[Twisted-Python] conch problem with ecdsa-sha2-nistp256 host key?

[Glyph Lefkowitz]

It works:

$ conch twistedmatrix.com echo hooray
hooray
      $ conch --version
Twisted version: 16.6.0dev0
$ 

That's using an RSA host key though.  It seems that the hosts I have using ECDSA keys (buildbot.twistedmatrix.com <http://buildbot.twistedmatrix.com/>, for example) still don't work with conch.  Is that expected at this point?

-glyph

> On Dec 20, 2016, at 2:32 PM, Craig Rodrigues <rodrigc at crodrigues.org> wrote:
> 
> On Friday, December 2, 2016, Glyph Lefkowitz <glyph at twistedmatrix.com <mailto:glyph at twistedmatrix.com>> wrote:
> I think there might be a regression in 16.6.0.
> 
> For every version up to 16.6.0, I can do 'conch twistedmatrix.com <http://twistedmatrix.com/>' in a shell and it works fine.
> 
> I believe that I have fixed this in trunk.
> Can you try this with conch in trunk?
> 
> This works for me in trunk:
> 
> 1.  Start with an empty ~/.ssh/known_hosts file , or one with an ecdsa key for myhost.com <http://myhost.com/>
> 2.  ssh myhost.com <http://myhost.com/>
> 3.  log out of myhost.com <http://myhost.com/>
> 3.  see that ~/.ssh/known_hosts contains an ecdsa host key for myhost.com <http://myhost.com/>
> 4.  conch myhost.com <http://myhost.com/>
> 5.  successfully log into myhost.com <http://myhost.com/> with conch
> 
> Before the latest fixes, I would get a bad host key error in step 5.
> 
> Many thanks to the0id and acabhishek942 for providing the ecdsa fixes to conch.
> 
> --
> Craig
>  
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