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package App::OATH::Crypt::Rijndael; |
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our $VERSION = '1.20151002'; |
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use strict; |
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use warnings; |
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use Convert::Base32; |
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use Crypt::Rijndael; |
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use Digest::MD5; |
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use String::Random qw{ random_string }; |
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sub new { |
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my ( $class, $args ) = @_; |
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my $self = { |
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'password' => $args->{'password'}, |
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}; |
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bless $self, $class; |
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return $self; |
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} |
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sub _get_crypt_object { |
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my ( $self ) = @_; |
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my $password = $self->{'password'}; |
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my $md5 = Digest::MD5->new(); |
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$md5->add( $password ); |
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my $crypt_key = $md5->digest(); |
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my $crypt = Crypt::Rijndael->new( $crypt_key, Crypt::Rijndael::MODE_CBC() ); |
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return $crypt; |
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} |
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sub encrypt { |
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my ( $self, $data ) = @_; |
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my $worker = $self->_get_crypt_object(); |
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my $pad = random_string( '.' x ( 16 - ( length( $data ) % 16 ) ) ); |
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my $e = $worker->encrypt( $pad . $data ); |
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$e = encode_base32( $e ); |
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return $e; |
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} |
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sub decrypt { |
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my ( $self, $data ) = @_; |
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my $worker = $self->_get_crypt_object(); |
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my $e = decode_base32( $data ); |
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my $u = $worker->decrypt($e); |
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return $u; |
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} |
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1; |
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__END__ |
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=head1 NAME |
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App::OATH::Crypt::Rijndael - Crypto modules for Simple OATH authenticator |
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=head1 DESCRIPTION |
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Crypto modules for basic Rijndael |
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=head1 SYNOPSIS |
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Handles encryption and decryption for the basic Rijndael (not CBC) ciphers |
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=head1 METHODS |
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=over |
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=item I<new()> |
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Instantiate a new object |
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=item I<encrypt($data)> |
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Encrypt the given data |
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=item I<decrypt($data)> |
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Decrypt the given data |
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=back |
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=head1 DEPENDENCIES |
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Convert::Base32 |
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Crypt::Rijndael |
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Digest::MD5 |
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String::Random |
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=head1 AUTHORS |
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Marc Bradshaw E<lt>marc@marcbradshaw.netE<gt> |
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=head1 COPYRIGHT |
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Copyright 2015 |
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This library is free software; you may redistribute it and/or |
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modify it under the same terms as Perl itself. |
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102
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