title: Storing information in cookie to remember login
body: <p>I want to store some of the user information (hashed) in cookie to remember the login to sign in automatically. In order to make it relatively secure, I'd add user browser information with <code>HTTP_USER_AGENT</code> which will be something like: <code>Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040803 Firefox/0.9.3</code>
  I won't add user IP as the dynamic IP changes everytime. Is there any other user specific information which I can store in hashed cookie to make it bit secure to prevent the cookie stealing etc?
  Thanks.</p>