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arXiv 1707.02520cs.CR
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一种基于复合度量的Tor路由选择技术

A Composite-Metric Based Path Selection Technique for the Tor Anonymity Network

Sadegh Momeni Milajerdi, Mehdi Kharrazi

摘要:

Tor匿名网络在互联网上的普通用户中非常受欢迎。在Tor网络中,通过选择三个中继来创建匿名路径,通过这些中继重定向连接。然而,随着近年来Tor用户数量的大幅增加,选择中继的算法会影响Tor网络提供的性能。更重要的是,随着性能的下降,用户将离开网络,导致匿名设置降低,从而降低Tor网络提供的安全性。本文提出了一种改进Tor网络性能和安全性的算法,在源节点和目的节点之间的路径选择过程中采用不同度量的组合。这些度量是作为节点条件的中继器的带宽和带宽,以及作为路径条件的中继器之间的延迟。通过大量的实验,我们表明,我们可以通过最终用户观察到的性能时,使用所提出的技术,而不是目前的Tor路径选择算法。更重要的是,所提出的技术只需要在客户端进行软件升级,其他Tor节点不需要修改。

英文摘要:

The Tor anonymous network has become quite popular with regular users on the Internet. In the Tor network, an anonymous path is created by selecting three relays through which the connection is redirected. Nevertheless, as the number of Tor users has increased substantially in recent years, the algorithm with which the relays are selected affects the performance provided by the Tor network. More importantly as the performance suffers, users will leave the network, resulting in a lower anonymity set and in turn lower security provided by Tor network. In this paper, we proposed an algorithm for improving performance and security of the Tor network, by employing a combination of different metrics in the process of the path selection between the source and destination node. These metrics are bandwidth and uptime of relays as node conditions and delays between the relays as a path condition. Through a number of experiments we show that we could double the performance observed by end users when using the proposed technique as opposed to the current Tor path selection algorithm. More importantly, the proposed technique only requires a software upgrade on the client side, and other Tor nodes do not need to be modified.

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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