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In reply to It's Now Possible To Sign Arbitrary Data With Your SSH Keys

Reader Michael on 2022-04-25 at 11:54:

Since OpenSSH 8.2¹ it's also possible to protect an ssh key with a FIDO/U2F key. See eg. https://github.com/vorburger/vorburger.ch-Notes/blob/develop/security/ed25519-sk.md

¹ Release notes: https://www.openssh.com/txt/release-8.2

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