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public key, I reckon...

Is it different than what you see today, if you go to Tools -> Accounts, select a specific account and look under 'Authorized Public SSH Keys' ?
should be similar in look and feel (if not borrowed completely from there)

This RFE is about showing the host key of the host.

No. In the authorized keys a user can specify which remote user (identified through a key) can login without a password. So it is not related to the host key.

Bug tickets must have version flags set prior to targeting them to a release. Please ask maintainer to set the correct version flags and only then set the target milestone.

This feature can be solved in the upstream Cockpit code-base.

https://github.com/cockpit-project/cockpit/issues/4077

Some upstream here: https://github.com/cockpit-project/cockpit/pull/4310

This will be part of Cockpit 0.114 upstream release.

Integration test here: https://github.com/cockpit-project/cockpit/pull/4310/files#diff-0a8ff0a7d9bdf07635857eda75335ca6R75

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-1442.html