You can use a hashing algorithm, such as MD5, to store encrypted passwords, and when it's time to authenticate a user you can process the password entered by the user with the same hashing algorithm to compare it with the previously encrypted password.

 

FoxWeb's Auth object does not support this functionality yet, but we do intend to support it in a subsequent version.  If you must have encrypted passwords right now, you will have to duplicate the functionality of the Auth object.