title: How to prevent replay attacks or multiple postbacks using Nonce Key in ASP.NET MVC 2.0
body: <p><strong>How to prevent replay attacks or multiple postbacks using Nonce Key in MVC 2.0</strong></p>
  
  <p>I am looking for a low level implementaion solution for this. It does not have to be a complete one, but any examples of having used Nonce keys for this purpose in an action filter would be welcomed.</p>
  
  <p>The idea is to stop multiple form submissions by user via multiple button press or enter key hits. I allready have a JavaScript solution for this but I am looking for a generic server side option now.</p>
  
  <p>My Question is based on the solution offered here: <a href="https://stackoverflow.com/questions/888965/what-methods-are-available-to-stop-multiple-postbacks-of-a-form-in-asp-net-mvc">What methods are available to stop multiple postbacks of a form in ASP.NET MVC?</a></p>