Thedevelopment of studyonquantumattacks and defenses in practical continuous-variablequantumkey distribution systems

Abstract

Abstract: 连续变量量子密钥分发是一种理论上可以提供无条件安全密钥分发的技术，具有广泛的应用前景。然而，实际的连续变量量子密钥分发系统中却存在着一些违背安全性证明中假设的不完美性，它们可能为窃听者打开安全漏洞来隐藏他们的窃听行为，从而成功地窃取安全密钥信息。虽然量子黑客攻击严重地影响了系统的实际应用安全性，但这些攻击均有相应完善的防御方案，从而有效地促进了系统的商业化应用。本文分别详细地展示了连续变量量子密钥分发系统硬件光路的信源、信道及信宿3 个模块中不同的量子黑客攻击及防御策略，并对该研究方向进行了展望。

Key words: continuous-variable, quantumkey distribution, quantumhacking attack

ZHENGYi, HUANGPeng, PENGJinye, ZENGGuihua. Thedevelopment of studyonquantumattacks and defenses in practical continuous-variablequantumkey distribution systems[J]. Information and Communications Technology and Policy, 2019, 45(10): 43-48.

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URL: http://ictp.caict.ac.cn/EN/Y2019/V45/I10/43

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