QKD中继模型的一种新方案

2008 Proceedings of 17th International Conference on Computer Communications and Networks Pub Date : 2008-11-17 DOI:10.1109/ICCCN.2008.ECP.92

Cuong Le Quoc, P. Bellot

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引用次数: 3

摘要

研究了一种准可信QKD中继模型。这是一个三方通信模型。两个节点Alice和Bob想要建立一个密钥。然而，它们之间的距离超出了QKD的限制范围。Carol是一个中间节点，可以与Alice和Bob共享QKD链接。Carol被假定为准可信的:她正确地遵循给定的三方协议。然而，她可能被恶意的人夏娃窃听。我们提出了两个基于单光子的协议，允许Alice, Carol和Bob实现目标。因此，这些协议可以在不调用纠缠光子的情况下安全地扩展到QKD限制范围的两倍。

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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A New Proposal for QKD Relaying Models

We investigate a quasi-trusted QKD relaying model. This is a three-party communication model. Two nodes Alice and Bob want to establish a secret key. However, the distance between them exceeds the limited range of QKD. Carol is a intermediate node that could share QKD links with Alice and Bob. Carol is assumed to be quasi-trusted: she correctly follows the given three-party protocol. However, she may be eavesdropped by the malicious person Eve. We propose two single-photon based protocols that allow Alice, Carol and Bob to achieve the goal. As a result, these protocols could be applied to securely extend up to two times the limited range of QKD without invoking entangled photons.

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2008 Proceedings of 17th International Conference on Computer Communications and Networks

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