PeerFlow: Secure Load Balancing in Tor
PeerFlow: Secure Load Balancing in Tor
复制标题
PeerFlow：Tor 中的安全负载平衡
DOI：
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发表时间：
2017
影响因子：
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通讯作者：
P. Syverson
中科院分区：
文献类型：
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作者：
Aaron Johnson;Rob Jansen;Nicholas Hopper;Aaron Segal;P. Syverson
摘要提出了一种在ToR中实现客户端流量安全负载均衡的系统PeerFlow。ToR的安全要求任何对手都不能处理太多流量。然而，ToR中继是由志愿者运行的，他们不能被信任来报告Tor客户端用于负载平衡的中继带宽。我们发现，现有的确定ToR中继带宽的方法允许带宽很小的攻击者攻击大量的客户端流量。这些方法包括Tor目前的带宽扫描系统TorFlow和同行测量系统EenerSpeed.我们提出了一种名为PeerFlow的改进设计，它使用对等测量过程来限制对手增加其测量带宽的能力，并提高准确性。我们展示了我们的系统是安全、快速和高效的。我们在ToR中实现了PeerFlow，并在大规模网络模拟中验证了它的速度和准确性。
Abstract We present PeerFlow, a system to securely load balance client traffic in Tor. Security in Tor requires that no adversary handle too much traffic. However, Tor relays are run by volunteers who cannot be trusted to report the relay bandwidths, which Tor clients use for load balancing. We show that existing methods to determine the bandwidths of Tor relays allow an adversary with little bandwidth to attack large amounts of client traffic. These methods include Tor’s current bandwidth-scanning system, TorFlow, and the peer-measurement system EigenSpeed. We present an improved design called PeerFlow that uses a peer-measurement process both to limit an adversary’s ability to increase his measured bandwidth and to improve accuracy. We show our system to be secure, fast, and efficient. We implement PeerFlow in Tor and demonstrate its speed and accuracy in large-scale network simulations.
DOI：
10.1145/1294261.1294279
发表时间：
2007-10
期刊：
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影响因子：
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作者：
Andreas Haeberlen;P. Kuznetsov;P. Druschel
通讯作者：
Andreas Haeberlen;P. Kuznetsov;P. Druschel