Communications in Theoretical Physics

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Multiparty Quantum Secret Sharing Using Quantum Fourier Transform

HUANG Da-Zu,1,2 CHEN Zhi-Gang,1 and GUO Ying1   


  1. 1School of Information Science Engineering, Central South University,
    Changsha 410083, China

    2Department of Information Management, Hunan College of Finance
    and Economics, Changsha 410205, China

  • Received: 2008-03-20 Revised: 2008-09-22 Published: 2009-02-15

Abstract: A (n, n)-threshold scheme of multiparty quantum secret sharing
of classical or quantum message is proposed based on the discrete quantum
Fourier transform. In our proposed scheme, the secret message, which is encoded
by using the forward quantum Fourier transform and decoded by using the reverse,
is split and shared in such a way that it can be reconstructed among them only if
all the participants work in concert. Furthermore, we also discuss how this protocol
must be carefully designed for correcting errors and checking eavesdropping or a
dishonest participant. Security analysis shows that our scheme is secure. Also,
this scheme has an advantage that it is completely compatible with quantum computation and easier to realize in the distributed quantum secure computation.

Key words: quantum secret sharing, quantum Fourier transform, quantum error correction code

PACS numbers: 

  • 03.67.Dd