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Cheat sensitive bit commitment

Thursday 9th September 2004 - 11:30 to 12:15
INI Seminar Room 2

We define cheat sensitive cryptographic protocols between mistrustful parties as protocols which guarantee that, if either cheats, the other has some nonzero probability of detecting the cheating. We give an example of an unconditionally secure cheat sensitive non-relativistic bit commitment protocol which uses quantum information to implement a task which is classically impossible.

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