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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" Net::DNS::RR::NSEC3 \- DNS NSEC3 resource record .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 2 \& use Net::DNS; \& $rr = new Net::DNS::RR(\*(Aqname NSEC3 algorithm flags iterations salt hnxtname\*(Aq); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" Class for \s-1DNSSEC NSEC3\s0 resource records. .PP The \s-1NSEC3\s0 Resource Record (\s-1RR\s0) provides authenticated denial of existence for \s-1DNS\s0 Resource Record Sets. .PP The \s-1NSEC3 RR\s0 lists \s-1RR\s0 types present at the original owner name of the \&\s-1NSEC3 RR. \s0 It includes the next hashed owner name in the hash order of the zone. The complete set of \s-1NSEC3\s0 RRs in a zone indicates which RRSets exist for the original owner name of the \s-1RR\s0 and form a chain of hashed owner names in the zone. .SH "METHODS" .IX Header "METHODS" The available methods are those inherited from the base class augmented by the type-specific methods defined in this package. .PP Use of undocumented package features or direct access to internal data structures is discouraged and could result in program termination or other unpredictable behaviour. .SS "algorithm" .IX Subsection "algorithm" .Vb 2 \& $algorithm = $rr\->algorithm; \& $rr\->algorithm( $algorithm ); .Ve .PP The Hash Algorithm field is represented as an unsigned decimal integer. The value has a maximum of 255. .PP \&\fIalgorithm()\fR may also be invoked as a class method or simple function to perform mnemonic and numeric code translation. .SS "flags" .IX Subsection "flags" .Vb 2 \& $flags = $rr\->flags; \& $rr\->flags( $flags ); .Ve .PP The Flags field is represented as an unsigned decimal integer. The value has a maximum value of 255. .SS "iterations" .IX Subsection "iterations" .Vb 2 \& $iterations = $rr\->iterations; \& $rr\->iterations( $iterations ); .Ve .PP The Iterations field is represented as an unsigned decimal integer. The value is between 0 and 65535, inclusive. .SS "salt" .IX Subsection "salt" .Vb 2 \& $salt = $rr\->salt; \& $rr\->salt( $salt ); .Ve .PP The Salt field is represented as a contiguous sequence of hexadecimal digits. A \*(L"\-\*(R" (unquoted) is used in string format to indicate that the salt field is absent. .SS "saltbin" .IX Subsection "saltbin" .Vb 2 \& $saltbin = $rr\->saltbin; \& $rr\->saltbin( $saltbin ); .Ve .PP The Salt field as a sequence of octets. .SS "hnxtname" .IX Subsection "hnxtname" .Vb 2 \& $hnxtname = $rr\->hnxtname; \& $rr\->hnxtname( $hnxtname ); .Ve .PP The Next Hashed Owner Name field points to the next node that has authoritative data or contains a delegation point \s-1NS\s0 RRset. .SS "typelist" .IX Subsection "typelist" .Vb 3 \& @typelist = $rr\->typelist; \& $typelist = $rr\->typelist; \& $rr\->typelist( @typelist ); .Ve .PP The Type List identifies the RRset types that exist at the \s-1NSEC RR\s0 owner name. When called in scalar context, the list is interpolated into a string. .SS "covered, matched" .IX Subsection "covered, matched" .Vb 1 \& print "covered" if $rr\->covered{\*(Aqexample.foo\*(Aq} .Ve .PP \&\fIcovered()\fR returns a nonzero value when the the domain name provided as argument is covered as defined in the \s-1NSEC3\s0 specification: .PP .Vb 5 \& To cover: An NSEC3 RR is said to "cover" a name if the hash of the \& name or "next closer" name falls between the owner name and the \& next hashed owner name of the NSEC3. In other words, if it proves \& the nonexistence of the name, either directly or by proving the \& nonexistence of an ancestor of the name. .Ve .PP Similarly \fImatched()\fR returns a nonzero value when the domainname in the argument matches as defined in the \s-1NSEC3\s0 specification: .PP .Vb 3 \& To match: An NSEC3 RR is said to "match" a name if the owner name \& of the NSEC3 RR is the same as the hashed owner name of that \& name. .Ve .SS "optout" .IX Subsection "optout" .Vb 2 \& $rr\->optout(0); \& $rr\->optout(1); \& \& if ( $rr\->optout ) { \& ... \& } .Ve .PP Boolean Opt Out flag. .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright (c)2007,2008 NLnet Labs. Author Olaf M. Kolkman .PP All Rights Reserved .PP 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. .PP \&\s-1THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS\s0; \s-1IN 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.\s0 .PP Package template (c)2009,2012 O.M.Kolkman and R.W.Franks. .SH "SEE ALSO" .IX Header "SEE ALSO" perl, Net::DNS, Net::DNS::RR, \s-1RFC5155\s0 .PP Hash Algorithms