dnssec-signkey — DNSSEC key set signing tool
dnssec-signkey  [-a] [-c ] [class-s ] [start-time-e ] [end-time-h] [-p] [-r ] [randomdev-v ] {keyset} {key...}level
        dnssec-signkey signs a keyset.  Typically
	the keyset will be for a child zone, and will have been generated
	by dnssec-makekeyset.  The child zone's keyset
	is signed with the zone keys for its parent zone.  The output file
	is of the form signedkey-nnnn., where
	nnnn is the zone name.
    
Verify all generated signatures.
classSpecifies the DNS class of the key sets.
start-time
	       Specify the date and time when the generated SIG records
	       become valid.  This can be either an absolute or relative
	       time.  An absolute start time is indicated by a number
	       in YYYYMMDDHHMMSS notation; 20000530144500 denotes
	       14:45:00 UTC on May 30th, 2000.  A relative start time is
	       indicated by +N, which is N seconds from the current time.
	       If no start-time is specified, the current
	       time is used.
	  
end-time
	       Specify the date and time when the generated SIG records
	       expire.  As with start-time, an absolute
	       time is indicated in YYYYMMDDHHMMSS notation.  A time relative
	       to the start time is indicated with +N, which is N seconds from
	       the start time.  A time relative to the current time is
	       indicated with now+N.  If no end-time is
	       specified, 30 days from the start time is used as a default.
	  
Prints a short summary of the options and arguments to dnssec-signkey.
Use pseudo-random data when signing the zone. This is faster, but less secure, than using real random data. This option may be useful when signing large zones or when the entropy source is limited.
randomdev
	       Specifies the source of randomness.  If the operating
	       system does not provide a /dev/random
	       or equivalent device, the default source of randomness
	       is keyboard input.  randomdev specifies
	       the name of a character device or file containing random
	       data to be used instead of the default.  The special value
	       keyboard indicates that keyboard
	       input should be used.
	  
levelSets the debugging level.
The file containing the child's keyset.
The keys used to sign the child's keyset.
        The DNS administrator for a DNSSEC-aware .com
	zone would use the following command to sign the
	keyset file for example.com
	created by dnssec-makekeyset with a key generated
	by dnssec-keygen:
    
        dnssec-signkey keyset-example.com. Kcom.+003+51944
    
        In this example, dnssec-signkey creates
	the file signedkey-example.com., which
	contains the example.com keys and the
	signatures by the .com keys.