Comment on 'Multiparty quantum secret sharing of classical messages based on entanglement swapping'

Journal Article · Sat Sep 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.036301· OSTI ID:21020622

Song, Lin ^[1]; Fei, Gao; Fenzhuo, Guo; Qiaoyan, Wen ^[1]; Fuchen, Zhu ^[2]

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1. School of Science, Beijing University of Posts and Telecommunications, Beijing, 100876 (China)
2. National Laboratory for Modern Communications, P.O. Box 810, Chengdu 610041 (China)

In a recent paper [Z. J. Zhang and Z. X. Man, Phys. Rev. A 72, 022303 (2005)], a multiparty quantum secret sharing protocol based on entanglement swapping was presented. However, as we show, this protocol is insecure in the sense that an unauthorized agent group can recover the secret from the dealer. Hence we propose an improved version of this protocol which can stand against this kind of attack.

• OSTI ID: 21020622
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
QUANTUM CRYPTOGRAPHY
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION
QUANTUM MECHANICS
SECURITY