Controlling the key by choosing the detection bits in quantum cryptographic protocols
Controlling the key by choosing the detection bits in quantum cryptographic protocols
复制标题
通过选择量子密码协议中的检测位来控制密钥
DOI：
10.1007/s11432-015-5413-8
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发表时间：
2015-09
影响因子：
8.8
通讯作者：
Wen QiaoYan
中科院分区：
文献类型：
--
作者：
Gao Fei;Huang Wei;Li Dan;Wen QiaoYan
窃听检测是大多数量子密码协议不可或缺的过程。通过发布并比较部分共享位（称为检测位），参与者可以检查是否存在窃听者。一般来说，检测位是随机选择的。因此，秘密位，即其余位，也是随机的。那么，如果检测位是非随机选择的呢？选择检测位的参与者能否使秘密位成为他期望的预定字符串？本文重点研究两方量子通信协议中参与者选择性选择检测位时的关键控制能力。具体来说，我们分析了参与者在不同情况下不同比例的检测比特的关键控制能力。我们证明参与者可以以高概率预先确定秘密比特中长度小于检测比特长度的任何部分。上述结果在量子密码协议中具有多种潜在的应用。显然，利用这种检测比特的非随机选择，只要检测比特的数量不小于秘密比特的数量，就可以通过随机选择来实现确定性量子密钥分发协议的功能。更重要的是，我们发现相当多的量子密钥协商协议不能保证密钥的公平性，即选择检测位的参与者可以在一定程度上控制密钥。
Eavesdropping detection is an indispensable process of most quantum cryptographic protocols. By publishing and comparing part of the shared bits, called as detection bits, the participants can check whether there exists an eavesdropper. Generally, the detection bits are chosen randomly. Consequently, the secret bits, i.e., the rest bits, are also random. Then, what if the detection bits are chosen non-randomly? Can the participant who chooses the detection bits make the secret bits to be a predetermined string he expected? This paper focuses on the participants’ key control capability when they choose the detection bits selectively in two-party quantum communication protocols. Concretely, we analyze the participants’ key control capability in different situations of different proportions of the detection bits. And we prove that the participants can predetermine, with high probability, any part of the secret bits of which the length is smaller than that of the detection bits. The above result has various potential applications in quantum cryptographic protocols. Obviously, utilizing this non-random selection of the detection bits, one can realize the function of a deterministic quantum key distribution protocol through a random one if the number of the detection bits is not smaller than that of the secret bits. What is more, we find that quite a few quantum key agreement protocols cannot guarantee the fairness of the key in the sense that the participant who chooses the detection bits can control the key somewhat.
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DOI：
10.1117/12.483026
发表时间：
2002-09
期刊：
--
影响因子：
--
作者：
G. Guo;Guangcan Guo
通讯作者：
G. Guo;Guangcan Guo
影响因子：
8.6
作者：
Giovannetti, Vittorio;Lloyd, Seth;Maccone, Lorenzo
通讯作者：
Maccone, Lorenzo
针对集体振幅阻尼噪声的容错量子秘密共享
影响因子：
6.4
作者：
Wang Yuan;Chai HaiPing;Teng YiWei;Yang YuGuang;Wen QiaoYan
通讯作者：
Wen QiaoYan
影响因子：
2.9
作者：
Long, GL;Liu, XS
通讯作者：
Liu, XS
影响因子：
2.9
作者：
Hillery, M;Buzek, V;Berthiaume, A
通讯作者：
Berthiaume, A