This assumes that the server is running a recent enough OpenSSH. Configured with this enabled. For Linux servers, sure. For routers, less obviously so.

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Liskni_si a day ago | parent [-]

Fair point. Ubuntu 18.04 won't support this. :-)

	▲	knorker 7 hours ago \| parent [-]
		Yeah but more importantly neither will those multi million dollar routers your ISP uses. Nor their ten thousand thousand dollar switches. And they won't be replacing these just because they're missing FIDO. And they can't "just" be upgraded because they aren't necessarily just Linux boxes in a trenchcoat. Nor are they necessarily running any version of OpenSSH.