Created
June 30, 2014 12:26
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encryption with openssl
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| package Rex::Ext::Encryption::OpenSSL; | |
| use Rex -base; | |
| use Carp; | |
| use Crypt::OpenSSL::RSA; | |
| use MIME::Base64; | |
| require Exporter; | |
| use base qw(Exporter); | |
| use vars qw(@EXPORT); | |
| use constant DEFAULT_CERT_FILE => '/etc/rex/enc.key'; | |
| @EXPORT = qw(decrypt_string); | |
| =begin decrypt_string($file, $str) | |
| Decrypt a given string with the given SSL key file. | |
| =cut | |
| sub decrypt_string { | |
| my ($file, $str) = @_; | |
| if(! $file) { return; } | |
| if(! -f $file) { | |
| $str = $file; | |
| $file = DEFAULT_CERT_FILE; | |
| } | |
| confess 'No key file found.' if(! -f $file); | |
| my $key_string = _get_priv_key($file); | |
| my $o = Crypt::OpenSSL::RSA->new_private_key($key_string); | |
| $o->use_sslv23_padding; | |
| my @strr = split("\n", decode_base64($str)); | |
| my $dec = ""; | |
| for my $str (@strr) { | |
| $dec .= $o->decrypt(decode_base64($str)); | |
| } | |
| return $dec; | |
| } | |
| sub _get_priv_key { | |
| my ($file) = @_; | |
| if(! $file) { | |
| $file = DEFAULT_CERT_FILE; | |
| } | |
| my @lines = IO::File->new($file, 'r')->getlines; | |
| join "\n", @lines; | |
| } | |
| 1; |
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