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Multiparty Quantum Secret Sharing Using Quantum Fourier Transform
Authors:HUANG Da-Zu CHEN Zhi-Gang GUO Ying
Affiliation:1.School of Information Science Engineering, Central South University,;Changsha 410083, China;2.Department of Information Management, Hunan College of Finance;and Economics, Changsha 410205, China
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.
Keywords:quantum secret sharing   quantum Fourier transform   quantum error correction code
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