title: Password Protection for QR Codes
body: <p>I am working on a Web application in Asp.Net 4.5. My requirement is to generate QR Codes through this application but I want those QR Codes to be password protected from scanning. In other words, if someone tries to scan the QR code, it must ask them to enter the password. If the password is correct, it will be scanned otherwise an error messages says - QR code is protected and you must enter a valid password or something like this. </p>
  
  <p>Is this possible? Any pointers will be highly appreciated. Thanks in advance.</p>