Unconditionally secure multi-party quantum commitment scheme

Mingqiang Wang; Xue Wang; Tao Zhan

Paper 2017/1207

Unconditionally secure multi-party quantum commitment scheme

Mingqiang Wang, Xue Wang, and Tao Zhan

Abstract

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.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint. MINOR revision.
Contact author(s): wangmingqiang @ sdu edu cn
History: 2017-12-18: received
Short URL: https://ia.cr/2017/1207
License: CC BY

BibTeX

@misc{cryptoeprint:2017/1207,
      author = {Mingqiang Wang and Xue Wang and Tao Zhan},
      title = {Unconditionally secure multi-party quantum commitment scheme},
      howpublished = {Cryptology {ePrint} Archive, Paper 2017/1207},
      year = {2017},
      url = {https://eprint.iacr.org/2017/1207}
}