title: Encrypt Or Hide QueryString at Asp.net website using .net 3.5
body: <p>I have an existing asp.net web site built with master pages and what I need to hide or encrypt all pass query strings values in a common place without changing a lot of code.</p>
  
  <p>Can any one help me with this please .. or is there another idea instead of hiding or encrypting >>? </p>
  
  <p>Thanks.</p>