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arXiv 2108.09370cs.CR
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对Kirchhoff定律-Johnson噪声(KLJN)安全密钥交换协议的非线性攻击

Nonlinearity Attack against the Kirchhoff-Law-Johnson-Noise (KLJN) Secure Key Exchange Protocol

Christiana Chamon, Laszlo B. Kish

摘要:

本文提出了一种新的对Kirchhoff定律-Johnson-Noise(KLJN)安全密钥交换方案的攻击。攻击是基于噪声发生器的非线性。我们探讨了二阶(D2)、三阶(D3)以及二阶和三阶的组合(D2,3)的总失真(TD)对KLJN方案安全性的影响。它表明,只要1%的结果在一个显着的功率流沿信息通道,这导致了显着的信息泄漏。我们还表明,降低有效温度(即线电压),并以这种方式减少非线性,结果在KLJN计划接近完美的安全性。

英文摘要:

This paper introduces a new attack against the Kirchhoff-Law-Johnson-Noise (KLJN) secure key exchange scheme. The attack is based on the nonlinearity of the noise generators. We explore the effect of total distortion (TD) at the second order (D2), third order (D3), and a combination of the second and third orders (D2,3) on the security of the KLJN scheme. It is demonstrated that a as little as 1% results in a notable power flow along the information channel, which leads to a significant information leak. We also show that decreasing the effective temperature (that is, the wire voltage) and, in this way reducing nonlinearity, results in the KLJN scheme approaching perfect security.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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