Seems that even if SHA2 is in use the actual keys are still of type rsa-ssh? This whole thing is unclear, will investigate further.
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I hope we can shoehorn rsa-sha2-256 into working with Yubikeys and other hardware tokens, or else they've just become rather useless.https://twitter.com/juliocesarfort/status/1265541783741706241 …
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Okay, we're already using the newer algorithms. This makes sense, as RSA keys can be used with any hash. ssh -vvv with a yubikey says: debug3: sign_and_send_pubkey: signing using rsa-sha2-512 SHA256:[...] We're fine. No need to panic.
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This change is regarding host keys, not authentication keypairs.
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Aren't they exactly the same thing?
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