Reference-free-independent quantum key distribution immune to detector side channel attacks

Reference-free-independent quantum key distribution immune to detector side channel attacks
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无参考独立量子密钥分配,不受检测器侧通道攻击

DOI:
10.1007/s11128-013-0726-2
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发表时间:
2014-01
影响因子:
2.5
通讯作者:
Han Zheng-Fu
Han Zheng-Fu
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Chen Wei;Li Hong-Wei;Guo Guang-Can;Han Zheng-Fu

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通常,在实际的量子密钥分发(QKD)系统中,共享参考帧是必不可少的。因此,由于环境引入的参照系的未知和缓慢变化,大多数QKD系统需要主动对准参照系。有趣的是,RFI (reference-free-independent) QKD可以在不对齐参考帧的情况下生成密钥位。然而,RFI QKD可能仍然容易受到检测器侧信道攻击。在这里,我们提出了一个新的RFI QKD协议,其中所有的探测器侧信道被删除。此外,在没有主动对齐的情况下,我们的协议仍然可以容忍参考帧的未知和缓慢变化。数值模拟表明,该协议可以实现较长的安全距离。
Usually, a shared reference frame is indispensable for practical quantum key distribution (QKD) systems. As a result, most QKD systems need active alignment of reference frame due to the unknown and slowly variances of reference frame introduced by environment. Quite interestingly, reference-free-independent (RFI) QKD can generate secret-key bits without alignment of reference frame. However, RFI QKD may be still vulnerable to detector side channel attacks. Here, we propose a new RFI QKD protocol, in which all detector side channels are removed. Furthermore, our protocol can still tolerate unknown and slow variance of reference frame without active alignment. And a numerical simulation shows that long security distance is probable in this protocol.
DOI: 10.4018/978-1-7998-6677-0.ch001
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