secure code in ASP classic for ' Stay signed in '

Looking for quotes for code in ASP classic for ' Stay signed in ' using cookies in a secure manner that will not allow a hacker to use cookie poisoning. Cookie to be encrypted and expiry date not to be stored on the cookie etc. If user doesn't tick the box which says, 'Stay signed in' use cookie to keep user logged in for an hour and if user does tick the box use cookie to keep user logged in indefinitely and to remember the user next time they come back and log them in without username and password. Provide us with 1. the checkbox for the form on the sign in page, 2. ASP code to see has the checkbox been ticked, create the appropriate cookie, save relevant information to the database (we will provide you with the table name and existing columns) 3. ASP code on validate include file to check if the user is logged each time they visit a page 4. ASP code to sign out and 5. ASP code remember the user the next time they come back and redirect to the welcome page Please use the words 'safe cookie' in your answer to show you have read this