while true do

term.clear()

term.setCursorPos(1, 1)

mon = peripheral.wrap("top")
mon.clear()

local user
term.write("Enter a username: ")
user = read()

mon.setCursorPos(3, 1)
mon.write("User:".. user)
mon.setCursorPos(3, 2)

local password1
term.write("Enter a password: ")
password1 = read("*")

redstone.setOutput( "left", true)
term.clear()
term.setCursorPos(1, 1)
print("Closing the door in 5 seconds")
sleep(5)
redstone.setOutput( "left", false)

term.clear()
term.setCursorPos(1, 1)

local password2
print("Enter your password to open the door: ")

mon.setCursorPos(8, 2)

password2 = read("*")

while password1 ~= password2 do
  print("wrong password.")
  sleep(1)
  term.clear()
  term.setCursorPos(1, 1)
  print("Enter your password to open the door: ")
  password2 = read("*")
end

if password1 == password2 then
  print("Correct.")
  redstone.setOutput("left", true)
  sleep(5)
  redstone.setOutput("left", false)
end

end