Improved Multipartite Quantum Secret Sharing Protocol Using Preshared Greenberger-Horne-Zeilinger States

XIE Deng,YE Ming-Yong,LI Xing-Hua,谢灯, 叶明勇,李兴华

COMMUNICATIONS IN THEORETICAL PHYSICS（2011）

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摘要

Inspired by the protocol presented by Bagherinezhad and Karimipour [Phys. Rev. A 67 (2003) 044302], which will be shown to be insecure, we present a multipartite quantum secret sharing protocol using reusable Greenberger-Horne-Zeilinger (GHZ) states. This protocol is robust against eavesdropping and could be used for the circumstance of many parties.

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关键词

secret sharing,Greenberger-Horne-Zeilinger state,quantum cryptography

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