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Resource Requirements and Speed versus Geometry of Unconditionally Secure Physical Key Exchanges

机译：无条件安全物理密钥交换的资源需求和速度与几何关系

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摘要

The imperative need for unconditional secure key exchange is expounded by the increasing connectivity of networks and by the increasing number and level of sophistication of cyberattacks. Two concepts that are theoretically information-secure are quantum key distribution (QKD) and Kirchoff-Law-Johnson-Noise (KLJN). However, these concepts require a dedicated connection between hosts in peer-to-peer (P2P) networks which can be impractical and or cost prohibitive. A practical and cost effective method is to have each host share their respective cable(s) with other hosts such that two remote hosts can realize a secure key exchange without the need of an additional cable or key exchanger. In this article we analyze the cost complexities of cable, key exchangers, and time required in the star network. We mentioned the reliability of the star network and compare it with other network geometries. We also conceived a protocol and equation for the number of secure bit exchange periods needed in a star network. We then outline other network geometries and trade-off possibilities that seem interesting to explore.
机译：随着网络连接性的提高以及网络攻击的复杂性和水平的提高，对无条件安全密钥交换的迫切需求得到了体现。从理论上讲信息安全的两个概念是量子密钥分发（QKD）和Kirchoff-Law-Johnson-Noise（KLJN）。但是，这些概念要求在对等（P2P）网络中的主机之间建立专用连接，这可能是不切实际和/或成本高昂的。一种实用且经济有效的方法是让每个主机与其他主机共享各自的电缆，这样两个远程主机就可以实现安全的密钥交换，而无需额外的电缆或密钥交换器。在本文中，我们分析了星形网络中电缆，关键交换机和所需时间的成本复杂性。我们提到了星形网络的可靠性，并将其与其他网络几何形状进行比较。我们还构想了星形网络中所需的安全比特交换周期数的协议和方程式。然后，我们概述了其他有趣的网络几何形状和折衷可能性。

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