Comment on 'Quantum secret sharing between multiparty and multiparty without entanglement'

Journal Article · Sat Jan 14 23:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20786808

Li, C -M; Hwang, T ^[1]; Chang, C -C ^[2]

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1. Department of Computer Science and Information Engineering, National Cheng Kung University, No. 1, Ta-Hsueh Road, Tainan City, 701, Taiwan (China)
2. Department of Information Management, Chang Jung Christian University, 396 Chang Jung Road, SEC 1, Kway Jen, Tainan, 711, Taiwan (China)

Recently, Yan and Gao [Phys. Rev. A 72, 012304 (2005)] presented a quantum secret sharing protocol which allows a secret message to be shared between two groups of parties (m parties in group 1 and n parties in group 2). Their protocol is claimed to be secure that, except with the cooperation of the entire group 1 or group 2, no subgroup of either group 1 or group 2 can extract the secret message. However, this study points out that the mth party (the last party to process the quantum state) of group 1 can maliciously replace the secret message with an arbitrary message without the detection of the other parties.

• OSTI ID: 20786808
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 73; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DETECTION
ENERGY LEVELS
QUANTUM CRYPTOGRAPHY
QUANTUM ENTANGLEMENT
QUANTUM MECHANICS
SECRECY PROTECTION