Method Name,Reference,Note
publickey,[RFC4252],Section 7
password,[RFC4252],Section 8
hostbased,[RFC4252],Section 9
none,[RFC4252],Section 5.2
keyboard-interactive,[RFC4256],
gssapi-with-mic,[RFC4462],
gssapi-keyex,[RFC4462],
gssapi,[RFC4462],
external-keyx,[RFC4462],