin Fu, Computer System Security

Computer Science

500 Euros in wallet

Serial numbers: 597387,389473…

Wig

model #4456

(cheap polyester)

30 items

  • f lingerie

Das Kapital and Communist-party handbook

Replacement hip

medical part #459382

RFID tags will be everywhere…

Credit: Ari Juels 7

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Credit: MGH

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Hospital Bracelet?

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Kevin Fu, Computer System Security

Computer Science

Prevent tag duplication

  • Don’t copy my car key!
  • How to prevent

reverse-engineering?

  • Side channel analysis?

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Kevin Fu, Computer System Security

Computer Science

Secure RFID

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Kevin Fu, Computer System Security

Computer Science

Contactless Credit Cards Insecure?

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Kevin Fu, Computer System Security

Computer Science

Privacy for Public Transit

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Secure Software Updates

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Kevin Fu, Computer System Security

Computer Science

Survey of Update Security

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http://www.cs.umass.edu/~kevinfu/secureupdates/

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Automotive Updates

http://www.soultek.com/clean_energy/hybrid_cars/toyota_prius_hybrid_car_shut_down_or_stall_problems.htm 18

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Updates in Voting Machines

http://www.nytimes.com/2006/05/12/us/12vote.html?ex=1305086400&en=1b3554af6e2d524a&ei=5088&partner=rssnyt&emc=rss 19

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Implanted medical devices use updates too

What stops a computer viruses from infecting implants? A common wireless command on an ICD induces ventricular fibrillation. How is it authenticated?

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Embedded Medical Software

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Kevin Fu, Computer System Security

Computer Science

Discussion

  • Technical
  • What are the threat models for wirelessly

reprogrammable medical implants?

  • How to balance safety, privacy, security?
  • Philosophical
  • What is the role of FDA for future

implanted medical devices?

  • Biggest challenges for next-generation

implanted devices?

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Kevin Fu, Computer System Security

Computer Science

System Security at UMass Amherst

Faculty and affiliates Graduate Students

www.rfid-cusp.org

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Computer Science

Computer Science at UMass/Amherst

http://www.cs.umass.edu

43 faculty, ~230 graduate students, ~300 undergraduate students

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