public static function decrypt($data)
{
// Don't do anything with empty data
$data = trim($data);
if (empty($data) || is_string($data) == false && is_numeric($data) == false) {
return null;
}
// Detect data that is not encrypted
if (strstr($data, '|=|') == false) {
return $data;
}
$array = explode('|=|', $data);
$encrypted = MageBridgeEncryptionHelper::base64_decode($array[0], true);
$key = MageBridgeEncryptionHelper::getSaltKey($array[1]);
$iv = substr($key, 0, mcrypt_get_iv_size(MCRYPT_CAST_256, MCRYPT_MODE_CFB));
try {
$decrypted = mcrypt_cfb(MCRYPT_CAST_256, $key, $encrypted, MCRYPT_DECRYPT, $iv);
$decrypted = trim($decrypted);
return $decrypted;
} catch (Exception $e) {
Mage::getSingleton('magebridge/debug')->error("Error while decrypting: " . $e->getMessage());
return null;
}
}
public static function getSaltKey($string)
{
return MageBridgeEncryptionHelper::getSaltKey($string);
}
