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 ldns-keygen(1)                                               ldns-keygen(1)
                                 27 May 2008



 NAME
      ldns-keygen - generate a DNSSEC key pair

 SYNOPSIS
      ldns-keygen [ OPTION ] DOMAIN


 DESCRIPTION
      ldns-keygen is used to generate a private/public keypair. When run, it
      will create 3 files; a .key file with the public DNSKEY, a .private
      file with the private keydata and a .ds with the DS record of the
      DNSKEY record.

      ldns-keygen can also be used to create symmetric keys (for TSIG) by
      selecting the appropriate algorithm: hmac-md5.sig-alg.reg.int,
      hmac-sha1 or hmac-sha256.  In that case no DS record will be created
      and no .ds file.

      ldns-keygen prints the basename for the key files: K<name>+<alg>+<id>


 OPTIONS
      -a <algorithm>
           Create a key with this algorithm. Specifying 'list' here gives a
           list of supported algorithms.  Several alias names are also
           accepted (from older versions and other software), the list gives
           names from the RFC.  Also the plain algo number is accepted.


      -b <bits>
           Use this many bits for the key length.


      -k   When given, generate a key signing key. This just sets the flag
           field to 257 instead of 256 in the DNSKEY RR in the .key file.


      -r device
           Make ldns-keygen use this file to seed the random generator with.
           This will default to /dev/random.


      -v   Show the version and exit


 AUTHOR
      Written by the ldns team as an example for ldns usage.


 REPORTING BUGS
      Report bugs to <ldns-team@nlnetlabs.nl>.



                                    - 1 -         Formatted:  April 15, 2024






 ldns-keygen(1)                                               ldns-keygen(1)
                                 27 May 2008



 COPYRIGHT
      Copyright (C) 2005-2008 NLnet Labs. This is free software. There is NO
      warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
      PURPOSE.


















































                                    - 2 -         Formatted:  April 15, 2024