He’s right, SSH is widespread and easy enough to understand for, at least, programmers. It makes for an excellent tool for signatures. Public keys are easy to upload everywhere. And you pass much less as a nerd as when using PGP.
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> SSH keys held on YubiKeys can't be used to decrypt files.
So I'm stuck with gpg. I don't want to store my private keys as a file on a computer just to decrypt stuff.