code: private void initialize() {
          createKeysIfNotExist();
          if (keyPair == null) {
              try {
                  loadKeyPair();
              } catch (IOException | NoSuchAlgorithmException | InvalidKeySpecException e) {
                  LOGGER.error("An error occurred loading key pair");
                  LOGGER.error(e.getMessage());
              }
          }
          if (secretKey == null) {
              try {
                  loadSecretKey();
              } catch (IOException | ClassNotFoundException e) {
                  LOGGER.error("An error occurred loading secret key");
                  LOGGER.error(e.getMessage());
              }
          }
      }
docs: Initializes the KeyManager