OpenPGP based SSH authentification

Mike Ingle mike at
Mon Jun 15 21:54:09 CEST 2015

You can use the gpg-agent for ssh auth.
In gpg-agent.conf you put:

Than you can run the agent like this:
"c:\Program Files (x86)\GNU\GnuPG.v2\bin\gpg-agent.exe" --daemon 
[assuming that is where your GPG is installed]

Putty will then login using the key. I have this working with a PGP 

On 6/15/2015 11:05 AM, theoneandonly at wrote:
> Hello GnuPG users,
> is there a way of OpenPGP based SSH authentification?
> I mean, there's a way with the gnupg ssh-auth-agent if I remember 
> correctly.
> I was wondering if there's some kind of PAM module or something like this.
> I'd like to login to my SSH server with my YubiKey most likely without 
> any other software (except PuTTy (for Win) or the Terminal (on Linux, 
> Mac OS X).
> Someone who can share experience in here?
> Thanks in advance and best regards
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> Gnupg-users at

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