Secure Quantum Secret Sharing Based on Reusable GHZ States as Secure Carriers

Abstract

We show a potential eavesdropper can eavesdrop whole secret information when the legitimate users use secure carrier to encode and decode classical information repeatedly in the protocol [proposed in Bagherinezhad S and Karimipour V 2003 Phys. Rev. A \textbf{67} 044302]. Then we present a revised quantum secret sharing protocol by using Greenberger-Horne-Zeilinger state as secure carrier. Our protocol can resist Eve's attack.

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• Quantum secret sharing
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• Quantum secret sharing based on reusable GHZ states as secure carriers
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• Comment on "Quantum secret sharing based on reusable Greenberger-Horne-Zeilinger states as secure carriers" [Phys. Rev. A 67, 044302 (2003)]
• Reply to Comment on ''Quantum secret sharing based on a reusable Greenberger-Horne -Zeilinger states as secure carriers''