光子数分裂攻击的推广及其在子载波量子密码协议中的应用效率

IF 1.3 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

JETP Letters Pub Date : 2025-07-31 DOI:10.1134/S002136402560658X

D. A. Kronberg

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引用次数: 0

摘要

相干态量子密码协议因其易于实现而备受关注。然而，由于通信信道中的衰减可以被窃听者利用，因此此类协议针对所有攻击的安全性证明可能会很棘手。本文提出了一种针对子载波量子密码协议的攻击方法，推广了光子数分裂攻击。特别是在窃听者没有量子存储器的情况下，分析了攻击效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Generalization of a Photon Number Splitting Attack and the Efficiency of Its Application to a Subcarrier Wave Quantum Cryptography Protocol

Coherent state quantum cryptography protocols are of interest due to their easy implementation. However, the security proof of such protocols against all attacks can be tricky because of the attenuation in the communication channel that can be exploited by an eavesdropper. In this work, an attack on the subcarrier wave quantum cryptography protocol has been built, which generalizes the photon number splitting attack. The efficiency of the attack has been analyzed, in particular, for the case where the eavesdropper does not have quantum memory.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.