gpg-agent, authentication key, and ssh

[Matthew Monaco]

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Hi,

(Sorry if this has been asked/explained but my searches return mostly
directions on using ssh-add with gpg-agent.)

As I understand it, I can create an authentication subkey and use some utility
to convert that to an ssh key. If this conversion is possible, then why can't
the gpg-agent consider private auth (sub)keys along with ssh keys loaded via
the SSH_AUTH_SOCK protocol?

===

Also, out of curiosity... Would it be possible to multiplex the GPG_AGENT_INFO
protocol with SSH_AUTH_SOCK? Damien Miller of OpenSSH has talked about unix
socket forwarding [0], but nothing has come of it. I think it'd be a big win
for usability and security if we could easily sign/encrypt on a remote host.
(/Easily/, so no socat).

Best,
Matt

[0] http://marc.info/?l=openssh-unix-dev&m=135207982210122
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