startup

while true do
term.clear()
if fs.exists("/disk/id") then
  content=fs.open("/disk/id", "r")
  line=content.readLine()
  limit=0
  for i=1, string.len(line) do
    if string.sub(line, i, i) == ":" then
      limit=i
      break
    end
  end
  user=string.sub(line, 1, limit-1)
  hash=tonumber(string.sub(line, limit+1, string.len(line)))
  content.close()
  print("Identified as " .. user)
  term.write("Enter your password: ")
  pass=read("*")
  hashed=1
  for i=1, string.len(pass) do
    hashed=hashed+157*string.byte(pass, i)
    if i % 2 == 0 then hashed=hashed*503
    else hashed=hashed*947
    end
  end
  if hashed == hash then
    print("Connected")
  else
    print("Wrong password")
  end
else
  print("Enter your ID")
end
sleep(5)
end