[Twisted-Python] hmac-sha2-512 - Corrupted MAC on input with OpenSSH

Glyph Lefkowitz glyph at twistedmatrix.com
Thu Dec 22 01:51:08 MST 2016


Sorry to have misdiagnosed your problem.  I am glad that Adi Roiban could help!  Thank you very much for upgrading to the latest version - it helps us a lot for users to try recent versions of the software.  (And when a fix is available, of course, you will have to upgrade to get it, so upgrading regularly makes that easier :))  Hopefully we will be fixing a few bugs in Conch soon to try to address these sorts of protocol bugs.

-glyph

> On Dec 21, 2016, at 6:57 PM, 陈健 <chenjianhappy2008 at 126.com> wrote:
> 
> thank you for your reply!I have updated to the latest version of Twisted 16.6.0, but the problem remains.  More detailed debugging information with -vvv in http://stackoverflow.com/questions/41254398/twisted-hmac-sha2-512-corrupted-mac-on-input-with-openssh <http://stackoverflow.com/questions/41254398/twisted-hmac-sha2-512-corrupted-mac-on-input-with-openssh>  . I really do not know how to do it now.
> 
> Best regards,
> ---jianchen
> 
> 
> 
> 
> At 2016-12-22 08:45:40, "Glyph Lefkowitz" <glyph at twistedmatrix.com> wrote:
> Hi Jianchen,
> 
> As I said on stack overflow, you will need to upgrade to a more recent version of Twisted to get a version with that bug fixed.  If it's still a problem in a current version, you'll need to provide more details, ideally a short SSCCE http://sscce.org <http://sscce.org/> explaining how to get a broken SSH server with conch.
> 
> Thanks for using Twisted & Conch - I hope a simple upgrade will fix it for you!
> 
> -glyph
> 
>> On Dec 20, 2016, at 7:15 PM, 陈健 <chenjianhappy2008 at 126.com <mailto:chenjianhappy2008 at 126.com>> wrote:
>> 
>>  hi:
>>     I write a SSH server with Twisted(15.5.0)  Conch.  But it  don't support hmac-sha2-512 MAC algorithms
>> 
>> .  However I see this problem has been fixed in https://twistedmatrix.com/trac/ticket/8108 <https://twistedmatrix.com/trac/ticket/8108> .  I asked the question in http://stackoverflow.com/questions/41254398/twisted-hmac-sha2-512-corrupted-mac-on-input-with-openssh <http://stackoverflow.com/questions/41254398/twisted-hmac-sha2-512-corrupted-mac-on-input-with-openssh> .
>> Best regards,
>> 
>>  ---jianchen
>> 
>> 
>> 
>>  
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