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Re: [tor-bugs] #6033 [Tor Bridge]: Tor v2 handshake does not work with openssl 1.0.1 (was: 0.2.2.35 can't connect to 0.2.3.15-alpha bridges)

#6033: Tor v2 handshake does not work with openssl 1.0.1
------------------------+---------------------------------------------------
 Reporter:  murble      |          Owner:                     
     Type:  defect      |         Status:  new                
 Priority:  critical    |      Milestone:  Tor: 0.2.2.x-final 
Component:  Tor Bridge  |        Version:  Tor: 0.2.3.15-alpha
 Keywords:              |         Parent:                     
   Points:              |   Actualpoints:                     
------------------------+---------------------------------------------------
Changes (by nickm):

  * priority:  major => critical


Comment:

 Further testing shows that when both sides are using a released version of
 openssl 1.0.1 (in other words, not openssl 1.0.1-beta1), the v2 handshake
 does not complete.

 Please correct me if we get any data to contradict the above.

 This issue is probably either:
   * A bug in OpenSSL 1.0.1, or
   * A problem with how Tor is using OpenSSL 1.0.1.

 To confirm 1.0.1, we could write a trivial SSL client and SSL server using
 openssl 1.0.1, and show that they cannot renegotiate.  I think this might
 be worth looking into, since Libevent's unit tests are seeing some issues
 with OpenSSL 1.0.1 and renegotiation as well, and Libevent doesn't do half
 of the crazy stuff that Tor tries.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6033#comment:6>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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