NAME

       Net::DNS::RR::DS - DNS DS resource record

SYNOPSIS

       "use Net::DNS::RR;"

DESCRIPTION

       Class for Delegation signer (DS) resource records.

METHODS

       In addition to the regular methods

   create
       This constructor takes a key object as argument and will return a DS RR object.

       $dsrr=create Net::DNS::RR::DS($keyrr, (
                         digtype => "SHA256" ); $keyrr->print; $dsrr->print;

       The digest type defaults to SHA1.

   verify
       The verify method will return 1 if the hash over the key provided in the argument matches
       the data in the $dsrr itself i.e. if the DS pointing to the DNSKEY from the argument. It
       will return 0 otherwise.

       $dsrr->($keyrr);

   algorithm
           print "algoritm" = ", $rr->algorithm, "\n";

       Returns the RR's algorithm field in decimal representation

           1 = MD5 RSA
           2 = DH
           3 = DSA
           4 = Elliptic curve

   digest
           print "digest" = ", $dsrr->digest, "\n";

       Returns the SHA1 digest over the label and key in hexadecimal representation

   digestbin
           $digestbin =  $dsrr->digestbin;

       Returns the digest as  binary material

   keytag
           print "keytag" ." = ". $dsrr->keytag . "\n";

       Returns the key tag of the key. (RFC2535 4.1.6)

   digtype
          print "digest type" . " = " . $dsrr->digtype ."\n";

       Returns the digest type of the DS RR.

   babble
          print $dsrr->babble;

       Returns the 'BabbleBubble' representation of the digest. The 'BabbleBubble' string may be
       handy for telephone confirmation.

       The 'BabbleBubble' string returned as a comment behind the RDATA when the string method is
       called.

COPYRIGHT

       Copyright (c) 2001-2005  RIPE NCC.  Author Olaf M. Kolkman <olaf@net-dns.org>

       All Rights Reserved

       Permission to use, copy, modify, and distribute this software and its documentation for
       any purpose and without fee is hereby granted, provided that the above copyright notice
       appear in all copies and that both that copyright notice and this permission notice appear
       in supporting documentation, and that the name of the author not be used in advertising or
       publicity pertaining to distribution of the software without specific, written prior
       permission.

       THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED
       WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
       SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
       OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
       ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

       Based on, and contains, code by Copyright (c) 1997 Michael Fuhr.

SEE ALSO

       http://www.net-dns.org/ <http://www.net-dns.org/>

       perl(1), Net::DNS, Net::DNS::Resolver, Net::DNS::Packet, Net::DNS::Header,
       Net::DNS::Question, Net::DNS::RR, RFC 4033, RFC4034, RFC4035