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Date:	Mon, 23 Jan 2012 10:57:00 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Putty and pre-shared keys with Cygwin's sshd
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On Jan 22 16:30, Andrew DeFaria wrote:
> On 1/22/2012 10:21 AM, Len Giambrone wrote:
> >I believe that PuTTy is SSH2, while Cygwin is OpenSSH.  You can convert them using
> >ssh-keygen:
> >
> >ssh-keygen -f putty_key -i>  openssh_key
> I tried this. It didn't work. Same error as before.
> 
> Read 8.2.12 of the Putty help file - had no idea there was a format
> difference I had to do anything about! Tried what it said to do, use
> Conversions: Export to OpenSSH. But that key looks like:
> 
> Ltsdo-adefaria:more /tmp/sshkey
> -----BEGIN DSA PRIVATE KEY-----
> MIIBuwIBAAKBgQDI+RkFLTib52+4+OzI+035r8fIConadaJuXNd+ZRSOvoLJar44
> 1m7jgSnp2A52LJ8LJeC99c7NQ1BBoHueRkgBWReH7orWH2T/vlFrPRgIU48vvgPH
> 4OrLFRtmN/uYj/BTbWFilN2jFZiiESSr4pSOPNNSblqj+UYXfFxc2ZrhIQIVANFm
> lV9qPmupo+/ZQqw1uTRypqve98yI2ZbXTuwIFLAps2T4rQKjmgmfghNWgmUEP0Sm
> V8qEfW8JvSh773fwYgtsAfos/+GPqc7V+UysKT2Na+5sOgqALSX6yfLBi0xAA2Iy
> ToRtrHupAoGAOS7f1yopMnELx7GhAtEtREN1zDikwa8dVhilM1M38+eZH4Z0Wd/3
> H9W2iKKYjgj8lIIYGiXUxjEWhA3n/3N6HDT0O5X97Pp+dM7oHlAaKtGl0Y9ao+Zn
> SmXSquCsokL+1mh1baIe+VcyV2EA7Uat/B0zIlGpwfq4bQv0DmCjl4gCFDBh6pvn
> ckhR34s8s2jaQnkdgv+p
> -----END DSA PRIVATE KEY-----
> 
> Whereas all of the lines of my ~/.ssh/authorized_keys files are
> single, loooong lines.

Maybe you *should* read the man pages.  The above is the private part of
the key.  authorized_keys is the file on the server side so it hold only
public keys.

> Can anybody give me clear, concise but complete end to end
> instructions on how to get this to work?

There are tons of that in the net.  Just google for "putty openssh".


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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