[tor-commits] [webwml/staging] Exitmap Improvements project idea

sebastian at torproject.org sebastian at torproject.org
Fri Mar 13 23:10:24 UTC 2015

commit 85e16b459be0f85e4d22e2774714b84d8ada349e
Author: Damian Johnson <atagar at torproject.org>
Date:   Sat Feb 21 11:44:02 2015 -0800

    Exitmap Improvements project idea
 getinvolved/en/volunteer.wml |   36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/getinvolved/en/volunteer.wml b/getinvolved/en/volunteer.wml
index 2b8362f..7755501 100644
--- a/getinvolved/en/volunteer.wml
+++ b/getinvolved/en/volunteer.wml
@@ -1484,6 +1484,42 @@ There are several possible directions for this project, including...
+    <a id="exitmap_improvements"></a>
+    <li>
+    <b>Exitmap Improvements</b>
+    <br>
+    Effort Level: <i>Medium</i>
+    <br>
+    Skill Level: <i>Medium</i>
+    <br>
+    Likely Mentors: <i>Philipp (phw)</i>
+    <p>
+The Tor Project makes use of the Python tool <a
+href="https://gitweb.torproject.org/user/phw/exitmap.git/">Exitmap</a> to
+systematically scan for malicious and misbehaving exit relays.  Once such a
+relay is found, it is assigned the BadExit flag which prevents clients from
+selecting the relay as last hop in their circuit.
+    </p>
+    <p>
+Exitmap supports scanning modules which implement a specific scan over
+exit relays.  Examples are the DNS module which checks for DNS poisoning
+or the patching check module which looks out for tampered file
+    </p>
+    <p>
+This project is meant to extend exitmap in several ways.  First, it
+should be made fully autonomous.  That means that exitmap should be able
+to run in the background, periodically fetch new relay descriptors, and
+have a smart algorithm which keeps scanning all exit relays
+periodically.  Second, exitmap should be able to emulate some user
+interaction and dynamically "explore" the web in order to detect
+tampering.  Third, unit tests should be added for existing and new code
+in order to make the code base more robust.
+    </p>
+    </li>
     <a id="improveStegotorus"></a>

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