80 lines
1.8 KiB
Perl
80 lines
1.8 KiB
Perl
##@file
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# Extend Crypt::Rijndael to add base64 encoding to cypher functions
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##@class
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# Extend Crypt::Rijndael to add base64 encoding to cypher functions.
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# $Lemonldap::NG::Common::Crypto::msg contains Crypt::Rijndael errors.
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package Lemonldap::NG::Common::Crypto;
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use strict;
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use Crypt::Rijndael;
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use MIME::Base64;
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use bytes;
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use base qw(Crypt::Rijndael);
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our $VERSION = '1.0.0';
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our $msg;
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## @cmethod Lemonldap::NG::Common::Crypto new(array param)
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# Constructor
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# @param @param Crypt::Rijndael::new() parameters
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# @return Lemonldap::NG::Common::Crypto object
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sub new {
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my $class = shift;
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my $self = Crypt::Rijndael->new(@_);
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return bless $self, $class;
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}
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## @method string encrypt(string data)
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# Encrypt $data and return it in Base64 format
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# @param data datas to encrypt
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# @return encrypted datas in Base64 format
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sub encrypt {
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my ( $self, $str ) = @_;
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my $tmp;
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eval {
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$tmp = encode_base64(
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$self->SUPER::encrypt(
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$str . "\0" x ( 16 - bytes::length($str) % 16 )
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),
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''
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);
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};
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if ($@) {
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$msg = "Crypt::Rijndael error : $@";
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return undef;
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}
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else {
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$msg = '';
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return $tmp;
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}
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}
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## @method string decrypt(string data)
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# Decrypt $data and return it in
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# @param data datas to decrypt in Base64 format
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# @return decrypted datas
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sub decrypt {
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my $self = shift;
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my $tmp = shift;
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$tmp =~ s/%2B/\+/ig;
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$tmp =~ s/%2F/\//ig;
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$tmp =~ s/%3D/=/ig;
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eval { $tmp = $self->SUPER::decrypt( decode_base64($tmp) ); };
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if ($@) {
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$msg = "Crypt::Rijndael error : $@";
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return undef;
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}
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else {
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$msg = '';
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# Obscure Perl re bug...
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$tmp .= "\0";
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$tmp =~ s/\0*$//;
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return $tmp;
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}
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}
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1;
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