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.\" ========================================================================
.\"
.IX Title "Net::DNS::RR::SSHFP 3"
.TH Net::DNS::RR::SSHFP 3 "2016-05-27" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Net::DNS::RR::SSHFP \- DNS SSHFP resource record
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&    use Net::DNS;
\&    $rr = new Net::DNS::RR(\*(Aqname SSHFP algorithm fptype fp\*(Aq);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\s-1DNS SSH\s0 Fingerprint (\s-1SSHFP\s0) resource records.
.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 8\-bit algorithm number describes the algorithm used to
construct the public key.
.SS "fptype"
.IX Subsection "fptype"
.Vb 2
\&    $fptype = $rr\->fptype;
\&    $rr\->fptype( $fptype );
.Ve
.PP
The 8\-bit fingerprint type number describes the message-digest
algorithm used to calculate the fingerprint of the public key.
.SS "fingerprint"
.IX Subsection "fingerprint"
.SS "fp"
.IX Subsection "fp"
.Vb 2
\&    $fp = $rr\->fp;
\&    $rr\->fp( $fp );
.Ve
.PP
Hexadecimal representation of the fingerprint digest.
.SS "fpbin"
.IX Subsection "fpbin"
.Vb 2
\&    $fpbin = $rr\->fpbin;
\&    $rr\->fpbin( $fpbin );
.Ve
.PP
Returns opaque octet string representing the fingerprint digest.
.SS "babble"
.IX Subsection "babble"
.Vb 1
\&    print $rr\->babble;
.Ve
.PP
The \fIbabble()\fR method returns the 'BabbleBubble' representation of
the fingerprint if the Digest::BubbleBabble package is available,
otherwise an empty string is returned.
.PP
Bubble babble represents a message digest as a string of \*(L"real\*(R"
words, to make the fingerprint easier to remember. The \*(L"words\*(R"
are not necessarily real words, but they look more like words
than a string of hex characters.
.PP
Bubble babble fingerprinting is used by the \s-1SSH2\s0 suite (and
consequently by Net::SSH::Perl, the Perl \s-1SSH\s0 implementation)
to display easy-to-remember key fingerprints.
.PP
The 'BubbleBabble' string is appended as a comment to the \s-1RDATA\s0
when the string method is called.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c)2007 Olaf Kolkman, NLnet Labs.
.PP
All rights reserved.
.PP
Package template (c)2009,2012 O.M.Kolkman and R.W.Franks.
.SH "LICENSE"
.IX Header "LICENSE"
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 SOFTWARE IS PROVIDED \*(L"AS IS\*(R", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.\s0
.SH "SEE ALSO"
.IX Header "SEE ALSO"
perl, Net::DNS, Net::DNS::RR, \s-1RFC4255\s0