CLAPS: Client-Location-Aware Path Selection in Tor
CLAPS: Client-Location-Aware Path Selection in Tor
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CLAPS:Tor 中的客户端位置感知路径选择
DOI:
10.1145/3372297.3417279
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Pereira, Olivier
中科院分区:
文献类型:
--
作者:
Rochet, Florentin;Wails, Ryan;Johnson, Aaron;Mittal, Prateek;Pereira, Olivier
Much research has investigated improving the security and performance of Tor by having Tor clients choose paths through the network in a way that depends on the client's location. However, this approach has been demonstrated to lead to serious deanonymization attacks. Moreover, we show how in some scenarios it can lead to significant performance degradation. For example, we demonstrate that using the recently-proposed Counter-RAPTOR system when guard bandwidth isn't abundant could increase median download times by 28.7%. We propose the CLAPS system for performing client-location-aware path selection, which fixes the known security and performance issues of existing designs. We experimentally compare the security and performance of CLAPS to Counter-RAPTOR and DeNASA. CLAPS puts a strict bound on the leakage of information about the client's location, where the other systems could completely reveal it after just a few connections. It also guarantees a limit on the advantage that an adversary can obtain by strategic relay placement, which we demonstrate to be overwhelming against the other systems. Finally, due to a powerful formalization of path selection as an optimization problem, CLAPS is approaching or even exceeding the original goals of algorithms to which it is applied, while solving their known deficiencies.
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影响因子:
--
作者:
Hanley, Hans;Sun, Yixin;Wagh, Sameer;Mittal, Prateek
通讯作者:
Mittal, Prateek
DOI:
10.1109/sp.2017.34
发表时间:
2017
期刊:
2017 IEEE Symposium on Security and Privacy (SP)
影响因子:
--
作者:
Yixin Sun;A. Edmundson;N. Feamster;M. Chiang;Prateek Mittal
通讯作者:
Prateek Mittal
DOI:
10.1007/978-3-642-32946-3_9
发表时间:
2012-02
期刊:
--
影响因子:
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作者:
Tao Wang;Kevin S. Bauer;Clara Forero;I. Goldberg
通讯作者:
Tao Wang;Kevin S. Bauer;Clara Forero;I. Goldberg
影响因子:
--
作者:
Barton, Armon;Wright, Matthew
通讯作者:
Wright, Matthew
DOI:
10.14722/ndss.2017.23307
发表时间:
2015
期刊:
ArXiv
影响因子:
--
作者:
Aaron Johnson;Rob Jansen;A. D. Jaggard;J. Feigenbaum;P. Syverson
通讯作者:
P. Syverson