Cryptanalysis and Improvement of a Quantum Network System of QSS-QDC Using χ -Type Entangled States
GAO Gan1** , FANG Ming2 , CHENG Mu-Tian3
1 Department of Electrical Engineering, Tongling University, Tongling 2440002 Jiang Huai College of Anhui University, Hefei 2300313 School of Electrical Engineering and Information, Anhui University of Technology, Maanshan 243002
Abstract ：In the paper [Chin. Phys. Lett. 29 (2012) 050303 ] of Hong et al., two quantum secret sharing protocols were proposed. We study the security of the second protocol and find that it is insecure. Acting as the communication center, Trent may eavesdrop Alice's secret messages without introducing any error. Finally, a feasible improvement of the second protocol is given.
收稿日期: 2012-05-31
出版日期: 2012-11-28
:
03.67.Dd
(Quantum cryptography and communication security)
03.67.Hk
(Quantum communication)
03.67.-a
(Quantum information)
[1] Bennett C H and Brassard G 1984 Proc. IEEE Int. Conf. Comput. Syst. Signal Processings (Bangalore India) (New York: IEEE) P 175 1991 Phys. Rev. Lett. 67 661 1992 Phys. Rev. Lett. 68 557 2003 Phys. Rev. A 68 042315 2008 Phys. Rev. A 78 022321 2008 Opt. Commun. 281 876 2010 Phys. Scr. 81 065005 2010 Chin. Phys. Lett. 27 090301 2011 Chin. Phys. Lett. 28 120306 2011 Chin. Phys. Lett. 28 100301 1993 Phys. Rev. Lett. 70 1895 2002 Phys. Rev. A 65 032302 2007 Chin. Phys. Lett. 24 15 2012 Chin. Phys. Lett. 29 010301 1999 Phys. Rev. A 59 1829 2002 Phys. Rev. A 65 042320 2003 Phys. Lett. A 310 247 2004 Phys. Lett. A 324 420 2005 Phys. Rev. A 72 044302 2005 Phys. Rev. A 72 012304 2006 Phys. Lett. A 358 11 2006 Phys. Lett. A 354 190 2006 J. Phys. B: At. Mol. Opt. Phys. 39 1975 2006 Chin. Phys. Lett. 23 3148 2007 Opt. Commun. 269 418 2008 Chin. Phys. Lett. 25 1187 2008 Phys. Lett. A 372 1957 2008 Chin. Phys. Lett. 25 16 2009 Commun. Theor. Phys. 52 421 2010 Chin. Phys. Lett. 27 060303 2010 Sci. Chin. Phys. Mech. Astron. 53 491 2011 Chin. Phys. Lett. 28 050303 2012 Chin. Phys. Lett. 29 050303 2011 Chin. Phys. Lett. 28 010503 2006 Phys. Rev. Lett. 96 060502 2005 Chin. Phys. Lett. 22 1049 2007 Chin. Phys. Lett. 24 1463 2007 Opt. Commun. 275 278 2010 Phys. Scr. 81 045006 2010 Opt. Commun. 283 2644
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
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[9]
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[10]
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[11]
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[12]
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[13]
.
[14]
.
[15]
.
2012, Vol. 29 
