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Performance Measurements of Tor Hidden Services in Low-Bandwidth Access Networks

机译：低带宽接入网中Tor隐藏服务的性能度量

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摘要

Being able to access and provide Internet services anonymously is an important mechanism to ensure freedom of speech in vast parts of the world. Offering location-hidden services on the Internet requires complex redirection protocols to obscure the locations and identities of communication partners. The anonymity system Tor supports such a protocol for providing and accessing TCP-based services anonymously. The complexity of the hidden service protocol results in significantly higher response times which is, however, a crucial barrier to user acceptance. This communication overhead becomes even more evident when using limited access networks like cellular phone networks. We provide comprehensive measurements and statistical analysis of the bootstrapping of client processes and different sub-steps of the Tor hidden service protocol under the influence of limited access networks. Thereby, we are able to identify bottlenecks for low-bandwidth access networks and to suggest improvements regarding these networks.
机译：能够匿名访问和提供Internet服务是确保世界大部分地区言论自由的重要机制。在Internet上提供隐藏位置的服务需要复杂的重定向协议，以掩盖通信伙伴的位置和身份。匿名系统Tor支持这种协议，用于匿名提供和访问基于TCP的服务。隐藏服务协议的复杂性导致响应时间大大增加，但这是用户接受的关键障碍。当使用像蜂窝电话网络这样的有限访问网络时，这种通信开销变得更加明显。在受限访问网络的影响下，我们提供对客户端进程的启动和Tor隐藏服务协议的不同子步骤的全面测量和统计分析。因此，我们能够确定低带宽接入网络的瓶颈，并提出有关这些网络的改进建议。

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