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Re:The default OpenSSH key encryption is worse than plaintext by fragmede on Friday August 03, 2018 @09:59PM (#17684973)
That's a side effect of the GPG being the back end technology that the Yubikey-based SSH keys are based on.

If you don't want to have to learn gpg (because why should you?) the master/sub keys, PINs, keyservers, and all that can be dumped, just like ssh-keygen is able to create keys without passphrases - not exactly recommended, but still better than the alternative.

Re:The default OpenSSH key encryption is worse than plaintext by lvh on Saturday August 04, 2018 @12:32AM (#17685390)
FWIW: if you really, really don't want to learn GPG: Yubikeys will also speak PKCS11, it's a separate applet, and they ship PKCS11 libs for every major platform. We've used it for OpenVPN in the past (before we had wireguard).

If that's better... I dunno :-)