Provided by: libnet-dns-sec-perl_0.21-1_all bug

NAME

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

SYNOPSIS

           use Net::DNS;
           $rr = new Net::DNS::RR('name DS keytag algorithm digtype digest');

DESCRIPTION

       Class for DNS Delegation Signer (DS) resource record.

METHODS

       The available methods are those inherited from the base class augmented by the type-
       specific methods defined in this package.

       Use of undocumented package features or direct access to internal data structures is
       discouraged and could result in program termination or other unpredictable behaviour.

   keytag
           $keytag = $rr->keytag;
           $rr->keytag( $keytag );

       The 16-bit numerical key tag of the key. (RFC2535 4.1.6)

   algorithm
           $algorithm = $rr->algorithm;
           $rr->algorithm( $algorithm );

       Decimal representation of the 8-bit algorithm field.

       algorithm() may also be invoked as a class method or simple function to perform mnemonic
       and numeric code translation.

   digtype
           $digtype = $rr->digtype;
           $rr->digtype( $digtype );

       Decimal representation of the 8-bit digest type field.

       digtype() may also be invoked as a class method or simple function to perform mnemonic and
       numeric code translation.

   digest
           $digest = $rr->digest;
           $rr->digest( $digest );

       Hexadecimal representation of the digest over the label and key.

   digestbin
           $digestbin = $rr->digestbin;
           $rr->digestbin( $digestbin );

       Binary representation of the digest over the label and key.

   babble
           print $rr->babble;

       The babble() method returns the 'BubbleBabble' representation of the The babble() method
       returns the 'BubbleBabble' representation of the digest if the Digest::BubbleBabble
       package is available, otherwise an empty string is returned.

       BubbleBabble represents a message digest as a string of plausible words, to make the
       digest easier to verify.  The "words" are not necessarily real words, but they look more
       like words than a string of hex characters.

       The 'BubbleBabble' string is appended as a comment to the RDATA when the string method is
       called.

   create
           use Net::DNS::SEC;

           $dsrr = create Net::DNS::RR::DS($keyrr, digtype => 'SHA-256' );
           $keyrr->print;
           $dsrr->print;

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

       The digest type defaults to SHA-1.

   verify
           $verify = $dsrr->verify($keyrr);

       The boolean verify method will return true if the hash over the key RR provided as the
       argument conforms to the data in the DS itself i.e. the DS points to the DNSKEY from the
       argument.

COPYRIGHT

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

       Portions Copyright (c)2013 Dick Franks.

       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 prior written
       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.

       Package template (c)2009,2012 O.M.Kolkman and R.W.Franks.

SEE ALSO

       perl, Net::DNS, Net::DNS::RR, RFC4034, RFC3658

       Algorithm Numbers <http://www.iana.org/assignments/dns-sec-alg-numbers>, Digest Types
       <http://www.iana.org/assignments/ds-rr-types>