title: How to deal with ftp password in web application in a secure manner
body: <p>I'm working on a script (PHP+MySQL) that will let you edit file over FTP. 
  What I'm trying to do is when user is logged in and connects to the server I want to memorize ftp password so it can be reused to reconnect to the server transparently (for example when browsing files). 
  I don't want to store raw password in database for security reasons. I was thinking about storing password in a cookie with reference to the connection id in the database. But this doesn't sound secure enough either. 
  How about storing temporary password entry in a database?</p>
  
  <p>Any ideas how to approach this problem? </p>