[Bug 2602] (Feature request) Verify host using key in destination user account

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2602

Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |WONTFIX
             Status|NEW                         |RESOLVED
                 CC|                            |djm at mindrot.org

--- Comment #1 from Damien Miller <djm at mindrot.org> ---
This isn't possible without breaking the guarantees that host key
checking is supposed to provide.

For the behaviour that you want, ssh would have to ignore a host key
verification failure at connection time, proceed with authentication
and fetch (presumably using sftp) the host key from the target system.
This is a substantial amount of work but, worse, it would require ssh
to complete authentication to a system that it does not trust.

Completing authentication means sending user credentials to the remote
server. This would allow phishing or connection spoofing by hostile
servers.

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