Decide on appropriate mechanism to save current search filters

Currently, TorStatus requires cookies to be enabled, which are used only to store hashed sessionIDs that map to encrypted search preferences that are stored on the TorStatus server. Many users have cookies disabled, however. We should provide functionality to these users.

Some Django programmers have written middleware that passes the sessionID as a GET to the controller if the client has cookies disabled. This doesn't seem to be any more secure than simply enabling cookies for the TorStatus website, however.

It'd be nice to hear what everyone thinks about the mechanism that is currently being used to store search preferences. What would be better way to implement this functionality?