[Resource Topic] 2017/1207: Unconditionally secure multi-party quantum commitment scheme

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Unconditionally secure multi-party quantum commitment scheme

Authors: Mingqiang Wang, Xue Wang, Tao Zhan


A new unconditionally secure multi-party quantum commitment is proposed in this paperby encoding the committed message to the phase of a quantum state. Multi-party means that there are more than one recipient in our scheme. We show that our quantum commitment scheme is unconditional hiding and binding, and hiding is perfect. Our technique is based on the interference of phase-encoded coherent states of light. Its security proof relies on the no-cloning theorem of quantum theory and the properties of quantum information.

ePrint: https://eprint.iacr.org/2017/1207

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