this post was submitted on 04 Dec 2023
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i don't think I've created an RSA key since 2017
A surprising amount of services (including Azure last I tried) can only handle RSA keys, so after trying ecdsa only for a while I ended up adding a RSA key again.
With that said - it's 2023, in almost all cases you should have your keys in a hardware module nowadays, in which case you'd use a different command for keygeneration.
ed25519 ≠ ecdsa