[tor-bugs] #5217 [- Select a component]: Obfsproxy Tor Browser no longer works in China

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#5217: Obfsproxy Tor Browser no longer works in China
----------------------------------+-----------------------------------------
 Reporter:  hrimfaxi              |          Owner:                     
     Type:  defect                |         Status:  new                
 Priority:  normal                |      Milestone:                     
Component:  - Select a component  |        Version:  Tor: 0.2.3.12-alpha
 Keywords:  GFW China obfsproxy   |         Parent:                     
   Points:                        |   Actualpoints:                     
----------------------------------+-----------------------------------------
 a few days ago I got Obfsproxy Tor Browser
 https://www.torproject.org/projects/obfsproxy. It worked fine at first.
 But today I found out it no longer works.

 Here is my log:
 二月 23 20:06:45.179 [Notice] Tor v0.2.3.12-alpha (git-ff0059b924ec9bf1)
 running on Windows 7 Service Pack 1 [workstation].
 二月 23 20:06:45.180 [Notice] Tor can't help you if you use it wrong! Learn
 how to be safe at https://www.torproject.org/download/download#warning
 二月 23 20:06:45.180 [Notice] This version is not a stable Tor release.
 Expect more bugs than usual.
 二月 23 20:06:45.180 [Notice] Read configuration file "C:\temp\Tor
 Browser\Data\Tor\torrc".
 二月 23 20:06:45.289 [Notice] Initialized libevent version 2.0.16-stable
 using method win32. Good.
 二月 23 20:06:45.289 [Notice] Opening Socks listener on 127.0.0.1:9050
 二月 23 20:06:45.289 [Notice] Opening Control listener on 127.0.0.1:9051
 二月 23 20:06:45.289 [Notice] Parsing GEOIP file .\Data\Tor\geoip.
 二月 23 20:06:45.397 [Notice] No AES engine found; using AES_* functions.
 二月 23 20:06:45.397 [Notice] This OpenSSL has a good implementation of
 counter mode; using it.
 二月 23 20:06:48.509 [Notice] Heartbeat: Tor's uptime is 0:00 hours, with 0
 circuits open. I've sent 0 kB and received 0 kB.
 二月 23 20:06:50.542 [Notice] Bootstrapped 5%: Connecting to directory
 server.
 二月 23 20:06:50.572 [Notice] Bootstrapped 10%: Finishing handshake with
 directory server.
 二月 23 20:06:51.358 [Warning] Problem bootstrapping. Stuck at 10%:
 Finishing handshake with directory server. (DONE; DONE; count 10;
 recommendation warn)
 二月 23 20:06:51.358 [Warning] 12 connections have failed:
 二月 23 20:06:51.358 [Warning] 10 connections died in state handshaking
 (TLS) with SSL state SSLv2/v3 read server hello A in HANDSHAKE
 二月 23 20:06:51.359 [Warning] 2 connections died in state handshaking
 (proxy) with SSL state (No SSL object)

 I didn't have a private obfs2 bridge at hand. So I cannot tell if it was
 because GFW staffs got the Obfsproxy Tor Browser as well and banned all
 its bridges in its configure. But it's possible because there are few
 obfs2 bridge in public.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5217>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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