while true do

term.clear()

term.setCursorPos(1, 1)

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

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: ")
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