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arXiv:1111.6311

A Simple Quantum Bit Commitment Protocol

S. Arash Sheikholeslam, Thomas Aaron Gulliver

Published Nov 27, 2011• 0 citations
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Abstract

In this paper, we introduce a new quantum bit commitment protocol which is secure against entanglement attacks. Some cheating strategies are discussed and shown to be ineffective against the proposed approach.

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It is shown how the evidence state space in quantum bit commitment may be made to depend on the bit value 0 or 1 with split entangled pairs. As a consequence, one can obtain a protocol that is perfectly concealing, but is also εεε-binding because the bit-value dependent evidence space prevents the committing party from cheating by means of a local transformation that is independent of the part of evidence state space that has never been in his possession.