YANG Wei, HUANG Liusheng, WANG Yang and LUO Yonglong. Quantum Two-prover Bit Commitment[J]. Chinese Journal of Electronics, 2010, 19(2): 201-205.
Citation: YANG Wei, HUANG Liusheng, WANG Yang and LUO Yonglong. Quantum Two-prover Bit Commitment[J]. Chinese Journal of Electronics, 2010, 19(2): 201-205.

Quantum Two-prover Bit Commitment

  • Received Date: 2008-11-20
  • Rev Recd Date: 2009-12-01
  • Publish Date: 2010-04-05
  • This paper considers a new bit commit-
    ment model named Quantum two-prover bit commitment
    (QTPBC) and its physical realization. In a QTPBC scheme
    two provers jointly commit a bit to the veri¯er. The two
    provers can cooperate and communicate between them to
    decide on a common optimal strategy before the interac-
    tion with the veri¯er starts, further they are allowed to
    share quantum entanglement. But once the interaction be-
    gins, the two provers are physically separated and isolated,
    and they cannot send both classical and quantum messages
    to each other any longer. By virtue of rapid progress in
    single photon detection technology, we construct a quan-
    tum protocol for QTPBC based on linear code. Detailed
    analysis shows that our scheme is of unconditional secu-
    rity, i.e., the computing power of participants and poten-
    tial eavesdroppers is assumed to be in¯nite. Moreover, the
    scheme is proven to be able to tolerate errors due to noise
    in practice.
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