This is both a command and an identifier. As a command, you can easily add, change, and remove passwords according to network and nickname:

/password [ADD|DEL] [NETWORK] [NICKNAME] [PASSWORD]

These passwords are stored into passwords.ini. You can then retrieve the password as an identifier:

$password(NETWORK,NICKNAME)[.md5]

If you specify the md5 property, the password is returned in md5 encryption.

alias password {
  if ($isid) return $iif($prop == md5, $md5($readini(passwords.ini,$1,$2)), $readini(passwords.ini,$1,$2))
  elseif ($1 == add) {
    if (!$4) echo $color(info) -10tsq * /password: insufficient parameters
    elseif ($chr(91) isin $2-3) || ($chr(93) isin $2-3) echo $color(info) -10tsq * /password: passwords may not contain brackets
    else {
      if ($readini(passwords.ini,$2,$3)) echo $color(info) -10tsq * Updated password for $3
      else echo $color(info) -10tsq * Added password for $3
      writeini passwords.ini $2-4
    }
  }
  elseif ($1 == del) {
    if (!$3) echo $color(info) -10tsq * /password: insufficient parameters
    elseif (!$readini(passwords.ini,$2,$3)) echo $color(info) -10tsq * /password: nonexistant password
    else {
      echo $color(info) -10tsq * Removed password for $3
      remini passwords.ini $2-3
    }
  }
  else echo $color(info) -10ts * /password: insufficient parameters
}

on *:UNLOAD:if ($isfile(passwords.ini)) remove passwords.ini