docs: public static byte[] stringToSalt(final String string) {
      try {
        final MessageDigest digest = MessageDigest.getInstance("SHA-1");
        digest.reset();
        return digest.digest(string.getBytes("UTF-8"));
      } catch (final NoSuchAlgorithmException ex) {
        throw new RuntimeException(ex);
      } catch (final UnsupportedEncodingException ex) {
        throw new RuntimeException(ex);
      }
    }