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Published on: November 11, 2013
Cheat sensitive quantum bit commitment
1The Perimeter Institute, 35 King Street North, Waterloo, Ontario, Canada N2J 2W9.
Abstract:
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 describe an unconditionally secure cheat sensitive nonrelativistic bit commitment protocol which uses quantum information to implement a task which is classically impossible; we also describe a simple relativistic protocol.
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