[tor-bugs] #11610 [Obfsproxy]: obfsproxy does not work on CentOS 6

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#11610: obfsproxy does not work on CentOS 6
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     Reporter:  yawning    |      Owner:  asn
         Type:  defect     |     Status:  new
     Priority:  normal     |  Milestone:
    Component:  Obfsproxy  |    Version:
   Resolution:             |   Keywords:
Actual Points:             |  Parent ID:
       Points:             |
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Comment (by yawning):

 I wrote a working `Crypto.Util.Counter` replacement, but it turns out that
 pycrypto 2.0.1's CTR mode only supports processing data that's a multiple
 of the block cipher's block size.

 This was fixed in pycrypto 2.1.0alpha2:
 {{{
         - Block ciphers created with MODE_CTR can now operate on strings
 of
           any size, rather than just multiples of the underlying cipher's
           block size.
 }}}

 Since `Crypto.Util.Counter` was added in 2.1.0alpha1, any version of
 pycrypto that has a non-brain damaged CTR-AES128 implementation will have
 the utility module in question.

 Unless anyone has any objections, I will close this as invalid since
 obfsproxy does indeed work with the system provided python and most of the
 dependencies.

--
Ticket URL: <https://trac.torproject.org:443/projects/tor/ticket/11610#comment:2>
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