/REVOKE (Alpha/Integrity servers only)

    Requires a trusted network connection to an X display server and
    that the SECURITY extension be enabled on that server.

    Revokes an authorization key created with the /GENERATE
    qualifier.

    If you specify the /REVOKE qualifier, the revoke operation
    is performed before the other actions on the SET DISPLAY
    command. For example, you can use both the /REVOKE and /GENERATE
    qualifiers on the same command line, in any order, to revoke one
    key and generate another.

    Do not use with the /CREATE qualifier.