Quantum secret sharing based on reusable GHZ states as secure carriers

Abstract

We introduce a protocol for quantum secret sharing based on reusable entangled states. The entangled state between the sender and the receiver acts only as a carrier to which data bits are entangled by the sender and disentangled from it by the receivers, all by local actions of simple gates. We also show that the interception by Eve or the cheating of one of the receivers introduces a quantum bit error rate (QBER) larger than 25 percent which can be detected by comparing a subsequence of the bits.

9 pages, no figures, latex; major revisons, Accepted for Publication in Physical Rev. A

References in corpus (5)

• Quantum Cryptography
• Security of quantum key distribution using d-level systems
• Experimental investigation of the robustness of partially entangled photons over 11km
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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)]
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• Secure Quantum Secret Sharing Based on Reusable GHZ States as Secure Carriers
• Computing on Quantum Shared Secrets for General Quantum Access Structures
• Reply to Comment on ''Quantum secret sharing based on a reusable Greenberger-Horne -Zeilinger states as secure carriers''
• Entanglement Split:Comment on ``Quantum secret sharing based on reusable Greenberger-Horne-Zeilinger states as secure carriers'' [Phys. Rev. A 67, 044302 (2003)]
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• Some Directions beyond Traditional Quantum Secret Sharing
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• Reply to Comment on ''Quantum key distribution for d-level systems with generalized Bell states''
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