Acta Photonica Sinica, Volume. 41, Issue 9, 1113(2012)
False Alarm Probability of Eavesdropping Checks for Controllable Quantum Secret Sharing
The false alarm probability of eavesdropping checks on both AliceBob quantum channel and AliceCharlie quantum channel in the controllable quantum secret sharing protocol using GreenbergerHorneZeilinger states proposed by Y. Sun et al. is analyzed. The reason why the total false alarm probability of eavesdropping checks in the controllable quantum secret sharing protocol using GreenbergerHorneZeilinger states is not equal to 0 lies in the randomness of measurement basis selection for eavesdropping checks. Afterward, an improved controllable quantum secret sharing protocol using GreenbergerHorneZeilinger states is proposed, based on using deterministic measurement basis for eavesdropping checks. Theoretical analysis shows that compared with the original one, the improved scheme can discover the eavesdropping from any internal dishonest participant with twice probability, and possesses much higher security. Moreover, the total false alarm probability of eavesdropping checks in the improved scheme is equal to 0.
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YE Tianyu, JIANG Lizhen. False Alarm Probability of Eavesdropping Checks for Controllable Quantum Secret Sharing[J]. Acta Photonica Sinica, 2012, 41(9): 1113
Received: Feb. 23, 2012
Accepted: --
Published Online: Aug. 31, 2012
The Author Email: Tianyu YE (flystu008@yahoo.com.cn)