Last week, I had the opportunity to help implement and integrate a strong password policy into the legacy web application developed using ASP technology. The solution I proposed was to use jQuery to display the password strength meter to help users create strong passwords. One of my colleagues asked if we would have to modify multiple pages and files if the client decided to alter the password policy. The answer is no. Thanks to jQuery, the client-side script and code behind can share the same information. The password policy information is stored in an XML file and the client-side script and code behind are reading from this to perform the password strength validation.