int unknownKey = 0;
            final Pattern properyPattern = Pattern.compile(ComponentUtil.getFessConfig().getAppEncryptPropertyPattern());
            final PrimaryCipher cipher = ComponentUtil.getPrimaryCipher();
            final String[] lines = value.split("[\r\n]");
            for (final String line : lines) {
                if (StringUtil.isNotBlank(line)) {
                    final int pos = line.indexOf('=');