rndc-confgen(8) on macOS
The text 2e75f4c15481, as Mac OS X 10.4.11.x86, Mac OS X 10.4.11.ppc, Mac OS X 10.4.10.x86, Mac OS X 10.4.10.ppc shipped it.
rndc key generation tool
Flags it lists
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-a -
-b -
-c -
-h -
-k -
-p -
-r -
-s -
-t -
-u