-h This option emits a usage message and exits.
-Kdirectory
This option sets the directory in which the key files are to reside.
-r This option indicates to remove the original keyset files after writing the new keyset files.
-vlevel
This option sets the debugging level.
-V This option prints version information.
-Eengine
This option specifies the cryptographic hardware to use, when applicable.
When BIND 9 is built with OpenSSL, this needs to be set to the OpenSSL engine identifier that
drives the cryptographic accelerator or hardware service module (usually pkcs11).
-f This option indicates a forced overwrite and causes dnssec-revoke to write the new key pair, even
if a file already exists matching the algorithm and key ID of the revoked key.
-R This option prints the key tag of the key with the REVOKE bit set, but does not revoke the key.