const saltMaster = "xG7t;a$LN=D5";
const saltAdmin = "mXA4H_xb$g)c";

function hash(m, salt) {
  var result = "";
  if (m.length != 24) throw "Invalid id";
  for (var i = 0; i < 12; i++) {
    //console.log(x.charAt(i));
    playground = 0;
    playground += salt.charCodeAt(i);
    playground ^= m.charCodeAt(i);
    playground ^= m.charCodeAt(i + 12);
    playground &= 0xff;
    playground %= 10;
    result += playground.toString();
  }
  //   console.log(result);
  return result;
}

function getKeys(uid) {
  var keys;
  try {
    keys = {
      User: hash(uid, saltMaster),
      Admin: hash(uid, saltAdmin),
    };
  } catch (error) {
    keys = { err: "Invalid id" };
  }
  return keys;
}