Two questions: 1) can paramiko.RSAKey handle other encryption schemes (ED25519) ? If not, folks using non-RSA keys wouldn't be affected.. 2) Having a (strong)

Two questions: 1) can paramiko.RSAKey handle other encryption schemes (ED25519) ? If not, folks using non-RSA keys wouldn't be affected.. 2) Having a (strong) passphrase for your key file would help prevent the perp from doing any harm with the key(s), or at the very least would give you time to invalidate the key(s). Right?