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Let's say I make an id of type ed25519-sk and have it reside on my yubikey. OpenSSH makes two files, id_ed25519_sk, a stub private key, and id_ed25519_sk.pub the corresponding public key.

If I lose these, can I regenerate them with just the external physical key?

nimish
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  • Related to (but not a duplicate of) [How sensitive is the primary key stub of an ed25519 security key (~/.ssh/id_ed25519_sk)?](https://security.stackexchange.com/q/258509/42391) – Adam Katz Jan 12 '22 at 18:23

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