The key-manahement argument

Achim Gratz Stromeko at nexgo.de
Mon Jan 21 19:35:32 UTC 2019


Richard Laager via devel writes:
> Opportunistic NTS is only applicable when the administrator has not
> specified NTS. In that scenario, if ntpd doesn't do opportunistic NTS,
> then it's going to do plain NTP. How is the risk that a MITM could
> downgrade you only at startup worse than always being "downgraded"
> because you didn't even try to upgrade to NTS?

The risk is that you don't know you've been targeted in that way.
Anyway, I'm not a big fan of such heuristics.  Explain the options and
let the user chose.

The NTP pool will need to advertise separate NTS-KE anyway, at least I don't
see an easy way around that.


Regards,
Achim.
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