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Cheat sensitive quantum bit commitment.

Research paper by Lucien L Hardy, Adrian A Kent

Indexed on: 01 Jun '04Published on: 01 Jun '04Published in: Physical review letters



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.