ssh-keygen(1) on OpenBSD
The text be57f9357568, as OpenBSD 7.3 shipped it.
OpenSSH authentication key utility
Flags it lists
-
-A -
-B -
-C -
-D -
-E -
-H -
-I -
-K -
-L -
-M -
-N -
-O -
-P -
-Q -
-U -
-V -
-Y -
-Z -
-a -
-b -
-c -
-e -
-f -
-g -
-h -
-i -
-k -
-l -
-m -
-n -
-p -
-q -
-r -
-s -
-u -
-v -
-w -
-y -
-z