[tor-bugs] #26083 [Obfuscation/Obfsproxy]: Bridge detector. Fake?

Tor Bug Tracker & Wiki blackhole at torproject.org
Fri May 11 21:47:54 UTC 2018


#26083: Bridge detector. Fake?
-----------------------------------+-----------------------------
 Reporter:  cypherpunks            |          Owner:  cypherpunks
     Type:  defect                 |         Status:  assigned
 Priority:  Medium                 |      Milestone:
Component:  Obfuscation/Obfsproxy  |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:                         |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:
-----------------------------------+-----------------------------

Comment (by cypherpunks):

 [https://link.springer.com/article/10.1007/s11227-018-2268-y Real-time
 identification of three Tor pluggable transports using machine learning
 techniques]
 > We report an empirical study on detection of three widely used Tor
 pluggable transports, namely Obfs3, Obfs4, and ScrambleSuit using four
 learning algorithms. We investigate the performance of Adaboost and Random
 Forests as two ensemble methods. In addition, we study the effectiveness
 of SVM and C4.5 as well-known parametric and nonparametric classifiers.
 These algorithms use general statistics of first few packets of the
 inspected flows. Experimental results conducted on real traffics show that
 all the adopted algorithms can perfectly detect the desired traffics by
 only inspecting first 10–50 packets. The trained classifiers can readily
 be employed in modern network switches and intelligent traffic monitoring
 systems.
 > Computer Engineering Department Bu-Ali Sina University Hamedan Iran

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26083#comment:8>
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