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#!/usr/bin/perl -w
use strict;
use Getopt::Std;
use Crypt::OpenSSL::RSA;
use Net::DNS::SEC;
my %option;
getopts('k:p:o:h',\%option);
$option{h} || (not defined $option{k}) || (not defined $option{p}) || (not defined $option{o}) && die "usage: keydump.pl -k Kxxx.key -p Kxxx.priv -o pem\n";
my $rsa = Net::DNS::SEC::Private->new($option{p});
open(PFILE, "> $option{o}");
print PFILE $rsa->dump_rsa_private_der;
close(PFILE);
open(KFILE, "< $option{k}");
my @fc = <KFILE>;
close(KFILE);
my $keyrr = Net::DNS::RR->new(join "", @fc);
print $keyrr->flags;
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