return "10000";
                case FessConfig.APP_CIPHER_ALGORITHM:
                    return "aes";
                case FessConfig.APP_CIPHER_KEY:
                    return "___change__me___";
                case FessConfig.APP_ENCRYPT_PROPERTY_PATTERN:
                    return ".*password|.*key|.*token|.*secret";
                case FessConfig.APP_EXTENSION_NAMES:

    /** The key of the configuration. e.g. aes */
    String APP_CIPHER_ALGORITHM = "app.cipher.algorithm";

    /** The key of the configuration. e.g. ___change__me___ */
    String APP_CIPHER_KEY = "app.cipher.key";

    /** The key of the configuration. e.g. sha256 */
    String APP_DIGEST_ALGORITHM = "app.digest.algorithm";