[tor-bugs] #8443 [Tor]: SSL handshake filtered when MAX_SSL_KEY_LIFETIME_ADVERTISED is 365 days

Tor Bug Tracker & Wiki blackhole at torproject.org
Sun Mar 10 20:49:24 UTC 2013


#8443: SSL handshake filtered when MAX_SSL_KEY_LIFETIME_ADVERTISED is 365 days
------------------------+---------------------------------------------------
 Reporter:  arma        |          Owner:                    
     Type:  defect      |         Status:  needs_review      
 Priority:  normal      |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor         |        Version:                    
 Keywords:  tor-bridge  |         Parent:  #3972             
   Points:              |   Actualpoints:                    
------------------------+---------------------------------------------------

Comment(by arma):

 (It seems we're screwed either way here, if the new firewall strategy is
 to look for a collection of properties. By sticking to the day boundary
 we're blending in better but still reducing our entropy. By *not* sticking
 to the day boundary we blend in worse, but at first glance we're harder to
 fingerprint. The trouble is that the new fingerprint should be "X, Y, and
 also doesn't use a day boundary". This is a good example of why playing
 the "look like ssl" arms race is unwinnable.)

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8443#comment:16>
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