Interface for storing arbitray python objects.  Uses a user's 
password as the cypher to store an object in TextField. 
Object must be able to be pickeled. Authentication is done by
using django authenitication module.

Models.py
Methods Prototypes
    def set(self, user, password, obj):
        '''
        Setting an encrypted string. Password must be the 
        user's password.  Can encrypt a object that can be
        pickeled.
        '''
        
        return 0 # Everything ok

    def get(self, user, password):
        '''
        Retreving an encrypted string.  Password must be the 
        user's password.  Returns a python object.
        '''
        return object