Quantum Digital Signature with Continuous-Variable
Quantum Digital Signature with Continuous-Variable
复制标题
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
中科院分区:
文献类型:
--
作者:
Xu Deng;Wei Zhao;Ronghua Shi;Chao Ding;Huilong Fan
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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