I've written a neat bunch of PHP scripts that create and manage a series of folders for users to access files "securely" with BASIC http auth on the Internet. It creates and manages the .htpasswd and the .htaccess files for each folder.

Now I've found out that BASIC is not really all that secure and that I should have used DIGEST auth instead. Is this going to require a major change from what I'm doing now or is there a way I can upgrade without a lot of redesign?