[tor-bugs] #4743 [Pluggable transport]: obfsproxy: obfs2 server sends handshake message on client connection

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#4743: obfsproxy: obfs2 server sends handshake message on client connection
---------------------------------+------------------------------------------
 Reporter:  asn                  |          Owner:  asn
     Type:  defect               |         Status:  new
 Priority:  normal               |      Milestone:     
Component:  Pluggable transport  |        Version:     
 Keywords:                       |         Parent:     
   Points:                       |   Actualpoints:     
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 obfsproxy/obfs2 servers send their handshake message right after receiving
 a connection from a client.

 It might make more sense to do the server handshake, after receiving the
 client's handshake message, because:
 a) it's more intuitive (?)
 b) the obfs2 spec says so
 c) it's less fingerprintable.

 '''All''' these arguments are '''not''' very convincing, but in any case I
 prepared a patch for this issue.

 If we decide to not apply this patch, we should update the obfs2 spec to
 '''not''' say
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 and the responder replies with:
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4743>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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