Security Seminar Cambridge UK September 2002

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Presentation at Cambridge University, UK based on my PhD dissertation on Physical One-Way Functions.

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Security Seminar Cambridge UK September 2002

  1. 1. Physical One-Way Functions Ravi Pappu ThingMagic LLC ravi@thingmagic.com
  2. 2. Goal Unique, tamper-resistant, unforgeable identifiers from disordered mesoscopic physical systems e.g. glass microspheres in epoxy
  3. 3. Outline •  Motivation and related work •  Mesoscopic physics •  POWFs: design / engineering / performance •  Attacks •  A simple protocol
  4. 4. Motivation •  Bits are bits •  Silicon authentication not always feasible impractical expensive
  5. 5. But… Information is physical. Rolf Landauer, 1927-99 Can we recruit atoms to secure bits?

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