Quantum Digital Signature with Continuous-Variable

Quantum Digital Signature with Continuous-Variable
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连续变量的量子数字签名

DOI:
10.1007/s10773-022-05132-8
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发表时间:
2022-05
影响因子:
1.4
通讯作者:
Huilong Fan
Huilong Fan
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Xu Deng;Wei Zhao;Ronghua Shi;Chao Ding;Huilong Fan

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本文提出了一种新的连续变量量子数字签名(CV-QDS)协议,它与成熟的光通信技术和光子探测器更兼容。在许多当前的CV-QDS协议中,量子信号和本地振荡器都是从同一个激光器开始创建的,通过信道传播。然而,本地振荡器设置可能会导致CV-QDS协议的安全问题。因此,我们建议利用导频辅助的前馈数据恢复方案来解决这个障碍。基于参考脉冲测量,接收机可以估计和补偿量子信号的相位漂移,同时避免了发射本振的必要性。安全性分析表明,该协议能够抵抗否认攻击和伪造攻击。
This paper presents a new continuous-variable quantum digital signature (CV-QDS) protocol which is more compatible with proven optical telecommunication technology and photon detector. In many current CV-QDS protocols, both quantum signals and the local oscillator are created starting with the same laser, propagating through the channel. However, the local oscillator setup may cause security problems to CV-QDS protocol. Therefore, we propose to exploit the pilot-aided feedforward data recovery scheme to solve this obstacle. Based on the reference pulse measurement, receivers can estimate and compensate for the phase drift of the quantum signal while avoiding the necessity of the transmitted local oscillator. Security analysis indicates that the protocol proposed in this paper is resistant to repudiation attack and forgery attack.
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影响因子: 2.5
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