u2f seed

[Christian Weisgerber]

David Lang:

> not supporting authentication from multiple machines seems to defeat the
> purpose of adding u2f support.

It works just like other SSH key types.  You have a private SSH key
and a public one, and you can copy the private key to multiple
machines or load it into ssh-agent and use agent forwarding.

The only difference is that the private SSH key on its own is
insufficient and requires the cooperation of the FIDO/U2F authenticator.

-- 
Christian "naddy" Weisgerber                          naddy at mips.inka.de