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> If you lose your private SSH key, you regenerate it, and the server admin resets your public key. Zero data loss.

This is exactly the same data loss as when you lose your master password.

Just like you store multiple passwords in your password vault, your SSH key can give you access to multiple servers.

If you lose it, you have to "reset" your public key on _every_ server, just like you have to reset _every_ password that you stored in your password vault.



That's true.

Though of the purposes of having password manager is managing with large numbers of disparate systems.

Whereas an SSH is simply the authentication mechanism, and may or may not be shared across large numbers of systems.




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