title: Storing Credit Card Information? Protect and encrypt credit card information at client side and server side
body: <p>I have an application will let user input their credit card information and store that information at Server side. Example : When they buy something, we will get money from them automatic. Do you know how to protect/encrypt user's information credit card at client and server side?
  Should we store user credit card information on database server? Or somewhere else?</p>
  
  <p>Thank you.</p>