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Name	Size	Permission
ARC	[ DIR ]	drwxr-xr-x
Algorithm	[ DIR ]	drwxr-xr-x
Canonicalization	[ DIR ]	drwxr-xr-x
AuthorDomainPolicy.pm	8.12 KB	-rw-r--r--
Common.pm	3.95 KB	-rw-r--r--
DNS.pm	7 KB	-rw-r--r--
DkPolicy.pm	6.95 KB	-rw-r--r--
DkSignature.pm	9.22 KB	-rw-r--r--
DkimPolicy.pm	7.5 KB	-rw-r--r--
Key.pm	1.79 KB	-rw-r--r--
KeyValueList.pm	5.04 KB	-rw-r--r--
MessageParser.pm	2.94 KB	-rw-r--r--
Policy.pm	6.27 KB	-rw-r--r--
PrivateKey.pm	4.11 KB	-rw-r--r--
PublicKey.pm	11.55 KB	-rw-r--r--
Signature.pm	22.13 KB	-rw-r--r--
Signer.pm	21.71 KB	-rw-r--r--
SignerPolicy.pm	2.81 KB	-rw-r--r--
TextWrap.pm	7.74 KB	-rw-r--r--
Verifier.pm	24.03 KB	-rw-r--r--

Code Editor : PrivateKey.pm

#!/usr/bin/perl

# Copyright 2005-2007 Messiah College. All rights reserved.
# Jason Long <jlong@messiah.edu>
#
# Copyright (c) 2004 Anthony D. Urso. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.

use strict;
use warnings;

=head1 NAME

Mail::DKIM::PrivateKey - a private key loaded in memory for DKIM signing

=head1 SYNOPSIS

my $key1 = Mail::DKIM::PrivateKey->load(
               File => '/path/to/private.key');

my $key2 = Mail::DKIM::PrivateKey->load(
               Data => $base64);

# use the loaded key in a DKIM signing object
 my $dkim = Mail::DKIM::Signer->new(
               Key => $key2,
             );

=cut

package Mail::DKIM::PrivateKey;
use base 'Mail::DKIM::Key';
use Carp;
*calculate_EM = \&Mail::DKIM::Key::calculate_EM;

=head1 CONSTRUCTOR

=head2 load() - loads a private key into memory

my $key1 = Mail::DKIM::PrivateKey->load(
               File => '/path/to/private.key');

Loads the Base64-encoded key from the specified file.

my $key2 = Mail::DKIM::PrivateKey->load(Data => $base64);

Loads the Base64-encoded key from a string already in memory.

my $key3 = Mail::DKIM::PrivateKey->load(Cork => $openssl_object);

Creates a Mail::DKIM::PrivateKey wrapper object for the given
OpenSSL key object. The key object should be of type
L<Crypt::OpenSSL::RSA>.

=cut

sub load {
    my $class = shift;
    my %prms  = @_;

my $self = bless {}, $class;

$self->{'TYPE'} = ( $prms{'Type'} or 'rsa' );

if ( $prms{'Data'} ) {
        $self->{'DATA'} = $prms{'Data'};
    }
    elsif ( defined $prms{'File'} ) {
        my @data;
        open my $file, '<', $prms{'File'}
          or die "Error: cannot read $prms{File}: $!\n";
        while ( my $line = <$file> ) {
            chomp $line;
            next if $line =~ /^---/;
            push @data, $line;
        }
        $self->{'DATA'} = join '', @data;
        close $file;
    }
    elsif ( $prms{'Cork'} ) {
        $self->{'CORK'} = $prms{'Cork'};
    }
    else {
        croak 'missing required argument';
    }

return $self;
}

=head1 METHODS

=head2 cork() - access the underlying OpenSSL key object

$openssl_object = $key->cork;

The returned object is of type L<Crypt::OpenSSL::RSA>.

=cut

sub convert {
    use Crypt::OpenSSL::RSA;

my $self = shift;

$self->data
      or return;

# have to PKCS1ify the privkey because openssl is too finicky...
    my $pkcs = "-----BEGIN RSA PRIVATE KEY-----\n";

for ( my $i = 0 ; $i < length $self->data ; $i += 64 ) {
        $pkcs .= substr $self->data, $i, 64;
        $pkcs .= "\n";
    }

$pkcs .= "-----END RSA PRIVATE KEY-----\n";

my $cork;

eval { $cork = new_private_key Crypt::OpenSSL::RSA($pkcs); };

$@
      and $self->errorstr($@),
      return;

$cork
      or return;

# segfaults on my machine
    #	$cork->check_key or
    #		return;

$self->cork($cork);

return 1;
}

#deprecated
sub sign {
    my $self = shift;
    my $mail = shift;

return $self->cork->sign($mail);
}

#deprecated- use sign_digest() instead
sub sign_sha1_digest {
    my $self = shift;
    my ($digest) = @_;
    return $self->sign_digest( 'SHA-1', $digest );
}

=head2 sign_digest()

Cryptographically sign the given message digest.

$key->sign_digest('SHA-1', sha1('my message text'));

The first parameter is the name of the digest: one of "SHA-1", "SHA-256".

The second parameter is the message digest as a binary string.

The result should be the signed digest as a binary string.

=cut

sub sign_digest {
    my $self = shift;
    my ( $digest_algorithm, $digest ) = @_;

my $rsa_priv = $self->cork;
    $rsa_priv->use_no_padding;

my $k = $rsa_priv->size;
    my $EM = calculate_EM( $digest_algorithm, $digest, $k );
    return $rsa_priv->decrypt($EM);
}

=head1 AUTHOR

Jason Long, E<lt>jlong@messiah.eduE<gt>

=head1 COPYRIGHT AND LICENSE

This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.8.6 or,
at your option, any later version of Perl 5 you may have available.

=cut

${this.title}

Code Editor : PrivateKey.pm