* The value is, e.g. aes <br>
     * comment: Cipher algorithm used for encryption.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getAppCipherAlgorithm();

    /**
     * Get the value for the key 'app.cipher.key'. <br>
     * The value is, e.g. ___change__me___ <br>
     * comment: Secret key for encryption (change this value for production).