量子密鑰分配協(xié)議在概率克隆/重發(fā)攻擊下的安全性
The Security of Quantum Key Distribution under Probabilistic Clone/ Resend Attack
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摘要: 該文基于概率克隆理論提出了一種量子密鑰分配協(xié)議的攻擊策略，密鑰攻擊者通過概率克隆機將發(fā)送端發(fā)送的量子態(tài)進行概率克隆，并根據(jù)自已的結(jié)果重新產(chǎn)生一個新的量子態(tài)發(fā)送給接收端。理論計算證明了量子密鑰分配協(xié)議在這種攻擊策略下仍具有足夠的安全性。在經(jīng)典計算機上設(shè)計并仿真量子密鑰分配過程，仿真結(jié)果與理論分析相吻合。
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關(guān)鍵詞:
- 攻擊策略;量子密鑰分配協(xié)議;不可克隆理論;概率克隆機
Abstract: In this paper, an attack scheme based on probabilistic cloning machine is proposed, where the eavesdropper measures the quantum state from sender with a probabilitstic cloning machine, and resends the receiver a new result. It is shown that there is still an asymptotic perfect security of quantum key distribution under this attack strategy. The simulation results on classical computer are consistent with the theoretic ones. -
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