From: Gordon Thiesfeld <gthiesfeld@...>
Date: 2008-04-17T00:04:15+09:00
Subject: Re: Windows, Net::SSH: how do I use a private key (w / passw

On Wed, Apr 16, 2008 at 7:24 AM, Robert Dober <robert.dober@gmail.com> wrote:
> On Wed, Apr 16, 2008 at 6:01 AM, Gordon Thiesfeld <gthiesfeld@gmail.com> wrote:
>  <snip>
>
> >  I think you can probably do this now, but there are some quirks.  You
>  >  can pass in a :keys option to Net::SSH.start[1] and point it to your
>  >  keys (I think you need both the private and public key on your side).
>  >  Also, putty private keys aren't the same as OpenSSH keys.  PuttyGen
>  >  has an option to convert to OpenSSH keys, but I didn't have any luck
>  >  using that with Net::SSH.
>  AFAIR you still need to use keygen to convert the key a second time. I
>  know it does not make a lot of sense but happened to me, but maybe the
>  person sending me the key made an error on the client ( spelling as
>  PuTTY )
>  HTH
>  Robert

Ok, the trick for me was to export the PuTTY private key to an OpenSSH
key in PuTTYgen, then cut and paste the public key into a file, rather
than using the "Save public key" button.

C:\ruby\scripts\ssh_test>dir /b
key
key.pub
ssh.rb

C:\ruby\scripts\ssh_test>ssh.rb
Wed Apr 16 10:01:24 CDT 2008

# ssh.rb
require 'net/ssh'

Net::SSH.start( 'server' , :keys =>['key']) do |s|
    s.process.popen3( "date" ){ |input, output, error| puts output.read }
end