InterJournal Complex Systems, 63
Status: Accepted
Manuscript Number: [63]
Submission Date: 963011
Unconditionally secure quantum bit commitment is impossible
Author(s): Dominic Mayers

Subject(s): CX.09

Category: Brief Article


The claim of quantum cryptography has always been that it can provide protocols that are unconditionally secure, that is, for which the security does not rely on any restriction on the time, space or technology available to the cheaters. We show that this claim cannot be applied to any quantum bit commitment protocol. We briefly discuss the consequences for quantum cryptography.

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